As shown in the PL011 device, the orphan rules required a manual
implementation of ClassInitImpl for anything not in the qemu_api crate;
this gets in the way of moving system emulation-specific code (including
DeviceClass, which as a blanket ClassInitImpl<DeviceClass> implementation)
into its own crate.
Make ClassInitImpl optional, at the cost of having to specify the CLASS_INIT
member by hand in every implementation of ObjectImpl. The next commits will
get rid of it, replacing all the "impl<T> ClassInitImpl<Class> for T" blocks
with a generic class_init<T> method on Class.
Right now the definition is always the same, but do not provide a default
as that will not be true once ClassInitImpl goes away.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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>
Check that the right bounds are provided to the qom_isa! macro
whenever the class is defined to implement a certain class.
This removes the need to add IsA<> bounds together with the
*Impl trait bounds.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This requires making raise_exception non-static. That function needs to be
renamed to avoid clashing with a function in TCG.
Mostly code movement. No functional change.
Signed-off-by: Wei Liu <liuwe@linux.microsoft.com>
Link: https://lore.kernel.org/r/1740126987-8483-12-git-send-email-liuwe@linux.microsoft.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Make the code to rely on the segment definition for checking cs.db.
This allows removing HVF specific VMX related definition from the
decoder.
Introduce a function for retrieving the CS descriptor.
No functional change intended.
Signed-off-by: Wei Liu <liuwe@linux.microsoft.com>
Link: https://lore.kernel.org/r/1740126987-8483-4-git-send-email-liuwe@linux.microsoft.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There is a conflicting declaration for hvf_handle_io in x86_emu.c. The type of
the first argument is wrong. There has never been a problem because the first
argument is not used in hvf_handle_io.
That being said, the code shouldn't contain such an error. Use the proper
declaration from hvf-i386.h.
Take the chance to change the first argument's type to be CPUState.
Signed-off-by: Wei Liu <liuwe@linux.microsoft.com>
Link: https://lore.kernel.org/r/1740126987-8483-3-git-send-email-liuwe@linux.microsoft.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
... and also to require it (--enable-pvg). While at it, unify the dependency()
call for pvg and metal, which simplifies the logic a bit.
Note that all other Apple frameworks are either required or always-present,
therefore do not add them to the summary in the same way as PVG.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
PVG is not cross-architecture; the PVG guest drivers with x86-64 macOS do not give
useful results with the aarch64 macOS host PVG framework, and vice versa.
To express this repurpose CONFIG_MAC_PVG, making it true only if the target has
the same architecture as the host. Furthermore, remove apple-gfx.m unless
one of the devices is actually present.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is possible to start QEMU with a confidential-guest-support object
even in TCG mode. While there is already a check in qemu_machine_creation_done:
if (machine->cgs && !machine->cgs->ready) {
error_setg(errp, "accelerator does not support confidential guest %s",
object_get_typename(OBJECT(machine->cgs)));
exit(1);
}
the creation of RAMBlocks happens earlier, in qemu_init_board(), if
the command line does not override the default memory backend with
-M memdev. Then the RAMBlock will try to use guest_memfd (because
machine_require_guest_memfd correctly returns true; at least correctly
according to the current implementation) and trigger the assertion
failure for kvm_enabled(). This happend with a command line as
simple as the following:
qemu-system-x86_64 -m 512 -nographic -object sev-snp-guest,reduced-phys-bits=48,id=sev0 \
-M q35,kernel-irqchip=split,confidential-guest-support=sev0
qemu-system-x86_64: ../system/physmem.c:1871: ram_block_add: Assertion `kvm_enabled()' failed.
Cc: Xiaoyao Li <xiaoyao.li@intel.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20250217120812.396522-1-pbonzini@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Both monitor-fd.c and monitor-internal.c contain a stub for
monitor_get_fd(), which causes a duplicate symbol linker error when
linking rust-qemu-api-integration. Use monitor-internal.c instead of
monitor-fd.c and remove the latter.
Reported-by: Zhao Liu <zhao1.liu@intel.com>
Suggested-by: Zhao Liu <zhao1.liu@intel.com>
Fixes: fccb744f41 ("gdbstub: Try unlinking the unix socket before binding")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250217104900.230122-1-iii@linux.ibm.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The std::ptr is same as core::ptr, but std has already been used in many
cases and there's no need to choose non-std library.
