Xen PV guest support for 8.2
Add Xen PV console and network support, the former of which enables the Xen "PV shim" to be used to support PV guests. Also clean up the block support and make it work when the user passes just 'drive file=IMAGE,if=xen' on the command line. Update the documentation to reflect all of these, taking the opportunity to simplify what it says about q35 by making unplug work for AHCI. Ignore the VCPU_SSHOTTMR_future timer flag, and advertise the 'fixed' per-vCPU upcall vector support, as newer upstream Xen do. -----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEEvgfZ/VSAmrLEsP9fY3Ys2mfi81kFAmVJ/7EUHGR3bXcyQGlu ZnJhZGVhZC5vcmcACgkQY3Ys2mfi81k+/xAAswivVR4+nwz3wTSN7EboGogS3hy+ ZsTpvbJnfprGQJAK8vv8OP4eunaCJkO/dy3M/33Dh270msmV6I/1ki0E1RIPG45D n5wKM1Zxk0ABvjIgdp3xiLwITTdruJ+k9aqV8U9quhjgNFdOa7yjBOG8MD32GEPZ KHbavJ++huOu7+DZHJRNRq4gI/fREIULoPGHVg7WuEiRDYokOOmMROXqmTHTaUkV yFhkofzWxlpYhh7qRQx6/A80CSf7xwCof8krjdMCOYj3XGzYVZND0z5ZfHQYEwqt fowhargA8gH4V3d21S/MWCaZ+QrswFXZhcnl5wuGgWakV4ChvFETKs+fz2mODWUx 2T13trqeFJ5ElTrSpH1iWCoSEy6KCeLecvx7c/6HPSkDYQ3w5q8dXPpqgEtXY24S Wcmw4PkQ+HrLX7wbSU7QLyTZjvCQLFZ3Sb0uTf2zwsJZyeCCiT2lqAaogoMm6Kg0 m/jG1JzE+9AC3j0Upp1lS3EK1qdxIuLdBuIcaEBEjy7Am+Y14PlZYoU2c751KbRF kqnIOYMoijX0PJDomPqCQtYNE0mrtogo0AbcFFIu+4k25vGbkl7xS5p2du9qw2Rd ++IdqQYzdzrUcIwmxocFQqFBJQ2dcbOGB1d7+VJ+A1Uj3yY2/DnFG5WqSaqS0KJi ZhBdFs3OTlPnRoM= =Dg79 -----END PGP SIGNATURE----- Merge tag 'pull-xenfv.for-upstream-20231107' of git://git.infradead.org/users/dwmw2/qemu into staging Xen PV guest support for 8.2 Add Xen PV console and network support, the former of which enables the Xen "PV shim" to be used to support PV guests. Also clean up the block support and make it work when the user passes just 'drive file=IMAGE,if=xen' on the command line. Update the documentation to reflect all of these, taking the opportunity to simplify what it says about q35 by making unplug work for AHCI. Ignore the VCPU_SSHOTTMR_future timer flag, and advertise the 'fixed' per-vCPU upcall vector support, as newer upstream Xen do. # -----BEGIN PGP SIGNATURE----- # # iQJIBAABCAAyFiEEvgfZ/VSAmrLEsP9fY3Ys2mfi81kFAmVJ/7EUHGR3bXcyQGlu # ZnJhZGVhZC5vcmcACgkQY3Ys2mfi81k+/xAAswivVR4+nwz3wTSN7EboGogS3hy+ # ZsTpvbJnfprGQJAK8vv8OP4eunaCJkO/dy3M/33Dh270msmV6I/1ki0E1RIPG45D # n5wKM1Zxk0ABvjIgdp3xiLwITTdruJ+k9aqV8U9quhjgNFdOa7yjBOG8MD32GEPZ # KHbavJ++huOu7+DZHJRNRq4gI/fREIULoPGHVg7WuEiRDYokOOmMROXqmTHTaUkV # yFhkofzWxlpYhh7qRQx6/A80CSf7xwCof8krjdMCOYj3XGzYVZND0z5ZfHQYEwqt # fowhargA8gH4V3d21S/MWCaZ+QrswFXZhcnl5wuGgWakV4ChvFETKs+fz2mODWUx # 2T13trqeFJ5ElTrSpH1iWCoSEy6KCeLecvx7c/6HPSkDYQ3w5q8dXPpqgEtXY24S # Wcmw4PkQ+HrLX7wbSU7QLyTZjvCQLFZ3Sb0uTf2zwsJZyeCCiT2lqAaogoMm6Kg0 # m/jG1JzE+9AC3j0Upp1lS3EK1qdxIuLdBuIcaEBEjy7Am+Y14PlZYoU2c751KbRF # kqnIOYMoijX0PJDomPqCQtYNE0mrtogo0AbcFFIu+4k25vGbkl7xS5p2du9qw2Rd # ++IdqQYzdzrUcIwmxocFQqFBJQ2dcbOGB1d7+VJ+A1Uj3yY2/DnFG5WqSaqS0KJi # ZhBdFs3OTlPnRoM= # =Dg79 # -----END PGP SIGNATURE----- # gpg: Signature made Tue 07 Nov 2023 17:13:21 HKT # gpg: using RSA key BE07D9FD54809AB2C4B0FF5F63762CDA67E2F359 # gpg: issuer "dwmw2@infradead.org" # gpg: Good signature from "David Woodhouse <dwmw2@infradead.org>" [unknown] # gpg: aka "David Woodhouse <dwmw2@exim.org>" [unknown] # gpg: aka "David Woodhouse <david@woodhou.se>" [unknown] # gpg: aka "David Woodhouse <dwmw2@kernel.org>" [unknown] # gpg: WARNING: The key's User ID is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: BE07 D9FD 5480 9AB2 C4B0 FF5F 6376 2CDA 67E2 F359 * tag 'pull-xenfv.for-upstream-20231107' of git://git.infradead.org/users/dwmw2/qemu: docs: update Xen-on-KVM documentation xen-platform: unplug AHCI disks hw/i386/pc: support '-nic' for xen-net-device hw/xen: update Xen PV NIC to XenDevice model hw/xen: only remove peers of PCI NICs on unplug hw/xen: add support for Xen primary console in emulated mode hw/xen: update Xen console to XenDevice model hw/xen: do not repeatedly try to create a failing backend device hw/xen: add get_frontend_path() method to XenDeviceClass hw/xen: automatically assign device index to block devices hw/xen: populate store frontend nodes with XenStore PFN/port i386/xen: advertise XEN_HVM_CPUID_UPCALL_VECTOR in CPUID include: update Xen public headers to Xen 4.17.2 release hw/xen: Clean up event channel 'type_val' handling to use union i386/xen: Ignore VCPU_SSHOTTMR_future flag in set_singleshot_timer() Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi
commit
3e34860a3a
@ -490,7 +490,7 @@ S: Supported
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F: include/sysemu/kvm_xen.h
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F: target/i386/kvm/xen*
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F: hw/i386/kvm/xen*
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F: tests/avocado/xen_guest.py
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F: tests/avocado/kvm_xen_guest.py
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Guest CPU Cores (other accelerators)
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------------------------------------
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15
blockdev.c
15
blockdev.c
@ -255,13 +255,13 @@ void drive_check_orphaned(void)
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* Ignore default drives, because we create certain default
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* drives unconditionally, then leave them unclaimed. Not the
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* users fault.
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* Ignore IF_VIRTIO, because it gets desugared into -device,
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* so we can leave failing to -device.
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* Ignore IF_VIRTIO or IF_XEN, because it gets desugared into
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* -device, so we can leave failing to -device.
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* Ignore IF_NONE, because leaving unclaimed IF_NONE remains
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* available for device_add is a feature.
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*/
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if (dinfo->is_default || dinfo->type == IF_VIRTIO
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|| dinfo->type == IF_NONE) {
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|| dinfo->type == IF_XEN || dinfo->type == IF_NONE) {
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continue;
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}
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if (!blk_get_attached_dev(blk)) {
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@ -977,6 +977,15 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type,
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qemu_opt_set(devopts, "driver", "virtio-blk", &error_abort);
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qemu_opt_set(devopts, "drive", qdict_get_str(bs_opts, "id"),
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&error_abort);
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} else if (type == IF_XEN) {
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QemuOpts *devopts;
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devopts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
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&error_abort);
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qemu_opt_set(devopts, "driver",
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(media == MEDIA_CDROM) ? "xen-cdrom" : "xen-disk",
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&error_abort);
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qemu_opt_set(devopts, "drive", qdict_get_str(bs_opts, "id"),
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&error_abort);
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}
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filename = qemu_opt_get(legacy_opts, "file");
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@ -15,46 +15,24 @@ Setup
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-----
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Xen mode is enabled by setting the ``xen-version`` property of the KVM
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accelerator, for example for Xen 4.10:
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accelerator, for example for Xen 4.17:
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.. parsed-literal::
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|qemu_system| --accel kvm,xen-version=0x4000a,kernel-irqchip=split
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|qemu_system| --accel kvm,xen-version=0x40011,kernel-irqchip=split
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Additionally, virtual APIC support can be advertised to the guest through the
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``xen-vapic`` CPU flag:
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.. parsed-literal::
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|qemu_system| --accel kvm,xen-version=0x4000a,kernel-irqchip=split --cpu host,+xen_vapic
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|qemu_system| --accel kvm,xen-version=0x40011,kernel-irqchip=split --cpu host,+xen-vapic
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When Xen support is enabled, QEMU changes hypervisor identification (CPUID
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0x40000000..0x4000000A) to Xen. The KVM identification and features are not
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advertised to a Xen guest. If Hyper-V is also enabled, the Xen identification
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moves to leaves 0x40000100..0x4000010A.
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The Xen platform device is enabled automatically for a Xen guest. This allows
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a guest to unplug all emulated devices, in order to use Xen PV block and network
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drivers instead. Under Xen, the boot disk is typically available both via IDE
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emulation, and as a PV block device. Guest bootloaders typically use IDE to load
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the guest kernel, which then unplugs the IDE and continues with the Xen PV block
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device.
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This configuration can be achieved as follows
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.. parsed-literal::
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|qemu_system| -M pc --accel kvm,xen-version=0x4000a,kernel-irqchip=split \\
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-drive file=${GUEST_IMAGE},if=none,id=disk,file.locking=off -device xen-disk,drive=disk,vdev=xvda \\
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-drive file=${GUEST_IMAGE},index=2,media=disk,file.locking=off,if=ide
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It is necessary to use the pc machine type, as the q35 machine uses AHCI instead
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of legacy IDE, and AHCI disks are not unplugged through the Xen PV unplug
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mechanism.
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VirtIO devices can also be used; Linux guests may need to be dissuaded from
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umplugging them by adding 'xen_emul_unplug=never' on their command line.
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Properties
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----------
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@ -63,7 +41,10 @@ The following properties exist on the KVM accelerator object:
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``xen-version``
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This property contains the Xen version in ``XENVER_version`` form, with the
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major version in the top 16 bits and the minor version in the low 16 bits.
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Setting this property enables the Xen guest support.
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Setting this property enables the Xen guest support. If Xen version 4.5 or
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greater is specified, the HVM leaf in Xen CPUID is populated. Xen version
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4.6 enables the vCPU ID in CPUID, and version 4.17 advertises vCPU upcall
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vector support to the guest.
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``xen-evtchn-max-pirq``
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Xen PIRQs represent an emulated physical interrupt, either GSI or MSI, which
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@ -83,8 +64,78 @@ The following properties exist on the KVM accelerator object:
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through simultaneous grants. For guests with large numbers of PV devices and
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high throughput, it may be desirable to increase this value.
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OS requirements
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---------------
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Xen paravirtual devices
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-----------------------
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The Xen PCI platform device is enabled automatically for a Xen guest. This
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allows a guest to unplug all emulated devices, in order to use paravirtual
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block and network drivers instead.
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Those paravirtual Xen block, network (and console) devices can be created
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through the command line, and/or hot-plugged.
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To provide a Xen console device, define a character device and then a device
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of type ``xen-console`` to connect to it. For the Xen console equivalent of
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the handy ``-serial mon:stdio`` option, for example:
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.. parsed-literal::
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-chardev stdio,mux=on,id=char0,signal=off -mon char0 \\
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-device xen-console,chardev=char0
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The Xen network device is ``xen-net-device``, which becomes the default NIC
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model for emulated Xen guests, meaning that just the default NIC provided
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by QEMU should automatically work and present a Xen network device to the
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guest.
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Disks can be configured with '``-drive file=${GUEST_IMAGE},if=xen``' and will
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appear to the guest as ``xvda`` onwards.
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Under Xen, the boot disk is typically available both via IDE emulation, and
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as a PV block device. Guest bootloaders typically use IDE to load the guest
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kernel, which then unplugs the IDE and continues with the Xen PV block device.
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This configuration can be achieved as follows:
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.. parsed-literal::
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|qemu_system| --accel kvm,xen-version=0x40011,kernel-irqchip=split \\
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-drive file=${GUEST_IMAGE},if=xen \\
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-drive file=${GUEST_IMAGE},file.locking=off,if=ide
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VirtIO devices can also be used; Linux guests may need to be dissuaded from
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umplugging them by adding '``xen_emul_unplug=never``' on their command line.
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Booting Xen PV guests
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---------------------
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Booting PV guest kernels is possible by using the Xen PV shim (a version of Xen
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itself, designed to run inside a Xen HVM guest and provide memory management
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services for one guest alone).
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The Xen binary is provided as the ``-kernel`` and the guest kernel itself (or
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PV Grub image) as the ``-initrd`` image, which actually just means the first
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multiboot "module". For example:
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.. parsed-literal::
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|qemu_system| --accel kvm,xen-version=0x40011,kernel-irqchip=split \\
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-chardev stdio,id=char0 -device xen-console,chardev=char0 \\
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-display none -m 1G -kernel xen -initrd bzImage \\
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-append "pv-shim console=xen,pv -- console=hvc0 root=/dev/xvda1" \\
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-drive file=${GUEST_IMAGE},if=xen
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The Xen image must be built with the ``CONFIG_XEN_GUEST`` and ``CONFIG_PV_SHIM``
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options, and as of Xen 4.17, Xen's PV shim mode does not support using a serial
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port; it must have a Xen console or it will panic.
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The example above provides the guest kernel command line after a separator
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(" ``--`` ") on the Xen command line, and does not provide the guest kernel
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with an actual initramfs, which would need to listed as a second multiboot
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module. For more complicated alternatives, see the command line
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documentation for the ``-initrd`` option.
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Host OS requirements
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--------------------
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The minimal Xen support in the KVM accelerator requires the host to be running
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Linux v5.12 or newer. Later versions add optimisations: Linux v5.17 added
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@ -27,13 +27,119 @@
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#include "sysemu/block-backend.h"
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#include "sysemu/iothread.h"
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#include "dataplane/xen-block.h"
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#include "hw/xen/interface/io/xs_wire.h"
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#include "trace.h"
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#define XVDA_MAJOR 202
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#define XVDQ_MAJOR (1 << 20)
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#define XVDBGQCV_MAJOR ((1 << 21) - 1)
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#define HDA_MAJOR 3
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#define HDC_MAJOR 22
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#define SDA_MAJOR 8
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static int vdev_to_diskno(unsigned int vdev_nr)
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{
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switch (vdev_nr >> 8) {
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case XVDA_MAJOR:
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case SDA_MAJOR:
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return (vdev_nr >> 4) & 0x15;
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case HDA_MAJOR:
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return (vdev_nr >> 6) & 1;
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case HDC_MAJOR:
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return ((vdev_nr >> 6) & 1) + 2;
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case XVDQ_MAJOR ... XVDBGQCV_MAJOR:
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return (vdev_nr >> 8) & 0xfffff;
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default:
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return -1;
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}
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}
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#define MAX_AUTO_VDEV 4096
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/*
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* Find a free device name in the xvda → xvdfan range and set it in
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* blockdev->props.vdev. Our definition of "free" is that there must
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* be no other disk or partition with the same disk number.
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*
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* You are technically permitted to have all of hda, hda1, sda, sda1,
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* xvda and xvda1 as *separate* PV block devices with separate backing
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* stores. That doesn't make it a good idea. This code will skip xvda
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* if *any* of those "conflicting" devices already exists.
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*
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* The limit of xvdfan (disk 4095) is fairly arbitrary just to avoid a
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* stupidly sized bitmap, but Linux as of v6.6 doesn't support anything
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* higher than that anyway.
