For vhost-user devices, qemu can migrate the virtio state, but not the
back-end's internal state. To do so, we need to be able to transfer
this internal state between front-end (qemu) and back-end.
At this point, this new feature is added for the purpose of virtio-fs
migration. Because virtiofsd's internal state will not be too large, we
believe it is best to transfer it as a single binary blob after the
streaming phase.
These are the additions to the protocol:
- New vhost-user protocol feature VHOST_USER_PROTOCOL_F_DEVICE_STATE
- SET_DEVICE_STATE_FD function: Front-end and back-end negotiate a file
descriptor over which to transfer the state.
- CHECK_DEVICE_STATE: After the state has been transferred through the
file descriptor, the front-end invokes this function to verify
success. There is no in-band way (through the file descriptor) to
indicate failure, so we need to check explicitly.
Once the transfer FD has been established via SET_DEVICE_STATE_FD
(which includes establishing the direction of transfer and migration
phase), the sending side writes its data into it, and the reading side
reads it until it sees an EOF. Then, the front-end will check for
success via CHECK_DEVICE_STATE, which on the destination side includes
checking for integrity (i.e. errors during deserialization).
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
Message-Id: <20231016134243.68248-5-hreitz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
In vDPA, GET_VRING_BASE does not stop the queried vring, which is why
SUSPEND was introduced so that the returned index would be stable. In
vhost-user, it does stop the vring, so under the same reasoning, it can
get away without SUSPEND.
Still, we do want to clarify that if the device is completely stopped,
i.e. all vrings are stopped, the back-end should cease to modify any
state relating to the guest. Do this by calling it "suspended".
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
Message-Id: <20231016134243.68248-4-hreitz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Currently, the vhost-user documentation says that rings are to be
initialized in a disabled state when VHOST_USER_F_PROTOCOL_FEATURES is
negotiated. However, by the time of feature negotiation, all rings have
already been initialized, so it is not entirely clear what this means.
At least the vhost-user-backend Rust crate's implementation interpreted
it to mean that whenever this feature is negotiated, all rings are to
put into a disabled state, which means that every SET_FEATURES call
would disable all rings, effectively halting the device. This is
problematic because the VHOST_F_LOG_ALL feature is also set or cleared
this way, which happens during migration. Doing so should not halt the
device.
Other implementations have interpreted this to mean that the device is
to be initialized with all rings disabled, and a subsequent SET_FEATURES
call that does not set VHOST_USER_F_PROTOCOL_FEATURES will enable all of
them. Here, SET_FEATURES will never disable any ring.
This interpretation does not suffer the problem of unintentionally
halting the device whenever features are set or cleared, so it seems
better and more reasonable.
We can clarify this in the documentation by making it explicit that the
enabled/disabled state is tracked even while the vring is stopped.
Every vring is initialized in a disabled state, and SET_FEATURES without
VHOST_USER_F_PROTOCOL_FEATURES simply becomes one way to enable all
vrings.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
Message-Id: <20231016134243.68248-3-hreitz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
GET_VRING_BASE does not mention that it stops the respective ring. Fix
that.
Furthermore, it is not fully clear what the "base offset" these
commands' documentation refers to is; an offset could be many things.
Be more precise and verbose about it, especially given that these
commands use different payload structures depending on whether the vring
is split or packed.
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
Message-Id: <20231016134243.68248-2-hreitz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* Rename ext_icboz to ext_zicboz
* Rename ext_icbom to ext_zicbom
* Rename ext_icsr to ext_zicsr
* Rename ext_ifencei to ext_zifencei
* Add RISC-V Virtual IRQs and IRQ filtering support
* Change default linux-user cpu to 'max'
* Update 'virt' machine core limit
* Add query-cpu-model-expansion API
* Rename epmp to smepmp and expose the extension
* Clear pmp/smepmp bits on reset
* Ignore pmp writes when RW=01
* Support zicntr/zihpm flags and disable support
* Correct CSR_MSECCFG operations
* Update mail address for Weiwei Li
* Update RISC-V vector crypto to ratified v1.0.0
* Clear the Ibex/OpenTitan SPI interrupts even if disabled
* Set the OpenTitan priv to 1.12.0
* Support discontinuous PMU counters
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Merge tag 'pull-riscv-to-apply-20231107' of https://github.com/alistair23/qemu into staging
Third RISC-V PR for 8.2
* Rename ext_icboz to ext_zicboz
* Rename ext_icbom to ext_zicbom
* Rename ext_icsr to ext_zicsr
* Rename ext_ifencei to ext_zifencei
* Add RISC-V Virtual IRQs and IRQ filtering support
* Change default linux-user cpu to 'max'
* Update 'virt' machine core limit
* Add query-cpu-model-expansion API
* Rename epmp to smepmp and expose the extension
* Clear pmp/smepmp bits on reset
* Ignore pmp writes when RW=01
* Support zicntr/zihpm flags and disable support
* Correct CSR_MSECCFG operations
* Update mail address for Weiwei Li
* Update RISC-V vector crypto to ratified v1.0.0
* Clear the Ibex/OpenTitan SPI interrupts even if disabled
* Set the OpenTitan priv to 1.12.0
* Support discontinuous PMU counters
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# gpg: Signature made Tue 07 Nov 2023 10:28:49 HKT
# gpg: using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65 9296 AF7C 9513 0C53 8013
* tag 'pull-riscv-to-apply-20231107' of https://github.com/alistair23/qemu: (49 commits)
docs/about/deprecated: Document RISC-V "pmu-num" deprecation
target/riscv: Add "pmu-mask" property to replace "pmu-num"
target/riscv: Use existing PMU counter mask in FDT generation
target/riscv: Don't assume PMU counters are continuous
target/riscv: Propagate error from PMU setup
target/riscv: cpu: Set the OpenTitan priv to 1.12.0
hw/ssi: ibex_spi_host: Clear the interrupt even if disabled
disas/riscv: Replace TABs with space
disas/riscv: Add support for vector crypto extensions
disas/riscv: Add rv_codec_vror_vi for vror.vi
disas/riscv: Add rv_fmt_vd_vs2_uimm format
target/riscv: Move vector crypto extensions to riscv_cpu_extensions
target/riscv: Expose Zvks[c|g] extnesion properties
target/riscv: Add cfg properties for Zvks[c|g] extensions
target/riscv: Expose Zvkn[c|g] extnesion properties
target/riscv: Add cfg properties for Zvkn[c|g] extensions
target/riscv: Expose Zvkb extension property
target/riscv: Replace Zvbb checking by Zvkb
target/riscv: Add cfg property for Zvkb extension
target/riscv: Expose Zvkt extension property
