hw/i386: Fix 'use-legacy-x86-rom' property compatibility

Commit 350785d41d8b ("ramfb: Add property to control if load the
romfile") introduced the `use-legacy-x86-rom` property for the
`vfio-pci-noh

hw/i386: Fix 'use-legacy-x86-rom' property compatibility

Commit 350785d41d8b ("ramfb: Add property to control if load the
romfile") introduced the `use-legacy-x86-rom` property for the
`vfio-pci-nohotplug` device, allowing control over VGA BIOS ROM
loading. However, the property compatibility setting was incorrectly
applied to the `vfio-pci` device instead, which causes all `vfio-pci`
devices to fail to load. This change fixes the issue by ensuring the
property is set on the correct device.

Fixes: d5fcf0d960d8 ("hw/i386: Add the ramfb romfile compatibility")
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Shaoqin Huang <shahuang@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250723062714.1245826-1-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

show more ...

Merge tag 'display-20250718-pull-request' of https://gitlab.com/kraxel/qemu into staging

Load ramfb vgabios on x86 only.

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Merge tag 'display-20250718-pull-request' of https://gitlab.com/kraxel/qemu into staging

Load ramfb vgabios on x86 only.

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# gpg: Signature made Fri 18 Jul 2025 15:43:09 EDT
# gpg: using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138

* tag 'display-20250718-pull-request' of https://gitlab.com/kraxel/qemu:
hw/i386: Add the ramfb romfile compatibility
vfio: Move the TYPE_* to hw/vfio/types.h
ramfb: Add property to control if load the romfile

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Conflicts:
hw/core/machine.c
Context conflict because the vfio-pci
"x-migration-load-config-after-iter" was added recently.

show more ...

hw/i386: Add the ramfb romfile compatibility

ramfb is a sysbus device so it can only used for machine types where it
is explicitly enabled:

# git grep machine_class_allow_dynamic_sysbus_dev.*TYPE

hw/i386: Add the ramfb romfile compatibility

ramfb is a sysbus device so it can only used for machine types where it
is explicitly enabled:

# git grep machine_class_allow_dynamic_sysbus_dev.*TYPE_RAMFB_DEVICE
hw/arm/virt.c: machine_class_allow_dynamic_sysbus_dev(mc,
TYPE_RAMFB_DEVICE);
hw/i386/microvm.c: machine_class_allow_dynamic_sysbus_dev(mc,
TYPE_RAMFB_DEVICE);
hw/i386/pc_piix.c: machine_class_allow_dynamic_sysbus_dev(m,
TYPE_RAMFB_DEVICE);
hw/i386/pc_q35.c: machine_class_allow_dynamic_sysbus_dev(m,
TYPE_RAMFB_DEVICE);
hw/loongarch/virt.c: machine_class_allow_dynamic_sysbus_dev(mc,
TYPE_RAMFB_DEVICE);
hw/riscv/virt.c: machine_class_allow_dynamic_sysbus_dev(mc,
TYPE_RAMFB_DEVICE);

So these six are the only machine types we have to worry about.

The three x86 machine types (pc, q35, microvm) will actually use the rom
(when booting with seabios).

For arm/riscv/loongarch virt we want to disable the rom.

This patch sets ramfb romfile option to false by default, except for x86
machines types (pc, q35, microvm) which need the rom file when booting
with seabios and machine types <= 10.0 (handling the case of arm virt,
for compat reasons).

At the same time, set the "use-legacy-x86-rom" property to true on those
historical versioned machine types in order to avoid the memory layout
being changed.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Shaoqin Huang <shahuang@redhat.com>
Message-ID: <20250717100941.2230408-4-shahuang@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

show more ...