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*/
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static bool xen_block_find_free_vdev(XenBlockDevice *blockdev, Error **errp)
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{
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XenBus *xenbus = XEN_BUS(qdev_get_parent_bus(DEVICE(blockdev)));
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unsigned long used_devs[BITS_TO_LONGS(MAX_AUTO_VDEV)];
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XenBlockVdev *vdev = &blockdev->props.vdev;
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char fe_path[XENSTORE_ABS_PATH_MAX + 1];
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char **existing_frontends;
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unsigned int nr_existing = 0;
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unsigned int vdev_nr;
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int i, disk = 0;
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snprintf(fe_path, sizeof(fe_path), "/local/domain/%u/device/vbd",
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blockdev->xendev.frontend_id);
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existing_frontends = qemu_xen_xs_directory(xenbus->xsh, XBT_NULL, fe_path,
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&nr_existing);
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if (!existing_frontends && errno != ENOENT) {
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error_setg_errno(errp, errno, "cannot read %s", fe_path);
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return false;
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}
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memset(used_devs, 0, sizeof(used_devs));
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for (i = 0; i < nr_existing; i++) {
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if (qemu_strtoui(existing_frontends[i], NULL, 10, &vdev_nr)) {
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free(existing_frontends[i]);
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continue;
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}
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free(existing_frontends[i]);
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disk = vdev_to_diskno(vdev_nr);
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if (disk < 0 || disk >= MAX_AUTO_VDEV) {
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continue;
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}
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set_bit(disk, used_devs);
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}
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free(existing_frontends);
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disk = find_first_zero_bit(used_devs, MAX_AUTO_VDEV);
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if (disk == MAX_AUTO_VDEV) {
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error_setg(errp, "cannot find device vdev for block device");
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||||
return false;
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||||
}
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||||
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||||
vdev->type = XEN_BLOCK_VDEV_TYPE_XVD;
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vdev->partition = 0;
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||||
vdev->disk = disk;
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||||
if (disk < (1 << 4)) {
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||||
vdev->number = (XVDA_MAJOR << 8) | (disk << 4);
|
||||
} else {
|
||||
vdev->number = (XVDQ_MAJOR << 8) | (disk << 8);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static char *xen_block_get_name(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
XenBlockDevice *blockdev = XEN_BLOCK_DEVICE(xendev);
|
||||
XenBlockVdev *vdev = &blockdev->props.vdev;
|
||||
|
||||
if (vdev->type == XEN_BLOCK_VDEV_TYPE_INVALID &&
|
||||
!xen_block_find_free_vdev(blockdev, errp)) {
|
||||
return NULL;
|
||||
}
|
||||
return g_strdup_printf("%lu", vdev->number);
|
||||
}
|
||||
|
||||
@ -482,10 +588,10 @@ static void xen_block_set_vdev(Object *obj, Visitor *v, const char *name,
|
||||
case XEN_BLOCK_VDEV_TYPE_DP:
|
||||
case XEN_BLOCK_VDEV_TYPE_XVD:
|
||||
if (vdev->disk < (1 << 4) && vdev->partition < (1 << 4)) {
|
||||
vdev->number = (202 << 8) | (vdev->disk << 4) |
|
||||
vdev->number = (XVDA_MAJOR << 8) | (vdev->disk << 4) |
|
||||
vdev->partition;
|
||||
} else if (vdev->disk < (1 << 20) && vdev->partition < (1 << 8)) {
|
||||
vdev->number = (1 << 28) | (vdev->disk << 8) |
|
||||
vdev->number = (XVDQ_MAJOR << 8) | (vdev->disk << 8) |
|
||||
vdev->partition;
|
||||
} else {
|
||||
goto invalid;
|
||||
@ -495,10 +601,11 @@ static void xen_block_set_vdev(Object *obj, Visitor *v, const char *name,
|
||||
case XEN_BLOCK_VDEV_TYPE_HD:
|
||||
if ((vdev->disk == 0 || vdev->disk == 1) &&
|
||||
vdev->partition < (1 << 6)) {
|
||||
vdev->number = (3 << 8) | (vdev->disk << 6) | vdev->partition;
|
||||
vdev->number = (HDA_MAJOR << 8) | (vdev->disk << 6) |
|
||||
vdev->partition;
|
||||
} else if ((vdev->disk == 2 || vdev->disk == 3) &&
|
||||
vdev->partition < (1 << 6)) {
|
||||
vdev->number = (22 << 8) | ((vdev->disk - 2) << 6) |
|
||||
vdev->number = (HDC_MAJOR << 8) | ((vdev->disk - 2) << 6) |
|
||||
vdev->partition;
|
||||
} else {
|
||||
goto invalid;
|
||||
@ -507,7 +614,8 @@ static void xen_block_set_vdev(Object *obj, Visitor *v, const char *name,
|
||||
|
||||
case XEN_BLOCK_VDEV_TYPE_SD:
|
||||
if (vdev->disk < (1 << 4) && vdev->partition < (1 << 4)) {
|
||||
vdev->number = (8 << 8) | (vdev->disk << 4) | vdev->partition;
|
||||
vdev->number = (SDA_MAJOR << 8) | (vdev->disk << 4) |
|
||||
vdev->partition;
|
||||
} else {
|
||||
goto invalid;
|
||||
}
|
||||
|
||||
@ -105,3 +105,11 @@ cadence_uart_baudrate(unsigned baudrate) "baudrate %u"
|
||||
# sh_serial.c
|
||||
sh_serial_read(char *id, unsigned size, uint64_t offs, uint64_t val) " %s size %d offs 0x%02" PRIx64 " -> 0x%02" PRIx64
|
||||
sh_serial_write(char *id, unsigned size, uint64_t offs, uint64_t val) "%s size %d offs 0x%02" PRIx64 " <- 0x%02" PRIx64
|
||||
|
||||
# xen_console.c
|
||||
xen_console_connect(unsigned int idx, unsigned int ring_ref, unsigned int port, unsigned int limit) "idx %u ring_ref %u port %u limit %u"
|
||||
xen_console_disconnect(unsigned int idx) "idx %u"
|
||||
xen_console_unrealize(unsigned int idx) "idx %u"
|
||||
xen_console_realize(unsigned int idx, const char *chrdev) "idx %u chrdev %s"
|
||||
xen_console_device_create(unsigned int idx) "idx %u"
|
||||
xen_console_device_destroy(unsigned int idx) "idx %u"
|
||||
|
||||
@ -20,15 +20,22 @@
|
||||
*/
|
||||
|
||||
#include "qemu/osdep.h"
|
||||
#include "qemu/cutils.h"
|
||||
#include <sys/select.h>
|
||||
#include <termios.h>
|
||||
|
||||
#include "qapi/error.h"
|
||||
#include "sysemu/sysemu.h"
|
||||
#include "chardev/char-fe.h"
|
||||
#include "hw/xen/xen-legacy-backend.h"
|
||||
|
||||
#include "hw/xen/xen-backend.h"
|
||||
#include "hw/xen/xen-bus-helper.h"
|
||||
#include "hw/qdev-properties.h"
|
||||
#include "hw/qdev-properties-system.h"
|
||||
#include "hw/xen/interface/io/console.h"
|
||||
#include "hw/xen/interface/io/xs_wire.h"
|
||||
#include "hw/xen/interface/grant_table.h"
|
||||
#include "hw/i386/kvm/xen_primary_console.h"
|
||||
#include "trace.h"
|
||||
|
||||
struct buffer {
|
||||
uint8_t *data;
|
||||
@ -39,16 +46,22 @@ struct buffer {
|
||||
};
|
||||
|
||||
struct XenConsole {
|
||||
struct XenLegacyDevice xendev; /* must be first */
|
||||
struct XenDevice xendev; /* must be first */
|
||||
XenEventChannel *event_channel;
|
||||
int dev;
|
||||
struct buffer buffer;
|
||||
char console[XEN_BUFSIZE];
|
||||
int ring_ref;
|
||||
char *fe_path;
|
||||
unsigned int ring_ref;
|
||||
void *sring;
|
||||
CharBackend chr;
|
||||
int backlog;
|
||||
};
|
||||
typedef struct XenConsole XenConsole;
|
||||
|
||||
static void buffer_append(struct XenConsole *con)
|
||||
#define TYPE_XEN_CONSOLE_DEVICE "xen-console"
|
||||
OBJECT_DECLARE_SIMPLE_TYPE(XenConsole, XEN_CONSOLE_DEVICE)
|
||||
|
||||
static bool buffer_append(XenConsole *con)
|
||||
{
|
||||
struct buffer *buffer = &con->buffer;
|
||||
XENCONS_RING_IDX cons, prod, size;
|
||||
@ -60,7 +73,7 @@ static void buffer_append(struct XenConsole *con)
|
||||
|
||||
size = prod - cons;
|
||||
if ((size == 0) || (size > sizeof(intf->out)))
|
||||
return;
|
||||
return false;
|
||||
|
||||
if ((buffer->capacity - buffer->size) < size) {
|
||||
buffer->capacity += (size + 1024);
|
||||
@ -73,7 +86,7 @@ static void buffer_append(struct XenConsole *con)
|
||||
|
||||
xen_mb();
|
||||
intf->out_cons = cons;
|
||||
xen_pv_send_notify(&con->xendev);
|
||||
xen_device_notify_event_channel(XEN_DEVICE(con), con->event_channel, NULL);
|
||||
|
||||
if (buffer->max_capacity &&
|
||||
buffer->size > buffer->max_capacity) {
|
||||
@ -89,6 +102,7 @@ static void buffer_append(struct XenConsole *con)
|
||||
if (buffer->consumed > buffer->max_capacity - over)
|
||||
buffer->consumed = buffer->max_capacity - over;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static void buffer_advance(struct buffer *buffer, size_t len)
|
||||
@ -100,7 +114,7 @@ static void buffer_advance(struct buffer *buffer, size_t len)
|
||||
}
|
||||
}
|
||||
|
||||
static int ring_free_bytes(struct XenConsole *con)
|
||||
static int ring_free_bytes(XenConsole *con)
|
||||
{
|
||||
struct xencons_interface *intf = con->sring;
|
||||
XENCONS_RING_IDX cons, prod, space;
|
||||
@ -118,13 +132,13 @@ static int ring_free_bytes(struct XenConsole *con)
|
||||
|
||||
static int xencons_can_receive(void *opaque)
|
||||
{
|
||||
struct XenConsole *con = opaque;
|
||||
XenConsole *con = opaque;
|
||||
return ring_free_bytes(con);
|
||||
}
|
||||
|
||||
static void xencons_receive(void *opaque, const uint8_t *buf, int len)
|
||||
{
|
||||
struct XenConsole *con = opaque;
|
||||
XenConsole *con = opaque;
|
||||
struct xencons_interface *intf = con->sring;
|
||||
XENCONS_RING_IDX prod;
|
||||
int i, max;
|
||||
@ -141,10 +155,10 @@ static void xencons_receive(void *opaque, const uint8_t *buf, int len)
|
||||
}
|
||||
xen_wmb();
|
||||
intf->in_prod = prod;
|
||||
xen_pv_send_notify(&con->xendev);
|
||||
xen_device_notify_event_channel(XEN_DEVICE(con), con->event_channel, NULL);
|
||||
}
|
||||
|
||||
static void xencons_send(struct XenConsole *con)
|
||||
static bool xencons_send(XenConsole *con)
|
||||
{
|
||||
ssize_t len, size;
|
||||
|
||||
@ -159,174 +173,472 @@ static void xencons_send(struct XenConsole *con)
|
||||
if (len < 1) {
|
||||
if (!con->backlog) {
|
||||
con->backlog = 1;
|
||||
xen_pv_printf(&con->xendev, 1,
|
||||
"backlog piling up, nobody listening?\n");
|
||||
}
|
||||
} else {
|
||||
buffer_advance(&con->buffer, len);
|
||||
if (con->backlog && len == size) {
|
||||
con->backlog = 0;
|
||||
xen_pv_printf(&con->xendev, 1, "backlog is gone\n");
|
||||
}
|
||||
}
|
||||
return len > 0;
|
||||
}
|
||||
|
||||
/* -------------------------------------------------------------------- */
|
||||
|
||||
static int store_con_info(struct XenConsole *con)
|
||||
static bool con_event(void *_xendev)
|
||||
{
|
||||
Chardev *cs = qemu_chr_fe_get_driver(&con->chr);
|
||||
char *pts = NULL;
|
||||
char *dom_path;
|
||||
g_autoptr(GString) path = NULL;
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(_xendev);
|
||||
bool done_something;
|
||||
|
||||
/* Only continue if we're talking to a pty. */
|
||||
if (!CHARDEV_IS_PTY(cs)) {
|
||||
return 0;
|
||||
}
|
||||
pts = cs->filename + 4;
|
||||
|
||||
dom_path = qemu_xen_xs_get_domain_path(xenstore, xen_domid);
|
||||
if (!dom_path) {
|
||||
return 0;
|
||||
if (xen_device_backend_get_state(&con->xendev) != XenbusStateConnected) {
|
||||
return false;
|
||||
}
|
||||
|
||||
path = g_string_new(dom_path);
|
||||
free(dom_path);
|
||||
done_something = buffer_append(con);
|
||||
|
||||
if (con->xendev.dev) {
|
||||
g_string_append_printf(path, "/device/console/%d", con->xendev.dev);
|
||||
} else {
|
||||
g_string_append(path, "/console");
|
||||
if (con->buffer.size - con->buffer.consumed) {
|
||||
done_something |= xencons_send(con);
|
||||
}
|
||||
g_string_append(path, "/tty");
|
||||
|
||||
if (xenstore_write_str(con->console, path->str, pts)) {
|
||||
fprintf(stderr, "xenstore_write_str for '%s' fail", path->str);
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
return done_something;
|
||||
}
|
||||
|
||||
static int con_init(struct XenLegacyDevice *xendev)
|
||||
/* -------------------------------------------------------------------- */
|
||||
|
||||
static bool xen_console_connect(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
struct XenConsole *con = container_of(xendev, struct XenConsole, xendev);
|
||||
char *type, *dom, label[32];
|
||||
int ret = 0;
|
||||
const char *output;
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(xendev);
|
||||
unsigned int port, limit;
|
||||
|
||||
/* setup */
|
||||
dom = qemu_xen_xs_get_domain_path(xenstore, con->xendev.dom);
|
||||
if (!xendev->dev) {
|
||||
snprintf(con->console, sizeof(con->console), "%s/console", dom);
|
||||
} else {
|
||||
snprintf(con->console, sizeof(con->console), "%s/device/console/%d", dom, xendev->dev);
|
||||
}
|
||||
free(dom);
|
||||
|
||||
type = xenstore_read_str(con->console, "type");
|
||||
if (!type || strcmp(type, "ioemu") != 0) {
|
||||
xen_pv_printf(xendev, 1, "not for me (type=%s)\n", type);
|
||||
ret = -1;
|
||||
goto out;
|
||||
if (xen_device_frontend_scanf(xendev, "ring-ref", "%u",
|
||||
&con->ring_ref) != 1) {
|
||||
error_setg(errp, "failed to read ring-ref");
|
||||
return false;
|
||||
}
|
||||
|
||||
output = xenstore_read_str(con->console, "output");
|
||||
|
||||
/* no Xen override, use qemu output device */
|
||||
if (output == NULL) {
|
||||
if (con->xendev.dev) {
|
||||
qemu_chr_fe_init(&con->chr, serial_hd(con->xendev.dev),
|
||||
&error_abort);
|
||||
}
|
||||
} else {
|
||||
snprintf(label, sizeof(label), "xencons%d", con->xendev.dev);
|
||||
qemu_chr_fe_init(&con->chr,
|
||||
/*
|
||||
* FIXME: sure we want to support implicit
|
||||
* muxed monitors here?
|
||||
*/
|
||||
qemu_chr_new_mux_mon(label, output, NULL),
|
||||
&error_abort);
|
||||
if (xen_device_frontend_scanf(xendev, "port", "%u", &port) != 1) {
|
||||
error_setg(errp, "failed to read remote port");
|
||||
return false;
|
||||
}
|
||||
|
||||
store_con_info(con);
|
||||
|
||||
out:
|
||||
g_free(type);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int con_initialise(struct XenLegacyDevice *xendev)
|
||||
{
|
||||
struct XenConsole *con = container_of(xendev, struct XenConsole, xendev);
|
||||
int limit;
|
||||
|
||||
if (xenstore_read_int(con->console, "ring-ref", &con->ring_ref) == -1)
|
||||
return -1;
|
||||
if (xenstore_read_int(con->console, "port", &con->xendev.remote_port) == -1)
|
||||
return -1;
|
||||
if (xenstore_read_int(con->console, "limit", &limit) == 0)
|
||||
if (xen_device_frontend_scanf(xendev, "limit", "%u", &limit) == 1) {
|
||||
con->buffer.max_capacity = limit;
|
||||
|
||||
if (!xendev->dev) {
|
||||
xen_pfn_t mfn = con->ring_ref;
|
||||
con->sring = qemu_xen_foreignmem_map(con->xendev.dom, NULL,
|
||||
PROT_READ | PROT_WRITE,
|
||||
1, &mfn, NULL);
|
||||
} else {
|
||||
con->sring = xen_be_map_grant_ref(xendev, con->ring_ref,
|
||||
PROT_READ | PROT_WRITE);
|
||||
}
|
||||
if (!con->sring)
|
||||
return -1;
|
||||
|
||||
xen_be_bind_evtchn(&con->xendev);
|
||||
con->event_channel = xen_device_bind_event_channel(xendev, port,
|
||||
con_event,
|
||||
con,
|
||||
errp);
|
||||
if (!con->event_channel) {
|
||||
return false;
|
||||
}
|
||||
|
||||
switch (con->dev) {
|
||||
case 0:
|
||||
/*
|
||||
* The primary console is special. For real Xen the ring-ref is
|
||||
* actually a GFN which needs to be mapped as foreignmem.
|
||||
*/
|
||||
if (xen_mode != XEN_EMULATE) {
|
||||
xen_pfn_t mfn = (xen_pfn_t)con->ring_ref;
|
||||
con->sring = qemu_xen_foreignmem_map(xendev->frontend_id, NULL,
|
||||
PROT_READ | PROT_WRITE,
|
||||
1, &mfn, NULL);
|
||||
if (!con->sring) {
|
||||
error_setg(errp, "failed to map console page");
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* For Xen emulation, we still follow the convention of ring-ref
|
||||
* holding the GFN, but we map the fixed GNTTAB_RESERVED_CONSOLE
|
||||
* grant ref because there is no implementation of foreignmem
|
||||
* operations for emulated mode. The emulation code which handles
|
||||
* the guest-side page and event channel also needs to be informed
|
||||
* of the backend event channel port, in order to reconnect to it
|
||||
* after a soft reset.
|
||||
*/
|
||||
xen_primary_console_set_be_port(
|
||||
xen_event_channel_get_local_port(con->event_channel));
|
||||
con->ring_ref = GNTTAB_RESERVED_CONSOLE;
|
||||
/* fallthrough */
|
||||
default:
|
||||
con->sring = xen_device_map_grant_refs(xendev,
|
||||
&con->ring_ref, 1,
|
||||
PROT_READ | PROT_WRITE,
|
||||
errp);
|
||||
if (!con->sring) {
|
||||
error_prepend(errp, "failed to map console grant ref: ");
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
trace_xen_console_connect(con->dev, con->ring_ref, port,
|
||||
con->buffer.max_capacity);
|
||||
|
||||
qemu_chr_fe_set_handlers(&con->chr, xencons_can_receive,
|
||||
xencons_receive, NULL, NULL, con, NULL, true);
|
||||
|
||||
xen_pv_printf(xendev, 1,
|
||||
"ring mfn %d, remote port %d, local port %d, limit %zd\n",
|
||||
con->ring_ref,
|
||||
con->xendev.remote_port,
|
||||
con->xendev.local_port,
|
||||
con->buffer.max_capacity);
|
||||
return 0;
|
||||
xencons_receive, NULL, NULL, con, NULL,
|
||||
true);
|
||||
return true;
|
||||
}
|
||||
|
||||
static void con_disconnect(struct XenLegacyDevice *xendev)
|
||||
static void xen_console_disconnect(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
struct XenConsole *con = container_of(xendev, struct XenConsole, xendev);
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(xendev);
|
||||
|
||||
qemu_chr_fe_deinit(&con->chr, false);
|
||||
xen_pv_unbind_evtchn(&con->xendev);
|
||||
trace_xen_console_disconnect(con->dev);
|
||||
|
||||
qemu_chr_fe_set_handlers(&con->chr, NULL, NULL, NULL, NULL,
|
||||
con, NULL, true);
|
||||
|
||||
if (con->event_channel) {
|
||||
xen_device_unbind_event_channel(xendev, con->event_channel,
|
||||
errp);
|
||||
con->event_channel = NULL;
|
||||
|
||||
if (xen_mode == XEN_EMULATE && !con->dev) {
|
||||
xen_primary_console_set_be_port(0);
|
||||
}
|
||||
}
|
||||
|
||||
if (con->sring) {
|
||||
if (!xendev->dev) {
|
||||
if (!con->dev && xen_mode != XEN_EMULATE) {
|
||||
qemu_xen_foreignmem_unmap(con->sring, 1);
|
||||
} else {
|
||||
xen_be_unmap_grant_ref(xendev, con->sring, con->ring_ref);
|
||||
xen_device_unmap_grant_refs(xendev, con->sring,
|
||||
&con->ring_ref, 1, errp);
|
||||
}
|
||||
con->sring = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static void con_event(struct XenLegacyDevice *xendev)
|
||||
static void xen_console_frontend_changed(XenDevice *xendev,
|
||||
enum xenbus_state frontend_state,
|
||||
Error **errp)
|
||||
{
|
||||
struct XenConsole *con = container_of(xendev, struct XenConsole, xendev);
|
||||
ERRP_GUARD();
|
||||
enum xenbus_state backend_state = xen_device_backend_get_state(xendev);
|
||||
|
||||
buffer_append(con);
|
||||
if (con->buffer.size - con->buffer.consumed)
|
||||
xencons_send(con);
|
||||
switch (frontend_state) {
|
||||
case XenbusStateInitialised:
|
||||
case XenbusStateConnected:
|
||||
if (backend_state == XenbusStateConnected) {
|
||||
break;
|
||||
}
|
||||
|
||||
xen_console_disconnect(xendev, errp);
|
||||
if (*errp) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (!xen_console_connect(xendev, errp)) {
|
||||
xen_device_backend_set_state(xendev, XenbusStateClosing);
|
||||
break;
|
||||
}
|
||||
|
||||
xen_device_backend_set_state(xendev, XenbusStateConnected);
|
||||
break;
|
||||
|
||||
case XenbusStateClosing:
|
||||
xen_device_backend_set_state(xendev, XenbusStateClosing);
|
||||
break;
|
||||
|
||||
case XenbusStateClosed:
|
||||
case XenbusStateUnknown:
|
||||
xen_console_disconnect(xendev, errp);
|
||||
if (*errp) {
|
||||
break;
|
||||
}
|
||||
|
||||
xen_device_backend_set_state(xendev, XenbusStateClosed);
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* -------------------------------------------------------------------- */
|
||||
static char *xen_console_get_name(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(xendev);
|
||||
|
||||
struct XenDevOps xen_console_ops = {
|
||||
.size = sizeof(struct XenConsole),
|
||||
.flags = DEVOPS_FLAG_IGNORE_STATE|DEVOPS_FLAG_NEED_GNTDEV,
|
||||
.init = con_init,
|
||||
.initialise = con_initialise,
|
||||
.event = con_event,
|
||||
.disconnect = con_disconnect,
|
||||
if (con->dev == -1) {
|
||||
XenBus *xenbus = XEN_BUS(qdev_get_parent_bus(DEVICE(xendev)));
|
||||
char fe_path[XENSTORE_ABS_PATH_MAX + 1];
|
||||
int idx = (xen_mode == XEN_EMULATE) ? 0 : 1;
|
||||
char *value;
|
||||
|
||||
/* Theoretically we could go up to INT_MAX here but that's overkill */
|
||||
while (idx < 100) {
|
||||
if (!idx) {
|
||||
snprintf(fe_path, sizeof(fe_path),
|
||||
"/local/domain/%u/console", xendev->frontend_id);
|
||||
} else {
|
||||
snprintf(fe_path, sizeof(fe_path),
|
||||
"/local/domain/%u/device/console/%u",
|
||||
xendev->frontend_id, idx);
|
||||
}
|
||||
value = qemu_xen_xs_read(xenbus->xsh, XBT_NULL, fe_path, NULL);
|
||||
if (!value) {
|
||||
if (errno == ENOENT) {
|
||||
con->dev = idx;
|
||||
goto found;
|
||||
}
|
||||
error_setg(errp, "cannot read %s: %s", fe_path,
|
||||
strerror(errno));
|
||||
return NULL;
|
||||
}
|
||||
free(value);
|
||||
idx++;
|
||||
}
|
||||
error_setg(errp, "cannot find device index for console device");
|
||||
return NULL;
|
||||
}
|
||||
found:
|
||||
return g_strdup_printf("%u", con->dev);
|
||||
}
|
||||
|
||||
static void xen_console_unrealize(XenDevice *xendev)
|
||||
{
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(xendev);
|
||||
|
||||
trace_xen_console_unrealize(con->dev);
|
||||
|
||||
/* Disconnect from the frontend in case this has not already happened */
|
||||
xen_console_disconnect(xendev, NULL);
|
||||
|
||||
qemu_chr_fe_deinit(&con->chr, false);
|
||||
}
|
||||
|
||||
static void xen_console_realize(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
ERRP_GUARD();
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(xendev);
|
||||
Chardev *cs = qemu_chr_fe_get_driver(&con->chr);
|
||||
unsigned int u;
|
||||
|
||||
if (!cs) {
|
||||
error_setg(errp, "no backing character device");
|
||||
return;
|
||||
}
|
||||
|
||||
if (con->dev == -1) {
|
||||
error_setg(errp, "no device index provided");
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
* The Xen primary console is special. The ring-ref is actually a GFN to
|
||||
* be mapped directly as foreignmem (not a grant ref), and the guest port
|
||||
* was allocated *for* the guest by the toolstack. The guest gets these
|
||||
* through HVMOP_get_param and can use the console long before it's got
|
||||
* XenStore up and running. We cannot create those for a true Xen guest,
|
||||
* but we can for Xen emulation.
