x-igd-gms is used for overriding DSM region size in GGC register in
both config space and MMIO BAR0, by default host value is used.
There is no need to emulate it in default case.
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-9-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
On Gen9 and later IGD devices, GMS 0xf0 to 0xfe represents 4MB to 60MB
pre-allocated memory size in 4MB increments. Allow users overriding
GMS with these values.
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-8-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
As the presence of OpRegion is used to detect IGD device now, and
guest driver usually depends on OpRegion to work. Enable OpRegion
on IGD devices by default for out-of-the-box passthrough experience
(except pre-boot display output), especially for libvirt users.
Example of IGD passthrough with libvirt:
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address domain="0x0000" bus="0x00" slot="0x02" function="0x0"/>
</source>
<rom file="/path/to/igd/rom"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x0"/>
</hostdev>
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-7-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
The Intel GVT-g backend `kvmgt` always emulates OpRegion for vGPU,
make sure the OpRegion is present for enabling access to it
automatically later.
Also, hotplugging GVT-g vGPU is now always disallowed regardless of
OpRegion to prevent potential issues. Intel has never claimed support
for GVT-g hotplugging.
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-6-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Check the vendor and device ID on GVT-g mdev to ensure it is a supported
device [1]. This extra check is required for automatically enabling
OpRegion access later.
Note that Cherryview and Gemini Lake are marked as supported here since
current code cannot distinguish them with other Gen8 and Gen9 devices.
Since mdev cannot be created on these devices, this has no functional
impact.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/i915/intel_gvt.c?h=v6.14#n52
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-5-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
There is currently no straightforward way to distinguish if a Intel
graphics device is IGD or discrete GPU. However, only IGD devices have
OpRegion. Use the presence of VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION
to identify IGD devices. Still, OpRegion on hotplugged IGD device is
not supported.
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-4-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
ASLS register represents the base address of OpRegion, and it is
programmed with HPA. In IGD passthrough scenario, it needs to be
reprogrammed with GPA by guest firmware. To prevent guest accessing
wrong memory range, ASLS should always be emulated and cleared.
In GVT-g scenario, emulating ASLS is unnecessary as access is handled
by kvmgt backend [1].
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/i915/gvt/cfg_space.c?h=v6.14#n295
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-3-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Intel only provides legacy VBIOS for IGD up to Gen9, and there is no
CSM support on later devices. Additionally, Seabios can only handle
32-bit BDSM register used until Gen9. Since legacy mode requires VGA
capability, restrict it to Gen6 through Gen9 devices.
Link: https://lore.kernel.org/qemu-devel/20250325172239.27926-1-tomitamoeko@gmail.com/T/
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Reviewed-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250505170305.23622-2-tomitamoeko@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Replace the proliferation of exit labels in vfio_container_connect with
conditionals for cleaning each piece of state. No functional change.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cedric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/1746195760-101443-3-git-send-email-steven.sistare@oracle.com
[ clg: vfio_attach_discard_disable() -> vfio_container_attach_discard_disable() ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Define a helper to set ram discard disable, generate error messages,
and cleanup on failure. The second vfio_ram_block_discard_disable
call site now performs VFIO_GROUP_UNSET_CONTAINER immediately on failure,
instead of relying on the close of the container fd to do so in the kernel,
but this is equivalent.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cedric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/1746195760-101443-2-git-send-email-steven.sistare@oracle.com
[ clg: vfio_attach_discard_disable() -> vfio_container_attach_discard_disable() ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
