Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* scripts: dump stdin on meson-buildoptions error
* rust: introduce qemu_api::cell::Opaque<>
* rust: express pinning requirem

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* scripts: dump stdin on meson-buildoptions error
* rust: introduce qemu_api::cell::Opaque<>
* rust: express pinning requirements for timers
* rust: hpet: decode HPET registers into enums
* rust: cell: add full example of declaring a SysBusDevice
* rust: qom: remove operations on &mut

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# gpg: Signature made Sun 09 Mar 2025 18:29:16 HKT
# 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: (25 commits)
rust: pl011: Allow NULL chardev argument to pl011_create()
meson.build: default to -gsplit-dwarf for debug info
rust: qom: remove operations on &mut
rust: cell: add full example of declaring a SysBusDevice
rust: hpet: decode HPET registers into enums
rust: pl011: pass around registers::Data
rust: pl011: switch to safe chardev operation
rust: pl011: clean up visibilities of callbacks
rust: pl011: move register definitions out of lib.rs
rust: chardev: provide basic bindings to character devices
rust: bindings: remove more unnecessary Send/Sync impls
rust: chardev: wrap Chardev with Opaque<>
rust: memory: wrap MemoryRegion with Opaque<>
rust: sysbus: wrap SysBusDevice with Opaque<>
rust: hpet: do not access fields of SysBusDevice
rust: qdev: wrap Clock and DeviceState with Opaque<>
rust: qom: wrap Object with Opaque<>
rust: irq: wrap IRQState with Opaque<>
rust: timer: wrap QEMUTimer with Opaque<> and express pinning requirements
rust: hpet: embed Timer without the Option and Box indirection
...

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

show more ...

rust: sysbus: wrap SysBusDevice with Opaque<>

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rust: hpet: do not access fields of SysBusDevice

Fields of SysBusDevice must only be accessed with the BQL taken. Add
a wrapper that verifies that.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.co

rust: hpet: do not access fields of SysBusDevice

Fields of SysBusDevice must only be accessed with the BQL taken. Add
a wrapper that verifies that.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

rust: irq: wrap IRQState with Opaque<>

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* qom: Use command line syntax for default values in help
* i386: support cache topology with machine's configuration
* rust:

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* qom: Use command line syntax for default values in help
* i386: support cache topology with machine's configuration
* rust: fix duplicate symbols from monitor-fd.c
* rust: add module to convert between success/-errno and io::Result
* rust: move class_init implementation from trait to method
* pvg: configuration improvements
* kvm guestmemfd: replace assertion with error
* riscv: cleanups
* target/i386/hvf: cleanups to emulation
* target/i386: add Zhaoxin and Yongfeng CPU model

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# gpg: Signature made Wed 26 Feb 2025 16:56:43 HKT
# 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: (34 commits)
target/i386: Mask CMPLegacy bit in CPUID[0x80000001].ECX for Zhaoxin CPUs
target/i386: Introduce Zhaoxin Yongfeng CPU model
target/i386: Add CPUID leaf 0xC000_0001 EDX definitions
target/i386: Add support for Zhaoxin CPU vendor identification
target/riscv: move 128-bit check to TCG realize
target/riscv: remove unused macro DEFINE_CPU
i386/cpu: add has_caches flag to check smp_cache configuration
i386/pc: Support cache topology in -machine for PC machine
i386/cpu: Update cache topology with machine's configuration
i386/cpu: Support module level cache topology
rust: qom: get rid of ClassInitImpl
rust: pl011, qemu_api tests: do not use ClassInitImpl
rust: qom: add ObjectImpl::CLASS_INIT
rust: add SysBusDeviceImpl
rust: add IsA bounds to QOM implementation traits
target/i386/hvf: drop some dead code
target/i386/hvf: move and rename simulate_{rdmsr, wrmsr}
target/i386/hvf: move and rename {load, store}_regs
target/i386/hvf: use x86_segment in x86_decode.c
target/i386/hvf: fix the declaration of hvf_handle_io
...

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

show more ...

rust: qom: get rid of ClassInitImpl

Complete the conversion from the ClassInitImpl trait to class_init() methods.
This will provide more freedom to split the qemu_api crate in separate parts.