Merge tag 'accel-20250715' of https://github.com/philmd/qemu into staging

Accelerators patches

- Unify x86/arm hw/xen/arch_hvm.h header
- Move non-system-specific 'accel/accel-ops.h' and 'accel-cpu

Merge tag 'accel-20250715' of https://github.com/philmd/qemu into staging

Accelerators patches

- Unify x86/arm hw/xen/arch_hvm.h header
- Move non-system-specific 'accel/accel-ops.h' and 'accel-cpu-ops.h' to accel/
- Move KVM definitions qapi/accelerator.json
- Add @qom-type field to CpuInfoFast QAPI structure
- Display CPU model name in 'info cpus' HMP command
- Introduce @x-accel-stats QMP command
- Add 'info accel' on HMP
- Improve qemu_add_vm_change_state_handler*() docstring
- Extract TCG statistic related code to tcg-stats.c
- Implement AccelClass::get_[vcpu]_stats() handlers for TCG and HVF
- Do not dump NaN in TCG statistics
- Revert incomplete "accel/tcg: Unregister the RCU before exiting RR thread"

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# gpg: Signature made Tue 15 Jul 2025 15:44:05 EDT
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE

* tag 'accel-20250715' of https://github.com/philmd/qemu:
system/runstate: Document qemu_add_vm_change_state_handler_prio* in hdr
system/runstate: Document qemu_add_vm_change_state_handler()
accel/hvf: Implement AccelClass::get_vcpu_stats() handler
accel/tcg: Implement AccelClass::get_stats() handler
accel/tcg: Propagate AccelState to dump_accel_info()
accel/system: Add 'info accel' on human monitor
accel/system: Introduce @x-accel-stats QMP command
accel/tcg: Extract statistic related code to tcg-stats.c
Revert "accel/tcg: Unregister the RCU before exiting RR thread"
accel: Extract AccelClass definition to 'accel/accel-ops.h'
accel: Rename 'system/accel-ops.h' -> 'accel/accel-cpu-ops.h'
accel/tcg: Do not dump NaN statistics
hw/core/machine: Display CPU model name in 'info cpus' command
qapi/machine: Add @qom-type field to CpuInfoFast structure
qapi/accel: Move definitions related to accelerators in their own file
hw/arm/xen-pvh: Remove unnecessary 'hw/xen/arch_hvm.h' header
hw/xen/arch_hvm: Unify x86 and ARM variants

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Conflicts:
qapi/machine.json
Commit 0462da9d6b19 ("qapi: remove trivial "Returns:" sections")
removed trivial "Returns:". This caused a conflict with the move from
machine.json to accelerator.json.

show more ...

Merge tag 'pull-vfio-20250715' of https://github.com/legoater/qemu into staging

vfio queue:

* Fixed vfio-user issues reported by Coverity
* Tweaked VFIO migration with multifd to support aarch64
*

Merge tag 'pull-vfio-20250715' of https://github.com/legoater/qemu into staging

vfio queue:

* Fixed vfio-user issues reported by Coverity
* Tweaked VFIO migration with multifd to support aarch64
* Introduced a property to override a device PCI class code

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# gpg: Signature made Tue 15 Jul 2025 11:22:08 EDT
# gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
# gpg: aka "Cédric Le Goater <clg@kaod.org>" [full]
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1

* tag 'pull-vfio-20250715' of https://github.com/legoater/qemu:
vfio/migration: Max in-flight VFIO device state buffers size limit
vfio/migration: Add x-migration-load-config-after-iter VFIO property
vfio/pci: Introduce x-pci-class-code option
hw/vfio-user: fix use of uninitialized variable
hw/vfio-user: wait for proxy close correctly
hw/vfio: fix region fd initialization
hw/vfio-user: add Cédric Le Goater as a maintainer

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

Merge tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

UI-related for 10.1

- [PATCH v3 0/2] ui/vnc: Do not copy z_stream
- [PATCH v6 0/7] ui/spice: Enable gl=on option

Merge tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

UI-related for 10.1

- [PATCH v3 0/2] ui/vnc: Do not copy z_stream
- [PATCH v6 0/7] ui/spice: Enable gl=on option for non-local or remote clients
- [PATCH v6 0/1] Allow injection of virtio-gpu EDID name
- [PATCH 0/2] ui/gtk: Add keep-aspect-ratio and scale option

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# gpg: Signature made Tue 15 Jul 2025 02:32:06 EDT
# gpg: using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5

* tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
tpm: "qemu -tpmdev help" should return success
ui/gtk: Add scale option
ui/gtk: Add keep-aspect-ratio option
hw/display: Allow injection of virtio-gpu EDID name
ui/spice: Blit the scanout texture if its memory layout is not linear
ui/spice: Create a new texture with linear layout when gl=on is specified
ui/console-gl: Add a helper to create a texture with linear memory layout
ui/spice: Add an option to submit gl_draw requests at fixed rate
ui/spice: Add an option for users to provide a preferred video codec
ui/spice: Enable gl=on option for non-local or remote clients
ui/egl-helpers: Error check the fds in egl_dmabuf_export_texture()
ui/vnc: Introduce the VncWorker type
ui/vnc: Do not copy z_stream

