Eliminate the set_rc argument from the gen_compute_fprf utility and
the corresponding (and incorrect) implementation. Replace it with
calls to the gen_set_cr1_from_fpscr() utility.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Update the Move From FPSCR (mffs.) instruction to correctly
set CR[1] from FPSCR[FX,FEX,VX,OX].
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The Floating Point Move instructions (fmr., fabs., fnabs., fneg.,
and fcpsgn.) incorrectly copy FPSCR[FPCC] instead of [FX,FEX,VX,OX].
Furthermore, the current code does this via a call to gen_compute_fprf,
which is awkward since these instructions do not actually set FPRF.
Change the code to use the gen_set_cr1_from_fpscr utility.
Signed-off-by: Tom Musta <tommusta@gmail.com>
[agraf: whitespace fixes]
Signed-off-by: Alexander Graf <agraf@suse.de>
The Power ISA square root instructions (fsqrt[s], frsqrte[s]) must
set the FPSCR[VXSQRT] flag when operating on a negative value.
However, NaNs have no sign and therefore this flag should not
be set when operating on one.
Change the order of the checks in the helper code. Move the
SNaN-to-QNaN macro to the top of the file so that it can be
re-used.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The Load Vector Element Indexed and Store Vector Element Indexed
instructions compute an effective address in the usual manner.
However, they truncate that address to the natural boundary.
For example, the lvewx instruction will ignore the least significant
two bits of the address and thus load the aligned word of storage.
Fix the generators for these instruction to properly perform this
truncation.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The e500 PCI controller has configurable windows that allow a guest OS
to selectively map parts of the PCI bus space to CPU address space and
to selectively map parts of the CPU address space for DMA requests into
PCI visible address ranges.
So far, we've simply assumed that this mapping is 1:1 and ignored it.
However, the PCICSRBAR (CCSR mapped in PCI bus space) always has to live
inside the first 32bits of address space. This means if we always treat
all mappings as 1:1, this map will collide with our RAM map from the CPU's
point of view.
So this patch adds proper ATMU support which allows us to keep the PCICSRBAR
below 32bits local to the PCI bus and have another, different window to PCI
BARs at the upper end of address space. We leverage this on e500plat though,
mpc8544ds stays virtually 1:1 like it was before, but now also goes via ATMU.
With this patch, I can run guests with lots of RAM and not coincidently access
MSI-X mappings while I really want to access RAM.
Signed-off-by: Alexander Graf <agraf@suse.de>
The mpc8544ds board only supports up to 3GB of RAM due to its limited
address space.
When the user requests more, abort and tell him that he should use less.
Signed-off-by: Alexander Graf <agraf@suse.de>
On e500 we're basically guaranteed to have 36bits of physical address space
available for our enjoyment. Older chips (like the mpc8544) only had 32bits,
but everything from e500v2 onwards bumped it up.
It's reasonably safe to assume that if you're using the PV machine, your guest
kernel is configured to support 36bit physical address space. So in order to
support more guest RAM, we can move CCSR and other MMIO windows right below the
end of our 36bit address space, just like later SoC versions of e500 do.
With this patch, I'm able to successfully spawn an e500 VM with -m 48G.
Signed-off-by: Alexander Graf <agraf@suse.de>
We want to have different MMIO region offsets for the mpc8544ds machine
and our e500 PV machine, so move the definitions of those into the machine
specific params struct.
Signed-off-by: Alexander Graf <agraf@suse.de>
The "memory-backend-ram" QOM object utilizes the mbind(2) syscall to
set the policy for a memory range. Add the syscall to the seccomp
sandbox whitelist.
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
Acked-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
Tested-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
This was reported for this warning:
hw/virtio/virtio-rng.c:150:31: warning: logical not is only applied to
the left hand side of comparison [-Wlogical-not-parentheses]
Reported-by: dcb
Suggested-by: dcb
Bug: https://bugs.launchpad.net/qemu/+bug/1393486
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
The 'config' field in the VirtIOSerial structure keeps a copy of the virtio
console's config space as visible to the guest, that is to say, in guest
endianness. This is fiddly to maintain, because on some targets, such as
powerpc, the "guest endianness" can change when a new guest OS boots.