- Replace cpu_list() definition by CPUClass::list_cpus() callback
- Remove few MO_TE definitions on Hexagon / X86 targets
- Remove target_ulong uses in ARMMMUFaultInfo and ARM CPUWatchpoint
- Remove DEVICE_HOST_ENDIAN definition
- Evaluate TARGET_BIG_ENDIAN at compile time and use target_needs_bswap() more
- Rename target_words_bigendian() as target_big_endian()
- Convert target_name() and target_cpu_type() to TargetInfo API
- Constify QOM TypeInfo class_data/interfaces fields
- Get default_cpu_type calling machine_class_default_cpu_type()
- Correct various uses of GLibCompareDataFunc prototype
- Simplify ARM/Aarch64 gdb_get_core_xml_file() handling a bit
- Move device tree files in their own pc-bios/dtb/ subdir
- Correctly check strchrnul() symbol availability on macOS SDK
- Move target-agnostic methods out of cpu-target.c and accel-target.c
- Unmap canceled USB XHCI packet
- Use deposit/extract API in designware model
- Fix MIPS16e translation
- Few missing header fixes
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Merge tag 'single-binary-20250425' of https://github.com/philmd/qemu into staging
Various patches loosely related to single binary work:
- Replace cpu_list() definition by CPUClass::list_cpus() callback
- Remove few MO_TE definitions on Hexagon / X86 targets
- Remove target_ulong uses in ARMMMUFaultInfo and ARM CPUWatchpoint
- Remove DEVICE_HOST_ENDIAN definition
- Evaluate TARGET_BIG_ENDIAN at compile time and use target_needs_bswap() more
- Rename target_words_bigendian() as target_big_endian()
- Convert target_name() and target_cpu_type() to TargetInfo API
- Constify QOM TypeInfo class_data/interfaces fields
- Get default_cpu_type calling machine_class_default_cpu_type()
- Correct various uses of GLibCompareDataFunc prototype
- Simplify ARM/Aarch64 gdb_get_core_xml_file() handling a bit
- Move device tree files in their own pc-bios/dtb/ subdir
- Correctly check strchrnul() symbol availability on macOS SDK
- Move target-agnostic methods out of cpu-target.c and accel-target.c
- Unmap canceled USB XHCI packet
- Use deposit/extract API in designware model
- Fix MIPS16e translation
- Few missing header fixes
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# gpg: Signature made Fri 25 Apr 2025 11:26:55 EDT
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# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE
* tag 'single-binary-20250425' of https://github.com/philmd/qemu: (58 commits)
qemu: Convert target_name() to TargetInfo API
accel: Move target-agnostic code from accel-target.c -> accel-common.c
accel: Make AccelCPUClass structure target-agnostic
accel: Include missing 'qemu/accel.h' header in accel-internal.h
accel: Implement accel_init_ops_interfaces() for both system/user mode
cpus: Move target-agnostic methods out of cpu-target.c
cpus: Replace CPU_RESOLVING_TYPE -> target_cpu_type()
qemu: Introduce target_cpu_type()
qapi: Rename TargetInfo structure as QemuTargetInfo
hw/microblaze: Evaluate TARGET_BIG_ENDIAN at compile time
hw/mips: Evaluate TARGET_BIG_ENDIAN at compile time
target/xtensa: Evaluate TARGET_BIG_ENDIAN at compile time
target/mips: Check CPU endianness at runtime using env_is_bigendian()
accel/kvm: Use target_needs_bswap()
linux-user/elfload: Use target_needs_bswap()
target/hexagon: Include missing 'accel/tcg/getpc.h'
accel/tcg: Correct list of included headers in tcg-stub.c
system/kvm: make functions accessible from common code
meson: Use osdep_prefix for strchrnul()
meson: Share common C source prefixes
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Mechanical change using gsed, then style manually adapted
to pass checkpatch.pl script.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250424194905.82506-4-philmd@linaro.org>
vfio_cpr_register_container and vfio_cpr_unregister_container are container
scoped function. Calling them for each device attaching/detaching would
corrupt CPR reboot notifier list, i.e., when two VFIO devices are attached
to same container and have same notifier registered twice.
Fixes: d9fa4223b3 ("vfio: register container for cpr")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250424063355.3855174-1-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Because we handle host IOMMU device creation in each container backend,
we know which type name to use, so hiod_typename property is useless
now, just remove it.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250423072824.3647952-6-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
realize() is now moved after attachment, do the same for hiod creation.
Introduce a new function vfio_device_hiod_create_and_realize() to do
them all in one go.
