Add IgvmNativeVpContextX64 struct holding the register state (see igvm
spec), and the qigvm_x86_load_context() function to load the register
state.
Wire up using two new functions: qigvm_x86_set_vp_context() is called
from igvm file handling code and stores the boot processor context.
qigvm_x86_bsp_reset() is called from i386 target cpu reset code and
loads the context into the cpu registers.
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-ID: <20251029105555.2492276-5-kraxel@redhat.com>
Add and wire up qigvm_x86_get_mem_map_entry function which converts the
e820 table into an igvm memory map parameter. This makes igvm files for
the native (non-confidential) platform with memory map parameter work.
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-ID: <20251029105555.2492276-4-kraxel@redhat.com>
Prepare for arch-specific igvm code being added to the code base.
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-ID: <20251029105555.2492276-2-kraxel@redhat.com>
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Merge tag 'audio-test-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging
Audio clean-ups
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# gpg: Signature made Fri 31 Oct 2025 07:43:56 AM CET
# gpg: using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [unknown]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5
* tag 'audio-test-pull-request' of https://gitlab.com/marcandre.lureau/qemu: (36 commits)
audio: deprecate HMP audio commands
audio: Rename @endianness argument as @big_endian for clarity
audio: Remove pointless local variables
audio: drop needless audio_driver "descr" field
audio: move capture API to own header
audio: cleanup, use bool for booleans
audio: remove dependency on spice header
audio: move audio.h under include/qemu/
audio/dbus: use a helper function to set the backend dbus server
audio: remove QEMUSoundCard
audio: rename AudioState -> AudioBackend
audio: move internal APIs to audio_int.h
audio/replay: fix type punning
audio: introduce AUD_set_volume_{in,out}_lr()
audio: remove AUDIO_HOST_ENDIANNESS
audio: remove some needless headers
audio: initialize card_head during object init
audio: register and unregister vmstate with AudioState
audio: keep vmstate handle with AudioState
audio: drop needless error message
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Do not expose ARM specific fields to X86 implementation,
allowing to use the proper 'hv_vcpu_exit_t' type.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Call hv_vcpu_destroy() to destroy our vCPU context.
As hv_vcpu_destroy() must be called by the owning thread,
document hvf_arch_vcpu_destroy() also does.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since hvf_arch_update_guest_debug() calls hvf_arch_set_traps()
and hvf_arch_update_guest_debug(), which must run on a vCPU, it
also must. Mention it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
hvf_arch_init_vcpu(), along with hvf_put_guest_debug_registers()
and hvf_put_gdbstub_debug_registers(), calls hv_vcpu_set_sys_reg(),
which must run on a vCPU. Mention they also must.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
hvf_put_registers() and hvf_get_registers() are implemented per
target, rename them using the 'hvf_arch_' prefix following the
per target pattern.
Since they call hv_vcpu_set_reg() / hv_vcpu_get_reg(), mention
they must be called on the vCPU.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
hvf_vcpu_exec() is implemented per target, rename it as
hvf_arch_vcpu_exec(), following the per target pattern.
Since it calls hv_vcpu_run(), mention it must be called
on the vCPU.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
SPDM maybe used over different transports. This patch specifies the
trasnport types as an enum with a qdev property definition such that
a user input transport type (string) can be mapped directly into the
respective SPDM transportenum for internal use.
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Adds the NVMe Admin Security Send/Receive command support with support
for DMTFs SPDM. The transport binding for SPDM is defined in the
DMTF DSP0286.
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This header contains the transport encoding for an SPDM message that
uses the SPDM over Storage transport as defined by the DMTF DSP0286.
Note that in the StorageSpdmTransportHeader structure, security_protocol
field is defined in the SCSI Primary Commands 5 (SPC-5) specification.
The NVMe specification also refers to the SPC-5 for this definition.
The security_protocol_specific field is defined in DSP0286 and is
referred to as SP Specific for NVMe and ATA.
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This is to support uni-directional transports such as SPDM over Storage.
As specified by the DMTF DSP0286.
Also update spdm_socket_rsp() to use the new send()/receive() functions. For
the case of spdm_socket_receive(), this allows us to do error checking
in one place with the addition of spdm_socket_command_valid().