In fact, there's no need to maintain such a guest view of config space -
instead we can reconstruct it from host-format data when it is accessed
with get_config.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
A number of places in the virtio_serial driver retrieve the number of ports
from vser->config.max_nr_ports, which is guest-endian. But for internal
users, we already have a host-endian copy of the number of ports in
vser->serial.max_virtserial_ports. Using that instead of the config field
removes the need for easy-to-forget byteswapping.
In particular this fixes a bug on incoming migration, where we don't adjust
the endianness vser->config correctly, because it hasn't yet been loaded
from the migration stream when virtio_serial_load_device() is called.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
The rocker device uses same PCI device ID as sdhci. Since rocker device driver
has already been accepted into Linux 3.18, and REDHAT_SDHCI device ID isn't
used by any drivers, it's safe to move REDHAT_SDHCI device ID, avoiding
conflict with rocker.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
OSes typically write 0xdd/0xdf to turn the A20 line off and on. This
has bits 2-3-6-7 on, so that the output port subsection is migrated.
Change the reset value and migration default to include those four
bits, thus avoiding that the subsection is migrated.
This strictly speaking changes guest ABI, but the long time during which
we have not migrated the value means that the guests really do not care
much; so the change is for all machine types.
Reported-by: Igor Mammedov <imammedo@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If the THR interrupt is disabled, there is no need to migrate thr_ipending
because LSR.THRE will be sampled again when the interrupt is enabled.
(This is the behavior that is not documented in the datasheet, but
relied on by Windows!)
Note that in this case IIR will never be 0x2 so, if thr_ipending were
to be one, QEMU would produce the subsection.
Reported-by: Igor Mammedov <imammedo@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Keys which send more than one scancode (esp. windows key) weren't handled
correctly since commit 1ff5eedd. Two events were put into the input event
queue but only one was processed. This fixes this by fetching all pending
events in the callback handler.
Signed-off-by: Michael Walle <michael@walle.cc>
Cc: Gerd Hoffmann <kraxel@redhat.com>
* enable 32-bit EL3 (TrustZone) for vexpress and virt boards
* add fw_cfg device to virt board for UEFI firmware config
* support passing commandline kernel/initrd to firmware
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=MhXg
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20141223' into staging
target-arm queue:
* enable 32-bit EL3 (TrustZone) for vexpress and virt boards
* add fw_cfg device to virt board for UEFI firmware config
* support passing commandline kernel/initrd to firmware
# gpg: Signature made Tue 23 Dec 2014 13:50:33 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20141223: (31 commits)
hw/arm/virt: enable passing of EFI-stubbed kernel to guest UEFI firmware
hw/arm: pass pristine kernel image to guest firmware over fw_cfg
hw/loader: split out load_image_gzipped_buffer()
arm: add fw_cfg to "virt" board
fw_cfg_mem: expose the "data_width" property with fw_cfg_init_mem_wide()
fw_cfg_mem: introduce the "data_width" property
exec: allows 8-byte accesses in subpage_ops
fw_cfg_mem: flip ctl_mem_ops and data_mem_ops to DEVICE_BIG_ENDIAN
fw_cfg_mem: max access size and region size are the same for data register
fw_cfg: move boards to fw_cfg_init_io() / fw_cfg_init_mem()
fw_cfg: hard separation between the MMIO and I/O port mappings
target-arm: add cpu feature EL3 to CPUs with Security Extensions
target-arm: Disable EL3 on unsupported machines
target-arm: Breakout integratorcp and versatilepb cpu init
target-arm: Set CPU has_el3 prop during virt init
target-arm: Enable CPU has_el3 prop during VE init
target-arm: Add arm_boot_info secure_boot control
target-arm: Add ARMCPU secure property
target-arm: Add feature unset function
target-arm: Add virt machine secure property
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- Conversion to tracepoints (Eric Auger)
- Fix memory listener address space (Frank Blaschka)
- Move to hw/vfio/ and split common vs pci (Eric Auger & Kim Phillips)
- Trivial error_report() fixes (Alex Williamson)
In addition to enabling S390 with the address space fix and updating
to use tracepoints rather than compile time debug, this set of patches
moves hw/misc/vfio.c to hw/vfio/ and paves the way for vfio-platform
support by splitting common functionality from PCI specific code.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=CRNj
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20141222.0' into staging
VFIO updates:
- Conversion to tracepoints (Eric Auger)
- Fix memory listener address space (Frank Blaschka)
- Move to hw/vfio/ and split common vs pci (Eric Auger & Kim Phillips)
- Trivial error_report() fixes (Alex Williamson)
In addition to enabling S390 with the address space fix and updating
to use tracepoints rather than compile time debug, this set of patches
moves hw/misc/vfio.c to hw/vfio/ and paves the way for vfio-platform
support by splitting common functionality from PCI specific code.