|
||||
*/
|
||||
if (!con->dev) {
|
||||
if (xen_mode == XEN_EMULATE) {
|
||||
xen_primary_console_create();
|
||||
} else if (xen_device_frontend_scanf(xendev, "ring-ref", "%u", &u)
|
||||
!= 1 ||
|
||||
xen_device_frontend_scanf(xendev, "port", "%u", &u) != 1) {
|
||||
error_setg(errp, "cannot create primary Xen console");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
trace_xen_console_realize(con->dev, object_get_typename(OBJECT(cs)));
|
||||
|
||||
if (CHARDEV_IS_PTY(cs)) {
|
||||
/* Strip the leading 'pty:' */
|
||||
xen_device_frontend_printf(xendev, "tty", "%s", cs->filename + 4);
|
||||
}
|
||||
|
||||
/* No normal PV driver initialization for the primary console under Xen */
|
||||
if (!con->dev && xen_mode != XEN_EMULATE) {
|
||||
xen_console_connect(xendev, errp);
|
||||
}
|
||||
}
|
||||
|
||||
static char *console_frontend_path(struct qemu_xs_handle *xenstore,
|
||||
unsigned int dom_id, unsigned int dev)
|
||||
{
|
||||
if (!dev) {
|
||||
return g_strdup_printf("/local/domain/%u/console", dom_id);
|
||||
} else {
|
||||
return g_strdup_printf("/local/domain/%u/device/console/%u", dom_id,
|
||||
dev);
|
||||
}
|
||||
}
|
||||
|
||||
static char *xen_console_get_frontend_path(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(xendev);
|
||||
XenBus *xenbus = XEN_BUS(qdev_get_parent_bus(DEVICE(xendev)));
|
||||
char *ret = console_frontend_path(xenbus->xsh, xendev->frontend_id,
|
||||
con->dev);
|
||||
|
||||
if (!ret) {
|
||||
error_setg(errp, "failed to create frontend path");
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
static Property xen_console_properties[] = {
|
||||
DEFINE_PROP_CHR("chardev", XenConsole, chr),
|
||||
DEFINE_PROP_INT32("idx", XenConsole, dev, -1),
|
||||
DEFINE_PROP_END_OF_LIST(),
|
||||
};
|
||||
|
||||
static void xen_console_class_init(ObjectClass *class, void *data)
|
||||
{
|
||||
DeviceClass *dev_class = DEVICE_CLASS(class);
|
||||
XenDeviceClass *xendev_class = XEN_DEVICE_CLASS(class);
|
||||
|
||||
xendev_class->backend = "console";
|
||||
xendev_class->device = "console";
|
||||
xendev_class->get_name = xen_console_get_name;
|
||||
xendev_class->realize = xen_console_realize;
|
||||
xendev_class->frontend_changed = xen_console_frontend_changed;
|
||||
xendev_class->unrealize = xen_console_unrealize;
|
||||
xendev_class->get_frontend_path = xen_console_get_frontend_path;
|
||||
|
||||
device_class_set_props(dev_class, xen_console_properties);
|
||||
}
|
||||
|
||||
static const TypeInfo xen_console_type_info = {
|
||||
.name = TYPE_XEN_CONSOLE_DEVICE,
|
||||
.parent = TYPE_XEN_DEVICE,
|
||||
.instance_size = sizeof(XenConsole),
|
||||
.class_init = xen_console_class_init,
|
||||
};
|
||||
|
||||
static void xen_console_register_types(void)
|
||||
{
|
||||
type_register_static(&xen_console_type_info);
|
||||
}
|
||||
|
||||
type_init(xen_console_register_types)
|
||||
|
||||
/* Called to instantiate a XenConsole when the backend is detected. */
|
||||
static void xen_console_device_create(XenBackendInstance *backend,
|
||||
QDict *opts, Error **errp)
|
||||
{
|
||||
ERRP_GUARD();
|
||||
XenBus *xenbus = xen_backend_get_bus(backend);
|
||||
const char *name = xen_backend_get_name(backend);
|
||||
unsigned long number;
|
||||
char *fe = NULL, *type = NULL, *output = NULL;
|
||||
char label[32];
|
||||
XenDevice *xendev = NULL;
|
||||
XenConsole *con;
|
||||
Chardev *cd = NULL;
|
||||
struct qemu_xs_handle *xsh = xenbus->xsh;
|
||||
|
||||
if (qemu_strtoul(name, NULL, 10, &number) || number > INT_MAX) {
|
||||
error_setg(errp, "failed to parse name '%s'", name);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
trace_xen_console_device_create(number);
|
||||
|
||||
fe = console_frontend_path(xsh, xen_domid, number);
|
||||
if (fe == NULL) {
|
||||
error_setg(errp, "failed to generate frontend path");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (xs_node_scanf(xsh, XBT_NULL, fe, "type", errp, "%ms", &type) != 1) {
|
||||
error_prepend(errp, "failed to read console device type: ");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (strcmp(type, "ioemu")) {
|
||||
error_setg(errp, "declining to handle console type '%s'",
|
||||
type);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
xendev = XEN_DEVICE(qdev_new(TYPE_XEN_CONSOLE_DEVICE));
|
||||
con = XEN_CONSOLE_DEVICE(xendev);
|
||||
|
||||
con->dev = number;
|
||||
|
||||
snprintf(label, sizeof(label), "xencons%ld", number);
|
||||
|
||||
if (xs_node_scanf(xsh, XBT_NULL, fe, "output", NULL, "%ms", &output) == 1) {
|
||||
/*
|
||||
* FIXME: sure we want to support implicit
|
||||
* muxed monitors here?
|
||||
*/
|
||||
cd = qemu_chr_new_mux_mon(label, output, NULL);
|
||||
if (!cd) {
|
||||
error_setg(errp, "console: No valid chardev found at '%s': ",
|
||||
output);
|
||||
goto fail;
|
||||
}
|
||||
} else if (number) {
|
||||
cd = serial_hd(number);
|
||||
if (!cd) {
|
||||
error_prepend(errp, "console: No serial device #%ld found: ",
|
||||
number);
|
||||
goto fail;
|
||||
}
|
||||
} else {
|
||||
/* No 'output' node on primary console: use null. */
|
||||
cd = qemu_chr_new(label, "null", NULL);
|
||||
if (!cd) {
|
||||
error_setg(errp, "console: failed to create null device");
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
|
||||
if (!qemu_chr_fe_init(&con->chr, cd, errp)) {
|
||||
error_prepend(errp, "console: failed to initialize backing chardev: ");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (qdev_realize_and_unref(DEVICE(xendev), BUS(xenbus), errp)) {
|
||||
xen_backend_set_device(backend, xendev);
|
||||
goto done;
|
||||
}
|
||||
|
||||
error_prepend(errp, "realization of console device %lu failed: ",
|
||||
number);
|
||||
|
||||
fail:
|
||||
if (xendev) {
|
||||
object_unparent(OBJECT(xendev));
|
||||
}
|
||||
done:
|
||||
g_free(fe);
|
||||
free(type);
|
||||
free(output);
|
||||
}
|
||||
|
||||
static void xen_console_device_destroy(XenBackendInstance *backend,
|
||||
Error **errp)
|
||||
{
|
||||
ERRP_GUARD();
|
||||
XenDevice *xendev = xen_backend_get_device(backend);
|
||||
XenConsole *con = XEN_CONSOLE_DEVICE(xendev);
|
||||
|
||||
trace_xen_console_device_destroy(con->dev);
|
||||
|
||||
object_unparent(OBJECT(xendev));
|
||||
}
|
||||
|
||||
static const XenBackendInfo xen_console_backend_info = {
|
||||
.type = "console",
|
||||
.create = xen_console_device_create,
|
||||
.destroy = xen_console_device_destroy,
|
||||
};
|
||||
|
||||
static void xen_console_register_backend(void)
|
||||
{
|
||||
xen_backend_register(&xen_console_backend_info);
|
||||
}
|
||||
|
||||
xen_backend_init(xen_console_register_backend);
|
||||
|
||||
@ -9,6 +9,7 @@ i386_kvm_ss.add(when: 'CONFIG_XEN_EMU', if_true: files(
|
||||
'xen_evtchn.c',
|
||||
'xen_gnttab.c',
|
||||
'xen_xenstore.c',
|
||||
'xen_primary_console.c',
|
||||
'xenstore_impl.c',
|
||||
))
|
||||
|
||||
|
||||
@ -18,3 +18,5 @@ xenstore_watch(const char *path, const char *token) "path %s token %s"
|
||||
xenstore_unwatch(const char *path, const char *token) "path %s token %s"
|
||||
xenstore_reset_watches(void) ""
|
||||
xenstore_watch_event(const char *path, const char *token) "path %s token %s"
|
||||
xen_primary_console_create(void) ""
|
||||
xen_primary_console_reset(int port) "port %u"
|
||||
|
||||
@ -15,6 +15,7 @@
|
||||
#include "qapi/qapi-commands-misc-target.h"
|
||||
|
||||
#include "xen_evtchn.h"
|
||||
#include "xen_primary_console.h"
|
||||
|
||||
void xen_evtchn_snoop_msi(PCIDevice *dev, bool is_msix, unsigned int vector,
|
||||
uint64_t addr, uint32_t data, bool is_masked)
|
||||
@ -30,6 +31,13 @@ bool xen_evtchn_deliver_pirq_msi(uint64_t address, uint32_t data)
|
||||
return false;
|
||||
}
|
||||
|
||||
void xen_primary_console_create(void)
|
||||
{
|
||||
}
|
||||
|
||||
void xen_primary_console_set_be_port(uint16_t port)
|
||||
{
|
||||
}
|
||||
#ifdef TARGET_I386
|
||||
EvtchnInfoList *qmp_xen_event_list(Error **errp)
|
||||
{
|
||||
|
||||
@ -58,7 +58,15 @@ OBJECT_DECLARE_SIMPLE_TYPE(XenEvtchnState, XEN_EVTCHN)
|
||||
typedef struct XenEvtchnPort {
|
||||
uint32_t vcpu; /* Xen/ACPI vcpu_id */
|
||||
uint16_t type; /* EVTCHNSTAT_xxxx */
|
||||
uint16_t type_val; /* pirq# / virq# / remote port according to type */
|
||||
union {
|
||||
uint16_t val; /* raw value for serialization etc. */
|
||||
uint16_t pirq;
|
||||
uint16_t virq;
|
||||
struct {
|
||||
uint16_t port:15;
|
||||
uint16_t to_qemu:1; /* Only two targets; qemu or loopback */
|
||||
} interdomain;
|
||||
} u;
|
||||
} XenEvtchnPort;
|
||||
|
||||
/* 32-bit compatibility definitions, also used natively in 32-bit build */
|
||||
@ -105,14 +113,6 @@ struct xenevtchn_handle {
|
||||
int fd;
|
||||
};
|
||||
|
||||
/*
|
||||
* For unbound/interdomain ports there are only two possible remote
|
||||
* domains; self and QEMU. Use a single high bit in type_val for that,
|
||||
* and the low bits for the remote port number (or 0 for unbound).
|
||||
*/
|
||||
#define PORT_INFO_TYPEVAL_REMOTE_QEMU 0x8000
|
||||
#define PORT_INFO_TYPEVAL_REMOTE_PORT_MASK 0x7FFF
|
||||
|
||||
/*
|
||||
* These 'emuirq' values are used by Xen in the LM stream... and yes, I am
|
||||
* insane enough to think about guest-transparent live migration from actual
|
||||
@ -210,16 +210,16 @@ static int xen_evtchn_post_load(void *opaque, int version_id)
|
||||
XenEvtchnPort *p = &s->port_table[i];
|
||||
|
||||
if (p->type == EVTCHNSTAT_pirq) {
|
||||
assert(p->type_val);
|
||||
assert(p->type_val < s->nr_pirqs);
|
||||
assert(p->u.pirq);
|
||||
assert(p->u.pirq < s->nr_pirqs);
|
||||
|
||||
/*
|
||||
* Set the gsi to IRQ_UNBOUND; it may be changed to an actual
|
||||
* GSI# below, or to IRQ_MSI_EMU when the MSI table snooping
|
||||
* catches up with it.
|
||||
*/
|
||||
s->pirq[p->type_val].gsi = IRQ_UNBOUND;
|
||||
s->pirq[p->type_val].port = i;
|
||||
s->pirq[p->u.pirq].gsi = IRQ_UNBOUND;
|
||||
s->pirq[p->u.pirq].port = i;
|
||||
}
|
||||
}
|
||||
/* Rebuild s->pirq[].gsi mapping */
|
||||
@ -243,7 +243,7 @@ static const VMStateDescription xen_evtchn_port_vmstate = {
|
||||
.fields = (VMStateField[]) {
|
||||
VMSTATE_UINT32(vcpu, XenEvtchnPort),
|
||||
VMSTATE_UINT16(type, XenEvtchnPort),
|
||||
VMSTATE_UINT16(type_val, XenEvtchnPort),
|
||||
VMSTATE_UINT16(u.val, XenEvtchnPort),
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
@ -605,14 +605,13 @@ static void unbind_backend_ports(XenEvtchnState *s)
|
||||
|
||||
for (i = 1; i < s->nr_ports; i++) {
|
||||
p = &s->port_table[i];
|
||||
if (p->type == EVTCHNSTAT_interdomain &&
|
||||
(p->type_val & PORT_INFO_TYPEVAL_REMOTE_QEMU)) {
|
||||
evtchn_port_t be_port = p->type_val & PORT_INFO_TYPEVAL_REMOTE_PORT_MASK;
|
||||
if (p->type == EVTCHNSTAT_interdomain && p->u.interdomain.to_qemu) {
|
||||
evtchn_port_t be_port = p->u.interdomain.port;
|
||||
|
||||
if (s->be_handles[be_port]) {
|
||||
/* This part will be overwritten on the load anyway. */
|
||||
p->type = EVTCHNSTAT_unbound;
|
||||
p->type_val = PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
p->u.interdomain.port = 0;
|
||||
|
||||
/* Leave the backend port open and unbound too. */
|
||||
if (kvm_xen_has_cap(EVTCHN_SEND)) {
|
||||
@ -650,30 +649,22 @@ int xen_evtchn_status_op(struct evtchn_status *status)
|
||||
|
||||
switch (p->type) {
|
||||
case EVTCHNSTAT_unbound:
|
||||
if (p->type_val & PORT_INFO_TYPEVAL_REMOTE_QEMU) {
|
||||
status->u.unbound.dom = DOMID_QEMU;
|
||||
} else {
|
||||
status->u.unbound.dom = xen_domid;
|
||||
}
|
||||
status->u.unbound.dom = p->u.interdomain.to_qemu ? DOMID_QEMU
|
||||
: xen_domid;
|
||||
break;
|
||||
|
||||
case EVTCHNSTAT_interdomain:
|
||||
if (p->type_val & PORT_INFO_TYPEVAL_REMOTE_QEMU) {
|
||||
status->u.interdomain.dom = DOMID_QEMU;
|
||||
} else {
|
||||
status->u.interdomain.dom = xen_domid;
|
||||
}
|
||||
|
||||
status->u.interdomain.port = p->type_val &
|
||||
PORT_INFO_TYPEVAL_REMOTE_PORT_MASK;
|
||||
status->u.interdomain.dom = p->u.interdomain.to_qemu ? DOMID_QEMU
|
||||
: xen_domid;
|
||||
status->u.interdomain.port = p->u.interdomain.port;
|
||||
break;
|
||||
|
||||
case EVTCHNSTAT_pirq:
|
||||
status->u.pirq = p->type_val;
|
||||
status->u.pirq = p->u.pirq;
|
||||
break;
|
||||
|
||||
case EVTCHNSTAT_virq:
|
||||
status->u.virq = p->type_val;
|
||||
status->u.virq = p->u.virq;
|
||||
break;
|
||||
}
|
||||
|
||||
@ -989,7 +980,7 @@ static int clear_port_pending(XenEvtchnState *s, evtchn_port_t port)
|
||||
static void free_port(XenEvtchnState *s, evtchn_port_t port)
|
||||
{
|
||||
s->port_table[port].type = EVTCHNSTAT_closed;
|
||||
s->port_table[port].type_val = 0;
|
||||
s->port_table[port].u.val = 0;
|
||||
s->port_table[port].vcpu = 0;
|
||||
|
||||
if (s->nr_ports == port + 1) {
|
||||
@ -1012,7 +1003,7 @@ static int allocate_port(XenEvtchnState *s, uint32_t vcpu, uint16_t type,
|
||||
if (s->port_table[p].type == EVTCHNSTAT_closed) {
|
||||
s->port_table[p].vcpu = vcpu;
|
||||
s->port_table[p].type = type;
|
||||
s->port_table[p].type_val = val;
|
||||
s->port_table[p].u.val = val;
|
||||
|
||||
*port = p;
|
||||
|
||||
@ -1053,15 +1044,15 @@ static int close_port(XenEvtchnState *s, evtchn_port_t port,
|
||||
return -ENOENT;
|
||||
|
||||
case EVTCHNSTAT_pirq:
|
||||
s->pirq[p->type_val].port = 0;
|
||||
if (s->pirq[p->type_val].is_translated) {
|
||||
s->pirq[p->u.pirq].port = 0;
|
||||
if (s->pirq[p->u.pirq].is_translated) {
|
||||
*flush_kvm_routes = true;
|
||||
}
|
||||
break;
|
||||
|
||||
case EVTCHNSTAT_virq:
|
||||
kvm_xen_set_vcpu_virq(virq_is_global(p->type_val) ? 0 : p->vcpu,
|
||||
p->type_val, 0);
|
||||
kvm_xen_set_vcpu_virq(virq_is_global(p->u.virq) ? 0 : p->vcpu,
|
||||
p->u.virq, 0);
|
||||
break;
|
||||
|
||||
case EVTCHNSTAT_ipi:
|
||||
@ -1071,8 +1062,8 @@ static int close_port(XenEvtchnState *s, evtchn_port_t port,
|
||||
break;
|
||||
|
||||
case EVTCHNSTAT_interdomain:
|
||||
if (p->type_val & PORT_INFO_TYPEVAL_REMOTE_QEMU) {
|
||||
uint16_t be_port = p->type_val & ~PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
if (p->u.interdomain.to_qemu) {
|
||||
uint16_t be_port = p->u.interdomain.port;
|
||||
struct xenevtchn_handle *xc = s->be_handles[be_port];
|
||||
if (xc) {
|
||||
if (kvm_xen_has_cap(EVTCHN_SEND)) {
|
||||
@ -1082,14 +1073,15 @@ static int close_port(XenEvtchnState *s, evtchn_port_t port,
|
||||
}
|
||||
} else {
|
||||
/* Loopback interdomain */
|
||||
XenEvtchnPort *rp = &s->port_table[p->type_val];
|
||||
if (!valid_port(p->type_val) || rp->type_val != port ||
|
||||
XenEvtchnPort *rp = &s->port_table[p->u.interdomain.port];
|
||||
if (!valid_port(p->u.interdomain.port) ||
|
||||
rp->u.interdomain.port != port ||
|
||||
rp->type != EVTCHNSTAT_interdomain) {
|
||||
error_report("Inconsistent state for interdomain unbind");
|
||||
} else {
|
||||
/* Set the other end back to unbound */
|
||||
rp->type = EVTCHNSTAT_unbound;
|
||||
rp->type_val = 0;
|
||||
rp->u.interdomain.port = 0;
|
||||
}
|
||||
}
|
||||
break;
|
||||
@ -1214,7 +1206,7 @@ int xen_evtchn_bind_vcpu_op(struct evtchn_bind_vcpu *vcpu)
|
||||
if (p->type == EVTCHNSTAT_interdomain ||
|
||||
p->type == EVTCHNSTAT_unbound ||
|
||||
p->type == EVTCHNSTAT_pirq ||
|
||||
(p->type == EVTCHNSTAT_virq && virq_is_global(p->type_val))) {
|
||||
(p->type == EVTCHNSTAT_virq && virq_is_global(p->u.virq))) {
|
||||
/*
|
||||
* unmask_port() with do_unmask==false will just raise the event
|
||||
* on the new vCPU if the port was already pending.