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
The actual backend is "Chardev", CharBackend is the frontend side of
it (whatever talks to the backend), let's rename it for readability.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Link: https://lore.kernel.org/r/20251022074612.1258413-1-marcandre.lureau@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Join the 3 KVM_PUT_*_STATE definitions in a single enum.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Link: https://lore.kernel.org/r/20251008040715.81513-3-philmd@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There are hvcalls that are invoked during MMIO exits, the payload is of
dynamic size. To avoid heap allocations we can use preallocated pages as
in/out buffer for those calls. A page is reserved per vCPU and used for
set/get register hv calls.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-26-magnuskulke@linux.microsoft.com
[Use standard MAX_CONST macro; mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Allow to query mshv capabilities via query-mshv QMP and info mshv HMP commands.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Acked-by: Dr. David Alan Gilbert <dave@treblig.org>
Link: https://lore.kernel.org/r/20250916164847.77883-25-magnuskulke@linux.microsoft.com
[Fix "since" version. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
QEMU maps certain regions into the guest multiple times, as seen in the
trace below. Currently the MSHV kernel driver will reject those
mappings. To workaround this, a record is kept (a static global list of
"slots", inspired by what the HVF accelerator has implemented). An
overlapping region is not registered at the hypervisor, and marked as
mapped=false. If there is an UNMAPPED_GPA exit, we can look for a slot
that is unmapped and would cover the GPA. In this case we map out the
conflicting slot and map in the requested region.
mshv_set_phys_mem add=1 name=pc.bios
mshv_map_memory => u_a=7ffff4e00000 gpa=00fffc0000 size=00040000
mshv_set_phys_mem add=1 name=ioapic
mshv_set_phys_mem add=1 name=hpet
mshv_set_phys_mem add=0 name=pc.ram
mshv_unmap_memory u_a=7fff67e00000 gpa=0000000000 size=80000000
mshv_set_phys_mem add=1 name=pc.ram
mshv_map_memory u_a=7fff67e00000 gpa=0000000000 size=000c0000
mshv_set_phys_mem add=1 name=pc.rom
mshv_map_memory u_a=7ffff4c00000 gpa=00000c0000 size=00020000
mshv_set_phys_mem add=1 name=pc.bios
mshv_remap_attempt => u_a=7ffff4e20000 gpa=00000e0000 size=00020000
The mapping table is guarded by a mutex for concurrent modification and
RCU mechanisms for concurrent reads. Writes occur rarely, but we'll have
to verify whether an unmapped region exist for each UNMAPPED_GPA exit,
which happens frequently.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-24-magnuskulke@linux.microsoft.com
[Fix format strings for trace-events; mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Connect the x86 instruction decoder and emulator to the MSHV backend
to handle intercepted instructions. This enables software emulation
of MMIO operations in MSHV guests. MSHV has a translate_gva hypercall
that is used to accessing the physical guest memory.
A guest might read from unmapped memory regions (e.g. OVMF will probe
0xfed40000 for a vTPM). In those cases 0xFF bytes is returned instead of
aborting the execution.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-21-magnuskulke@linux.microsoft.com
[mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Write CPU register state to MSHV vCPUs. Various mapping functions to
prepare the payload for the HV call have been implemented.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-17-magnuskulke@linux.microsoft.com
[mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Retrieve special registers (e.g. segment, control, and descriptor
table registers) from MSHV vCPUs.
Various helper functions to map register state representations between
Qemu and MSHV are introduced.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-16-magnuskulke@linux.microsoft.com
[mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fetch standard register state from MSHV vCPUs to support debugging,
migration, and other introspection features in QEMU.
Fetch standard register state from a MHSV vCPU's. A generic get_regs()
function and a mapper to map the different register representations are
introduced.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-15-magnuskulke@linux.microsoft.com
[mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add support for writing general-purpose registers to MSHV vCPUs
during initialization or migration using the MSHV register interface. A
generic set_register call is introduced to abstract the HV call over
the various register types.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-14-magnuskulke@linux.microsoft.com
[mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Create MSHV vCPUs using MSHV_CREATE_VP and initialize their state.