So, use std::ptr directly to make the used ptr library as consistent as
possible.
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250218080835.3341082-1-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is a common convention in QEMU to return a positive value in case of
success, and a negated errno value in case of error. Unfortunately,
using errno portably in Rust is a bit complicated; on Unix the errno
values are supported natively by io::Error, but on Windows they are not;
so, use the libc crate.
This is a set of utility functions that are used by both chardev and
block layer bindings.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The specification states that,
> The controller shall set all three processing limit fields (i.e., the
> DMRL, DMRSL and DMSL fields) to non-zero values or shall clear all
> three processing limit fields to 0h.
So, set the DMRL and DMSL fields in addition to DMRSL.
Reviewed-by: Jesper Wendel Devantier <foss@defmacro.it>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
The status codes related to I/O Command Sets are in the wrong group.
Reviewed-by: Jesper Wendel Devantier <foss@defmacro.it>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Add a 'dbcs' knob to allow Doorbell Buffer Config command to be
disabled.
Reviewed-by: Jesper Wendel Devantier <foss@defmacro.it>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Virtualization Management needs sriov-related parameters. Only report
support for the command when that conditions are true.
Reviewed-by: Jesper Wendel Devantier <foss@defmacro.it>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
If no nvme-subsys is explicitly configured, instantiate one.
Reviewed-by: Jesper Wendel Devantier <foss@defmacro.it>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
The Open Compute Project [1] includes a Datacenter NVMe
SSD Specification [2]. The most recent version of this specification
(as of November 2024) is 2.6.1. This specification layers on top of
the NVM Express specifications [3] to provide additional
functionality. A key part of of this is the 512 Byte OCP SMART / Health
Information Extended log page that is defined in Section 4.8.6 of the
specification.
We add a controller argument (ocp) that toggles on/off the SMART log
extended structure. To accommodate different vendor specific specifications
like OCP, we add a multiplexing function (nvme_vendor_specific_log) which
will route to the different log functions based on arguments and log ids.
We only return the OCP extended SMART log when the command is 0xC0 and ocp
has been turned on in the nvme argumants.
Though we add the whole nvme SMART log extended structure, we only populate
the physical_media_units_{read,written}, log_page_version and
log_page_uuid.
This patch is based on work done by Joel but has been modified enough
that he requested a co-developed-by tag rather than a signed-off-by.
[1]: https://www.opencompute.org/
[2]: https://www.opencompute.org/documents/datacenter-nvme-ssd-specification-v2-6-1-pdf
[3]: https://nvmexpress.org/specifications/
Signed-off-by: Stephen Bates <sbates@raithlin.com>
Co-developed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
The configuration option of Rust HPET is missing, so that PC machine
can't boot with "hpet=on" when QEMU Rust support is enabled.
Add the Rust HPET configuration option.
Fixes: d128c341a7 ("i386: enable rust hpet for pc when rust is enabled")
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250217154416.3144571-1-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Migration relies on having the same device configuration on the source
and destination. Therefore, there is no need to modify flags,
timer capabilities and the fw_cfg HPET block id on migration;
it was set to exactly the same values by realize.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com> (hpet_post_load only)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
object_property_help() uses the conventional command line syntax instead
of the JSON syntax. In particular,
- Key-value pairs are written in the command line syntax.
- bool description passed to the function says on/off instead of
true/false.
However, there is one exception: default values are formatted into JSON.
While the command line and JSON syntaxes are consistent in many cases,
there are two types where they disagree:
string: The command line syntax omits quotes while JSON requires them.
bool: JSON only accepts true/false for bool but the command line syntax
accepts on/off too, and on/off are also more popular than
true/false. For example, the docs directory has 2045 "on"
occurances while it has only 194 "true" occurances.
on/off are also accepted by OnOffAuto so users do not have to
remember the type is bool or OnOffAuto to use the values.
Omit quotes for strings and use on/off for bools when formatting
default values for better consistency.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Link: https://lore.kernel.org/r/20250207-bool-v1-1-5749d5d6df24@daynix.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There were recently some crashes that occurred when trying to
retrieve the properties of machines. Let's add a test to avoid
regression here.