|
||||
@ -1359,19 +1351,15 @@ int xen_evtchn_bind_ipi_op(struct evtchn_bind_ipi *ipi)
|
||||
int xen_evtchn_bind_interdomain_op(struct evtchn_bind_interdomain *interdomain)
|
||||
{
|
||||
XenEvtchnState *s = xen_evtchn_singleton;
|
||||
uint16_t type_val;
|
||||
int ret;
|
||||
|
||||
if (!s) {
|
||||
return -ENOTSUP;
|
||||
}
|
||||
|
||||
if (interdomain->remote_dom == DOMID_QEMU) {
|
||||
type_val = PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
} else if (interdomain->remote_dom == DOMID_SELF ||
|
||||
interdomain->remote_dom == xen_domid) {
|
||||
type_val = 0;
|
||||
} else {
|
||||
if (interdomain->remote_dom != DOMID_QEMU &&
|
||||
interdomain->remote_dom != DOMID_SELF &&
|
||||
interdomain->remote_dom != xen_domid) {
|
||||
return -ESRCH;
|
||||
}
|
||||
|
||||
@ -1382,8 +1370,8 @@ int xen_evtchn_bind_interdomain_op(struct evtchn_bind_interdomain *interdomain)
|
||||
qemu_mutex_lock(&s->port_lock);
|
||||
|
||||
/* The newly allocated port starts out as unbound */
|
||||
ret = allocate_port(s, 0, EVTCHNSTAT_unbound, type_val,
|
||||
&interdomain->local_port);
|
||||
ret = allocate_port(s, 0, EVTCHNSTAT_unbound, 0, &interdomain->local_port);
|
||||
|
||||
if (ret) {
|
||||
goto out;
|
||||
}
|
||||
@ -1408,7 +1396,8 @@ int xen_evtchn_bind_interdomain_op(struct evtchn_bind_interdomain *interdomain)
|
||||
assign_kernel_eventfd(lp->type, xc->guest_port, xc->fd);
|
||||
}
|
||||
lp->type = EVTCHNSTAT_interdomain;
|
||||
lp->type_val = PORT_INFO_TYPEVAL_REMOTE_QEMU | interdomain->remote_port;
|
||||
lp->u.interdomain.to_qemu = 1;
|
||||
lp->u.interdomain.port = interdomain->remote_port;
|
||||
ret = 0;
|
||||
} else {
|
||||
/* Loopback */
|
||||
@ -1416,19 +1405,18 @@ int xen_evtchn_bind_interdomain_op(struct evtchn_bind_interdomain *interdomain)
|
||||
XenEvtchnPort *lp = &s->port_table[interdomain->local_port];
|
||||
|
||||
/*
|
||||
* The 'remote' port for loopback must be an unbound port allocated for
|
||||
* communication with the local domain (as indicated by rp->type_val
|
||||
* being zero, not PORT_INFO_TYPEVAL_REMOTE_QEMU), and must *not* be
|
||||
* the port that was just allocated for the local end.
|
||||
* The 'remote' port for loopback must be an unbound port allocated
|
||||
* for communication with the local domain, and must *not* be the
|
||||
* port that was just allocated for the local end.
|
||||
*/
|
||||
if (interdomain->local_port != interdomain->remote_port &&
|
||||
rp->type == EVTCHNSTAT_unbound && rp->type_val == 0) {
|
||||
rp->type == EVTCHNSTAT_unbound && !rp->u.interdomain.to_qemu) {
|
||||
|
||||
rp->type = EVTCHNSTAT_interdomain;
|
||||
rp->type_val = interdomain->local_port;
|
||||
rp->u.interdomain.port = interdomain->local_port;
|
||||
|
||||
lp->type = EVTCHNSTAT_interdomain;
|
||||
lp->type_val = interdomain->remote_port;
|
||||
lp->u.interdomain.port = interdomain->remote_port;
|
||||
} else {
|
||||
ret = -EINVAL;
|
||||
}
|
||||
@ -1447,7 +1435,6 @@ int xen_evtchn_bind_interdomain_op(struct evtchn_bind_interdomain *interdomain)
|
||||
int xen_evtchn_alloc_unbound_op(struct evtchn_alloc_unbound *alloc)
|
||||
{
|
||||
XenEvtchnState *s = xen_evtchn_singleton;
|
||||
uint16_t type_val;
|
||||
int ret;
|
||||
|
||||
if (!s) {
|
||||
@ -1458,18 +1445,20 @@ int xen_evtchn_alloc_unbound_op(struct evtchn_alloc_unbound *alloc)
|
||||
return -ESRCH;
|
||||
}
|
||||
|
||||
if (alloc->remote_dom == DOMID_QEMU) {
|
||||
type_val = PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
} else if (alloc->remote_dom == DOMID_SELF ||
|
||||
alloc->remote_dom == xen_domid) {
|
||||
type_val = 0;
|
||||
} else {
|
||||
if (alloc->remote_dom != DOMID_QEMU &&
|
||||
alloc->remote_dom != DOMID_SELF &&
|
||||
alloc->remote_dom != xen_domid) {
|
||||
return -EPERM;
|
||||
}
|
||||
|
||||
qemu_mutex_lock(&s->port_lock);
|
||||
|
||||
ret = allocate_port(s, 0, EVTCHNSTAT_unbound, type_val, &alloc->port);
|
||||
ret = allocate_port(s, 0, EVTCHNSTAT_unbound, 0, &alloc->port);
|
||||
|
||||
if (!ret && alloc->remote_dom == DOMID_QEMU) {
|
||||
XenEvtchnPort *p = &s->port_table[alloc->port];
|
||||
p->u.interdomain.to_qemu = 1;
|
||||
}
|
||||
|
||||
qemu_mutex_unlock(&s->port_lock);
|
||||
|
||||
@ -1496,12 +1485,12 @@ int xen_evtchn_send_op(struct evtchn_send *send)
|
||||
|
||||
switch (p->type) {
|
||||
case EVTCHNSTAT_interdomain:
|
||||
if (p->type_val & PORT_INFO_TYPEVAL_REMOTE_QEMU) {
|
||||
if (p->u.interdomain.to_qemu) {
|
||||
/*
|
||||
* This is an event from the guest to qemu itself, which is
|
||||
* serving as the driver domain.
|
||||
*/
|
||||
uint16_t be_port = p->type_val & ~PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
uint16_t be_port = p->u.interdomain.port;
|
||||
struct xenevtchn_handle *xc = s->be_handles[be_port];
|
||||
if (xc) {
|
||||
eventfd_write(xc->fd, 1);
|
||||
@ -1511,7 +1500,7 @@ int xen_evtchn_send_op(struct evtchn_send *send)
|
||||
}
|
||||
} else {
|
||||
/* Loopback interdomain ports; just a complex IPI */
|
||||
set_port_pending(s, p->type_val);
|
||||
set_port_pending(s, p->u.interdomain.port);
|
||||
}
|
||||
break;
|
||||
|
||||
@ -1553,8 +1542,7 @@ int xen_evtchn_set_port(uint16_t port)
|
||||
|
||||
/* QEMU has no business sending to anything but these */
|
||||
if (p->type == EVTCHNSTAT_virq ||
|
||||
(p->type == EVTCHNSTAT_interdomain &&
|
||||
(p->type_val & PORT_INFO_TYPEVAL_REMOTE_QEMU))) {
|
||||
(p->type == EVTCHNSTAT_interdomain && p->u.interdomain.to_qemu)) {
|
||||
set_port_pending(s, port);
|
||||
ret = 0;
|
||||
}
|
||||
@ -2064,7 +2052,7 @@ int xen_be_evtchn_bind_interdomain(struct xenevtchn_handle *xc, uint32_t domid,
|
||||
switch (gp->type) {
|
||||
case EVTCHNSTAT_interdomain:
|
||||
/* Allow rebinding after migration, preserve port # if possible */
|
||||
be_port = gp->type_val & ~PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
be_port = gp->u.interdomain.port;
|
||||
assert(be_port != 0);
|
||||
if (!s->be_handles[be_port]) {
|
||||
s->be_handles[be_port] = xc;
|
||||
@ -2085,7 +2073,8 @@ int xen_be_evtchn_bind_interdomain(struct xenevtchn_handle *xc, uint32_t domid,
|
||||
}
|
||||
|
||||
gp->type = EVTCHNSTAT_interdomain;
|
||||
gp->type_val = be_port | PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
gp->u.interdomain.to_qemu = 1;
|
||||
gp->u.interdomain.port = be_port;
|
||||
xc->guest_port = guest_port;
|
||||
if (kvm_xen_has_cap(EVTCHN_SEND)) {
|
||||
assign_kernel_eventfd(gp->type, guest_port, xc->fd);
|
||||
@ -2130,7 +2119,7 @@ int xen_be_evtchn_unbind(struct xenevtchn_handle *xc, evtchn_port_t port)
|
||||
/* This should never *not* be true */
|
||||
if (gp->type == EVTCHNSTAT_interdomain) {
|
||||
gp->type = EVTCHNSTAT_unbound;
|
||||
gp->type_val = PORT_INFO_TYPEVAL_REMOTE_QEMU;
|
||||
gp->u.interdomain.port = 0;
|
||||
}
|
||||
|
||||
if (kvm_xen_has_cap(EVTCHN_SEND)) {
|
||||
@ -2284,11 +2273,11 @@ EvtchnInfoList *qmp_xen_event_list(Error **errp)
|
||||
|
||||
info->type = p->type;
|
||||
if (p->type == EVTCHNSTAT_interdomain) {
|
||||
info->remote_domain = g_strdup((p->type_val & PORT_INFO_TYPEVAL_REMOTE_QEMU) ?
|
||||
info->remote_domain = g_strdup(p->u.interdomain.to_qemu ?
|
||||
"qemu" : "loopback");
|
||||
info->target = p->type_val & PORT_INFO_TYPEVAL_REMOTE_PORT_MASK;
|
||||
info->target = p->u.interdomain.port;
|
||||
} else {
|
||||
info->target = p->type_val;
|
||||
info->target = p->u.val; /* pirq# or virq# */
|
||||
}
|
||||
info->vcpu = p->vcpu;
|
||||
info->pending = test_bit(i, pending);
|
||||
|
||||
@ -25,6 +25,7 @@
|
||||
#include "hw/xen/xen_backend_ops.h"
|
||||
#include "xen_overlay.h"
|
||||
#include "xen_gnttab.h"
|
||||
#include "xen_primary_console.h"
|
||||
|
||||
#include "sysemu/kvm.h"
|
||||
#include "sysemu/kvm_xen.h"
|
||||
@ -537,9 +538,13 @@ int xen_gnttab_reset(void)
|
||||
s->nr_frames = 0;
|
||||
|
||||
memset(s->entries.v1, 0, XEN_PAGE_SIZE * s->max_frames);
|
||||
|
||||
s->entries.v1[GNTTAB_RESERVED_XENSTORE].flags = GTF_permit_access;
|
||||
s->entries.v1[GNTTAB_RESERVED_XENSTORE].frame = XEN_SPECIAL_PFN(XENSTORE);
|
||||
|
||||
if (xen_primary_console_get_pfn()) {
|
||||
s->entries.v1[GNTTAB_RESERVED_CONSOLE].flags = GTF_permit_access;
|
||||
s->entries.v1[GNTTAB_RESERVED_CONSOLE].frame = XEN_SPECIAL_PFN(CONSOLE);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
193
hw/i386/kvm/xen_primary_console.c
Normal file
193
hw/i386/kvm/xen_primary_console.c
Normal file
@ -0,0 +1,193 @@
|
||||
/*
|
||||
* QEMU Xen emulation: Primary console support
|
||||
*
|
||||
* Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* Authors: David Woodhouse <dwmw2@infradead.org>
|
||||
*
|
||||
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
||||
* See the COPYING file in the top-level directory.
|
||||
*/
|
||||
|
||||
#include "qemu/osdep.h"
|
||||
|
||||
#include "qapi/error.h"
|
||||
|
||||
#include "hw/sysbus.h"
|
||||
#include "hw/xen/xen.h"
|
||||
#include "hw/xen/xen_backend_ops.h"
|
||||
#include "xen_evtchn.h"
|
||||
#include "xen_overlay.h"
|
||||
#include "xen_primary_console.h"
|
||||
|
||||
#include "sysemu/kvm.h"
|
||||
#include "sysemu/kvm_xen.h"
|
||||
|
||||
#include "trace.h"
|
||||
|
||||
#include "hw/xen/interface/event_channel.h"
|
||||
#include "hw/xen/interface/grant_table.h"
|
||||
|
||||
#define TYPE_XEN_PRIMARY_CONSOLE "xen-primary-console"
|
||||
OBJECT_DECLARE_SIMPLE_TYPE(XenPrimaryConsoleState, XEN_PRIMARY_CONSOLE)
|
||||
|
||||
struct XenPrimaryConsoleState {
|
||||
/*< private >*/
|
||||
SysBusDevice busdev;
|
||||
/*< public >*/
|
||||
|
||||
MemoryRegion console_page;
|
||||
void *cp;
|
||||
|
||||
evtchn_port_t guest_port;
|
||||
evtchn_port_t be_port;
|
||||
|
||||
struct xengntdev_handle *gt;
|
||||
void *granted_xs;
|
||||
};
|
||||
|
||||
struct XenPrimaryConsoleState *xen_primary_console_singleton;
|
||||
|
||||
static void xen_primary_console_realize(DeviceState *dev, Error **errp)
|
||||
{
|
||||
XenPrimaryConsoleState *s = XEN_PRIMARY_CONSOLE(dev);
|
||||
|
||||
if (xen_mode != XEN_EMULATE) {
|
||||
error_setg(errp, "Xen primary console support is for Xen emulation");
|
||||
return;
|
||||
}
|
||||
|
||||
memory_region_init_ram(&s->console_page, OBJECT(dev), "xen:console_page",
|
||||
XEN_PAGE_SIZE, &error_abort);
|
||||
memory_region_set_enabled(&s->console_page, true);
|
||||
s->cp = memory_region_get_ram_ptr(&s->console_page);
|
||||
memset(s->cp, 0, XEN_PAGE_SIZE);
|
||||
|
||||
/* We can't map it this early as KVM isn't ready */
|
||||
xen_primary_console_singleton = s;
|
||||
}
|
||||
|
||||
static void xen_primary_console_class_init(ObjectClass *klass, void *data)
|
||||
{
|
||||
DeviceClass *dc = DEVICE_CLASS(klass);
|
||||
|
||||
dc->realize = xen_primary_console_realize;
|
||||
}
|
||||
|
||||
static const TypeInfo xen_primary_console_info = {
|
||||
.name = TYPE_XEN_PRIMARY_CONSOLE,
|
||||
.parent = TYPE_SYS_BUS_DEVICE,
|
||||
.instance_size = sizeof(XenPrimaryConsoleState),
|
||||
.class_init = xen_primary_console_class_init,
|
||||
};
|
||||
|
||||
|
||||
void xen_primary_console_create(void)
|
||||
{
|
||||
DeviceState *dev = sysbus_create_simple(TYPE_XEN_PRIMARY_CONSOLE, -1, NULL);
|
||||
|
||||
trace_xen_primary_console_create();
|
||||
|
||||
xen_primary_console_singleton = XEN_PRIMARY_CONSOLE(dev);
|
||||
|
||||
/*
|
||||
* Defer the init (xen_primary_console_reset()) until KVM is set up and the
|
||||
* overlay page can be mapped.
|
||||
*/
|
||||
}
|
||||
|
||||
static void xen_primary_console_register_types(void)
|
||||
{
|
||||
type_register_static(&xen_primary_console_info);
|
||||
}
|
||||
|
||||
type_init(xen_primary_console_register_types)
|
||||
|
||||
uint16_t xen_primary_console_get_port(void)
|
||||
{
|
||||
XenPrimaryConsoleState *s = xen_primary_console_singleton;
|
||||
if (!s) {
|
||||
return 0;
|
||||
}
|
||||
return s->guest_port;
|
||||
}
|
||||
|
||||
void xen_primary_console_set_be_port(uint16_t port)
|
||||
{
|
||||
XenPrimaryConsoleState *s = xen_primary_console_singleton;
|
||||
if (s) {
|
||||
s->be_port = port;
|
||||
}
|
||||
}
|
||||
|
||||
uint64_t xen_primary_console_get_pfn(void)
|
||||
{
|
||||
XenPrimaryConsoleState *s = xen_primary_console_singleton;
|
||||
if (!s) {
|
||||
return 0;
|
||||
}
|
||||
return XEN_SPECIAL_PFN(CONSOLE);
|
||||
}
|
||||
|
||||
void *xen_primary_console_get_map(void)
|
||||
{
|
||||
XenPrimaryConsoleState *s = xen_primary_console_singleton;
|
||||
if (!s) {
|
||||
return 0;
|
||||
}
|
||||
return s->cp;
|
||||
}
|
||||
|
||||
static void alloc_guest_port(XenPrimaryConsoleState *s)
|
||||
{
|
||||
struct evtchn_alloc_unbound alloc = {
|
||||
.dom = DOMID_SELF,
|
||||
.remote_dom = DOMID_QEMU,
|
||||
};
|
||||
|
||||
if (!xen_evtchn_alloc_unbound_op(&alloc)) {
|
||||
s->guest_port = alloc.port;
|
||||
}
|
||||
}
|
||||
|
||||
static void rebind_guest_port(XenPrimaryConsoleState *s)
|
||||
{
|
||||
struct evtchn_bind_interdomain inter = {
|
||||
.remote_dom = DOMID_QEMU,
|
||||
.remote_port = s->be_port,
|
||||
};
|
||||
|
||||
if (!xen_evtchn_bind_interdomain_op(&inter)) {
|
||||
s->guest_port = inter.local_port;
|
||||
}
|
||||
|
||||
s->be_port = 0;
|
||||
}
|
||||
|
||||
int xen_primary_console_reset(void)
|
||||
{
|
||||
XenPrimaryConsoleState *s = xen_primary_console_singleton;
|
||||
if (!s) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!memory_region_is_mapped(&s->console_page)) {
|
||||
uint64_t gpa = XEN_SPECIAL_PFN(CONSOLE) << TARGET_PAGE_BITS;
|
||||
xen_overlay_do_map_page(&s->console_page, gpa);
|
||||
}
|
||||
|
||||
if (s->be_port) {
|
||||
rebind_guest_port(s);
|
||||
} else {
|
||||
alloc_guest_port(s);
|
||||
}
|
||||
|
||||
trace_xen_primary_console_reset(s->guest_port);
|
||||
|
||||
s->gt = qemu_xen_gnttab_open();
|
||||
uint32_t xs_gntref = GNTTAB_RESERVED_CONSOLE;
|
||||
s->granted_xs = qemu_xen_gnttab_map_refs(s->gt, 1, xen_domid, &xs_gntref,
|
||||
PROT_READ | PROT_WRITE);
|
||||
|
||||
return 0;
|
||||
}
|
||||
23
hw/i386/kvm/xen_primary_console.h
Normal file
23
hw/i386/kvm/xen_primary_console.h
Normal file
@ -0,0 +1,23 @@
|
||||
/*
|
||||
* QEMU Xen emulation: Primary console support
|
||||
*
|
||||
* Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* Authors: David Woodhouse <dwmw2@infradead.org>
|
||||
*
|
||||
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
||||
* See the COPYING file in the top-level directory.
