In the functions invalidate_and_set_dirty() and
cpu_physical_memory_snapshot_and_clear_dirty(), we assume that we
are dealing with RAM memory regions. In this case we know that
memory_region_get_ram_addr() will succeed. Assert this before we
use the returned ram_addr_t in arithmetic.
This makes Coverity happier about these functions: it otherwise
complains that we might have an arithmetic overflow that stems
from the possible -1 return from memory_region_get_ram_addr().
Resolves: Coverity CID 1547629, 1547715
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-id: 20240723170513.1676453-1-peter.maydell@linaro.org
Misc HW patch queue
- Restrict probe_access*() functions to TCG (Phil)
- Extract do_invalidate_device_tlb from vtd_process_device_iotlb_desc (Clément)
- Fixes in Loongson IPI model (Bibo & Phil)
- Make docs/interop/firmware.json compatible with qapi-gen.py script (Thomas)
- Correct MPC I2C MMIO region size (Zoltan)
- Remove useless cast in Loongson3 Virt machine (Yao)
- Various uses of range overlap API (Yao)
- Use ERRP_GUARD macro in nubus_virtio_mmio_realize (Zhao)
- Use DMA memory API in Goldfish UART model (Phil)
- Expose fifo8_pop_buf and introduce fifo8_drop (Phil)
- MAINTAINERS updates (Zhao, Phil)
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# gpg: Signature made Wed 24 Jul 2024 06:36:47 AM AEST
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
* tag 'hw-misc-20240723' of https://github.com/philmd/qemu: (28 commits)
MAINTAINERS: Add myself as a reviewer of machine core
MAINTAINERS: Cover guest-agent in QAPI schema
util/fifo8: Introduce fifo8_drop()
util/fifo8: Expose fifo8_pop_buf()
util/fifo8: Rename fifo8_pop_buf() -> fifo8_pop_bufptr()
util/fifo8: Rename fifo8_peek_buf() -> fifo8_peek_bufptr()
util/fifo8: Use fifo8_reset() in fifo8_create()
util/fifo8: Fix style
chardev/char-fe: Document returned value on error
hw/char/goldfish: Use DMA memory API
hw/nubus/virtio-mmio: Fix missing ERRP_GUARD() in realize handler
dump: make range overlap check more readable
crypto/block-luks: make range overlap check more readable
system/memory_mapping: make range overlap check more readable
sparc/ldst_helper: make range overlap check more readable
cxl/mailbox: make range overlap check more readable
util/range: Make ranges_overlap() return bool
hw/mips/loongson3_virt: remove useless type cast
hw/i2c/mpc_i2c: Fix mmio region size
docs/interop/firmware.json: convert "Example" section
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When ram_block_discard_require() fails, errno is passed to error_setg_errno().
It's a stale value or 0 which is unrelated to ram_block_discard_require().
As ram_block_discard_require() already returns -EBUSY in failure case,
use it as errno for error_setg_errno().
Fixes: 852f0048f3 ("make guest_memfd require uncoordinated discard")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240716064213.290696-1-zhenzhong.duan@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Bail out in qemu_ram_block_from_host() when
xen_ram_addr_from_mapcache() does not find an existing
mapping.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Everything is now in place to use the Host IOMMU Device callbacks
to retrieve the page size mask usable with a given assigned device.
This new method brings the advantage to pass the info much earlier
to the virtual IOMMU and before the IOMMU MR gets enabled. So let's
remove the call to memory_region_iommu_set_page_size_mask in
vfio common.c and remove the single implementation of the IOMMU MR
callback in the virtio-iommu.c
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
virtio: features,fixes
A bunch of improvements:
- vhost dirty log is now only scanned once, not once per device
- virtio and vhost now support VIRTIO_F_NOTIFICATION_DATA
- cxl gained DCD emulation support
- pvpanic gained shutdown support
- beginning of patchset for Generic Port Affinity Structure
- s3 support
- friendlier error messages when boot fails on some illegal configs
- for vhost-user, VHOST_USER_SET_LOG_BASE is now only sent once
- part of vhost-user support for any POSIX system -
not yet enabled due to qtest failures
- sr-iov VF setup code has been reworked significantly
- new tests, particularly for risc-v ACPI
- bugfixes
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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# gpg: Signature made Wed 03 Jul 2024 03:41:51 PM PDT
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [undefined]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (85 commits)
hw/pci: Replace -1 with UINT32_MAX for romsize
pcie_sriov: Register VFs after migration
pcie_sriov: Remove num_vfs from PCIESriovPF
pcie_sriov: Release VFs failed to realize
pcie_sriov: Reuse SR-IOV VF device instances
pcie_sriov: Ensure VF function number does not overflow
pcie_sriov: Do not manually unrealize
hw/ppc/spapr_pci: Do not reject VFs created after a PF
hw/ppc/spapr_pci: Do not create DT for disabled PCI device
hw/pci: Rename has_power to enabled
virtio-iommu: Clear IOMMUDevice when VFIO device is unplugged
virtio: remove virtio_tswap16s() call in vring_packed_event_read()
hw/cxl/events: Mark cxl-add-dynamic-capacity and cxl-release-dynamic-capcity unstable
hw/cxl/events: Improve QMP interfaces and documentation for add/release dynamic capacity.