Revie

rust: qom: get rid of ClassInitImpl

Complete the conversion from the ClassInitImpl trait to class_init() methods.
This will provide more freedom to split the qemu_api crate in separate parts.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

rust: add SysBusDeviceImpl

The only function, right now, is to ensure that anything with a
SysBusDeviceClass class is a SysBusDevice.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paol

rust: add SysBusDeviceImpl

The only function, right now, is to ensure that anything with a
SysBusDeviceClass class is a SysBusDevice.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* rust: more qdev bindings
* rust: HPET device model with timer and GPIO bindings
* rust: small cleanups and fixes; run docte

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* rust: more qdev bindings
* rust: HPET device model with timer and GPIO bindings
* rust: small cleanups and fixes; run doctests during CI
* ui/sdl2: reenable the SDL2 Windows keyboard hook procedure

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# gpg: Signature made Thu 13 Feb 2025 07:50:49 EST
# 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: (27 commits)
ui/sdl2: reenable the SDL2 Windows keyboard hook procedure
rust: fix doctests
rust: vmstate: remove redundant link targets
rust: qemu_api: add a documentation header for all modules
i386: enable rust hpet for pc when rust is enabled
rust/timer/hpet: add qom and qdev APIs support
rust/timer/hpet: add basic HPET timer and HPETState
rust/timer/hpet: define hpet_fw_cfg
rust: add bindings for timer
rust: add bindings for memattrs
rust: add bindings for gpio_{in|out} initialization
rust/irq: Add a helper to convert [InterruptSource] to pointer
rust/qdev: add the macro to define bit property
i386/fw_cfg: move hpet_cfg definition to hpet.c
rust: pl011: convert pl011_create to safe Rust
rust: chardev, qdev: add bindings to qdev_prop_set_chr
rust: irq: define ObjectType for IRQState
rust: bindings for MemoryRegionOps
rust: bindings: add Send and Sync markers for types that have bindings
rust: qdev: switch from legacy reset to Resettable
...

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

show more ...

rust: qemu_api: add a documentation header for all modules

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rust: pl011: convert pl011_create to safe Rust

Not a major change but, as a small but significant step in creating
qdev bindings, show how pl011_create can be written without "unsafe"
calls (apart f

rust: pl011: convert pl011_create to safe Rust

Not a major change but, as a small but significant step in creating
qdev bindings, show how pl011_create can be written without "unsafe"
calls (apart from converting pointers to references).

This also provides a starting point for creating Error** bindings.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

rust: bindings for MemoryRegionOps

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* rust: miscellaneous changes
* target/i386: small code generation improvements
* target/i386: various cleanups and fixes
* c

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* rust: miscellaneous changes
* target/i386: small code generation improvements
* target/i386: various cleanups and fixes
* cpu: remove env->nr_cores

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# gpg: Signature made Fri 10 Jan 2025 17:34:48 EST
# 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: (38 commits)
i386/cpu: Set and track CPUID_EXT3_CMP_LEG in env->features[FEAT_8000_0001_ECX]
i386/cpu: Set up CPUID_HT in x86_cpu_expand_features() instead of cpu_x86_cpuid()
cpu: Remove nr_cores from struct CPUState
i386/cpu: Hoist check of CPUID_EXT3_TOPOEXT against threads_per_core
i386/cpu: Track a X86CPUTopoInfo directly in CPUX86State
i386/topology: Introduce helpers for various topology info of different level
i386/topology: Update the comment of x86_apicid_from_topo_ids()
i386/cpu: Drop cores_per_pkg in cpu_x86_cpuid()
i386/cpu: Drop the variable smp_cores and smp_threads in x86_cpu_pre_plug()
i386/cpu: Extract a common fucntion to setup value of MSR_CORE_THREAD_COUNT
target/i386/kvm: Replace ARRAY_SIZE(msr_handlers) with KVM_MSR_FILTER_MAX_RANGES
target/i386/kvm: Clean up error handling in kvm_arch_init()
target/i386/kvm: Return -1 when kvm_msr_energy_thread_init() fails
target/i386/kvm: Clean up return values of MSR filter related functions
target/i386/confidential-guest: Fix comment of x86_confidential_guest_kvm_type()
target/i386/kvm: Drop workaround for KVM_X86_DISABLE_EXITS_HTL typo
target/i386/kvm: Only save/load kvmclock MSRs when kvmclock enabled
target/i386/kvm: Remove local MSR_KVM_WALL_CLOCK and MSR_KVM_SYSTEM_TIME definitions
target/i386/kvm: Add feature bit definitions for KVM CPUID
i386/cpu: Mark avx10_version filtered when prefix is NULL
...