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

hw/core/machine: Display CPU model name in 'info cpus' command

Display the CPU model in 'info cpus'. Example before:

$ qemu-system-aarch64 -M xlnx-versal-virt -S -monitor stdio
QEMU 10.0.0 monito

hw/core/machine: Display CPU model name in 'info cpus' command

Display the CPU model in 'info cpus'. Example before:

$ qemu-system-aarch64 -M xlnx-versal-virt -S -monitor stdio
QEMU 10.0.0 monitor - type 'help' for more information
(qemu) info cpus
* CPU #0: thread_id=42924
CPU #1: thread_id=42924
CPU #2: thread_id=42924
CPU #3: thread_id=42924
(qemu) q

and after:

$ qemu-system-aarch64 -M xlnx-versal-virt -S -monitor stdio
QEMU 10.0.50 monitor - type 'help' for more information
(qemu) info cpus
* CPU #0: thread_id=42916 model=cortex-a72
CPU #1: thread_id=42916 model=cortex-a72
CPU #2: thread_id=42916 model=cortex-r5f
CPU #3: thread_id=42916 model=cortex-r5f
(qemu)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Tested-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20250715090624.52377-3-philmd@linaro.org>

show more ...

qapi/machine: Add @qom-type field to CpuInfoFast structure

Knowing the QOM type name of a CPU can be useful,
in particular to infer its model name.

Reviewed-by: Richard Henderson <richard.henderson

qapi/machine: Add @qom-type field to CpuInfoFast structure

Knowing the QOM type name of a CPU can be useful,
in particular to infer its model name.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20250715090624.52377-2-philmd@linaro.org>

show more ...

qapi/accel: Move definitions related to accelerators in their own file

Extract KVM definitions from machine.json to accelerator.json.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Revie

qapi/accel: Move definitions related to accelerators in their own file

Extract KVM definitions from machine.json to accelerator.json.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703105540.67664-29-philmd@linaro.org>

show more ...

vfio/migration: Add x-migration-load-config-after-iter VFIO property

This property allows configuring whether to start the config load only
after all iterables were loaded, during non-iterables load

vfio/migration: Add x-migration-load-config-after-iter VFIO property

This property allows configuring whether to start the config load only
after all iterables were loaded, during non-iterables loading phase.
Such interlocking is required for ARM64 due to this platform VFIO
dependency on interrupt controller being loaded first.

The property defaults to AUTO, which means ON for ARM, OFF for other
platforms.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Link: https://lore.kernel.org/qemu-devel/0e03c60dbc91f9a9ba2516929574df605b7dfcb4.1752589295.git.maciej.szmigiero@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

show more ...

hw/core/sysbus: Introduce sysbus_mmio_map_name() helper

Some sysbus devices have conditional mmio regions. This
happens for instance with the hw/acpi/ged device. In that case
it becomes difficult to

hw/core/sysbus: Introduce sysbus_mmio_map_name() helper

Some sysbus devices have conditional mmio regions. This
happens for instance with the hw/acpi/ged device. In that case
it becomes difficult to predict which index a specific MMIO
region corresponds to when one needs to mmio map the region.
Introduce a new helper that takes the name of the region instead
of its index. If the region is not found this returns -1.
Otherwise it maps the corresponding index and returns this latter.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20250714080639.2525563-31-eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

show more ...

qemu: Convert target_words_bigendian() to TargetInfo API

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard He

qemu: Convert target_words_bigendian() to TargetInfo API

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250708215320.70426-6-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

show more ...

qemu/target-info: Factor target_arch() out

To keep "qemu/target-info.h" self-contained to native
types, declare target_arch() -- which returns a QAPI
type -- in "qemu/target-info-qapi.h".

No logica

qemu/target-info: Factor target_arch() out

To keep "qemu/target-info.h" self-contained to native
types, declare target_arch() -- which returns a QAPI
type -- in "qemu/target-info-qapi.h".