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* Support for non 64b IOVA space
* Introduction of a PCIIOMMUOps callback structure to ease future
extensions
* Fix for a buffer overrun when writing the VF token
* PPC cleanups preparing ground for IOMMUFD support
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Merge tag 'pull-vfio-20231106' of https://github.com/legoater/qemu into staging
vfio queue:
* Support for non 64b IOVA space
* Introduction of a PCIIOMMUOps callback structure to ease future
extensions
* Fix for a buffer overrun when writing the VF token
* PPC cleanups preparing ground for IOMMUFD support
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# gpg: Signature made Mon 06 Nov 2023 22:35:30 HKT
# gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [unknown]
# gpg: aka "Cédric Le Goater <clg@kaod.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* tag 'pull-vfio-20231106' of https://github.com/legoater/qemu: (22 commits)
vfio/common: Move vfio_host_win_add/del into spapr.c
vfio/spapr: Make vfio_spapr_create/remove_window static
vfio/container: Move spapr specific init/deinit into spapr.c
vfio/container: Move vfio_container_add/del_section_window into spapr.c
vfio/container: Move IBM EEH related functions into spapr_pci_vfio.c
util/uuid: Define UUID_STR_LEN from UUID_NONE string
util/uuid: Remove UUID_FMT_LEN
vfio/pci: Fix buffer overrun when writing the VF token
util/uuid: Add UUID_STR_LEN definition
hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps
test: Add some tests for range and resv-mem helpers
virtio-iommu: Consolidate host reserved regions and property set ones
virtio-iommu: Implement set_iova_ranges() callback
virtio-iommu: Record whether a probe request has been issued
range: Introduce range_inverse_array()
virtio-iommu: Introduce per IOMMUDevice reserved regions
util/reserved-region: Add new ReservedRegion helpers
range: Make range_compare() public
virtio-iommu: Rename reserved_regions into prop_resv_regions
vfio: Collect container iova range info
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This has been replaced by a "pmu-mask" property that provides much more
flexibility.
Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Acked-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Message-ID: <20231031154000.18134-6-rbradford@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The 'virt' RISC-V machine does not have a 8 core limit. The current
limit is set in include/hw/riscv/virt.h, VIRT_CPUS_MAX, set to 512 at
this moment.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1945
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20231020200247.334403-2-dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
On the vexpress-a9 board we try to map both RAM and flash to address 0,
as seen in "info mtree":
address-space: memory
0000000000000000-ffffffffffffffff (prio 0, i/o): system
0000000000000000-0000000003ffffff (prio 0, romd): alias vexpress.flashalias @vexpress.flash0 0000000000000000-0000000003ffffff
0000000000000000-0000000003ffffff (prio 0, ram): alias vexpress.lowmem @vexpress.highmem 0000000000000000-0000000003ffffff
0000000010000000-0000000010000fff (prio 0, i/o): arm-sysctl
0000000010004000-0000000010004fff (prio 0, i/o): pl041
(etc)
The flash "wins" and the RAM mapping is useless (but also harmless).
This happened as a result of commit 6ec1588e in 2014, which changed
"we always map the RAM to the low addresses for vexpress-a9" to "we
always map flash in the low addresses", but forgot to stop mapping
the RAM.
In real hardware, this low part of memory is remappable, both at
runtime by the guest writing to a control register, and configurably
as to what you get out of reset -- you can have the first flash
device, or the second, or the DDR2 RAM, or the external AXI bus
(which for QEMU means "nothing there"). In an ideal world we would
support that remapping both at runtime and via a machine property to
select the out-of-reset behaviour.
Pending anybody caring enough to implement the full remapping
behaviour:
* remove the useless mapped-but-inaccessible lowram MR
* document that QEMU doesn't support remapping of low memory
Fixes: 6ec1588e ("hw/arm/vexpress: Alias NOR flash at 0 for vexpress-a9")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1761
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20231103185602.875849-1-peter.maydell@linaro.org
This patch modifies pci_setup_iommu() to set PCIIOMMUOps
instead of setting PCIIOMMUFunc. PCIIOMMUFunc is used to
get an address space for a PCI device in vendor specific
way. The PCIIOMMUOps still offers this functionality. But
using PCIIOMMUOps leaves space to add more iommu related
vendor specific operations.
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Yi Sun <yi.y.sun@linux.intel.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Hervé Poussineau <hpoussin@reactos.org>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: BALATON Zoltan <balaton@eik.bme.hu>
Cc: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Cc: Jagannathan Raman <jag.raman@oracle.com>
Cc: Matthew Rosato <mjrosato@linux.ibm.com>
Cc: Eric Farman <farman@linux.ibm.com>
Cc: Halil Pasic <pasic@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Helge Deller <deller@gmx.de>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
[ clg: - refreshed on latest QEMU
- included hw/remote/iommu.c
- documentation update
- asserts in pci_setup_iommu()
- removed checks on iommu_bus->iommu_ops->get_address_space
- included Elroy PCI host (PA-RISC) ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
The dirty limit feature has been introduced since the 8.1
QEMU release but has not reflected in the document, add a
section for that.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <0f2b2c63fec22ea23e4926cdeb567b7a0ebd8152.1698847223.git.yong.huang@smartx.com>
* linux-user/elfload: Add missing arm64 hwcap values
* stellaris-gamepad: Convert to qdev
* docs/specs: Convert various txt docs to rST
* MAINTAINERS: Make sure that gicv3_internal.h is covered, too
* hw/arm/pxa2xx_gpio: Pass CPU using QOM link property
* hw/watchdog/wdt_imx2: Trace MMIO access and timer activity
* hw/misc/imx7_snvs: Trace MMIO access
* hw/misc/imx6_ccm: Convert DPRINTF to trace events
* hw/i2c/pm_smbus: Convert DPRINTF to trace events
* target/arm: Enable FEAT_MOPS insns in user-mode emulation
* linux-user: Report AArch64 hwcap2 fields above bit 31
* target/arm: Make FEAT_MOPS SET* insns handle Xs == XZR correctly
* target/arm: Fix SVE STR increment
* hw/char/stm32f2xx_usart: implement TX interrupts
* target/arm: Correctly propagate stage 1 BTI guarded bit in a two-stage walk
* xlnx-versal-virt: Add AMD/Xilinx TRNG device
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Merge tag 'pull-target-arm-20231102' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* linux-user/elfload: Add missing arm64 hwcap values
* stellaris-gamepad: Convert to qdev
* docs/specs: Convert various txt docs to rST
* MAINTAINERS: Make sure that gicv3_internal.h is covered, too