# gpg: Signature made Mon 22 Dec 2014 20:19:43 GMT using RSA key ID 3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg: aka "Alex Williamson <alex@shazbot.org>"
# gpg: aka "Alex Williamson <alwillia@redhat.com>"
# gpg: aka "Alex Williamson <alex.l.williamson@gmail.com>"
* remotes/awilliam/tags/vfio-update-20141222.0:
vfio: Cleanup error_report()s
hw/vfio: create common module
hw/vfio/pci: use name field in format strings
hw/vfio/pci: rename group_list into vfio_group_list
hw/vfio/pci: split vfio_get_device
hw/vfio/pci: Introduce VFIORegion
hw/vfio/pci: handle reset at VFIODevice
hw/vfio/pci: add type, name and group fields in VFIODevice
hw/vfio/pci: introduce minimalist VFIODevice with fd
hw/vfio/pci: generalize mask/unmask to any IRQ index
hw/vfio/pci: Rename VFIODevice into VFIOPCIDevice
vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio
vfio: fix adding memory listener to the right address space
vfio: migration to trace points
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The virt board already ensures mutual exclusion between -bios and -pflash
unit#0; we only need to set "bootinfo.firmware_loaded", introduced in the
previous patch, if either of those options was used to load the guest
firmware.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-12-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce the new boolean field "arm_boot_info.firmware_loaded". When this
field is set, it means that the portion of guest DRAM that the VCPU
normally starts to execute, or the pflash chip that the VCPU normally
starts to execute, has been populated by board-specific code with
full-fledged guest firmware code, before the board calls
arm_load_kernel().
Simultaneously, "arm_boot_info.firmware_loaded" guarantees that the board
code has set up the global firmware config instance, for arm_load_kernel()
to find with fw_cfg_find().
Guest kernel (-kernel) and guest firmware (-bios, -pflash) has always been
possible to specify independently on the command line. The following cases
should be considered:
nr -bios -pflash -kernel description
unit#0
-- ------- ------- ------- -------------------------------------------
1 present present absent Board code rejects this case, -bios and
present present present -pflash unit#0 are exclusive. Left intact
by this patch.
2 absent absent present Traditional kernel loading, with qemu's
minimal board firmware. Left intact by this
patch.
3 absent present absent Preexistent case for booting guest firmware
present absent absent loaded with -bios or -pflash. Left intact
by this patch.
4 absent absent absent Preexistent case for not loading any
firmware or kernel up-front. Left intact by
this patch.
5 present absent present New case introduced by this patch: kernel
absent present present image is passed to externally loaded
firmware in unmodified form, using fw_cfg.
An easy way to see that this patch doesn't interfere with existing cases
is to realize that "info->firmware_loaded" is constant zero at this point.
Which makes the "outer" condition unchanged, and the "inner" condition
(with the fw_cfg-related code) dead.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-11-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In the next patch we'd like to reuse the image decompression facility
without installing the output as a ROM at a specific guest-phys address.
In addition, expose LOAD_IMAGE_MAX_GUNZIP_BYTES, because that's a
straightforward "max_sz" argument for the new load_image_gzipped_buffer().