No logical change.

Keeping native types in "qemu/target-info.h" is necessary
to keep building tests such tests/tcg/plugins/mem.c, as
per the comment added in commit ecbcc9ead2f ("tests/tcg:
add a system test to check memory instrumentation"):

/*
* plugins should not include anything from QEMU aside from the
* API header. However as this is a test plugin to exercise the
* internals of QEMU and we want to avoid needless code duplication we
* do so here. bswap.h is pretty self-contained although it needs a
* few things provided by compiler.h.
*/

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20250708215320.70426-3-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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hw/display: Allow injection of virtio-gpu EDID name

Thanks to 72d277a7, 1ed2cb32, and others, EDID (Extended Display
Identification Data) is propagated by QEMU such that a virtual display
presents l

hw/display: Allow injection of virtio-gpu EDID name

Thanks to 72d277a7, 1ed2cb32, and others, EDID (Extended Display
Identification Data) is propagated by QEMU such that a virtual display
presents legitimate metadata (e.g., name, serial number, preferred
resolutions, etc.) to its connected guest.

This change adds the ability to specify the EDID name for a particular
virtio-vga display. Previously, every virtual display would have the same
name: "QEMU Monitor". Now, we can inject names of displays in order to test
guest behavior that is specific to display names. We provide the ability to
inject the display name from the frontend since this is guest visible
data. Furthermore, this makes it clear where N potential display outputs
would get their name from (which will be added in a future change).

Note that we have elected to use a struct here for output data for
extensibility - we intend to add per-output fields like resolution in a
future change.

It should be noted that EDID names longer than 12 bytes will be truncated
per spec (I think?).

Testing: verified that when I specified 2 outputs for a virtio-gpu with
edid_name set, the names matched those that I configured with my vnc
display.

-display vnc=localhost:0,id=aaa,display=vga,head=0 \
-display vnc=localhost:1,id=bbb,display=vga,head=1 \
-device '{"driver":"virtio-vga",
"max_outputs":2,
"id":"vga",
"outputs":[
{
"name":"AAA"
},
{
"name":"BBB"
}
]}'

Signed-off-by: Andrew Keesler <ankeesler@google.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20250709121126.2946088-2-ankeesler@google.com>

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acpi: Add machine option to disable SPCR table

The ACPI SPCR (Serial Port Console Redirection) table allows firmware
to specify a preferred serial console device to the operating system.
On ARM64 sy

acpi: Add machine option to disable SPCR table

The ACPI SPCR (Serial Port Console Redirection) table allows firmware
to specify a preferred serial console device to the operating system.
On ARM64 systems, Linux by default respects this table: even if the
kernel command line does not include a hardware serial console (e.g.,
"console=ttyAMA0"), the kernel still register the serial device
referenced by SPCR as a printk console.

While this behavior is standard-compliant, it can lead to situations
where guest console behavior is influenced by platform firmware rather
than user-specified configuration. To make guest console behavior more
predictable and under user control, this patch introduces a machine
option to explicitly disable SPCR table exposure:

-machine spcr=off

By default, the option is enabled (spcr=on), preserving existing
behavior. When disabled, QEMU will omit the SPCR table from the guest's
ACPI namespace, ensuring that only consoles explicitly declared in the
kernel command line are registered.

Signed-off-by: Li Chen <chenl311@chinatelecom.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Message-Id: <20250528105404.457729-2-me@linux.beauty>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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qdev-properties: Add DEFINE_PROP_ON_OFF_AUTO_BIT64()

DEFINE_PROP_ON_OFF_AUTO_BIT64() corresponds to DEFINE_PROP_ON_OFF_AUTO()
as DEFINE_PROP_BIT64() corresponds to DEFINE_PROP_BOOL(). The difference

qdev-properties: Add DEFINE_PROP_ON_OFF_AUTO_BIT64()

DEFINE_PROP_ON_OFF_AUTO_BIT64() corresponds to DEFINE_PROP_ON_OFF_AUTO()
as DEFINE_PROP_BIT64() corresponds to DEFINE_PROP_BOOL(). The difference
is that DEFINE_PROP_ON_OFF_AUTO_BIT64() exposes OnOffAuto instead of
bool.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20250530-vdpa-v1-1-5af4109b1c19@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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