* hw/arm/pxa2xx_gpio: Pass CPU using QOM link property
* hw/watchdog/wdt_imx2: Trace MMIO access and timer activity
* hw/misc/imx7_snvs: Trace MMIO access
* hw/misc/imx6_ccm: Convert DPRINTF to trace events
* hw/i2c/pm_smbus: Convert DPRINTF to trace events
* target/arm: Enable FEAT_MOPS insns in user-mode emulation
* linux-user: Report AArch64 hwcap2 fields above bit 31
* target/arm: Make FEAT_MOPS SET* insns handle Xs == XZR correctly
* target/arm: Fix SVE STR increment
* hw/char/stm32f2xx_usart: implement TX interrupts
* target/arm: Correctly propagate stage 1 BTI guarded bit in a two-stage walk
* xlnx-versal-virt: Add AMD/Xilinx TRNG device
* tag 'pull-target-arm-20231102' of https://git.linaro.org/people/pmaydell/qemu-arm: (33 commits)
tests/qtest: Introduce tests for AMD/Xilinx Versal TRNG device
hw/arm: xlnx-versal-virt: Add AMD/Xilinx TRNG device
hw/misc: Introduce AMD/Xilix Versal TRNG device
target/arm: Correctly propagate stage 1 BTI guarded bit in a two-stage walk
hw/char/stm32f2xx_usart: Add more definitions for CR1 register
hw/char/stm32f2xx_usart: Update IRQ when DR is written
hw/char/stm32f2xx_usart: Extract common IRQ update code to update_irq()
target/arm: Fix SVE STR increment
target/arm: Make FEAT_MOPS SET* insns handle Xs == XZR correctly
linux-user: Report AArch64 hwcap2 fields above bit 31
target/arm: Enable FEAT_MOPS insns in user-mode emulation
hw/i2c/pm_smbus: Convert DPRINTF to trace events
hw/misc/imx6_ccm: Convert DPRINTF to trace events
hw/misc/imx7_snvs: Trace MMIO access
hw/watchdog/wdt_imx2: Trace timer activity
hw/watchdog/wdt_imx2: Trace MMIO access
hw/arm/pxa2xx_gpio: Pass CPU using QOM link property
MAINTAINERS: Make sure that gicv3_internal.h is covered, too
docs/specs/vmgenid: Convert to rST
docs/specs/vmcoreinfo: Convert to rST
...
Conflicts:
hw/input/stellaris_input.c
The qdev conversion in this pull request ("stellaris-gamepad: Convert
to qdev") eliminates the vmstate_register() call that was converted to
vmstate_register_any() in the conflicting migration pull request.
vmstate_register_any() is no longer necessary now that this device has
been converted to qdev, so take this pull request's version of
stellaris_gamepad.c over the previous pull request's
stellaris_input.c (the file was renamed).
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Convert docs/specs/vmgenid.txt to rST format.
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230927151205.70930-9-peter.maydell@linaro.org
Convert docs/specs/virt-ctlr.txt to rST format.
I added the name of the device to give readers a bit more idea
of which device we're actually documenting here.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230927151205.70930-7-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Convert docs/specs/standard-vga.txt to rST format.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230927151205.70930-6-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Convert docs/specs/pvpanic.txt to rST format.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230927151205.70930-5-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Convert docs/specs/ivshmem-spec.txt to rST format.
In converting, I have dropped the sections on the device's command
line interface and usage, as they are already covered by the
user-facing docs in system/devices/ivshmem.rst.
I have also removed the reference to Memnic, because the URL is dead
and a web search suggests that whatever this was it's pretty much
sunk without trace.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230927151205.70930-4-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Convert docs/specs/edu.txt to rST format.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20230927151205.70930-3-peter.maydell@linaro.org
Convert the docs/specs/vmw_pvscsi-spec.txt file to rST format.
This conversion includes some minor wordsmithing of the text
to fix some grammar nits.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20230927151205.70930-2-peter.maydell@linaro.org
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231020090731.28701-11-quintela@redhat.com>
- virtio-blk: use blk_io_plug_call() instead of notification BH
- mirror: allow switching from background to active mode
- qemu-img rebase: add compression support
- Fix locking in media change monitor commands
- Fix a few blockjob-related deadlocks when using iothread
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Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging
Block layer patches
- virtio-blk: use blk_io_plug_call() instead of notification BH
- mirror: allow switching from background to active mode
- qemu-img rebase: add compression support
- Fix locking in media change monitor commands
- Fix a few blockjob-related deadlocks when using iothread
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# gpg: Signature made Wed 01 Nov 2023 03:58:09 JST
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (27 commits)
iotests: add test for changing mirror's copy_mode
mirror: return mirror-specific information upon query
blockjob: query driver-specific info via a new 'query' driver method
qapi/block-core: turn BlockJobInfo into a union
qapi/block-core: use JobType for BlockJobInfo's type
mirror: implement mirror_change method
block/mirror: determine copy_to_target only once
block/mirror: move dirty bitmap to filter
block/mirror: set actively_synced even after the job is ready
blockjob: introduce block-job-change QMP command
virtio-blk: remove batch notification BH
virtio: use defer_call() in virtio_irqfd_notify()
util/defer-call: move defer_call() to util/
block: rename blk_io_plug_call() API to defer_call()
blockdev: mirror: avoid potential deadlock when using iothread
block: avoid potential deadlock during bdrv_graph_wrlock() in bdrv_close()
blockjob: drop AioContext lock before calling bdrv_graph_wrlock()
iotests: Test media change with iothreads
block: Fix locking in media change monitor commands
iotests: add tests for "qemu-img rebase" with compression
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If we rebase an image whose backing file has compressed clusters, we
might end up wasting disk space since the copied clusters are now
uncompressed. In order to have better control over this, let's add
"--compress" option to the "qemu-img rebase" command.
Note that this option affects only the clusters which are actually being
copied from the original backing file. The clusters which were
uncompressed in the target image will remain so.
Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Message-ID: <20230919165804.439110-8-andrey.drobyshev@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018115513.2163-6-quintela@redhat.com>
It is obsolete. It is better to use driver-mirror with NBD instead.
CC: Kevin Wolf <kwolf@redhat.com>
CC: Eric Blake <eblake@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Hanna Czenczek <hreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018115513.2163-5-quintela@redhat.com>
Use blocked-mirror with NBD instead.