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-10-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
fw_cfg already supports exposure over MMIO (used in ppc/mac_newworld.c,
ppc/mac_oldworld.c, sparc/sun4m.c); we can easily add it to the "virt"
board.
Because MMIO access is slow on ARM KVM, we enable the guest, with
fw_cfg_init_mem_wide(), to transfer up to 8 bytes with a single access.
This has been measured to speed up transfers up to 7.5-fold, relative to
single byte data access, on both ARM KVM and x86_64 TCG.
The MMIO register block of fw_cfg is advertized in the device tree. As
base address we pick 0x09020000, which conforms to the comment preceding
"a15memmap": it falls in the miscellaneous device I/O range 128MB..256MB,
and it is aligned at 64KB. The DTB properties follow the documentation in
the Linux source file "Documentation/devicetree/bindings/arm/fw-cfg.txt".
fw_cfg automatically exports a number of files to the guest; for example,
"bootorder" (see fw_cfg_machine_reset()).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-9-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We rebase fw_cfg_init_mem() to the new function for compatibility with
current callers.
The behavior of the (big endian) multi-byte data reads is best shown
with a qtest session. Here, we are reading the first six bytes of
the UUID
$ arm-softmmu/qemu-system-arm -M virt -machine accel=qtest \
-qtest stdio -uuid 4600cb32-38ec-4b2f-8acb-81c6ea54f2d8
>>> writew 0x9020008 0x0200
<<< OK
>>> readl 0x9020000
<<< OK 0x000000004600cb32
Remember this is big endian. On big endian machines, it is stored
directly as 0x46 0x00 0xcb 0x32.
On a little endian machine, we have to first swap it, so that it becomes
0x32cb0046. When written to memory, it becomes 0x46 0x00 0xcb 0x32
again.
Reading byte-by-byte works too, of course:
>>> readb 0x9020000
<<< OK 0x0000000000000038
>>> readb 0x9020000
<<< OK 0x00000000000000ec
Here only a single byte is read at a time, so they are read in order
similar to the 1-byte data port that is already in PPC and SPARC
machines.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-8-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The "data_width" property is capable of changing the maximum valid access
size to the MMIO data register, and resizes the memory region similarly,
at device realization time.
The default value of "data_memwidth" is set so that we don't yet diverge
from "fw_cfg_data_mem_ops".
Most of the fw_cfg_mem users will stick with the default, and for them we
should continue using the statically allocated "fw_cfg_data_mem_ops". This
is beneficial for debugging because gdb can resolve pointers referencing
static objects to the names of those objects.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-7-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Otherwise fw_cfg accesses are split into 4-byte ones before they reach the
fw_cfg ops / handlers.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-6-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The standalone selector port (fw_cfg_ctl_mem_ops) is only used by big
endian guests to date (*), hence this change doesn't regress them. Paolo
and Alex have suggested / requested an explicit DEVICE_BIG_ENDIAN setting
here, for clarity.
(*) git grep -l fw_cfg_init_mem
hw/nvram/fw_cfg.c
hw/ppc/mac_newworld.c
hw/ppc/mac_oldworld.c
hw/sparc/sun4m.c
include/hw/nvram/fw_cfg.h
The standalone data port (fw_cfg_data_mem_ops) has max_access_size 1 (for
now), hence changing its endianness doesn't change behavior for existing
guest code.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-5-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Make it clear that the maximum access size to the MMIO data register
determines the full size of the memory region.
Currently the max access size is 1.
This patch doesn't change behavior.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-4-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This allows us to drop the fw_cfg_init() shim and to enforce the possible
mappings at compile time.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We are going to introduce a wide data register for fw_cfg, but only for
the MMIO mapped device. The wide data register will also require the
tightening of endiannesses.
However we don't want to touch the I/O port mapped fw_cfg device at all.
Currently QEMU provides a single fw_cfg device type that can handle both
I/O port and MMIO mapping. This flexibility is not actually exploited by
any board in the tree, but it renders restricting the above changes to
MMIO very hard.