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250423072824.3647952-5-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
To match the change for IOMMUFD backend, move realize() after attachment
for legacy backend too.
Suggested-by: Cédric Le Goater <clg@redhat.com>
Suggested-by: Donald Dutile <ddutile@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250423072824.3647952-4-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Previously device attaching depends on realize() getting host IOMMU
capabilities to check dirty tracking support.
Now we have a separate call to ioctl(IOMMU_GET_HW_INFO) to get host
IOMMU capabilities and check that for dirty tracking support, there
is no dependency any more, move realize() call after attachment
succeed.
Suggested-by: Cédric Le Goater <clg@redhat.com>
Suggested-by: Donald Dutile <ddutile@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250423072824.3647952-3-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Currently we depend on .realize() calling iommufd_backend_get_device_info()
to get IOMMU capabilities and check for dirty page tracking support.
By make a extra separate call, this dependency is removed. This happens
only during device attach, it's not a hot path.
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250423072824.3647952-2-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
"hw/vfio/vfio-common.h" has been emptied of most of its declarations
by the previous changes and the only declarations left are related to
VFIODevice. Rename it to "hw/vfio/vfio-device.h" and make the
necessary adjustments.
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-36-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This hides the MemoryListener implementation and makes the code common
to both IOMMU backends, legacy and IOMMUFD.
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-35-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
File "common.c" has been emptied of most of its definitions by the
previous changes and the only definitions left are related to the VFIO
MemoryListener handlers. Rename it to "listener.c" and introduce its
associated "vfio-listener.h" header file for the declarations.
Cleanup a little the includes while at it.
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-33-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Rename to vfio_container_query_dirty_bitmap() to be consistent with
the VFIO container routine naming scheme.
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-32-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Use the prefix 'vfio_container_devices_' to reflect the routine simply
loops over the container's device list.
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-31-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Also rename vfio_devices_all_device_dirty_tracking_started() while at
it and use the prefix 'vfio_container_devices_' for routines simply
looping over the container's device list.
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-30-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
vfio_container_query_dirty_bitmap() is only used in "container-base.c".
Also, rename to vfio_container_iommu_query_dirty_bitmap() to reflect it
is using the VFIO IOMMU backend device ->query_dirty_bitmap() handler.
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-29-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
vfio_devices_query_dirty_bitmap() is only used in "container-base.c".
Also, rename to vfio_container_devices_query_dirty_bitmap() to reflect
with the prefix 'vfio_container_devices_' that it simply loops over
the container's device list.
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-28-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Routines of common.c :
vfio_devices_all_dirty_tracking_started
vfio_devices_all_device_dirty_tracking
vfio_devices_query_dirty_bitmap
vfio_get_dirty_bitmap
are all related to dirty page tracking directly at the container level
or at the container device level. Naming is a bit confusing. We will
propose new names in the following changes.
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-27-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Pass-through devices of a VM are not necessarily in the same group and
all groups/address_spaces need to be scanned when the machine is
reset. Commit f16f39c3fc ("Implement PCI hot reset") introduced a VM
reset handler for this purpose. Move it under device.c
Also reintroduce the comment which explained the context and was lost
along the way.
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-26-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Gather all CPR related declarations into "vfio-cpr.h" to reduce exposure
of VFIO internals in "hw/vfio/vfio-common.h". These were introduced in
commit d9fa4223b3 ("vfio: register container for cpr").
Order file list in meson.build while at it.
Cc: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Steve Sistare <steven.sistare@oracle.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-22-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Move all VFIODevice related routines of "helpers.c" into a new "device.c"
file.
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-21-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
VFIOAddressSpace is a common object used by VFIOContainerBase which is
declared in "hw/vfio/vfio-container-base.h". Move the VFIOAddressSpace
related services into "container-base.c".
While at it, rename :
vfio_get_address_space -> vfio_address_space_get
vfio_put_address_space -> vfio_address_space_put
to better reflect the namespace these routines belong to.
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-15-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