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018115513.2163-4-quintela@redhat.com>
Use blockdev-mirror with NBD instead.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018115513.2163-3-quintela@redhat.com>
* Correct minor errors in Cortex-A710 definition
* Implement Neoverse N2 CPU model
* Refactor feature test functions out into separate header
* Fix syndrome for FGT traps on ERET
* Remove 'hw/arm/boot.h' includes from various header files
* pxa2xx: Refactoring/cleanup
* Avoid using 'first_cpu' when first ARM CPU is reachable
* misc/led: LED state is set opposite of what is expected
* hw/net/cadence_gen: clean up to use FIELD macros
* hw/net/cadence_gem: perform PHY access on write only
* hw/net/cadence_gem: enforce 32 bits variable size for CRC
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Merge tag 'pull-target-arm-20231027' of https://git-us.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* Correct minor errors in Cortex-A710 definition
* Implement Neoverse N2 CPU model
* Refactor feature test functions out into separate header
* Fix syndrome for FGT traps on ERET
* Remove 'hw/arm/boot.h' includes from various header files
* pxa2xx: Refactoring/cleanup
* Avoid using 'first_cpu' when first ARM CPU is reachable
* misc/led: LED state is set opposite of what is expected
* hw/net/cadence_gen: clean up to use FIELD macros
* hw/net/cadence_gem: perform PHY access on write only
* hw/net/cadence_gem: enforce 32 bits variable size for CRC
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# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 27 Oct 2023 23:37:49 JST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* tag 'pull-target-arm-20231027' of https://git-us.linaro.org/people/pmaydell/qemu-arm: (41 commits)
hw/net/cadence_gem: enforce 32 bits variable size for CRC
hw/net/cadence_gem: perform PHY access on write only
hw/net/cadence_gem: use FIELD to describe PHYMNTNC register fields
hw/net/cadence_gem: use FIELD to describe DESCONF6 register fields
hw/net/cadence_gem: use FIELD to describe IRQ register fields
hw/net/cadence_gem: use FIELD to describe [TX|RX]STATUS register fields
hw/net/cadence_gem: use FIELD to describe DMACFG register fields
hw/net/cadence_gem: use FIELD to describe NWCFG register fields
hw/net/cadence_gem: use FIELD to describe NWCTRL register fields
hw/net/cadence_gem: use FIELD for screening registers
hw/net/cadence_gem: use REG32 macro for register definitions
misc/led: LED state is set opposite of what is expected
hw/arm: Avoid using 'first_cpu' when first ARM CPU is reachable
hw/arm/pxa2xx: Realize PXA2XX_I2C device before accessing it
hw/intc/pxa2xx: Factor pxa2xx_pic_realize() out of pxa2xx_pic_init()
hw/intc/pxa2xx: Pass CPU reference using QOM link property
hw/intc/pxa2xx: Convert to Resettable interface
hw/pcmcia/pxa2xx: Inline pxa2xx_pcmcia_init()
hw/pcmcia/pxa2xx: Do not open-code sysbus_create_simple()
hw/pcmcia/pxa2xx: Realize sysbus device before accessing it
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
When we detect that we have broken backwards compatibility in a
released version, we can't do anything for that version. But once we
fix that bug on the next released version, we can "mitigate" that
problem when migrating to new versions to give a way out of that
machine until it does a hard reboot.
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018112827.1325-5-quintela@redhat.com>
Sometimes devices have different features depending of things outside
of qemu. For instance the kernel. Document how to handle that cases.
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018112827.1325-4-quintela@redhat.com>
State what are the requeriments to get migration working between qemu
versions. And once there explain how one is supposed to implement a
new feature/default value and not break migration.
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Acked-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018112827.1325-3-quintela@redhat.com>
Implement a model of the Neoverse N2 CPU. This is an Armv9.0-A
processor very similar to the Cortex-A710. The differences are:
* no FEAT_EVT
* FEAT_DGH (data gathering hint)
* FEAT_NV (not yet implemented in QEMU)
* Statistical Profiling Extension (not implemented in QEMU)
* 48 bit physical address range, not 40
* CTR_EL0.DIC = 1 (no explicit icache cleaning needed)
* PMCR_EL0.N = 6 (always 6 PMU counters, not 20)
Because it has 48-bit physical address support, we can use
this CPU in the sbsa-ref board as well as the virt board.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230915185453.1871167-3-peter.maydell@linaro.org
As we've seen in the past, it's useful for deprecating old machine
types to finally be able to get of legacy code or do other clean-ups
(see e.g. commit ea985d235b that was used to drop the PCI code in
the 128k bios binaries to free some precious space in those binaries).
So let's continue deprecating the oldest pc machine types. QEMU 2.3
has been released 8 years ago, so that's plenty of time since such
machine types have been used by default, thus deprecating pc-i440fx-2.0
up to pc-i440fx-2.3 should be fine nowadays.
Message-ID: <20231006075247.403364-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
infrastructure for vhost-vdpa shadow work
piix south bridge rework
reconnect for vhost-user-scsi
dummy ACPI QTG DSM for cxl
tests, cleanups, fixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio,pc,pci: features, cleanups
infrastructure for vhost-vdpa shadow work
piix south bridge rework
reconnect for vhost-user-scsi
dummy ACPI QTG DSM for cxl
tests, cleanups, fixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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# gpg: Signature made Sun 22 Oct 2023 02:18:43 PDT
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (62 commits)
intel-iommu: Report interrupt remapping faults, fix return value
MAINTAINERS: Add include/hw/intc/i8259.h to the PC chip section
vhost-user: Fix protocol feature bit conflict
tests/acpi: Update DSDT.cxl with QTG DSM
hw/cxl: Add QTG _DSM support for ACPI0017 device
tests/acpi: Allow update of DSDT.cxl
hw/i386/cxl: ensure maxram is greater than ram size for calculating cxl range
vhost-user: fix lost reconnect
vhost-user-scsi: start vhost when guest kicks
vhost-user-scsi: support reconnect to backend
vhost: move and rename the conn retry times
vhost-user-common: send get_inflight_fd once
hw/i386/pc_piix: Make PIIX4 south bridge usable in PC machine
hw/isa/piix: Implement multi-process QEMU support also for PIIX4
hw/isa/piix: Resolve duplicate code regarding PCI interrupt wiring
hw/isa/piix: Reuse PIIX3's PCI interrupt triggering in PIIX4
hw/isa/piix: Rename functions to be shared for PCI interrupt triggering
hw/isa/piix: Reuse PIIX3 base class' realize method in PIIX4
hw/isa/piix: Share PIIX3's base class with PIIX4
hw/isa/piix: Harmonize names of reset control memory regions
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The VHOST_USER_PROTOCOL_F_XEN_MMAP feature bit was defined in
f21e95ee97, which has been part of qemu's 8.1.0 release. However, it
seems it was never added to qemu's code, but it is well possible that it
is already used by different front-ends outside of qemu (i.e., Xen).