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

show more ...

rust: qdev: expose inherited methods to subclasses of SysBusDevice

The ObjectDeref trait now provides all the magic that is required to fake
inheritance. Replace the "impl SysBusDevice" block of qe

rust: qdev: expose inherited methods to subclasses of SysBusDevice

The ObjectDeref trait now provides all the magic that is required to fake
inheritance. Replace the "impl SysBusDevice" block of qemu_api::sysbus
with a trait, so that sysbus_init_irq() can be invoked as "self.init_irq()"
without any intermediate upcast.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

rust: pl011: only leave embedded object initialization in instance_init

Leave IRQ and MMIO initialization to instance_post_init. In Rust the
two callbacks are more distinct, because only instance_p

rust: pl011: only leave embedded object initialization in instance_init

Leave IRQ and MMIO initialization to instance_post_init. In Rust the
two callbacks are more distinct, because only instance_post_init has a
fully initialized object available.

While at it, add a wrapper for sysbus_init_mmio so that accesses to
the SysBusDevice correctly use shared references.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* qdev: second part of Property cleanups
* rust: second part of QOM rework
* rust: callbacks wrapper
* rust: pl011 bugfixes
*

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* qdev: second part of Property cleanups
* rust: second part of QOM rework
* rust: callbacks wrapper
* rust: pl011 bugfixes
* kvm: cleanup errors in kvm_convert_memory()

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# gpg: Signature made Thu 19 Dec 2024 13:39:05 EST
# 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: (42 commits)
rust: pl011: simplify handling of the FIFO enabled bit in LCR
rust: pl011: fix migration stream
rust: pl011: extend registers to 32 bits
rust: pl011: fix break errors and definition of Data struct
rust: pl011: always use reset() method on registers
rust: pl011: match break logic of C version
rust: pl011: fix declaration of LineControl bits
target/i386: Reset TSCs of parked vCPUs too on VM reset
kvm: consistently return 0/-errno from kvm_convert_memory
rust: qemu-api: add a module to wrap functions and zero-sized closures
rust: qom: add initial subset of methods on Object
rust: qom: add casting functionality
rust: tests: allow writing more than one test
bql: add a "mock" BQL for Rust unit tests
rust: re-export C types from qemu-api submodules
rust: rename qemu-api modules to follow C code a bit more
rust: qom: add possibility of overriding unparent
rust: qom: put class_init together from multiple ClassInitImpl<>
Constify all opaque Property pointers
hw/core/qdev-properties: Constify Property argument to PropertyInfo.print
...

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

show more ...

rust: qom: add casting functionality

Add traits that let client cast typecast safely between object types.
In particular, an upcast is compile-time guaranteed to succeed, and a
YOLO C-style downcast

rust: qom: add casting functionality

Add traits that let client cast typecast safely between object types.
In particular, an upcast is compile-time guaranteed to succeed, and a
YOLO C-style downcast must be marked as unsafe.

The traits are based on an IsA<> trait that declares what
is a subclass of what, which is an idea taken from glib-rs
(https://docs.rs/glib/latest/glib/object/trait.IsA.html).
The four primitives are also taken from there
(https://docs.rs/glib/latest/glib/object/trait.Cast.html). However,
the implementation of casting itself is a bit different and uses the
Deref trait.

This removes some pointer arithmetic from the pl011 device; it is also a
prerequisite for the definition of methods, so that they can be invoked
on all subclass structs. This will use the IsA<> trait to detect the
structs that support the methods.

glib also has a "monadic" casting trait which could be implemented on
Option (as in https://docs.rs/glib/latest/glib/object/trait.CastNone.html)
and perhaps even Result. For now I'm leaving it out, as the patch is
already big enough and the benefit seems debatable.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

rust: re-export C types from qemu-api submodules

Long term we do not want device code to use "bindings" at all, so make it
possible to get the relevant types from the other modules of qemu-api.