|
||||
*/
|
||||
|
||||
#ifndef QEMU_XEN_PRIMARY_CONSOLE_H
|
||||
#define QEMU_XEN_PRIMARY_CONSOLE_H
|
||||
|
||||
void xen_primary_console_create(void);
|
||||
int xen_primary_console_reset(void);
|
||||
|
||||
uint16_t xen_primary_console_get_port(void);
|
||||
void xen_primary_console_set_be_port(uint16_t port);
|
||||
uint64_t xen_primary_console_get_pfn(void);
|
||||
void *xen_primary_console_get_map(void);
|
||||
|
||||
#endif /* QEMU_XEN_PRIMARY_CONSOLE_H */
|
||||
@ -25,6 +25,7 @@
|
||||
#include "hw/xen/xen_backend_ops.h"
|
||||
#include "xen_overlay.h"
|
||||
#include "xen_evtchn.h"
|
||||
#include "xen_primary_console.h"
|
||||
#include "xen_xenstore.h"
|
||||
|
||||
#include "sysemu/kvm.h"
|
||||
@ -331,7 +332,7 @@ static void xs_error(XenXenstoreState *s, unsigned int id,
|
||||
const char *errstr = NULL;
|
||||
|
||||
for (unsigned int i = 0; i < ARRAY_SIZE(xsd_errors); i++) {
|
||||
struct xsd_errors *xsd_error = &xsd_errors[i];
|
||||
const struct xsd_errors *xsd_error = &xsd_errors[i];
|
||||
|
||||
if (xsd_error->errnum == errnum) {
|
||||
errstr = xsd_error->errstring;
|
||||
@ -1434,6 +1435,8 @@ static void alloc_guest_port(XenXenstoreState *s)
|
||||
int xen_xenstore_reset(void)
|
||||
{
|
||||
XenXenstoreState *s = xen_xenstore_singleton;
|
||||
int console_port;
|
||||
GList *perms;
|
||||
int err;
|
||||
|
||||
if (!s) {
|
||||
@ -1461,6 +1464,24 @@ int xen_xenstore_reset(void)
|
||||
}
|
||||
s->be_port = err;
|
||||
|
||||
/* Create frontend store nodes */
|
||||
perms = g_list_append(NULL, xs_perm_as_string(XS_PERM_NONE, DOMID_QEMU));
|
||||
perms = g_list_append(perms, xs_perm_as_string(XS_PERM_READ, xen_domid));
|
||||
|
||||
relpath_printf(s, perms, "store/port", "%u", s->guest_port);
|
||||
relpath_printf(s, perms, "store/ring-ref", "%lu",
|
||||
XEN_SPECIAL_PFN(XENSTORE));
|
||||
|
||||
console_port = xen_primary_console_get_port();
|
||||
if (console_port) {
|
||||
relpath_printf(s, perms, "console/ring-ref", "%lu",
|
||||
XEN_SPECIAL_PFN(CONSOLE));
|
||||
relpath_printf(s, perms, "console/port", "%u", console_port);
|
||||
relpath_printf(s, perms, "console/state", "%u", XenbusStateInitialised);
|
||||
}
|
||||
|
||||
g_list_free_full(perms, g_free);
|
||||
|
||||
/*
|
||||
* We don't actually access the guest's page through the grant, because
|
||||
* this isn't real Xen, and we can just use the page we gave it in the
|
||||
|
||||
11
hw/i386/pc.c
11
hw/i386/pc.c
@ -1261,7 +1261,7 @@ void pc_basic_device_init(struct PCMachineState *pcms,
|
||||
if (pcms->bus) {
|
||||
pci_create_simple(pcms->bus, -1, "xen-platform");
|
||||
}
|
||||
xen_bus_init();
|
||||
pcms->xenbus = xen_bus_init();
|
||||
xen_be_init();
|
||||
}
|
||||
#endif
|
||||
@ -1289,7 +1289,8 @@ void pc_basic_device_init(struct PCMachineState *pcms,
|
||||
pcms->vmport != ON_OFF_AUTO_ON);
|
||||
}
|
||||
|
||||
void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus)
|
||||
void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus,
|
||||
BusState *xen_bus)
|
||||
{
|
||||
MachineClass *mc = MACHINE_CLASS(pcmc);
|
||||
int i;
|
||||
@ -1299,7 +1300,11 @@ void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus)
|
||||
NICInfo *nd = &nd_table[i];
|
||||
const char *model = nd->model ? nd->model : mc->default_nic;
|
||||
|
||||
if (g_str_equal(model, "ne2k_isa")) {
|
||||
if (xen_bus && (!nd->model || g_str_equal(model, "xen-net-device"))) {
|
||||
DeviceState *dev = qdev_new("xen-net-device");
|
||||
qdev_set_nic_properties(dev, nd);
|
||||
qdev_realize_and_unref(dev, xen_bus, &error_fatal);
|
||||
} else if (g_str_equal(model, "ne2k_isa")) {
|
||||
pc_init_ne2k_isa(isa_bus, nd);
|
||||
} else {
|
||||
pci_nic_init_nofail(nd, pci_bus, model, NULL);
|
||||
|
||||
@ -342,7 +342,7 @@ static void pc_init1(MachineState *machine,
|
||||
pc_basic_device_init(pcms, isa_bus, x86ms->gsi, rtc_state, true,
|
||||
0x4);
|
||||
|
||||
pc_nic_init(pcmc, isa_bus, pci_bus);
|
||||
pc_nic_init(pcmc, isa_bus, pci_bus, pcms->xenbus);
|
||||
|
||||
if (pcmc->pci_enabled) {
|
||||
pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
|
||||
|
||||
@ -340,7 +340,7 @@ static void pc_q35_init(MachineState *machine)
|
||||
|
||||
/* the rest devices to which pci devfn is automatically assigned */
|
||||
pc_vga_init(isa_bus, host_bus);
|
||||
pc_nic_init(pcmc, isa_bus, host_bus);
|
||||
pc_nic_init(pcmc, isa_bus, host_bus, pcms->xenbus);
|
||||
|
||||
if (machine->nvdimms_state->is_enabled) {
|
||||
nvdimm_init_acpi_state(machine->nvdimms_state, system_io,
|
||||
|
||||
@ -140,9 +140,14 @@ static void unplug_nic(PCIBus *b, PCIDevice *d, void *o)
|
||||
/* Remove the peer of the NIC device. Normally, this would be a tap device. */
|
||||
static void del_nic_peer(NICState *nic, void *opaque)
|
||||
{
|
||||
NetClientState *nc;
|
||||
NetClientState *nc = qemu_get_queue(nic);
|
||||
ObjectClass *klass = module_object_class_by_name(nc->model);
|
||||
|
||||
/* Only delete peers of PCI NICs that we're about to delete */
|
||||
if (!klass || !object_class_dynamic_cast(klass, TYPE_PCI_DEVICE)) {
|
||||
return;
|
||||
}
|
||||
|
||||
nc = qemu_get_queue(nic);
|
||||
if (nc->peer)
|
||||
qemu_del_net_client(nc->peer);
|
||||
}
|
||||
@ -164,39 +169,60 @@ static void pci_unplug_nics(PCIBus *bus)
|
||||
*
|
||||
* [1] https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=docs/misc/hvm-emulated-unplug.pandoc
|
||||
*/
|
||||
static void pci_xen_ide_unplug(PCIDevice *d, bool aux)
|
||||
struct ide_unplug_state {
|
||||
bool aux;
|
||||
int nr_unplugged;
|
||||
};
|
||||
|
||||
static int ide_dev_unplug(DeviceState *dev, void *_st)
|
||||
{
|
||||
DeviceState *dev = DEVICE(d);
|
||||
PCIIDEState *pci_ide;
|
||||
int i;
|
||||
struct ide_unplug_state *st = _st;
|
||||
IDEDevice *idedev;
|
||||
IDEBus *idebus;
|
||||
BlockBackend *blk;
|
||||
int unit;
|
||||
|
||||
pci_ide = PCI_IDE(dev);
|
||||
|
||||
for (i = aux ? 1 : 0; i < 4; i++) {
|
||||
idebus = &pci_ide->bus[i / 2];
|
||||
blk = idebus->ifs[i % 2].blk;
|
||||
|
||||
if (blk && idebus->ifs[i % 2].drive_kind != IDE_CD) {
|
||||
if (!(i % 2)) {
|
||||
idedev = idebus->master;
|
||||
} else {
|
||||
idedev = idebus->slave;
|
||||
}
|
||||
|
||||
blk_drain(blk);
|
||||
blk_flush(blk);
|
||||
|
||||
blk_detach_dev(blk, DEVICE(idedev));
|
||||
idebus->ifs[i % 2].blk = NULL;
|
||||
idedev->conf.blk = NULL;
|
||||
monitor_remove_blk(blk);
|
||||
blk_unref(blk);
|
||||
}
|
||||
idedev = IDE_DEVICE(object_dynamic_cast(OBJECT(dev), "ide-hd"));
|
||||
if (!idedev) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
idebus = IDE_BUS(qdev_get_parent_bus(dev));
|
||||
|
||||
unit = (idedev == idebus->slave);
|
||||
assert(unit || idedev == idebus->master);
|
||||
|
||||
if (st->aux && !unit && !strcmp(BUS(idebus)->name, "ide.0")) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
blk = idebus->ifs[unit].blk;
|
||||
if (blk) {
|
||||
blk_drain(blk);
|
||||
blk_flush(blk);
|
||||
|
||||
blk_detach_dev(blk, DEVICE(idedev));
|
||||
idebus->ifs[unit].blk = NULL;
|
||||
idedev->conf.blk = NULL;
|
||||
monitor_remove_blk(blk);
|
||||
blk_unref(blk);
|
||||
}
|
||||
|
||||
object_unparent(OBJECT(dev));
|
||||
st->nr_unplugged++;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void pci_xen_ide_unplug(PCIDevice *d, bool aux)
|
||||
{
|
||||
struct ide_unplug_state st = { aux, 0 };
|
||||
DeviceState *dev = DEVICE(d);
|
||||
|
||||
qdev_walk_children(dev, NULL, NULL, ide_dev_unplug, NULL, &st);
|
||||
if (st.nr_unplugged) {
|
||||
pci_device_reset(d);
|
||||
}
|
||||
pci_device_reset(d);
|
||||
}
|
||||
|
||||
static void unplug_disks(PCIBus *b, PCIDevice *d, void *opaque)
|
||||
@ -211,6 +237,7 @@ static void unplug_disks(PCIBus *b, PCIDevice *d, void *opaque)
|
||||
|
||||
switch (pci_get_word(d->config + PCI_CLASS_DEVICE)) {
|
||||
case PCI_CLASS_STORAGE_IDE:
|
||||
case PCI_CLASS_STORAGE_SATA:
|
||||
pci_xen_ide_unplug(d, aux);
|
||||
break;
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
system_ss.add(when: 'CONFIG_DP8393X', if_true: files('dp8393x.c'))
|
||||
system_ss.add(when: 'CONFIG_XEN', if_true: files('xen_nic.c'))
|
||||
system_ss.add(when: 'CONFIG_XEN_BUS', if_true: files('xen_nic.c'))
|
||||
system_ss.add(when: 'CONFIG_NE2000_COMMON', if_true: files('ne2000.c'))
|
||||
|
||||
# PCI network cards
|
||||
|
||||
@ -482,3 +482,14 @@ dp8393x_receive_oversize(int size) "oversize packet, pkt_size is %d"
|
||||
dp8393x_receive_not_netcard(void) "packet not for netcard"
|
||||
dp8393x_receive_packet(int crba) "Receive packet at 0x%"PRIx32
|
||||
dp8393x_receive_write_status(int crba) "Write status at 0x%"PRIx32
|
||||
|
||||
# xen_nic.c
|
||||
xen_netdev_realize(int dev, const char *info, const char *peer) "vif%u info '%s' peer '%s'"
|
||||
xen_netdev_unrealize(int dev) "vif%u"
|
||||
xen_netdev_create(int dev) "vif%u"
|
||||
xen_netdev_destroy(int dev) "vif%u"
|
||||
xen_netdev_disconnect(int dev) "vif%u"
|
||||
xen_netdev_connect(int dev, unsigned int tx, unsigned int rx, int port) "vif%u tx %u rx %u port %u"
|
||||
xen_netdev_frontend_changed(const char *dev, int state) "vif%s state %d"
|
||||
xen_netdev_tx(int dev, int ref, int off, int len, unsigned int flags, const char *c, const char *d, const char *m, const char *e) "vif%u ref %u off %u len %u flags 0x%x%s%s%s%s"
|
||||
xen_netdev_rx(int dev, int idx, int status, int flags) "vif%u idx %d status %d flags 0x%x"
|
||||
|
||||
488
hw/net/xen_nic.c
488
hw/net/xen_nic.c
@ -20,6 +20,13 @@
|
||||
*/
|
||||
|
||||
#include "qemu/osdep.h"
|
||||
#include "qemu/main-loop.h"
|
||||
#include "qemu/cutils.h"
|
||||
#include "qemu/log.h"
|
||||
#include "qemu/qemu-print.h"
|
||||
#include "qapi/qmp/qdict.h"
|
||||
#include "qapi/error.h"
|
||||
|
||||
#include <sys/socket.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/wait.h>
|
||||
@ -27,18 +34,26 @@
|
||||
#include "net/net.h"
|
||||
#include "net/checksum.h"
|
||||
#include "net/util.h"
|
||||
#include "hw/xen/xen-legacy-backend.h"
|
||||
|
||||
#include "hw/xen/xen-backend.h"
|
||||
#include "hw/xen/xen-bus-helper.h"
|
||||
#include "hw/qdev-properties.h"
|
||||
#include "hw/qdev-properties-system.h"
|
||||
|
||||
#include "hw/xen/interface/io/netif.h"
|
||||
#include "hw/xen/interface/io/xs_wire.h"
|
||||
|
||||
#include "trace.h"
|
||||
|
||||
/* ------------------------------------------------------------- */
|
||||
|
||||
struct XenNetDev {
|
||||
struct XenLegacyDevice xendev; /* must be first */
|
||||
char *mac;
|
||||
struct XenDevice xendev; /* must be first */
|
||||
XenEventChannel *event_channel;
|
||||
int dev;
|
||||
int tx_work;
|
||||
int tx_ring_ref;
|
||||
int rx_ring_ref;
|
||||
unsigned int tx_ring_ref;
|
||||
unsigned int rx_ring_ref;
|
||||
struct netif_tx_sring *txs;
|
||||
struct netif_rx_sring *rxs;
|
||||
netif_tx_back_ring_t tx_ring;
|
||||
@ -47,6 +62,11 @@ struct XenNetDev {
|
||||
NICState *nic;
|
||||
};
|
||||
|
||||
typedef struct XenNetDev XenNetDev;
|
||||
|
||||
#define TYPE_XEN_NET_DEVICE "xen-net-device"
|
||||
OBJECT_DECLARE_SIMPLE_TYPE(XenNetDev, XEN_NET_DEVICE)
|
||||
|
||||
/* ------------------------------------------------------------- */
|
||||
|
||||
static void net_tx_response(struct XenNetDev *netdev, netif_tx_request_t *txp, int8_t st)
|
||||
@ -68,7 +88,8 @@ static void net_tx_response(struct XenNetDev *netdev, netif_tx_request_t *txp, i
|
||||
netdev->tx_ring.rsp_prod_pvt = ++i;
|
||||
RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&netdev->tx_ring, notify);
|
||||
if (notify) {
|
||||
xen_pv_send_notify(&netdev->xendev);
|
||||
xen_device_notify_event_channel(XEN_DEVICE(netdev),
|
||||
netdev->event_channel, NULL);
|
||||
}
|
||||
|
||||
if (i == netdev->tx_ring.req_cons) {
|
||||
@ -104,13 +125,16 @@ static void net_tx_error(struct XenNetDev *netdev, netif_tx_request_t *txp, RING
|
||||
#endif
|
||||
}
|
||||
|
||||
static void net_tx_packets(struct XenNetDev *netdev)
|
||||
static bool net_tx_packets(struct XenNetDev *netdev)
|
||||
{
|
||||
bool done_something = false;
|
||||
netif_tx_request_t txreq;
|
||||
RING_IDX rc, rp;
|
||||
void *page;
|
||||
void *tmpbuf = NULL;
|
||||
|
||||
assert(qemu_mutex_iothread_locked());
|
||||
|
||||
for (;;) {
|
||||
rc = netdev->tx_ring.req_cons;
|
||||
rp = netdev->tx_ring.sring->req_prod;
|
||||
@ -122,49 +146,52 @@ static void net_tx_packets(struct XenNetDev *netdev)
|
||||
}
|
||||
memcpy(&txreq, RING_GET_REQUEST(&netdev->tx_ring, rc), sizeof(txreq));
|
||||
netdev->tx_ring.req_cons = ++rc;
|
||||
done_something = true;
|
||||
|
||||
#if 1
|
||||
/* should not happen in theory, we don't announce the *
|
||||
* feature-{sg,gso,whatelse} flags in xenstore (yet?) */
|
||||
if (txreq.flags & NETTXF_extra_info) {
|
||||
xen_pv_printf(&netdev->xendev, 0, "FIXME: extra info flag\n");
|
||||
qemu_log_mask(LOG_UNIMP, "vif%u: FIXME: extra info flag\n",
|
||||
netdev->dev);
|
||||
net_tx_error(netdev, &txreq, rc);
|
||||
continue;
|
||||
}
|
||||
if (txreq.flags & NETTXF_more_data) {
|
||||
xen_pv_printf(&netdev->xendev, 0, "FIXME: more data flag\n");
|
||||
qemu_log_mask(LOG_UNIMP, "vif%u: FIXME: more data flag\n",
|
||||
netdev->dev);
|
||||
net_tx_error(netdev, &txreq, rc);
|
||||
continue;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (txreq.size < 14) {
|
||||
xen_pv_printf(&netdev->xendev, 0, "bad packet size: %d\n",
|
||||
txreq.size);
|
||||
qemu_log_mask(LOG_GUEST_ERROR, "vif%u: bad packet size: %d\n",
|
||||
netdev->dev, txreq.size);
|
||||