Therefore, let's derive two classes from TYPE_FW_CFG: TYPE_FW_CFG_IO and
TYPE_FW_CFG_MEM.
TYPE_FW_CFG_IO incorporates the base I/O port and the related combined
MemoryRegion. (NB: all boards in the tree that use the I/O port mapped
flavor opt for the combined mapping; that is, when the data port overlays
the high address byte of the selector port. Therefore we can drop the
capability to map those I/O ports separately.)
TYPE_FW_CFG_MEM incorporates the base addresses for the MMIO selector and
data registers, and their respective MemoryRegions.
The "realize" and "props" class members are specific to each new derived
class, and become unused for the base class. The base class retains the
"reset" member and the "vmsd" member, because the reset functionality and
the set of migrated data are not specific to the mapping.
The new functions fw_cfg_init_io() and fw_cfg_init_mem() expose the
possible mappings in separation. For now fw_cfg_init() is retained as a
compatibility shim that enforces the above assumptions.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Disables the CPU ARM_FEATURE_EL3 featuere on machine models that can be
configured to use Cortex-A9, Cortex-A15, and ARM1176 but don't officially
support EL3. This preserves backwards compatibility.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-15-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit changes the integratorcp and versatilepb CPU initialization from
using the generic ARM cpu_arm_init function to doing it inline. This is
necessary in order to allow CPU configuration changes to occur between CPU
instance initialization and realization. Specifically, this change is in
preparation for disabling CPU EL3 support.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-14-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Adds setting of the CPU has_el3 property based on the virt machine
secure state property during initialization. This enables/disables EL3
state during start-up. Changes include adding an additional secure state
boolean during virt CPU initialization. Also disables the ARM secure boot
by default.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1418684992-8996-13-git-send-email-greg.bellows@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Adds setting of the CPU has_el3 property based on the vexpress machine
secure state property during initialization. This enables/disables EL3
state during start-up. Changes include adding an additional secure state
boolean during vexpress CPU initialization. Also enables the ARM secure boot
by default.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1418684992-8996-12-git-send-email-greg.bellows@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Adds the secure_boot boolean field to the arm_boot_info descriptor. This
fields is used to indicate whether Linux should boot into secure or non-secure
state if the ARM EL3 feature is enabled. The default is to leave the CPU in an
unaltered reset state. On EL3 enabled systems, the reset state is secure and
can be overridden by setting the added field to false.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-11-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Added a "has_el3" state property to the ARMCPU descriptor. This property
indicates whether the ARMCPU has security extensions enabled (EL3) or not.
By default it is disabled at this time.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-10-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add an unset_feature() function to compliment the set_feature() function. This
will be used to disable functions after they have been enabled during
initialization.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-9-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add "secure" virt machine specific property to allow override of the
default secure state configuration. By default, when using the QEMU
-kernel command line argument, virt machines boot into NS/SVC. When using
the QEMU -bios command line argument, virt machines boot into S/SVC.
The secure state can be changed from the default specifying the secure
state as a machine property. For example, the below command line would disable
security extensions on a -kernel Linux boot:
aarch64-softmmu/qemu-system-aarch64
-machine type=virt,secure=off
-kernel ...
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-8-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Switch virt qemu machine support to use the newer object type, class, and
instance model. Added virt TypeInfo with static registration along with virt
specific class and machine structs. Also added virt class initialization
method.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-7-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Change the Vexpress daughterboard initialization method to take a vexpress
machine state pointer instead of the daughterboard struct pointer. The machine
state now contains the daughterboard pointer.
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-6-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add "secure" Vexpress machine specific property to allow override of the
default secure state configuration. By default, when using the QEMU
-kernel command line argument, Vexpress machines boot into NS/SVC. When using
the QEMU -bios command line argument, Vexpress machines boot into S/SVC.
The secure state can be changed from the default specifying the secure
state as a machine property. For example, the below command line would disable
security extensions on a -kernel Linux boot:
aarch64-softmmu/qemu-system-aarch64
-machine type=vexpress-a15,secure=off
-kernel ...
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-5-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