VHOST_USER_PROTOCOL_F_SHARED_OBJECT in contrast was added to qemu's code
in 1609476662, but never defined in the vhost-user specification. As a
consequence, both bits were defined to be 17, which cannot work.
Regardless of whether actual code or the specification should take
precedence, F_XEN_MMAP is already part of a qemu release, while
F_SHARED_OBJECT is not. Therefore, bump the latter to take number 18
instead of 17, and add this to the specification.
Take the opportunity to add at least a little note on the
VhostUserShared structure to the specification. This structure is
referenced by the new commands introduced in 1609476662, but was not
defined.
Fixes: 1609476662
("vhost-user: add shared_object msg")
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
Message-Id: <20231016083201.23736-1-hreitz@redhat.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
QEMU's PIIX3 implementation actually models the real PIIX4, but with different
PCI IDs. Usually, guests deal just fine with it. Still, in order to provide a
more consistent illusion to guests, allow QEMU's PIIX4 implementation to be used
in the PC machine.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-30-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add some basic examples for the definition of cpu topology
in s390x.
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Message-ID: <20231016183925.2384704-15-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
FEAT_HPMN0 is a small feature which defines that it is valid for
MDCR_EL2.HPMN to be set to 0, meaning "no PMU event counters provided
to an EL1 guest" (previously this setting was reserved). QEMU's
implementation almost gets HPMN == 0 right, but we need to fix
one check in pmevcntr_is_64_bit(). That is enough for us to
advertise the feature in the 'max' CPU.
(We don't need to make the behaviour conditional on feature
presence, because the FEAT_HPMN0 behaviour is within the range
of permitted UNPREDICTABLE behaviour for a non-FEAT_HPMN0
implementation.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230921185445.3339214-1-peter.maydell@linaro.org
Python PR:
- Use socketpair for all machine.py connections
- Support Python 3.12
- Switch iotests over to using raise-on-error QMP command interface
(Thank you very much, Vladimir!)
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Merge tag 'python-pull-request' of https://gitlab.com/jsnow/qemu into staging
Python Pullreq
Python PR:
- Use socketpair for all machine.py connections
- Support Python 3.12
- Switch iotests over to using raise-on-error QMP command interface
(Thank you very much, Vladimir!)
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# gpg: Signature made Fri 13 Oct 2023 15:09:13 EDT
# gpg: using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F 18F2 88A9 064D 1835 61EB
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* tag 'python-pull-request' of https://gitlab.com/jsnow/qemu: (25 commits)
python: use vm.cmd() instead of vm.qmp() where appropriate
scripts: add python_qmp_updater.py
tests/vm/basevm.py: use cmd() instead of qmp()
iotests.py: pause_job(): drop return value
iotests: drop some extra ** in qmp() call
iotests: drop some extra semicolons
iotests: refactor some common qmp result checks into generic pattern
iotests: add some missed checks of qmp result
iotests: QemuStorageDaemon: add cmd() method like in QEMUMachine.
python/machine.py: upgrade vm.cmd() method
python/qemu: rename command() to cmd()
python: rename QEMUMonitorProtocol.cmd() to cmd_raw()
scripts/cpu-x86-uarch-abi.py: use .command() instead of .cmd()
qmp_shell.py: _fill_completion() use .command() instead of .cmd()
python/qemu/qmp/legacy: cmd(): drop cmd_id unused argument
Python: Enable python3.12 support
configure: fix error message to say Python 3.8
python/qmp: remove Server.wait_closed() call for Python 3.12
Python/iotests: Add type hint for nbd module
python/machine: remove unused sock_dir argument
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* Deprecate the rdma code
* Fix flaky npcm7xx_timer test
* i2c-echo license statement and Kconfig switch
* Disable the failing riscv64-debian-cross CI job by default
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Merge tag 'pull-request-2023-10-12' of https://gitlab.com/thuth/qemu into staging
* Fix CVE-2023-1544
* Deprecate the rdma code
* Fix flaky npcm7xx_timer test
* i2c-echo license statement and Kconfig switch
* Disable the failing riscv64-debian-cross CI job by default
* tag 'pull-request-2023-10-12' of https://gitlab.com/thuth/qemu:
gitlab-ci: Disable the riscv64-debian-cross-container by default
MAINTAINERS: Add include/sysemu/qtest.h to the qtest section
hw/misc/Kconfig: add switch for i2c-echo
hw/misc/i2c-echo: add copyright/license note
tests/qtest: Fix npcm7xx_timer-test.c flaky test
hw/rdma: Deprecate the pvrdma device and the rdma subsystem
hw/pvrdma: Protect against buggy or malicious guest driver
Conflicts:
docs/about/deprecated.rst
Context conflict between RISC-V and RDMA deprecation.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Use a shorter name. We are going to move in iotests from qmp() to
command() where possible. But command() is longer than qmp() and don't
look better. Let's rename.
You can simply grep for '\.command(' and for 'def command(' to check
that everything is updated (command() in tests/docker/docker.py is
unrelated).