net_tx_error(netdev, &txreq, rc);
|
||||
continue;
|
||||
}
|
||||
|
||||
if ((txreq.offset + txreq.size) > XEN_PAGE_SIZE) {
|
||||
xen_pv_printf(&netdev->xendev, 0, "error: page crossing\n");
|
||||
qemu_log_mask(LOG_GUEST_ERROR, "vif%u: error: page crossing\n",
|
||||
netdev->dev);
|
||||
net_tx_error(netdev, &txreq, rc);
|
||||
continue;
|
||||
}
|
||||
|
||||
xen_pv_printf(&netdev->xendev, 3,
|
||||
"tx packet ref %d, off %d, len %d, flags 0x%x%s%s%s%s\n",
|
||||
txreq.gref, txreq.offset, txreq.size, txreq.flags,
|
||||
(txreq.flags & NETTXF_csum_blank) ? " csum_blank" : "",
|
||||
(txreq.flags & NETTXF_data_validated) ? " data_validated" : "",
|
||||
(txreq.flags & NETTXF_more_data) ? " more_data" : "",
|
||||
(txreq.flags & NETTXF_extra_info) ? " extra_info" : "");
|
||||
trace_xen_netdev_tx(netdev->dev, txreq.gref, txreq.offset,
|
||||
txreq.size, txreq.flags,
|
||||
(txreq.flags & NETTXF_csum_blank) ? " csum_blank" : "",
|
||||
(txreq.flags & NETTXF_data_validated) ? " data_validated" : "",
|
||||
(txreq.flags & NETTXF_more_data) ? " more_data" : "",
|
||||
(txreq.flags & NETTXF_extra_info) ? " extra_info" : "");
|
||||
|
||||
page = xen_be_map_grant_ref(&netdev->xendev, txreq.gref,
|
||||
PROT_READ);
|
||||
page = xen_device_map_grant_refs(&netdev->xendev, &txreq.gref, 1,
|
||||
PROT_READ, NULL);
|
||||
if (page == NULL) {
|
||||
xen_pv_printf(&netdev->xendev, 0,
|
||||
"error: tx gref dereference failed (%d)\n",
|
||||
txreq.gref);
|
||||
qemu_log_mask(LOG_GUEST_ERROR,
|
||||
"vif%u: tx gref dereference failed (%d)\n",
|
||||
netdev->dev, txreq.gref);
|
||||
net_tx_error(netdev, &txreq, rc);
|
||||
continue;
|
||||
}
|
||||
@ -181,7 +208,8 @@ static void net_tx_packets(struct XenNetDev *netdev)
|
||||
qemu_send_packet(qemu_get_queue(netdev->nic),
|
||||
page + txreq.offset, txreq.size);
|
||||
}
|
||||
xen_be_unmap_grant_ref(&netdev->xendev, page, txreq.gref);
|
||||
xen_device_unmap_grant_refs(&netdev->xendev, page, &txreq.gref, 1,
|
||||
NULL);
|
||||
net_tx_response(netdev, &txreq, NETIF_RSP_OKAY);
|
||||
}
|
||||
if (!netdev->tx_work) {
|
||||
@ -190,6 +218,7 @@ static void net_tx_packets(struct XenNetDev *netdev)
|
||||
netdev->tx_work = 0;
|
||||
}
|
||||
g_free(tmpbuf);
|
||||
return done_something;
|
||||
}
|
||||
|
||||
/* ------------------------------------------------------------- */
|
||||
@ -212,14 +241,13 @@ static void net_rx_response(struct XenNetDev *netdev,
|
||||
resp->status = (int16_t)st;
|
||||
}
|
||||
|
||||
xen_pv_printf(&netdev->xendev, 3,
|
||||
"rx response: idx %d, status %d, flags 0x%x\n",
|
||||
i, resp->status, resp->flags);
|
||||
trace_xen_netdev_rx(netdev->dev, i, resp->status, resp->flags);
|
||||
|
||||
netdev->rx_ring.rsp_prod_pvt = ++i;
|
||||
RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&netdev->rx_ring, notify);
|
||||
if (notify) {
|
||||
xen_pv_send_notify(&netdev->xendev);
|
||||
xen_device_notify_event_channel(XEN_DEVICE(netdev),
|
||||
netdev->event_channel, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
@ -232,7 +260,9 @@ static ssize_t net_rx_packet(NetClientState *nc, const uint8_t *buf, size_t size
|
||||
RING_IDX rc, rp;
|
||||
void *page;
|
||||
|
||||
if (netdev->xendev.be_state != XenbusStateConnected) {
|
||||
assert(qemu_mutex_iothread_locked());
|
||||
|
||||
if (xen_device_backend_get_state(&netdev->xendev) != XenbusStateConnected) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -244,24 +274,26 @@ static ssize_t net_rx_packet(NetClientState *nc, const uint8_t *buf, size_t size
|
||||
return 0;
|
||||
}
|
||||
if (size > XEN_PAGE_SIZE - NET_IP_ALIGN) {
|
||||
xen_pv_printf(&netdev->xendev, 0, "packet too big (%lu > %ld)",
|
||||
(unsigned long)size, XEN_PAGE_SIZE - NET_IP_ALIGN);
|
||||
qemu_log_mask(LOG_GUEST_ERROR, "vif%u: packet too big (%lu > %ld)",
|
||||
netdev->dev, (unsigned long)size,
|
||||
XEN_PAGE_SIZE - NET_IP_ALIGN);
|
||||
return -1;
|
||||
}
|
||||
|
||||
memcpy(&rxreq, RING_GET_REQUEST(&netdev->rx_ring, rc), sizeof(rxreq));
|
||||
netdev->rx_ring.req_cons = ++rc;
|
||||
|
||||
page = xen_be_map_grant_ref(&netdev->xendev, rxreq.gref, PROT_WRITE);
|
||||
page = xen_device_map_grant_refs(&netdev->xendev, &rxreq.gref, 1,
|
||||
PROT_WRITE, NULL);
|
||||
if (page == NULL) {
|
||||
xen_pv_printf(&netdev->xendev, 0,
|
||||
"error: rx gref dereference failed (%d)\n",
|
||||
rxreq.gref);
|
||||
qemu_log_mask(LOG_GUEST_ERROR,
|
||||
"vif%u: rx gref dereference failed (%d)\n",
|
||||
netdev->dev, rxreq.gref);
|
||||
net_rx_response(netdev, &rxreq, NETIF_RSP_ERROR, 0, 0, 0);
|
||||
return -1;
|
||||
}
|
||||
memcpy(page + NET_IP_ALIGN, buf, size);
|
||||
xen_be_unmap_grant_ref(&netdev->xendev, page, rxreq.gref);
|
||||
xen_device_unmap_grant_refs(&netdev->xendev, page, &rxreq.gref, 1, NULL);
|
||||
net_rx_response(netdev, &rxreq, NETIF_RSP_OKAY, NET_IP_ALIGN, size, 0);
|
||||
|
||||
return size;
|
||||
@ -275,139 +307,361 @@ static NetClientInfo net_xen_info = {
|
||||
.receive = net_rx_packet,
|
||||
};
|
||||
|
||||
static int net_init(struct XenLegacyDevice *xendev)
|
||||
static void xen_netdev_realize(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
|
||||
ERRP_GUARD();
|
||||
XenNetDev *netdev = XEN_NET_DEVICE(xendev);
|
||||
NetClientState *nc;
|
||||
|
||||
/* read xenstore entries */
|
||||
if (netdev->mac == NULL) {
|
||||
netdev->mac = xenstore_read_be_str(&netdev->xendev, "mac");
|
||||
}
|
||||
qemu_macaddr_default_if_unset(&netdev->conf.macaddr);
|
||||
|
||||
/* do we have all we need? */
|
||||
if (netdev->mac == NULL) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (net_parse_macaddr(netdev->conf.macaddr.a, netdev->mac) < 0) {
|
||||
return -1;
|
||||
}
|
||||
xen_device_frontend_printf(xendev, "mac", "%02x:%02x:%02x:%02x:%02x:%02x",
|
||||
netdev->conf.macaddr.a[0],
|
||||
netdev->conf.macaddr.a[1],
|
||||
netdev->conf.macaddr.a[2],
|
||||
netdev->conf.macaddr.a[3],
|
||||
netdev->conf.macaddr.a[4],
|
||||
netdev->conf.macaddr.a[5]);
|
||||
|
||||
netdev->nic = qemu_new_nic(&net_xen_info, &netdev->conf,
|
||||
"xen", NULL, netdev);
|
||||
object_get_typename(OBJECT(xendev)),
|
||||
DEVICE(xendev)->id, netdev);
|
||||
|
||||
qemu_set_info_str(qemu_get_queue(netdev->nic),
|
||||
"nic: xenbus vif macaddr=%s", netdev->mac);
|
||||
nc = qemu_get_queue(netdev->nic);
|
||||
qemu_format_nic_info_str(nc, netdev->conf.macaddr.a);
|
||||
|
||||
/* fill info */
|
||||
xenstore_write_be_int(&netdev->xendev, "feature-rx-copy", 1);
|
||||
xenstore_write_be_int(&netdev->xendev, "feature-rx-flip", 0);
|
||||
xen_device_backend_printf(xendev, "feature-rx-copy", "%u", 1);
|
||||
xen_device_backend_printf(xendev, "feature-rx-flip", "%u", 0);
|
||||
|
||||
return 0;
|
||||
trace_xen_netdev_realize(netdev->dev, nc->info_str, nc->peer ?
|
||||
nc->peer->name : "(none)");
|
||||
}
|
||||
|
||||
static int net_connect(struct XenLegacyDevice *xendev)
|
||||
static bool net_event(void *_xendev)
|
||||
{
|
||||
struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
|
||||
int rx_copy;
|
||||
XenNetDev *netdev = XEN_NET_DEVICE(_xendev);
|
||||
bool done_something;
|
||||
|
||||
if (xenstore_read_fe_int(&netdev->xendev, "tx-ring-ref",
|
||||
&netdev->tx_ring_ref) == -1) {
|
||||
return -1;
|
||||
}
|
||||
if (xenstore_read_fe_int(&netdev->xendev, "rx-ring-ref",
|
||||
&netdev->rx_ring_ref) == -1) {
|
||||
return 1;
|
||||
}
|
||||
if (xenstore_read_fe_int(&netdev->xendev, "event-channel",
|
||||
&netdev->xendev.remote_port) == -1) {
|
||||
return -1;
|
||||
done_something = net_tx_packets(netdev);
|
||||
qemu_flush_queued_packets(qemu_get_queue(netdev->nic));
|
||||
return done_something;
|
||||
}
|
||||
|
||||
static bool xen_netdev_connect(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
XenNetDev *netdev = XEN_NET_DEVICE(xendev);
|
||||
unsigned int port, rx_copy;
|
||||
|
||||
assert(qemu_mutex_iothread_locked());
|
||||
|
||||
if (xen_device_frontend_scanf(xendev, "tx-ring-ref", "%u",
|
||||
&netdev->tx_ring_ref) != 1) {
|
||||
error_setg(errp, "failed to read tx-ring-ref");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (xenstore_read_fe_int(&netdev->xendev, "request-rx-copy", &rx_copy) == -1) {
|
||||
if (xen_device_frontend_scanf(xendev, "rx-ring-ref", "%u",
|
||||
&netdev->rx_ring_ref) != 1) {
|
||||
error_setg(errp, "failed to read rx-ring-ref");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (xen_device_frontend_scanf(xendev, "event-channel", "%u",
|
||||
&port) != 1) {
|
||||
error_setg(errp, "failed to read event-channel");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (xen_device_frontend_scanf(xendev, "request-rx-copy", "%u",
|
||||
&rx_copy) != 1) {
|
||||
rx_copy = 0;
|
||||
}
|
||||
if (rx_copy == 0) {
|
||||
xen_pv_printf(&netdev->xendev, 0,
|
||||
"frontend doesn't support rx-copy.\n");
|
||||
return -1;
|
||||
error_setg(errp, "frontend doesn't support rx-copy");
|
||||
return false;
|
||||
}
|
||||
|
||||
netdev->txs = xen_be_map_grant_ref(&netdev->xendev,
|
||||
netdev->tx_ring_ref,
|
||||
PROT_READ | PROT_WRITE);
|
||||
netdev->txs = xen_device_map_grant_refs(xendev,
|
||||
&netdev->tx_ring_ref, 1,
|
||||
PROT_READ | PROT_WRITE,
|
||||
errp);
|
||||
if (!netdev->txs) {
|
||||
return -1;
|
||||
error_prepend(errp, "failed to map tx grant ref: ");
|
||||
return false;
|
||||
}
|
||||
netdev->rxs = xen_be_map_grant_ref(&netdev->xendev,
|
||||
netdev->rx_ring_ref,
|
||||
PROT_READ | PROT_WRITE);
|
||||
|
||||
netdev->rxs = xen_device_map_grant_refs(xendev,
|
||||
&netdev->rx_ring_ref, 1,
|
||||
PROT_READ | PROT_WRITE,
|
||||
errp);
|
||||
if (!netdev->rxs) {
|
||||
xen_be_unmap_grant_ref(&netdev->xendev, netdev->txs,
|
||||
netdev->tx_ring_ref);
|
||||
netdev->txs = NULL;
|
||||
return -1;
|
||||
error_prepend(errp, "failed to map rx grant ref: ");
|
||||
return false;
|
||||
}
|
||||
|
||||
BACK_RING_INIT(&netdev->tx_ring, netdev->txs, XEN_PAGE_SIZE);
|
||||
BACK_RING_INIT(&netdev->rx_ring, netdev->rxs, XEN_PAGE_SIZE);
|
||||
|
||||
xen_be_bind_evtchn(&netdev->xendev);
|
||||
netdev->event_channel = xen_device_bind_event_channel(xendev, port,
|
||||
net_event,
|
||||
netdev,
|
||||
errp);
|
||||
if (!netdev->event_channel) {
|
||||
return false;
|
||||
}
|
||||
|
||||
xen_pv_printf(&netdev->xendev, 1, "ok: tx-ring-ref %d, rx-ring-ref %d, "
|
||||
"remote port %d, local port %d\n",
|
||||
netdev->tx_ring_ref, netdev->rx_ring_ref,
|
||||
netdev->xendev.remote_port, netdev->xendev.local_port);
|
||||
trace_xen_netdev_connect(netdev->dev, netdev->tx_ring_ref,
|
||||
netdev->rx_ring_ref, port);
|
||||
|
||||
net_tx_packets(netdev);
|
||||
return 0;
|
||||
return true;
|
||||
}
|
||||
|
||||
static void net_disconnect(struct XenLegacyDevice *xendev)
|
||||
static void xen_netdev_disconnect(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
|
||||
XenNetDev *netdev = XEN_NET_DEVICE(xendev);
|
||||
|
||||
xen_pv_unbind_evtchn(&netdev->xendev);
|
||||
trace_xen_netdev_disconnect(netdev->dev);
|
||||
|
||||
assert(qemu_mutex_iothread_locked());
|
||||
|
||||
netdev->tx_ring.sring = NULL;
|
||||
netdev->rx_ring.sring = NULL;
|
||||
|
||||
if (netdev->event_channel) {
|
||||
xen_device_unbind_event_channel(xendev, netdev->event_channel,
|
||||
errp);
|
||||
netdev->event_channel = NULL;
|
||||
}
|
||||
if (netdev->txs) {
|
||||
xen_be_unmap_grant_ref(&netdev->xendev, netdev->txs,
|
||||
netdev->tx_ring_ref);
|
||||
xen_device_unmap_grant_refs(xendev, netdev->txs,
|
||||
&netdev->tx_ring_ref, 1, errp);
|
||||
netdev->txs = NULL;
|
||||
}
|
||||
if (netdev->rxs) {
|
||||
xen_be_unmap_grant_ref(&netdev->xendev, netdev->rxs,
|
||||
netdev->rx_ring_ref);
|
||||
xen_device_unmap_grant_refs(xendev, netdev->rxs,
|
||||
&netdev->rx_ring_ref, 1, errp);
|
||||
netdev->rxs = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static void net_event(struct XenLegacyDevice *xendev)
|
||||
/* -------------------------------------------------------------------- */
|
||||
|
||||
|
||||
static void xen_netdev_frontend_changed(XenDevice *xendev,
|
||||
enum xenbus_state frontend_state,
|
||||
Error **errp)
|
||||
{
|
||||
struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
|
||||
net_tx_packets(netdev);
|
||||
qemu_flush_queued_packets(qemu_get_queue(netdev->nic));
|
||||
ERRP_GUARD();
|
||||
enum xenbus_state backend_state = xen_device_backend_get_state(xendev);
|
||||
|
||||
trace_xen_netdev_frontend_changed(xendev->name, frontend_state);
|
||||
|
||||
switch (frontend_state) {
|
||||
case XenbusStateConnected:
|
||||
if (backend_state == XenbusStateConnected) {
|
||||
break;
|
||||
}
|
||||
|
||||
xen_netdev_disconnect(xendev, errp);
|
||||
if (*errp) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (!xen_netdev_connect(xendev, errp)) {
|
||||
xen_netdev_disconnect(xendev, NULL);
|
||||
xen_device_backend_set_state(xendev, XenbusStateClosing);
|
||||
break;
|
||||
}
|
||||
|
||||
xen_device_backend_set_state(xendev, XenbusStateConnected);
|
||||
break;
|
||||
|
||||
case XenbusStateClosing:
|
||||
xen_device_backend_set_state(xendev, XenbusStateClosing);
|
||||
break;
|
||||
|
||||
case XenbusStateClosed:
|
||||
case XenbusStateUnknown:
|
||||
xen_netdev_disconnect(xendev, errp);
|
||||
if (*errp) {
|
||||
break;
|
||||
}
|
||||
|
||||
xen_device_backend_set_state(xendev, XenbusStateClosed);
|
||||
break;
|
||||
|
||||
case XenbusStateInitialised:
|
||||
/*
|
||||
* Linux netback does nothing on the frontend going (back) to
|
||||
* XenbusStateInitialised, so do the same here.