Message-ID: <20250123204956.1561463-1-thuth@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Feature virtual extioi is loongArch virt machine property rather than
vCPU property in qemu side. However it is vCPU property in KVM kernel
side, here add loongArch virt machine property checking and enable virt
extioi feature when vCPU is created.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Paravirt steal time feature is OnOffAuto type, feature detection is added
to check whether it is supported on KVM host.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Property kvm-steal-time is added for kvm steal time feature, it is
specially for kvm mode.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
The similiar with cpucfg register, paravirt ipi feature is set in
function kvm_arch_put_registers(). Instead the paravirt feature can
be enabled only once, it cannot be changed dynamically.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Paravirt ipi feature is OnOffAuto type, feature detection is added
to check whether it is supported by KVM host.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Property kvm-pv-ipi is added to paravirt ipi feature, it is specially
for kvm mode.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
LBT and PMU feature is supported only in kvm mode, move property
about these two features to function kvm_loongarch_cpu_post_init().
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Some features such as LBT and PMU are implemented in kvm mode,
With paravirt features in future, post init function is added
for kvm mode, so that property for these features will be created
in kvm post init function.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
On 3A5000 system, the physical address space width for host is 48,
however 47 bit for KVM VM. For KVM VM, size of physical address space is
the same with that of virtual user space address.
Here modify physical address space width with 47 bit in KVM mode.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Write operation with R32 (orig_a0) and R34 (CSR_BADV) is discarded on
gdbstub implementation for LoongArch system. And return value should
be register size rather than 0, since it is used to calculate offset of
next register such as R33 (PC) in function handle_write_all_regs().
Cc: qemu-stable@nongnu.org
Fixes: ca61e75071 ("target/loongarch: Add gdb support.")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
When the KVM_REG_LOONGARCH_VCPU_RESET command word
is sent to the kernel through the kvm_set_one_reg interface,
the parameter source needs to be a legal address,
otherwise the kernel will return an error and the command word
will fail to be sent.
Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Currently we handle the 'dumpdtb' machine sub-option ad-hoc in every
board model that has an FDT. It's up to the board code to make sure
it calls qemu_fdt_dumpdtb() in the right place.
This means we're inconsistent and often just ignore the user's
command line argument:
* if the board doesn't have an FDT at all
* if the board supports FDT, but there happens not to be one
present (usually because of a missing -fdt option)
This isn't very helpful because it gives the user no clue why their
option was ignored.
However, in order to support the QMP/HMP dumpdtb commands we require
now that every FDT machine stores a pointer to the FDT in
MachineState::fdt. This means we can handle -machine dumpdtb
centrally by calling the qmp_dumpdtb() function, unifying its
handling with the QMP/HMP commands. All the board code calls to
qemu_fdt_dumpdtb() can then be removed.
For this commit we retain the existing behaviour that if there
is no FDT we silently ignore the -machine dumpdtb option.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The boston machine doesn't set MachineState::fdt to the DTB blob that
it has loaded or created, which means that the QMP/HMP dumpdtb
monitor commands don't work.
Setting MachineState::fdt is easy in the non-FIT codepath: we can
simply do so immediately before loading the DTB into guest memory.
The FIT codepath is a bit more awkward as currently the FIT loader
throws away the memory that the FDT was in after it loads it into
guest memory. So we add a void *pfdt argument to load_fit() for it
to store the FDT pointer into.
There is some readjustment required of the pointer handling in
loader-fit.c, so that it applies 'const' only where it should (e.g.
the data pointer we get back from fdt_getprop() is const, because
it's into the middle of the input FDT data, but the pointer that
fit_load_image_alloc() should not be const, because it's freshly
allocated memory that the caller can change if it likes).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250206151214.2947842-5-peter.maydell@linaro.org
The function boston_fdt_filter() can return NULL on errors (in which
case it will print an error message). When we call this from the
non-FIT-image codepath, we aren't checking the return value, so we
will plough on with a NULL pointer, and segfault in fdt_totalsize().