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-id: 20231006154125.1068348-6-vsementsov@yandex-team.ru
[vsementsov: also update three occurrences in
tests/avocado/machine_aspeed.py and keep r-b]
Signed-off-by: John Snow <jsnow@redhat.com>
* Add support for the max CPU
* Detect user choice in TCG
* Clear CSR values at reset and sync MPSTATE with host
* Fix the typo of inverted order of pmpaddr13 and pmpaddr14
* Split TCG/KVM accelerators from cpu.c
* Add extension properties for all cpus
* Replace GDB exit calls with proper shutdown
* Support KVM_GET_REG_LIST
* Remove RVG warning
* Use env_archcpu for better performance
* Deprecate capital 'Z' CPU properties
* Fix vfwmaccbf16.vf
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Merge tag 'pull-riscv-to-apply-20231012-1' of https://github.com/alistair23/qemu into staging
Second RISC-V PR for 8.2
* Add support for the max CPU
* Detect user choice in TCG
* Clear CSR values at reset and sync MPSTATE with host
* Fix the typo of inverted order of pmpaddr13 and pmpaddr14
* Split TCG/KVM accelerators from cpu.c
* Add extension properties for all cpus
* Replace GDB exit calls with proper shutdown
* Support KVM_GET_REG_LIST
* Remove RVG warning
* Use env_archcpu for better performance
* Deprecate capital 'Z' CPU properties
* Fix vfwmaccbf16.vf
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# gpg: Signature made Thu 12 Oct 2023 00:09:36 EDT
# gpg: using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65 9296 AF7C 9513 0C53 8013
* tag 'pull-riscv-to-apply-20231012-1' of https://github.com/alistair23/qemu: (54 commits)
target/riscv: Fix vfwmaccbf16.vf
target/riscv: deprecate capital 'Z' CPU properties
target/riscv: Use env_archcpu for better performance
target/riscv/tcg: remove RVG warning
target/riscv/kvm: support KVM_GET_REG_LIST
target/riscv/kvm: improve 'init_multiext_cfg' error msg
gdbstub: replace exit calls with proper shutdown for softmmu
hw/char: riscv_htif: replace exit calls with proper shutdown
hw/misc/sifive_test.c: replace exit calls with proper shutdown
softmmu: pass the main loop status to gdb "Wxx" packet
softmmu: add means to pass an exit code when requesting a shutdown
target/riscv/tcg-cpu.c: add extension properties for all cpus
target/riscv: add riscv_cpu_get_name()
target/riscv/cpu: move priv spec functions to tcg-cpu.c
target/riscv/cpu.c: export isa_edata_arr[]
target/riscv/tcg: move riscv_cpu_add_misa_properties() to tcg-cpu.c
target/riscv/cpu.c: make misa_ext_cfgs[] 'const'
target/riscv/tcg: introduce tcg_cpu_instance_init()
target/riscv/cpu.c: export set_misa()
target/riscv/kvm: do not use riscv_cpu_add_misa_properties()
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
At this moment there are eleven CPU extension properties that starts
with capital 'Z': Zifencei, Zicsr, Zihintntl, Zihintpause, Zawrs, Zfa,
Zfh, Zfhmin, Zve32f, Zve64f and Zve64d. All other extensions are named
with lower-case letters.
We want all properties to be named with lower-case letters since it's
consistent with the riscv-isa string that we create in the FDT. Having
these 11 properties to be exceptions can be confusing.
Deprecate all of them. Create their lower-case counterpart to be used as
maintained CPU properties. When trying to use any deprecated property a
warning message will be displayed, recommending users to switch to the
lower-case variant:
./build/qemu-system-riscv64 -M virt -cpu rv64,Zifencei=true --nographic
qemu-system-riscv64: warning: CPU property 'Zifencei' is deprecated. Please use 'zifencei' instead
This will give users some time to change their scripts before we remove
the capital 'Z' properties entirely.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20231009112817.8896-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The 'any' CPU type was introduced in commit dc5bd18fa5 ("RISC-V CPU
Core Definition"), being around since the beginning. It's not an easy
CPU to use: it's undocumented and its name doesn't tell users much about
what the CPU is supposed to bring. 'git log' doesn't help us either in
knowing what was the original design of this CPU type.
The closest we have is a comment from Alistair [1] where he recalls from
memory that the 'any' CPU is supposed to behave like the newly added
'max' CPU. He also suggested that the 'any' CPU should be removed.
The default CPUs are rv32 and rv64, so removing the 'any' CPU will have
impact only on users that might have a script that uses '-cpu any'.
And those users are better off using the default CPUs or the new 'max'
CPU.
We would love to just remove the code and be done with it, but one does
not simply remove a feature in QEMU. We'll put the CPU in quarantine
first, letting users know that we have the intent of removing it in the
future.
[1] https://lists.gnu.org/archive/html/qemu-devel/2023-07/msg02891.html
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230912132423.268494-13-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The previous links for the white paper and programmer's manual
are no longer available. Replace them with the new ones.
Signed-off-by: Jianlin Li <ljianlin99@gmail.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Make VNC use the default backend again if one is defined.
The recently introduced support for disabling the VNC audio
extension is still used, in case no default backend exists.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is now possible to specify the options for the default audio device
using -audio, so there is no need anymore to use a fake -audiodev option.
Remove the fall back to QTAILQ_FIRST(&audio_states), instead remember the
AudioState that was created from default_audiodevs and use that one.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Match what is done for other options, for example -monitor, and also
the behavior of QEMU 8.1 (see the "legacy_config" variable). Require
the user to specify a backend if one is specified on the command line.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The softmmu/ directory contains files specific to system
emulation. Rename it as system/. Update meson rules, the
MAINTAINERS file and all the documentation and comments.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004090629.37473-14-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Finish the convertion started with commit de6cd7599b
("meson: Replace softmmu_ss -> system_ss"). If the
$target_type is 'system', then use the target_system_arch[]
source set :)
Mechanical change doing:
$ sed -i -e s/target_softmmu_arch/target_system_arch/g \
$(git grep -l target_softmmu_arch)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004090629.37473-13-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004090629.37473-6-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Allow a client to request a subset of negotiated meta contexts. For
example, a client may ask to use a single connection to learn about
both block status and dirty bitmaps, but where the dirty bitmap
queries only need to be performed on a subset of the disk; forcing the
server to compute that information on block status queries in the rest
of the disk is wasted effort (both at the server, and on the amount of
traffic sent over the wire to be parsed and ignored by the client).
Qemu as an NBD client never requests to use more than one meta
context, so it has no need to use block status payloads. Testing this
instead requires support from libnbd, which CAN access multiple meta
contexts in parallel from a single NBD connection; an interop test
submitted to the libnbd project at the same time as this patch
demonstrates the feature working, as well as testing some corner cases
(for example, when the payload length is longer than the export
length), although other corner cases (like passing the same id
duplicated) requires a protocol fuzzer because libnbd is not wired up
to break the protocol that badly.
This also includes tweaks to 'qemu-nbd --list' to show when a server
is advertising the capability, and to the testsuite to reflect the
addition to that output.
Of note: qemu will always advertise the new feature bit during
NBD_OPT_INFO if extended headers have alreay been negotiated
(regardless of whether any NBD_OPT_SET_META_CONTEXT negotiation has
occurred); but for NBD_OPT_GO, qemu only advertises the feature if
block status is also enabled (that is, if the client does not
negotiate any contexts, then NBD_CMD_BLOCK_STATUS cannot be used, so
the feature is not advertised).
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <20230925192229.3186470-26-eblake@redhat.com>
[eblake: fix logic to reject unnegotiated contexts]
Signed-off-by: Eric Blake <eblake@redhat.com>
Time to start supporting clients that request extended headers. Now
we can finally reach the code added across several previous patches.