|
||||
*/
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static int net_free(struct XenLegacyDevice *xendev)
|
||||
static char *xen_netdev_get_name(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
|
||||
XenNetDev *netdev = XEN_NET_DEVICE(xendev);
|
||||
|
||||
if (netdev->dev == -1) {
|
||||
XenBus *xenbus = XEN_BUS(qdev_get_parent_bus(DEVICE(xendev)));
|
||||
char fe_path[XENSTORE_ABS_PATH_MAX + 1];
|
||||
int idx = (xen_mode == XEN_EMULATE) ? 0 : 1;
|
||||
char *value;
|
||||
|
||||
/* Theoretically we could go up to INT_MAX here but that's overkill */
|
||||
while (idx < 100) {
|
||||
snprintf(fe_path, sizeof(fe_path),
|
||||
"/local/domain/%u/device/vif/%u",
|
||||
xendev->frontend_id, idx);
|
||||
value = qemu_xen_xs_read(xenbus->xsh, XBT_NULL, fe_path, NULL);
|
||||
if (!value) {
|
||||
if (errno == ENOENT) {
|
||||
netdev->dev = idx;
|
||||
goto found;
|
||||
}
|
||||
error_setg(errp, "cannot read %s: %s", fe_path,
|
||||
strerror(errno));
|
||||
return NULL;
|
||||
}
|
||||
free(value);
|
||||
idx++;
|
||||
}
|
||||
error_setg(errp, "cannot find device index for netdev device");
|
||||
return NULL;
|
||||
}
|
||||
found:
|
||||
return g_strdup_printf("%u", netdev->dev);
|
||||
}
|
||||
|
||||
static void xen_netdev_unrealize(XenDevice *xendev)
|
||||
{
|
||||
XenNetDev *netdev = XEN_NET_DEVICE(xendev);
|
||||
|
||||
trace_xen_netdev_unrealize(netdev->dev);
|
||||
|
||||
/* Disconnect from the frontend in case this has not already happened */
|
||||
xen_netdev_disconnect(xendev, NULL);
|
||||
|
||||
if (netdev->nic) {
|
||||
qemu_del_nic(netdev->nic);
|
||||
netdev->nic = NULL;
|
||||
}
|
||||
g_free(netdev->mac);
|
||||
netdev->mac = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ------------------------------------------------------------- */
|
||||
|
||||
struct XenDevOps xen_netdev_ops = {
|
||||
.size = sizeof(struct XenNetDev),
|
||||
.flags = DEVOPS_FLAG_NEED_GNTDEV,
|
||||
.init = net_init,
|
||||
.initialise = net_connect,
|
||||
.event = net_event,
|
||||
.disconnect = net_disconnect,
|
||||
.free = net_free,
|
||||
static Property xen_netdev_properties[] = {
|
||||
DEFINE_NIC_PROPERTIES(XenNetDev, conf),
|
||||
DEFINE_PROP_INT32("idx", XenNetDev, dev, -1),
|
||||
DEFINE_PROP_END_OF_LIST(),
|
||||
};
|
||||
|
||||
static void xen_netdev_class_init(ObjectClass *class, void *data)
|
||||
{
|
||||
DeviceClass *dev_class = DEVICE_CLASS(class);
|
||||
XenDeviceClass *xendev_class = XEN_DEVICE_CLASS(class);
|
||||
|
||||
xendev_class->backend = "qnic";
|
||||
xendev_class->device = "vif";
|
||||
xendev_class->get_name = xen_netdev_get_name;
|
||||
xendev_class->realize = xen_netdev_realize;
|
||||
xendev_class->frontend_changed = xen_netdev_frontend_changed;
|
||||
xendev_class->unrealize = xen_netdev_unrealize;
|
||||
set_bit(DEVICE_CATEGORY_NETWORK, dev_class->categories);
|
||||
dev_class->user_creatable = true;
|
||||
|
||||
device_class_set_props(dev_class, xen_netdev_properties);
|
||||
}
|
||||
|
||||
static const TypeInfo xen_net_type_info = {
|
||||
.name = TYPE_XEN_NET_DEVICE,
|
||||
.parent = TYPE_XEN_DEVICE,
|
||||
.instance_size = sizeof(XenNetDev),
|
||||
.class_init = xen_netdev_class_init,
|
||||
};
|
||||
|
||||
static void xen_net_register_types(void)
|
||||
{
|
||||
type_register_static(&xen_net_type_info);
|
||||
}
|
||||
|
||||
type_init(xen_net_register_types)
|
||||
|
||||
/* Called to instantiate a XenNetDev when the backend is detected. */
|
||||
static void xen_net_device_create(XenBackendInstance *backend,
|
||||
QDict *opts, Error **errp)
|
||||
{
|
||||
ERRP_GUARD();
|
||||
XenBus *xenbus = xen_backend_get_bus(backend);
|
||||
const char *name = xen_backend_get_name(backend);
|
||||
XenDevice *xendev = NULL;
|
||||
unsigned long number;
|
||||
const char *macstr;
|
||||
XenNetDev *net;
|
||||
MACAddr mac;
|
||||
|
||||
if (qemu_strtoul(name, NULL, 10, &number) || number >= INT_MAX) {
|
||||
error_setg(errp, "failed to parse name '%s'", name);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
trace_xen_netdev_create(number);
|
||||
|
||||
macstr = qdict_get_try_str(opts, "mac");
|
||||
if (macstr == NULL) {
|
||||
error_setg(errp, "no MAC address found");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (net_parse_macaddr(mac.a, macstr) < 0) {
|
||||
error_setg(errp, "failed to parse MAC address");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
xendev = XEN_DEVICE(qdev_new(TYPE_XEN_NET_DEVICE));
|
||||
net = XEN_NET_DEVICE(xendev);
|
||||
|
||||
net->dev = number;
|
||||
memcpy(&net->conf.macaddr, &mac, sizeof(mac));
|
||||
|
||||
if (qdev_realize_and_unref(DEVICE(xendev), BUS(xenbus), errp)) {
|
||||
xen_backend_set_device(backend, xendev);
|
||||
return;
|
||||
}
|
||||
|
||||
error_prepend(errp, "realization of net device %lu failed: ",
|
||||
number);
|
||||
|
||||
fail:
|
||||
if (xendev) {
|
||||
object_unparent(OBJECT(xendev));
|
||||
}
|
||||
}
|
||||
|
||||
static void xen_net_device_destroy(XenBackendInstance *backend,
|
||||
Error **errp)
|
||||
{
|
||||
ERRP_GUARD();
|
||||
XenDevice *xendev = xen_backend_get_device(backend);
|
||||
XenNetDev *netdev = XEN_NET_DEVICE(xendev);
|
||||
|
||||
trace_xen_netdev_destroy(netdev->dev);
|
||||
|
||||
object_unparent(OBJECT(xendev));
|
||||
}
|
||||
|
||||
static const XenBackendInfo xen_net_backend_info = {
|
||||
.type = "qnic",
|
||||
.create = xen_net_device_create,
|
||||
.destroy = xen_net_device_destroy,
|
||||
};
|
||||
|
||||
static void xen_net_register_backend(void)
|
||||
{
|
||||
xen_backend_register(&xen_net_backend_info);
|
||||
}
|
||||
|
||||
xen_backend_init(xen_net_register_backend);
|
||||
|
||||
@ -101,6 +101,24 @@ static XenBackendInstance *xen_backend_list_find(XenDevice *xendev)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
bool xen_backend_exists(const char *type, const char *name)
|
||||
{
|
||||
const XenBackendImpl *impl = xen_backend_table_lookup(type);
|
||||
XenBackendInstance *backend;
|
||||
|
||||
if (!impl) {
|
||||
return false;
|
||||
}
|
||||
|
||||
QLIST_FOREACH(backend, &backend_list, entry) {
|
||||
if (backend->impl == impl && !strcmp(backend->name, name)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static void xen_backend_list_remove(XenBackendInstance *backend)
|
||||
{
|
||||
QLIST_REMOVE(backend, entry);
|
||||
@ -122,11 +140,6 @@ void xen_backend_device_create(XenBus *xenbus, const char *type,
|
||||
backend->name = g_strdup(name);
|
||||
|
||||
impl->create(backend, opts, errp);
|
||||
if (*errp) {
|
||||
g_free(backend->name);
|
||||
g_free(backend);
|
||||
return;
|
||||
}
|
||||
|
||||
backend->impl = impl;
|
||||
xen_backend_list_add(backend);
|
||||
@ -165,7 +178,9 @@ bool xen_backend_try_device_destroy(XenDevice *xendev, Error **errp)
|
||||
}
|
||||
|
||||
impl = backend->impl;
|
||||
impl->destroy(backend, errp);
|
||||
if (backend->xendev) {
|
||||
impl->destroy(backend, errp);
|
||||
}
|
||||
|
||||
xen_backend_list_remove(backend);
|
||||
g_free(backend->name);
|
||||
|
||||
@ -209,7 +209,8 @@ static void xen_bus_type_enumerate(XenBus *xenbus, const char *type)
|
||||
NULL, "%u", &online) != 1)
|
||||
online = 0;
|
||||
|
||||
if (online && state == XenbusStateInitialising) {
|
||||
if (online && state == XenbusStateInitialising &&
|
||||
!xen_backend_exists(type, backend[i])) {
|
||||
Error *local_err = NULL;
|
||||
|
||||
xen_bus_backend_create(xenbus, type, backend[i], backend_path,
|
||||
@ -711,8 +712,17 @@ static void xen_device_frontend_create(XenDevice *xendev, Error **errp)
|
||||
{
|
||||
ERRP_GUARD();
|
||||
XenBus *xenbus = XEN_BUS(qdev_get_parent_bus(DEVICE(xendev)));
|
||||
XenDeviceClass *xendev_class = XEN_DEVICE_GET_CLASS(xendev);
|
||||
|
||||
xendev->frontend_path = xen_device_get_frontend_path(xendev);
|
||||
if (xendev_class->get_frontend_path) {
|
||||
xendev->frontend_path = xendev_class->get_frontend_path(xendev, errp);
|
||||
if (!xendev->frontend_path) {
|
||||
error_prepend(errp, "failed to create frontend: ");
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
xendev->frontend_path = xen_device_get_frontend_path(xendev);
|
||||
}
|
||||
|
||||
/*
|
||||
* The frontend area may have already been created by a legacy
|
||||
@ -912,6 +922,11 @@ void xen_device_notify_event_channel(XenDevice *xendev,
|
||||
}
|
||||
}
|
||||
|
||||
unsigned int xen_event_channel_get_local_port(XenEventChannel *channel)
|
||||
{
|
||||
return channel->local_port;
|
||||
}
|
||||
|
||||
void xen_device_unbind_event_channel(XenDevice *xendev,
|
||||
XenEventChannel *channel,
|
||||
Error **errp)
|
||||
@ -1118,11 +1133,13 @@ static void xen_register_types(void)
|
||||
|
||||
type_init(xen_register_types)
|
||||
|
||||
void xen_bus_init(void)
|
||||
BusState *xen_bus_init(void)
|
||||
{
|
||||
DeviceState *dev = qdev_new(TYPE_XEN_BRIDGE);
|
||||
BusState *bus = qbus_new(TYPE_XEN_BUS, dev, NULL);
|
||||
|
||||
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
|
||||
qbus_set_bus_hotplug_handler(bus);
|
||||
|
||||
return bus;
|
||||
}
|
||||
|
||||
@ -623,7 +623,6 @@ void xen_be_init(void)
|
||||
|
||||
xen_set_dynamic_sysbus();
|
||||
|
||||
xen_be_register("console", &xen_console_ops);
|
||||
xen_be_register("vkbd", &xen_kbdmouse_ops);
|
||||
#ifdef CONFIG_VIRTFS
|
||||
xen_be_register("9pfs", &xen_9pfs_ops);
|
||||
|
||||
@ -46,34 +46,6 @@ static int xen_config_dev_all(char *fe, char *be)
|
||||
|
||||
/* ------------------------------------------------------------- */
|
||||
|
||||
int xen_config_dev_blk(DriveInfo *disk)
|
||||
{
|
||||
char fe[256], be[256], device_name[32];
|
||||
int vdev = 202 * 256 + 16 * disk->unit;
|
||||
int cdrom = disk->media_cd;
|
||||
const char *devtype = cdrom ? "cdrom" : "disk";
|
||||
const char *mode = cdrom ? "r" : "w";
|
||||
const char *filename = qemu_opt_get(disk->opts, "file");
|
||||
|
||||
snprintf(device_name, sizeof(device_name), "xvd%c", 'a' + disk->unit);
|
||||
xen_pv_printf(NULL, 1, "config disk %d [%s]: %s\n",
|
||||
disk->unit, device_name, filename);
|
||||
xen_config_dev_dirs("vbd", "qdisk", vdev, fe, be, sizeof(fe));
|
||||
|
||||
/* frontend */
|
||||
xenstore_write_int(fe, "virtual-device", vdev);
|
||||
xenstore_write_str(fe, "device-type", devtype);
|
||||
|
||||
/* backend */
|
||||
xenstore_write_str(be, "dev", device_name);
|
||||
xenstore_write_str(be, "type", "file");
|
||||
xenstore_write_str(be, "params", filename);
|
||||
xenstore_write_str(be, "mode", mode);
|
||||
|
||||
/* common stuff */
|
||||
return xen_config_dev_all(fe, be);
|
||||
}
|
||||
|
||||
int xen_config_dev_nic(NICInfo *nic)
|
||||
{
|
||||
char fe[256], be[256];
|
||||
|
||||
@ -32,7 +32,6 @@
|
||||
|
||||
static void xen_init_pv(MachineState *machine)
|
||||
{
|
||||
DriveInfo *dinfo;
|
||||
int i;
|
||||
|
||||
setup_xen_backend_ops();
|
||||
@ -55,7 +54,6 @@ static void xen_init_pv(MachineState *machine)
|
||||
}
|
||||
|
||||
xen_be_register("vfb", &xen_framebuffer_ops);
|
||||
xen_be_register("qnic", &xen_netdev_ops);
|
||||
|
||||
/* configure framebuffer */
|
||||
if (vga_interface_type == VGA_XENFB) {
|
||||
@ -64,14 +62,6 @@ static void xen_init_pv(MachineState *machine)
|
||||
vga_interface_created = true;
|
||||
}
|
||||
|
||||
/* configure disks */
|
||||
for (i = 0; i < 16; i++) {
|
||||
dinfo = drive_get(IF_XEN, 0, i);
|
||||
if (!dinfo)
|
||||
continue;
|
||||
xen_config_dev_blk(dinfo);
|
||||
}
|
||||
|
||||
/* configure nics */
|
||||
for (i = 0; i < nb_nics; i++) {
|
||||
if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen"))
|
||||
|
||||
@ -33,6 +33,7 @@ typedef struct PCMachineState {
|
||||
|
||||
/* Pointers to devices and objects: */
|
||||
PCIBus *bus;
|
||||
BusState *xenbus;
|
||||
I2CBus *smbus;
|
||||
PFlashCFI01 *flash[2];
|
||||
ISADevice *pcspk;
|
||||
@ -184,7 +185,8 @@ void pc_basic_device_init(struct PCMachineState *pcms,
|
||||
void pc_cmos_init(PCMachineState *pcms,
|
||||
BusState *ide0, BusState *ide1,
|
||||
ISADevice *s);
|
||||
void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus);
|
||||
void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus,
|
||||
BusState *xen_bus);
|
||||
|
||||
void pc_i8259_create(ISABus *isa_bus, qemu_irq *i8259_irqs);
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* arch-arm.h
|
||||
*
|
||||
* Guest OS interface to ARM Xen.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright 2011 (C) Citrix Systems
|
||||
*/
|
||||
|
||||
@ -361,6 +344,7 @@ typedef uint64_t xen_callback_t;
|
||||
#define PSR_DBG_MASK (1<<9) /* arm64: Debug Exception mask */
|
||||
#define PSR_IT_MASK (0x0600fc00) /* Thumb If-Then Mask */
|
||||
#define PSR_JAZELLE (1<<24) /* Jazelle Mode */
|
||||
#define PSR_Z (1<<30) /* Zero condition flag */
|
||||
|
||||
/* 32 bit modes */
|
||||
#define PSR_MODE_USR 0x10
|
||||
@ -383,7 +367,15 @@ typedef uint64_t xen_callback_t;
|
||||
#define PSR_MODE_EL1t 0x04
|
||||
#define PSR_MODE_EL0t 0x00
|
||||
|
||||
#define PSR_GUEST32_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC)
|
||||
/*
|
||||
* We set PSR_Z to be able to boot Linux kernel versions with an invalid
|
||||
* encoding of the first 8 NOP instructions. See commit a92882a4d270 in
|
||||
* Linux.
|
||||
*
|
||||
* Note that PSR_Z is also set by U-Boot and QEMU -kernel when loading
|
||||
* zImage kernels on aarch32.
|
||||
*/
|
||||
#define PSR_GUEST32_INIT (PSR_Z|PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC)
|
||||
#define PSR_GUEST64_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_EL1h)
|
||||
|
||||
#define SCTLR_GUEST_INIT xen_mk_ullong(0x00c50078)
|
||||
@ -398,6 +390,10 @@ typedef uint64_t xen_callback_t;
|
||||
|
||||
/* Physical Address Space */
|
||||
|
||||
/* Virtio MMIO mappings */
|
||||
#define GUEST_VIRTIO_MMIO_BASE xen_mk_ullong(0x02000000)
|
||||
#define GUEST_VIRTIO_MMIO_SIZE xen_mk_ullong(0x00100000)
|
||||
|
||||
/*
|
||||
* vGIC mappings: Only one set of mapping is used by the guest.
|
||||
* Therefore they can overlap.
|
||||
@ -484,6 +480,9 @@ typedef uint64_t xen_callback_t;
|
||||
|
||||
#define GUEST_VPL011_SPI 32
|
||||
|
||||
#define GUEST_VIRTIO_MMIO_SPI_FIRST 33
|
||||
#define GUEST_VIRTIO_MMIO_SPI_LAST 43
|
||||
|
||||
/* PSCI functions */
|
||||
#define PSCI_cpu_suspend 0
|
||||
#define PSCI_cpu_off 1
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* arch-x86/cpuid.h
|
||||
*
|
||||
* CPUID interface to Xen.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2007 Citrix Systems, Inc.
|
||||
*
|
||||
* Authors:
|
||||
@ -102,6 +85,18 @@
|
||||
#define XEN_HVM_CPUID_IOMMU_MAPPINGS (1u << 2)
|
||||
#define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */
|
||||
#define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */
|
||||
/*
|
||||
* With interrupt format set to 0 (non-remappable) bits 55:49 from the
|
||||
* IO-APIC RTE and bits 11:5 from the MSI address can be used to store
|
||||
* high bits for the Destination ID. This expands the Destination ID
|
||||
* field from 8 to 15 bits, allowing to target APIC IDs up 32768.
|
||||
*/
|
||||
#define XEN_HVM_CPUID_EXT_DEST_ID (1u << 5)
|
||||
/*
|
||||
* Per-vCPU event channel upcalls work correctly with physical IRQs
|
||||
* bound to event channels.
|
||||
*/
|
||||
#define XEN_HVM_CPUID_UPCALL_VECTOR (1u << 6)
|
||||
|
||||
/*
|
||||
* Leaf 6 (0x40000x05)
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* xen-x86_32.h
|
||||
*
|
||||
* Guest OS interface to x86 32-bit Xen.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2004-2007, K A Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* xen-x86_64.h
|
||||
*
|
||||
* Guest OS interface to x86 64-bit Xen.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2004-2006, K A Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* arch-x86/xen.h
|
||||
*
|
||||
* Guest OS interface to x86 Xen.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2004-2006, K A Fraser
|
||||
*/
|
||||
|
||||
@ -320,12 +303,9 @@ struct xen_arch_domainconfig {
|
||||
uint32_t misc_flags;
|
||||
};
|
||||
|
||||
/* Location of online VCPU bitmap. */
|
||||
#define XEN_ACPI_CPU_MAP 0xaf00
|
||||
#define XEN_ACPI_CPU_MAP_LEN ((HVM_MAX_VCPUS + 7) / 8)
|
||||
/* Max XEN_X86_* constant. Used for ABI checking. */
|
||||
#define XEN_X86_MISC_FLAGS_MAX XEN_X86_MSR_RELAXED
|
||||
|
||||
/* GPE0 bit set during CPU hotplug */
|
||||
#define XEN_ACPI_GPE0_CPUHP_BIT 2
|
||||
#endif
|
||||
|
||||
/*
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* event_channel.h
|
||||
*
|
||||
* Event channels between domains.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2003-2004, K A Fraser.
|
||||
*/
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* features.h
|
||||
*
|
||||
* Feature flags, reported by XENVER_get_features.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2006, Keir Fraser <keir@xensource.com>
|
||||
*/
|
||||
|
||||
|
||||
@ -1,27 +1,10 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* grant_table.h
|
||||
*
|
||||
* Interface for granting foreign access to page frames, and receiving
|
||||
* page-ownership transfers.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2004, K A Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -1,22 +1,5 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2007, Keir Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -1,22 +1,5 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2007, Keir Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* blkif.h
|
||||
*
|
||||
* Unified block-device I/O interface for Xen guest OSes.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2003-2004, Keir Fraser
|
||||
* Copyright (c) 2012, Spectra Logic Corporation
|
||||
*/
|
||||
@ -363,6 +346,14 @@
|
||||
* that the frontend requires that the logical block size is 512 as it
|
||||
* is hardcoded (which is the case in some frontend implementations).
|
||||
*
|
||||
* trusted
|
||||
* Values: 0/1 (boolean)
|
||||
* Default value: 1
|
||||
*
|
||||
* A value of "0" indicates that the frontend should not trust the
|
||||
* backend, and should deploy whatever measures available to protect from
|
||||
* a malicious backend on the other end.
|
||||
*
|
||||
*------------------------- Virtual Device Properties -------------------------
|
||||
*
|
||||
* device-type
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* console.h
|
||||
*
|
||||
* Console I/O interface for Xen guest OSes.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2005, Keir Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -1,24 +1,7 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*
|
||||
* fbif.h -- Xen virtual frame buffer device
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
|
||||
* Copyright (C) 2006 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
|
||||
*/
|
||||
|
||||
@ -1,24 +1,7 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*
|
||||
* kbdif.h -- Xen virtual keyboard/mouse
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
|
||||
* Copyright (C) 2006 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
|
||||
*/
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* netif.h
|
||||
*
|
||||
* Unified network-device I/O interface for Xen guest OSes.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2003-2004, Keir Fraser
|
||||
*/
|
||||
|
||||
@ -160,6 +143,12 @@
|
||||
* be applied if it is set.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The setting of "trusted" node to "0" in the frontend path signals that the
|
||||
* frontend should not trust the backend, and should deploy whatever measures
|
||||
* available to protect from a malicious backend on the other end.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Control ring
|
||||
* ============
|
||||
|
||||
@ -1,24 +1,7 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* protocols.h
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2008, Keir Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* ring.h
|
||||
*
|
||||
* Shared producer-consumer ring macros.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Tim Deegan and Andrew Warfield November 2004.