Rev

rust: re-export C types from qemu-api submodules

Long term we do not want device code to use "bindings" at all, so make it
possible to get the relevant types from the other modules of qemu-api.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

rust: rename qemu-api modules to follow C code a bit more

A full match would mean calling them qom::object and hw::core::qdev. For now,
keep the names shorter but still a bit easier to find.

Revie

rust: rename qemu-api modules to follow C code a bit more

A full match would mean calling them qom::object and hw::core::qdev. For now,
keep the names shorter but still a bit easier to find.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

rust: qom: put class_init together from multiple ClassInitImpl<>

Parameterize the implementation of ClassInitImpl so that it is
possible to call up the chain of implementations, one superclass at
a

rust: qom: put class_init together from multiple ClassInitImpl<>

Parameterize the implementation of ClassInitImpl so that it is
possible to call up the chain of implementations, one superclass at
a time starting at ClassInitImpl<Self::Class>.

In order to avoid having to implement (for example)
ClassInitImpl<PL011Class>, also remove the dummy PL011Class and
PL011LuminaryClass structs and specify the same ObjectType::Class as
the superclass. In the future this default behavior can be handled by
a procedural macro, by looking at the first field in the struct.

Note that the new trait is safe: the calls are started by
rust_class_init<>(), which is not public and can convert the class
pointer to a Rust reference.

Since CLASS_BASE_INIT applies to the type that is being defined,
and only to it, move it to ObjectImpl.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* rust: better integration with clippy, rustfmt and rustdoc
* rust: interior mutability types
* rust: add a bit operations mo

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* rust: better integration with clippy, rustfmt and rustdoc
* rust: interior mutability types
* rust: add a bit operations module
* rust: first part of QOM rework
* kvm: remove unnecessary #ifdef
* clock: small cleanups, improve handling of Clock lifetimes

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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (49 commits)
rust: qom: change the parent type to an associated type
rust: qom: split ObjectType from ObjectImpl trait
rust: qom: move bridge for TypeInfo functions out of pl011
rust: qdev: move bridge for realize and reset functions out of pl011
rust: qdev: move device_class_init! body to generic function, ClassInitImpl implementation to macro
rust: qom: move ClassInitImpl to the instance side
rust: qom: convert type_info! macro to an associated const
rust: qom: rename Class trait to ClassInitImpl
rust: qom: add default definitions for ObjectImpl
rust: add a bit operation module
rust: add bindings for interrupt sources
rust: define prelude
rust: cell: add BQL-enforcing RefCell variant
rust: cell: add BQL-enforcing Cell variant
bql: check that the BQL is not dropped within marked sections
qom/object: Remove type_register()
script/codeconverter/qom_type_info: Deprecate MakeTypeRegisterStatic and MakeTypeRegisterNotStatic
ui: Replace type_register() with type_register_static()
target/xtensa: Replace type_register() with type_register_static()
target/sparc: Replace type_register() with type_register_static()
...

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

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rust: qom: split ObjectType from ObjectImpl trait

Define a separate trait for fields that also applies to classes that are
defined by C code. This makes it possible to add metadata to core classes,

rust: qom: split ObjectType from ObjectImpl trait

Define a separate trait for fields that also applies to classes that are
defined by C code. This makes it possible to add metadata to core classes,
which has multiple uses:

- it makes it possible to access the parent struct's TYPE_* for types
that are defined in Rust code, and to avoid repeating it in every subclass

- implementors of ObjectType will be allowed to implement the IsA<> trait and
therefore to perform typesafe casts from one class to another.

- in the future, an ObjectType could be created with Foo::new() in a type-safe
manner, without having to pass a TYPE_* constant.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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rust: add bindings for interrupt sources

The InterruptSource bindings let us call qemu_set_irq() and sysbus_init_irq()
as safe code.

Interrupt sources, qemu_irq in C code, are pointers to IRQState

rust: add bindings for interrupt sources

The InterruptSource bindings let us call qemu_set_irq() and sysbus_init_irq()
as safe code.

Interrupt sources, qemu_irq in C code, are pointers to IRQState objects.
They are QOM link properties and can be written to outside the control
of the device (i.e. from a shared reference); therefore they must be
interior-mutable in Rust. Since thread-safety is provided by the BQL,
what we want here is the newly-introduced BqlCell. A pointer to the
contents of the BqlCell (an IRQState**, or equivalently qemu_irq*)
is then passed to the C sysbus_init_irq function.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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