Even though the NBD spec has been altered to allow us to accept
NBD_CMD_READ larger than the max payload size (provided our response
is a hole or broken up over more than one data chunk), we are not
planning to take advantage of that, and continue to cap NBD_CMD_READ
to 32M regardless of header size.
For NBD_CMD_WRITE_ZEROES and NBD_CMD_TRIM, the block layer already
supports 64-bit operations without any effort on our part. For
NBD_CMD_BLOCK_STATUS, the client's length is a hint, and the previous
patch took care of implementing the required
NBD_REPLY_TYPE_BLOCK_STATUS_EXT.
We do not yet support clients that want to do request payload
filtering of NBD_CMD_BLOCK_STATUS; that will be added in later
patches, but is not essential for qemu as a client since qemu only
requests the single context base:allocation.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230925192229.3186470-19-eblake@redhat.com>
vdpa:
shadow vq vlan support
net migration with cvq
cxl:
support emulating 4 HDM decoders
serial number extended capability
virtio:
hared dma-buf
Fixes, cleanups all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio,pci: features, cleanups
vdpa:
shadow vq vlan support
net migration with cvq
cxl:
support emulating 4 HDM decoders
serial number extended capability
virtio:
hared dma-buf
Fixes, cleanups all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (53 commits)
libvhost-user: handle shared_object msg
vhost-user: add shared_object msg
hw/display: introduce virtio-dmabuf
util/uuid: add a hash function
virtio: remove unused next argument from virtqueue_split_read_next_desc()
virtio: remove unnecessary thread fence while reading next descriptor
virtio: use shadow_avail_idx while checking number of heads
libvhost-user.c: add assertion to vu_message_read_default
pcie_sriov: unregister_vfs(): fix error path
hw/i386/pc: improve physical address space bound check for 32-bit x86 systems
amd_iommu: Fix APIC address check
vdpa net: follow VirtIO initialization properly at cvq isolation probing
vdpa net: stop probing if cannot set features
vdpa net: fix error message setting virtio status
hw/pci-bridge/cxl-upstream: Add serial number extended capability support
hw/cxl: Support 4 HDM decoders at all levels of topology
hw/cxl: Fix and use same calculation for HDM decoder block size everywhere
hw/cxl: Add utility functions decoder interleave ways and target count.
hw/cxl: Push cxl_decoder_count_enc() and cxl_decode_ig() into .c
vdpa net: zero vhost_vdpa iova_tree pointer at cleanup
...
Conflicts:
hw/core/machine.c
Context conflict with commit 314e0a84cd ("hw/core: remove needless
includes") because it removed an adjacent #include.
Add three new vhost-user protocol
`VHOST_USER_BACKEND_SHARED_OBJECT_* messages`.
These new messages are sent from vhost-user
back-ends to interact with the virtio-dmabuf
table in order to add or remove themselves as
virtio exporters, or lookup for virtio dma-buf
shared objects.
The action taken in the front-end depends
on the type stored in the virtio shared
object hash table.
When the table holds a pointer to a vhost
backend for a given UUID, the front-end sends
a VHOST_USER_GET_SHARED_OBJECT to the
backend holding the shared object.
The messages can only be sent after successfully
negotiating a new VHOST_USER_PROTOCOL_F_SHARED_OBJECT
vhost-user protocol feature bit.
Finally, refactor code to send response message so
that all common parts both for the common REPLY_ACK
case, and other data responses, can call it and
avoid code repetition.
Signed-off-by: Albert Esteve <aesteve@redhat.com>
Message-Id: <20231002065706.94707-4-aesteve@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This build option has been deprecated since 8.0.
Remove all CONFIG_GPROF code that depends on that,
including one errant check using TARGET_GPROF.
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These have been deprecated for a long time, and the introduction of
-audio in 7.1.0 has cemented the new way of specifying an audio backend's
parameters. However, there is still a need for simple configuration
of the audio backend in the desktop case; therefore, if no audiodev is
passed to audio_init(), go through a bunch of simple Audiodev* structures
and pick the first that can be initialized successfully.
The only QEMU_AUDIO_* option that is left in, waiting for a better idea,
is QEMU_AUDIO_DRV=none which is used by qtest.
Remove all the parsing code, including the concept of "can_be_default"
audio drivers: now that audio_prio_list[] is only used in a single place,
wav can be excluded directly in that function.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If there is no audiodev do not send the audio ack in response to
VNC_ENCODING_AUDIO, so that clients aren't told audio exists, and
immediately drop the client if they try to send any audio control messages
when audio is not advertised.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are the last users of the 128K SeaBIOS blob in the i440FX family.
Removing them allows us to drop PCI support from the 128K blob,
thus making it easier to update SeaBIOS to newer versions.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Enable FEAT_MOPS on the AArch64 'max' CPU, and add it to
the list of features we implement.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-13-peter.maydell@linaro.org
FEAT_HBC (Hinted conditional branches) provides a new instruction
BC.cond, which behaves exactly like the existing B.cond except
that it provides a hint to the branch predictor about the
likely behaviour of the branch.
Since QEMU does not implement branch prediction, we can treat
this identically to B.cond.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The loads-and-stores documentation includes git grep regexes to find
occurrences of the various functions. Some of these regexes have
errors, typically failing to escape the '?', '(' and ')' when they
should be metacharacters (since these are POSIX basic REs). We also
weren't consistent about whether to have a ':' on the end of the
line introducing the list of regexes in each section.
Fix the errors.
The following shell rune will complain about any REs in the
file which don't have any matches in the codebase:
for re in $(sed -ne 's/ - ``\(\\<.*\)``/\1/p' docs/devel/loads-stores.rst); do git grep -q "$re" || echo "no matches for re $re"; done
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230904161703.3996734-1-peter.maydell@linaro.org
resettable_class_set_parent_phases() was mistakenly called
resettable_class_set_parent_reset_phases() in some places.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
These crossed with the previous fix to get rid of examples
using aarch64 for which support is not yet upstream.
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1892
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Using the same style as elsewhere for topology / topo
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Link: https://lore.kernel.org/r/20230519085802.2106900-2-lizhijian@cn.fujitsu.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Let's add some details about VM templating, focusing on the VM memory
configuration only.
There is much more to VM templating (VM state? block devices?), but I leave
that as future work.
Message-ID: <20230906120503.359863-10-david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
"-mem-path" corresponds to "memory-backend-file,share=off" and,
therefore, creates a private COW mapping of the file. For multi-proces
QEMU, we need proper shared file-backed memory.
Let's make that clearer.