|
||||
*/
|
||||
|
||||
@ -95,9 +78,8 @@ typedef unsigned int RING_IDX;
|
||||
* of the shared memory area (PAGE_SIZE, for instance). To initialise
|
||||
* the front half:
|
||||
*
|
||||
* mytag_front_ring_t front_ring;
|
||||
* SHARED_RING_INIT((mytag_sring_t *)shared_page);
|
||||
* FRONT_RING_INIT(&front_ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
|
||||
* mytag_front_ring_t ring;
|
||||
* XEN_FRONT_RING_INIT(&ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
|
||||
*
|
||||
* Initializing the back follows similarly (note that only the front
|
||||
* initializes the shared ring):
|
||||
@ -184,6 +166,11 @@ typedef struct __name##_back_ring __name##_back_ring_t
|
||||
|
||||
#define FRONT_RING_INIT(_r, _s, __size) FRONT_RING_ATTACH(_r, _s, 0, __size)
|
||||
|
||||
#define XEN_FRONT_RING_INIT(r, s, size) do { \
|
||||
SHARED_RING_INIT(s); \
|
||||
FRONT_RING_INIT(r, s, size); \
|
||||
} while (0)
|
||||
|
||||
#define BACK_RING_ATTACH(_r, _s, _i, __size) do { \
|
||||
(_r)->rsp_prod_pvt = (_i); \
|
||||
(_r)->req_cons = (_i); \
|
||||
@ -208,11 +195,11 @@ typedef struct __name##_back_ring __name##_back_ring_t
|
||||
(RING_FREE_REQUESTS(_r) == 0)
|
||||
|
||||
/* Test if there are outstanding messages to be processed on a ring. */
|
||||
#define RING_HAS_UNCONSUMED_RESPONSES(_r) \
|
||||
#define XEN_RING_NR_UNCONSUMED_RESPONSES(_r) \
|
||||
((_r)->sring->rsp_prod - (_r)->rsp_cons)
|
||||
|
||||
#ifdef __GNUC__
|
||||
#define RING_HAS_UNCONSUMED_REQUESTS(_r) ({ \
|
||||
#define XEN_RING_NR_UNCONSUMED_REQUESTS(_r) ({ \
|
||||
unsigned int req = (_r)->sring->req_prod - (_r)->req_cons; \
|
||||
unsigned int rsp = RING_SIZE(_r) - \
|
||||
((_r)->req_cons - (_r)->rsp_prod_pvt); \
|
||||
@ -220,13 +207,27 @@ typedef struct __name##_back_ring __name##_back_ring_t
|
||||
})
|
||||
#else
|
||||
/* Same as above, but without the nice GCC ({ ... }) syntax. */
|
||||
#define RING_HAS_UNCONSUMED_REQUESTS(_r) \
|
||||
#define XEN_RING_NR_UNCONSUMED_REQUESTS(_r) \
|
||||
((((_r)->sring->req_prod - (_r)->req_cons) < \
|
||||
(RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt))) ? \
|
||||
((_r)->sring->req_prod - (_r)->req_cons) : \
|
||||
(RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt)))
|
||||
#endif
|
||||
|
||||
#ifdef XEN_RING_HAS_UNCONSUMED_IS_BOOL
|
||||
/*
|
||||
* These variants should only be used in case no caller is abusing them for
|
||||
* obtaining the number of unconsumed responses/requests.
|
||||
*/
|
||||
#define RING_HAS_UNCONSUMED_RESPONSES(_r) \
|
||||
(!!XEN_RING_NR_UNCONSUMED_RESPONSES(_r))
|
||||
#define RING_HAS_UNCONSUMED_REQUESTS(_r) \
|
||||
(!!XEN_RING_NR_UNCONSUMED_REQUESTS(_r))
|
||||
#else
|
||||
#define RING_HAS_UNCONSUMED_RESPONSES(_r) XEN_RING_NR_UNCONSUMED_RESPONSES(_r)
|
||||
#define RING_HAS_UNCONSUMED_REQUESTS(_r) XEN_RING_NR_UNCONSUMED_REQUESTS(_r)
|
||||
#endif
|
||||
|
||||
/* Direct access to individual ring elements, by index. */
|
||||
#define RING_GET_REQUEST(_r, _idx) \
|
||||
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].req))
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*
|
||||
* usbif.h
|
||||
*
|
||||
@ -5,24 +6,6 @@
|
||||
*
|
||||
* Copyright (C) 2009, FUJITSU LABORATORIES LTD.
|
||||
* Author: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef __XEN_PUBLIC_IO_USBIF_H__
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*****************************************************************************
|
||||
* xenbus.h
|
||||
*
|
||||
* Xenbus protocol details.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (C) 2005 XenSource Ltd.
|
||||
*/
|
||||
|
||||
|
||||
@ -1,25 +1,8 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*
|
||||
* Details of the "wire" protocol between Xen Store Daemon and client
|
||||
* library or guest kernel.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (C) 2005 Rusty Russell IBM Corporation
|
||||
*/
|
||||
|
||||
@ -71,11 +54,12 @@ struct xsd_errors
|
||||
#ifdef EINVAL
|
||||
#define XSD_ERROR(x) { x, #x }
|
||||
/* LINTED: static unused */
|
||||
static struct xsd_errors xsd_errors[]
|
||||
static const struct xsd_errors xsd_errors[]
|
||||
#if defined(__GNUC__)
|
||||
__attribute__((unused))
|
||||
#endif
|
||||
= {
|
||||
/* /!\ New errors should be added at the end of the array. */
|
||||
XSD_ERROR(EINVAL),
|
||||
XSD_ERROR(EACCES),
|
||||
XSD_ERROR(EEXIST),
|
||||
@ -90,7 +74,8 @@ __attribute__((unused))
|
||||
XSD_ERROR(EBUSY),
|
||||
XSD_ERROR(EAGAIN),
|
||||
XSD_ERROR(EISCONN),
|
||||
XSD_ERROR(E2BIG)
|
||||
XSD_ERROR(E2BIG),
|
||||
XSD_ERROR(EPERM),
|
||||
};
|
||||
#endif
|
||||
|
||||
@ -124,6 +109,7 @@ struct xenstore_domain_interface {
|
||||
XENSTORE_RING_IDX rsp_cons, rsp_prod;
|
||||
uint32_t server_features; /* Bitmap of features supported by the server */
|
||||
uint32_t connection;
|
||||
uint32_t error;
|
||||
};
|
||||
|
||||
/* Violating this is very bad. See docs/misc/xenstore.txt. */
|
||||
@ -135,10 +121,18 @@ struct xenstore_domain_interface {
|
||||
|
||||
/* The ability to reconnect a ring */
|
||||
#define XENSTORE_SERVER_FEATURE_RECONNECTION 1
|
||||
/* The presence of the "error" field in the ring page */
|
||||
#define XENSTORE_SERVER_FEATURE_ERROR 2
|
||||
|
||||
/* Valid values for the connection field */
|
||||
#define XENSTORE_CONNECTED 0 /* the steady-state */
|
||||
#define XENSTORE_RECONNECT 1 /* guest has initiated a reconnect */
|
||||
#define XENSTORE_RECONNECT 1 /* reconnect in progress */
|
||||
|
||||
/* Valid values for the error field */
|
||||
#define XENSTORE_ERROR_NONE 0 /* No error */
|
||||
#define XENSTORE_ERROR_COMM 1 /* Communication problem */
|
||||
#define XENSTORE_ERROR_RINGIDX 2 /* Invalid ring index */
|
||||
#define XENSTORE_ERROR_PROTO 3 /* Protocol violation (payload too long) */
|
||||
|
||||
#endif /* _XS_WIRE_H */
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* memory.h
|
||||
*
|
||||
* Memory reservation and information.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
|
||||
*/
|
||||
|
||||
@ -541,12 +524,14 @@ struct xen_mem_sharing_op {
|
||||
uint32_t gref; /* IN: gref to debug */
|
||||
} u;
|
||||
} debug;
|
||||
struct mem_sharing_op_fork { /* OP_FORK */
|
||||
struct mem_sharing_op_fork { /* OP_FORK{,_RESET} */
|
||||
domid_t parent_domain; /* IN: parent's domain id */
|
||||
/* Only makes sense for short-lived forks */
|
||||
#define XENMEM_FORK_WITH_IOMMU_ALLOWED (1u << 0)
|
||||
/* Only makes sense for short-lived forks */
|
||||
#define XENMEM_FORK_BLOCK_INTERRUPTS (1u << 1)
|
||||
#define XENMEM_FORK_RESET_STATE (1u << 2)
|
||||
#define XENMEM_FORK_RESET_MEMORY (1u << 3)
|
||||
uint16_t flags; /* IN: optional settings */
|
||||
uint32_t pad; /* Must be set to 0 */
|
||||
} fork;
|
||||
@ -662,6 +647,13 @@ struct xen_mem_acquire_resource {
|
||||
* two calls.
|
||||
*/
|
||||
uint32_t nr_frames;
|
||||
/*
|
||||
* Padding field, must be zero on input.
|
||||
* In a previous version this was an output field with the lowest bit
|
||||
* named XENMEM_rsrc_acq_caller_owned. Future versions of this interface
|
||||
* will not reuse this bit as an output with the field being zero on
|
||||
* input.
|
||||
*/
|
||||
uint32_t pad;
|
||||
/*
|
||||
* IN - the index of the initial frame to be mapped. This parameter
|
||||
|
||||
@ -1,22 +1,5 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2006, Keir Fraser
|
||||
*/
|
||||
|
||||
@ -211,8 +194,8 @@ struct physdev_manage_pci_ext {
|
||||
/* IN */
|
||||
uint8_t bus;
|
||||
uint8_t devfn;
|
||||
unsigned is_extfn;
|
||||
unsigned is_virtfn;
|
||||
uint32_t is_extfn;
|
||||
uint32_t is_virtfn;
|
||||
struct {
|
||||
uint8_t bus;
|
||||
uint8_t devfn;
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* sched.h
|
||||
*
|
||||
* Scheduler state interactions
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
|
||||
*/
|
||||
|
||||
|
||||
@ -1,24 +1,7 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* include/public/trace.h
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Mark Williamson, (C) 2004 Intel Research Cambridge
|
||||
* Copyright (C) 2005 Bin Ren
|
||||
*/
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* vcpu.h
|
||||
*
|
||||
* VCPU initialisation, query, and hotplug.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
|
||||
*/
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* version.h
|
||||
*
|
||||
* Xen version, type, and compile information.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2005, Nguyen Anh Quynh <aquynh@gmail.com>
|
||||
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
|
||||
*/
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* xen-compat.h
|
||||
*
|
||||
* Guest OS interface to Xen. Compatibility layer.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2006, Christian Limpach
|
||||
*/
|
||||
|
||||
|
||||
@ -1,26 +1,9 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
/******************************************************************************
|
||||
* xen.h
|
||||
*
|
||||
* Guest OS interface to Xen.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright (c) 2004, K A Fraser
|
||||
*/
|
||||
|
||||
|
||||
@ -33,6 +33,7 @@ XenDevice *xen_backend_get_device(XenBackendInstance *backend);
|
||||
void xen_backend_register(const XenBackendInfo *info);
|
||||
const char **xen_backend_get_types(unsigned int *nr);
|
||||
|
||||
bool xen_backend_exists(const char *type, const char *name);
|
||||
void xen_backend_device_create(XenBus *xenbus, const char *type,
|
||||
const char *name, QDict *opts, Error **errp);
|
||||
bool xen_backend_try_device_destroy(XenDevice *xendev, Error **errp);
|
||||
|
||||
@ -33,6 +33,7 @@ struct XenDevice {
|
||||
};
|
||||
typedef struct XenDevice XenDevice;
|
||||
|
||||
typedef char *(*XenDeviceGetFrontendPath)(XenDevice *xendev, Error **errp);
|
||||
typedef char *(*XenDeviceGetName)(XenDevice *xendev, Error **errp);
|
||||
typedef void (*XenDeviceRealize)(XenDevice *xendev, Error **errp);
|
||||
typedef void (*XenDeviceFrontendChanged)(XenDevice *xendev,
|
||||
@ -46,6 +47,7 @@ struct XenDeviceClass {
|
||||
/*< public >*/
|
||||
const char *backend;
|
||||
const char *device;
|
||||
XenDeviceGetFrontendPath get_frontend_path;
|
||||
XenDeviceGetName get_name;
|
||||
XenDeviceRealize realize;
|
||||
XenDeviceFrontendChanged frontend_changed;
|
||||
@ -73,7 +75,7 @@ struct XenBusClass {
|
||||
OBJECT_DECLARE_TYPE(XenBus, XenBusClass,
|
||||
XEN_BUS)
|
||||
|
||||
void xen_bus_init(void);
|
||||
BusState *xen_bus_init(void);
|
||||
|
||||
void xen_device_backend_set_state(XenDevice *xendev,
|
||||
enum xenbus_state state);
|
||||
@ -129,5 +131,6 @@ void xen_device_notify_event_channel(XenDevice *xendev,
|
||||
void xen_device_unbind_event_channel(XenDevice *xendev,
|
||||
XenEventChannel *channel,
|
||||
Error **errp);
|
||||
unsigned int xen_event_channel_get_local_port(XenEventChannel *channel);
|
||||
|
||||
#endif /* HW_XEN_BUS_H */
|
||||
|
||||
@ -81,7 +81,6 @@ extern struct XenDevOps xen_usb_ops; /* xen-usb.c */
|
||||
|
||||
/* configuration (aka xenbus setup) */
|
||||
void xen_config_cleanup(void);
|
||||
int xen_config_dev_blk(DriveInfo *disk);
|
||||
int xen_config_dev_nic(NICInfo *nic);
|
||||
int xen_config_dev_vfb(int vdev, const char *type);
|
||||
int xen_config_dev_vkbd(int vdev);
|
||||
|
||||
@ -3986,14 +3986,22 @@ ERST
|
||||
DEF("initrd", HAS_ARG, QEMU_OPTION_initrd, \
|
||||
"-initrd file use 'file' as initial ram disk\n", QEMU_ARCH_ALL)
|
||||
SRST
|
||||
|
||||
``-initrd file``
|
||||
Use file as initial ram disk.
|
||||
|
||||
``-initrd "file1 arg=foo,file2"``
|
||||
This syntax is only available with multiboot.
|
||||
|
||||
Use file1 and file2 as modules and pass arg=foo as parameter to the
|
||||
first module.
|
||||
Use file1 and file2 as modules and pass ``arg=foo`` as parameter to the
|
||||
first module. Commas can be provided in module parameters by doubling
|
||||
them on the command line to escape them:
|
||||
|
||||
``-initrd "bzImage earlyprintk=xen,,keep root=/dev/xvda1,initrd.img"``
|
||||
Multiboot only. Use bzImage as the first module with
|
||||
"``earlyprintk=xen,keep root=/dev/xvda1``" as its command line,
|
||||
and initrd.img as the second module.
|
||||
|
||||
ERST
|
||||
|
||||
DEF("dtb", HAS_ARG, QEMU_OPTION_dtb, \
|
||||
|
||||
@ -1837,6 +1837,10 @@ int kvm_arch_init_vcpu(CPUState *cs)
|
||||
c->eax |= XEN_HVM_CPUID_VCPU_ID_PRESENT;
|
||||
c->ebx = cs->cpu_index;
|
||||
}
|
||||
|
||||
if (cs->kvm_state->xen_version >= XEN_VERSION(4, 17)) {
|
||||
c->eax |= XEN_HVM_CPUID_UPCALL_VECTOR;
|
||||
}
|
||||
}
|
||||
|
||||
r = kvm_xen_init_vcpu(cs);
|
||||
|
||||
@ -28,6 +28,7 @@
|
||||
#include "hw/i386/kvm/xen_overlay.h"
|
||||
#include "hw/i386/kvm/xen_evtchn.h"
|
||||
#include "hw/i386/kvm/xen_gnttab.h"
|
||||
#include "hw/i386/kvm/xen_primary_console.h"
|
||||
#include "hw/i386/kvm/xen_xenstore.h"
|
||||
|
||||
#include "hw/xen/interface/version.h"
|
||||
@ -182,7 +183,8 @@ int kvm_xen_init(KVMState *s, uint32_t hypercall_msr)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* The page couldn't be overlaid until KVM was initialized */
|
||||
/* The pages couldn't be overlaid until KVM was initialized */
|
||||
xen_primary_console_reset();
|
||||
xen_xenstore_reset();
|
||||
|
||||
return 0;
|
||||
@ -812,11 +814,23 @@ static bool handle_get_param(struct kvm_xen_exit *exit, X86CPU *cpu,
|
||||
case HVM_PARAM_STORE_EVTCHN:
|
||||
hp.value = xen_xenstore_get_port();
|
||||
break;
|
||||
case HVM_PARAM_CONSOLE_PFN:
|
||||
hp.value = xen_primary_console_get_pfn();
|
||||
if (!hp.value) {
|
||||
err = -EINVAL;
|
||||
}
|
||||
break;
|
||||
case HVM_PARAM_CONSOLE_EVTCHN:
|
||||
hp.value = xen_primary_console_get_port();
|
||||
if (!hp.value) {
|
||||
err = -EINVAL;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
|
||||
if (kvm_copy_to_gva(cs, arg, &hp, sizeof(hp))) {
|
||||
if (!err && kvm_copy_to_gva(cs, arg, &hp, sizeof(hp))) {
|
||||
err = -EFAULT;
|
||||
}
|
||||
out:
|
||||
@ -1077,17 +1091,13 @@ static int vcpuop_stop_periodic_timer(CPUState *target)
|
||||
* Must always be called with xen_timers_lock held.
|
||||
*/
|
||||
static int do_set_singleshot_timer(CPUState *cs, uint64_t timeout_abs,
|
||||
bool future, bool linux_wa)
|
||||
bool linux_wa)
|
||||
{
|
||||
CPUX86State *env = &X86_CPU(cs)->env;
|
||||
int64_t now = kvm_get_current_ns();
|
||||
int64_t qemu_now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
|
||||
int64_t delta = timeout_abs - now;
|
||||
|
||||
if (future && timeout_abs < now) {
|
||||
return -ETIME;
|
||||
}
|
||||
|
||||
if (linux_wa && unlikely((int64_t)timeout_abs < 0 ||
|
||||
(delta > 0 && (uint32_t)(delta >> 50) != 0))) {
|
||||
/*
|
||||
@ -1129,9 +1139,13 @@ static int vcpuop_set_singleshot_timer(CPUState *cs, uint64_t arg)
|
||||
}
|
||||
|
||||
QEMU_LOCK_GUARD(&X86_CPU(cs)->env.xen_timers_lock);
|
||||
return do_set_singleshot_timer(cs, sst.timeout_abs_ns,
|
||||
!!(sst.flags & VCPU_SSHOTTMR_future),
|
||||
false);
|
||||
|
||||
/*
|
||||
* We ignore the VCPU_SSHOTTMR_future flag, just as Xen now does.
|
||||
* The only guest that ever used it, got it wrong.
|
||||
* https://xenbits.xen.org/gitweb/?p=xen.git;a=commitdiff;h=19c6cbd909
|
||||
*/
|
||||
return do_set_singleshot_timer(cs, sst.timeout_abs_ns, false);
|
||||
}
|
||||
|
||||
static int vcpuop_stop_singleshot_timer(CPUState *cs)
|
||||
@ -1156,7 +1170,7 @@ static bool kvm_xen_hcall_set_timer_op(struct kvm_xen_exit *exit, X86CPU *cpu,
|
||||
err = vcpuop_stop_singleshot_timer(CPU(cpu));
|
||||
} else {
|
||||
QEMU_LOCK_GUARD(&X86_CPU(cpu)->env.xen_timers_lock);
|
||||
err = do_set_singleshot_timer(CPU(cpu), timeout, false, true);
|
||||
err = do_set_singleshot_timer(CPU(cpu), timeout, true);
|
||||
}
|
||||
exit->u.hcall.result = err;
|
||||
return true;
|
||||
@ -1427,6 +1441,11 @@ int kvm_xen_soft_reset(void)
|
||||
return err;
|
||||
}
|
||||
|
||||
err = xen_primary_console_reset();
|
||||
if (err) {
|
||||
return err;
|
||||
}
|
||||
|
||||
err = xen_xenstore_reset();
|
||||
if (err) {
|
||||
return err;
|
||||
@ -1844,7 +1863,7 @@ int kvm_put_xen_state(CPUState *cs)
|
||||
QEMU_LOCK_GUARD(&env->xen_timers_lock);
|
||||
if (env->xen_singleshot_timer_ns) {
|
||||
ret = do_set_singleshot_timer(cs, env->xen_singleshot_timer_ns,
|
||||
false, false);
|
||||
false);
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user