Check for errors here.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250206151214.2947842-4-peter.maydell@linaro.org
The openrisc machines don't set MachineState::fdt to point to their
DTB blob. This means that although the command line '-machine
dumpdtb=file.dtb' option works, the equivalent QMP and HMP monitor
commands do not, but instead produce the error "This machine doesn't
have a FDT".
Set MachineState::fdt in openrisc_load_fdt(), when we write it to
guest memory.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250206151214.2947842-3-peter.maydell@linaro.org
In hmp_dumpdtb(), we print a message when the command succeeds. This
message is missing the trailing \n, so the HMP command prompt is
printed immediately after it. We also weren't capitalizing 'DTB', or
quoting the filename in the message. Fix these nits.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250206151214.2947842-2-peter.maydell@linaro.org
The MMIO region size required to support virtualized environments with
large PCI BAR regions can exceed the hardcoded limit configured in QEMU.
For example, a VM with multiple NVIDIA Grace-Hopper GPUs passed through
requires more MMIO memory than the amount provided by VIRT_HIGH_PCIE_MMIO
(currently 512GB). Instead of updating VIRT_HIGH_PCIE_MMIO, introduce a
new parameter, highmem-mmio-size, that specifies the MMIO size required
to support the VM configuration.
Example usage with 1TB MMIO region size:
-machine virt,gic-version=3,highmem-mmio-size=1T
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Message-id: 20250221145419.1281890-1-mochs@nvidia.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When we fill in the SMMUEventInfo for SMMU_EVT_F_CD_FETCH we write
the address into the f_ste_fetch member of the union, but then when
we come to read it back in smmuv3_record_event() we will (correctly)
be using the f_cd_fetch member.
This is more like a cosmetics fix since the f_cd_fetch and f_ste_fetch are
basically the same field since they are in the exact same union with exact
same type, but it's conceptually wrong. Use the correct union member.
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Message-id: 20250220213832.80289-1-nicolinc@nvidia.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Refine documentation for the hub device, specify the maximum.
Signed-off-by: Roman Penyaev <r.peniaev@gmail.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: qemu-devel@nongnu.org
Message-ID: <20250219090607.559887-1-r.peniaev@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Have the MicroblazeMachine class being common to both
MicroblazeBigEndianMachine and MicroblazeLittleEndianMachine
classes. Move the xmaton and ballerina tests to the parent class.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250212123659.52764-11-philmd@linaro.org>
[thuth: Add missing ASSET statements to the leaf classes]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Features:
SR-IOV emulation for pci
virtio-mem-pci support for s390
interleave support for cxl
big endian support for vdpa svq
new QAPI events for vhost-user
Also vIOMMU reset order fixups are in.
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,pc,pci: features, fixes, cleanups
Features:
SR-IOV emulation for pci
virtio-mem-pci support for s390
interleave support for cxl
big endian support for vdpa svq
new QAPI events for vhost-user
Also vIOMMU reset order fixups are in.
Fixes, cleanups all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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# gpg: Signature made Fri 21 Feb 2025 20:21:31 HKT
# 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: (41 commits)
docs/devel/reset: Document reset expectations for DMA and IOMMU
hw/vfio/common: Add a trace point in vfio_reset_handler
hw/arm/smmuv3: Move reset to exit phase
hw/i386/intel-iommu: Migrate to 3-phase reset
hw/virtio/virtio-iommu: Migrate to 3-phase reset
vhost-user-snd: correct the calculation of config_size
net: vhost-user: add QAPI events to report connection state
hw/virtio/virtio-nsm: Respond with correct length
vdpa: Fix endian bugs in shadow virtqueue
MAINTAINERS: add more files to `vhost`
cryptodev/vhost: allocate CryptoDevBackendVhost using g_mem0()
vhost-iova-tree: Update documentation
vhost-iova-tree, svq: Implement GPA->IOVA & partial IOVA->HVA trees
vhost-iova-tree: Implement an IOVA-only tree
amd_iommu: Use correct bitmask to set capability BAR
amd_iommu: Use correct DTE field for interrupt passthrough
hw/virtio: reset virtio balloon stats on machine reset
mem/cxl_type3: support 3, 6, 12 and 16 interleave ways
hw/mem/cxl_type3: Ensure errp is set on realization failure
hw/mem/cxl_type3: Fix special_ops memory leak on msix_init_exclusive_bar() failure
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