Message-ID: <20230906120503.359863-9-david@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
VHOST_USER_GPU_DMABUF_SCANOUT2 is defined as a message with all the
contents of VHOST_USER_GPU_DMABUF_SCANOUT plus the dmabuf modifiers
which were ommitted.
The VHOST_USER_GPU_PROTOCOL_F_DMABUF2 protocol feature is defined as a
way to check whether this new message is supported or not.
Signed-off-by: Erico Nunes <ernunes@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20230714153900.475857-2-ernunes@redhat.com>
* Small downtime optimisation for VFIO migration
* P2P support for VFIO migration
* Introduction of a save_prepare() handler to fail VFIO migration
* Fix on DMA logging ranges calculation for OVMF enabling dynamic window
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Merge tag 'pull-vfio-20230911' of https://github.com/legoater/qemu into staging
vfio queue:
* Small downtime optimisation for VFIO migration
* P2P support for VFIO migration
* Introduction of a save_prepare() handler to fail VFIO migration
* Fix on DMA logging ranges calculation for OVMF enabling dynamic window
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# Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* tag 'pull-vfio-20230911' of https://github.com/legoater/qemu:
vfio/common: Separate vfio-pci ranges
vfio/migration: Block VFIO migration with background snapshot
vfio/migration: Block VFIO migration with postcopy migration
migration: Add .save_prepare() handler to struct SaveVMHandlers
migration: Move more initializations to migrate_init()
vfio/migration: Fail adding device with enable-migration=on and existing blocker
migration: Add migration prefix to functions in target.c
vfio/migration: Allow migration of multiple P2P supporting devices
vfio/migration: Add P2P support for VFIO migration
vfio/migration: Refactor PRE_COPY and RUNNING state checks
qdev: Add qdev_add_vm_change_state_handler_full()
sysemu: Add prepare callback to struct VMChangeStateEntry
vfio/migration: Move from STOP_COPY to STOP in vfio_save_cleanup()
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
VFIO migration uAPI defines an optional intermediate P2P quiescent
state. While in the P2P quiescent state, P2P DMA transactions cannot be
initiated by the device, but the device can respond to incoming ones.
Additionally, all outstanding P2P transactions are guaranteed to have
been completed by the time the device enters this state.
The purpose of this state is to support migration of multiple devices
that might do P2P transactions between themselves.
Add support for P2P migration by transitioning all the devices to the
P2P quiescent state before stopping or starting the devices. Use the new
VMChangeStateHandler prepare_cb to achieve that behavior.
This will allow migration of multiple VFIO devices if all of them
support P2P migration.
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Tested-by: YangHang Liu <yanghliu@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230831232441.66020-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The cortex-a710 is a first generation ARMv9.0-A processor.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230831232441.66020-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Document the 'compression_type' option for qcow2, and mention that
streamOptimized vmdk supports compression, too.
Reported-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230901102430.23856-1-kwolf@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Implement the QARMA3 cryptographic algorithm for PAC calculation.
Implement a cpu feature to select the algorithm and document it.
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-6-richard.henderson@linaro.org
Message-Id: <20230609172324.982888-4-aaron@os.amperecomputing.com>
[rth: Merge cpu feature addition from another patch.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
docs/multi-thread-compression.txt uses parameter names with
underscores instead of dashes. Wrong since day one.
docs/rdma.txt, tests/qemu-iotests/181, and tests/qtest/test-hmp.c are
wrong the same way since commit cbde7be900 (v6.0.0). Hard to see,
as test-hmp doesn't check whether the commands work, and iotest 181
appears to be unaffected.
Fixes: 263170e679 (docs: Add a doc about multiple thread compression)
Fixes: cbde7be900 (migrate: remove QMP/HMP commands for speed, downtime and cache size)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Universal Flash Storage (UFS) is a high-performance mass storage device
with a serial interface. It is primarily used as a high-performance
data storage device for embedded applications.
This commit contains code for UFS device to be recognized
as a UFS PCI device.
Patches to handle UFS logical unit and Transfer Request will follow.
Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 10232660d462ee5cd10cf673f1a9a1205fc8276c.1693980783.git.jeuk20.kim@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* target/i386: fix BQL handling of the legacy FERR interrupts
* target/i386: fix memory operand size for CVTPS2PD
* target/i386: Add support for AMX-COMPLEX in CPUID enumeration
* compile plugins on Darwin
* configure and meson cleanups
* drop mkvenv support for Python 3.7 and Debian10
* add wrap file for libblkio
* tweak KVM stubs
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* only build util/async-teardown.c when system build is requested
* target/i386: fix BQL handling of the legacy FERR interrupts
* target/i386: fix memory operand size for CVTPS2PD
* target/i386: Add support for AMX-COMPLEX in CPUID enumeration
* compile plugins on Darwin
* configure and meson cleanups
* drop mkvenv support for Python 3.7 and Debian10
* add wrap file for libblkio
* tweak KVM stubs
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# gpg: Signature made Thu 07 Sep 2023 07:44:37 EDT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (51 commits)
docs/system/replay: do not show removed command line option
subprojects: add wrap file for libblkio
sysemu/kvm: Restrict kvm_pc_setup_irq_routing() to x86 targets
sysemu/kvm: Restrict kvm_has_pit_state2() to x86 targets
sysemu/kvm: Restrict kvm_get_apic_state() to x86 targets
sysemu/kvm: Restrict kvm_arch_get_supported_cpuid/msr() to x86 targets
target/i386: Restrict declarations specific to CONFIG_KVM
target/i386: Allow elision of kvm_hv_vpindex_settable()
target/i386: Allow elision of kvm_enable_x2apic()
target/i386: Remove unused KVM stubs
target/i386/cpu-sysemu: Inline kvm_apic_in_kernel()
target/i386/helper: Restrict KVM declarations to system emulation
hw/i386/fw_cfg: Include missing 'cpu.h' header
hw/i386/pc: Include missing 'cpu.h' header
hw/i386/pc: Include missing 'sysemu/tcg.h' header
Revert "mkvenv: work around broken pip installations on Debian 10"
mkvenv: assume presence of importlib.metadata
Python: Drop support for Python 3.7
configure: remove dead code
meson: list leftover CONFIG_* symbols
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-trivial@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There are no config-host.mak symbols anymore that are needed in
config-host.h; the only symbols that are included in config_host_data via
the foreach loop are:
- CONFIG_DEFAULT_TARGETS, which is not used by C code.
- CONFIG_TCG and CONFIG_TCG_INTERPRETER, which are not part of config-host.mak
So, list these two symbols explicitly.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