Register the MSHV CPU execution loop loop with the QEMU accelerator
framework to enable guest code execution.
The target/i386 functionality is still mostly stubbed out and will be
populated in a later commit in this series.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-11-magnuskulke@linux.microsoft.com
[Fix g_free/g_clear_pointer confusion; rename qemu_wait_io_event;
mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Create the MSHV virtual machine by opening a partition and issuing
the necessary ioctl to initialize it. This sets up the basic VM
structure and initial configuration used by MSHV to manage guest state.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-10-magnuskulke@linux.microsoft.com
[Add stubs; fix format strings for trace-events; make mshv_hvcall
available only in per-target files; mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add memory listener hooks for the MSHV accelerator to track guest
memory regions. This enables the backend to respond to region
additions, removals and will be used to manage guest memory mappings
inside the hypervisor.
Actually registering physical memory in the hypervisor is still stubbed
out.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-9-magnuskulke@linux.microsoft.com
[mshv.h/mshv_int.h split. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Introduce the initial scaffold for the MSHV (Microsoft Hypervisor)
accelerator backend. This includes the basic directory structure and
stub implementations needed to integrate with QEMU's accelerator
framework.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-8-magnuskulke@linux.microsoft.com
[Move include of linux/mshv.h in the per-target section; create
include/system/mshv_int.h. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Rename APIC helper functions to use an accel_* prefix instead of kvm_*
to support use by accelerators other than KVM. This is a preparatory
step for integrating MSHV support with common APIC logic.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-5-magnuskulke@linux.microsoft.com
[Remove dead definition of mshv_msi_via_irqfd_enabled. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The MSHV accelerator requires a x86 decoder/emulator in userland to
emulate MMIO instructions. This change contains the implementations for
the generalized i386 instruction decoder/emulator.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-4-magnuskulke@linux.microsoft.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Very few files use the Physical Memory API. Declare its
methods in their own header: "system/physmem.h".
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20251001175448.18933-19-philmd@linaro.org>
The functions related to the Physical Memory API declared
in "system/ram_addr.h" do not operate on vCPU. Remove the
'cpu_' prefix.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20251001175448.18933-18-philmd@linaro.org>
cpu_physical_memory_sync_dirty_bitmap() is now only called within
system/physmem.c, by ramblock_sync_dirty_bitmap(). Reduce its scope
by making it internal to this file. Since it doesn't involve any CPU,
remove the 'cpu_' prefix.
Remove the now unneeded "qemu/rcu.h" and "system/memory.h" headers.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-17-philmd@linaro.org>
cpu_physical_memory_clear_dirty_range() is now only called within
system/physmem.c, by qemu_ram_resize(). Reduce its scope by making
it internal to this file. Since it doesn't involve any CPU, remove
the 'cpu_' prefix. As it operates on a range, rename @start as @addr.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-16-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-15-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
Remove the now unneeded "system/xen.h" header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-14-philmd@linaro.org>
Commit fb3ecb7ea4 ("exec: Exclude non portable function for
MinGW") guarded cpu_physical_memory_set_dirty_lebitmap() within
_WIN32 #ifdef'ry because of the non-portable ffsl() call, which
was later replaced for the same reason by commit 7224f66ec3
("exec: replace ffsl with ctzl"); we don't need that anymore.
Reported-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: <20251001175448.18933-13-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-12-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-11-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
cpu_physical_memory_all_dirty() doesn't involve any CPU,
remove the 'cpu_' prefix.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-10-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-9-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
cpu_physical_memory_get_dirty() doesn't involve any CPU,
remove the 'cpu_' prefix.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-8-philmd@linaro.org>
Nothing in "system/ram_addr.h" requires definitions from
"exec/cpu-common.h", remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251001175448.18933-2-philmd@linaro.org>
Rename cpu_flush_icache_range() as address_space_flush_icache_range(),
passing an address space by argument. The single caller, rom_reset(),
already operates on an address space. Use it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251002084203.63899-7-philmd@linaro.org>
Factor address_space_is_io() out of cpu_physical_memory_is_io().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251002084203.63899-3-philmd@linaro.org>