tests/data/acpi/rebuild-expected-aml.sh: Add RISC-V
pc-bios/meson.build: Add support for RISC-V in unpack_edk2_blobs
meson.build: Add RISC-V to the edk2-target list
tests/data/acpi/virt: Move ARM64 ACPI tables under aarch64/${machine} path
tests/data/acpi: Move x86 ACPI tables under x86/${machine} path
tests/qtest/bios-tables-test.c: Set "arch" for x86 tests
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Misc HW patches queue
- Prevent NULL deref in sPAPR network model (Oleg)
- Automatic deprecation of versioned machine types (Daniel)
- Correct 'dump-guest-core' property name in hint (Akihiko)
- Prevent IRQ leak in MacIO IDE model (Mark)
- Remove dead #ifdef'ry related to unsupported macOS 12.0 (Akihiko)
- Remove "hw/hw.h" where unnecessary (Thomas)
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# gpg: Signature made Mon 01 Jul 2024 09:59:16 PM PDT
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
* tag 'hw-misc-20240702' of https://github.com/philmd/qemu: (22 commits)
Remove inclusion of hw/hw.h from files that don't need it
net/vmnet: Drop ifdef for macOS versions older than 12.0
block/file-posix: Drop ifdef for macOS versions older than 12.0
audio: Drop ifdef for macOS versions older than 12.0
hvf: Drop ifdef for macOS versions older than 12.0
hw/ide/macio: switch from using qemu_allocate_irq() to qdev input GPIOs
system/physmem: Fix reference to dump-guest-core
docs: document special exception for machine type deprecation & removal
hw/i386: remove obsolete manual deprecation reason string of i440fx machines
hw/ppc: remove obsolete manual deprecation reason string of spapr machines
hw: skip registration of outdated versioned machine types
hw: set deprecation info for all versioned machine types
include/hw: temporarily disable deletion of versioned machine types
include/hw: add macros for deprecation & removal of versioned machines
hw/i386: convert 'q35' machine definitions to use new macros
hw/i386: convert 'i440fx' machine definitions to use new macros
hw/m68k: convert 'virt' machine definitions to use new macros
hw/ppc: convert 'spapr' machine definitions to use new macros
hw/s390x: convert 'ccw' machine definitions to use new macros
hw/arm: convert 'virt' machine definitions to use new macros
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emit a QMP event on receiving a PVPANIC_SHUTDOWN event. Even though a typical
SHUTDOWN event will be sent, it will be indistinguishable from a shutdown
originating from other cases (e.g. KVM exit due to KVM_SYSTEM_EVENT_SHUTDOWN)
that also issue the guest-shutdown cause.
A management layer application can detect the new GUEST_PVSHUTDOWN event to
determine if the guest is using the pvpanic interface to request shutdowns.
Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Message-Id: <20240527-pvpanic-shutdown-v8-6-5a28ec02558b@t-8ch.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Shutdown requests are normally hardware dependent.
By extending pvpanic to also handle shutdown requests, guests can
submit such requests with an easily implementable and cross-platform
mechanism.
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Message-Id: <20240527-pvpanic-shutdown-v8-5-5a28ec02558b@t-8ch.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Both cpu-pm and mem-lock are related to system resource overcommit, but
they are separate from each other, in terms of how they are realized,
and of course, they are applied to different system resources.
It's tempting to use separate command lines to specify their behavior.
e.g., in the following example, the cpu-pm command is quietly
overwritten, and it's not easy to notice it without careful inspection.
--overcommit mem-lock=on
--overcommit cpu-pm=on
Fixes: c8c9dc42b7 ("Remove the deprecated -realtime option")
Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Zide Chen <zide.chen@intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Since the host IOVA ranges are now passed through the
PCIIOMMUOps set_host_resv_regions and we have removed
the only implementation of iommu_set_iova_range() in
the virtio-iommu and the only call site in vfio/common,
let's retire the IOMMU MR API and its memory wrapper.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Pass the ram_addr offset to xen_map_cache.
This is in preparation for adding grant mappings that need
to compute the address within the RAMBlock.
No functional changes.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* virtio-blk: remove SCSI passthrough functionality
* require x86-64-v2 baseline ISA
* SEV-SNP host support
* fix xsave.flat with TCG
* fixes for CPUID checks done by TCG
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# gpg: Signature made Wed 05 Jun 2024 02:01:10 AM PDT
# 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]
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (46 commits)
hw/i386: Add support for loading BIOS using guest_memfd
hw/i386/sev: Use guest_memfd for legacy ROMs
memory: Introduce memory_region_init_ram_guest_memfd()
i386/sev: Allow measured direct kernel boot on SNP
i386/sev: Reorder struct declarations
i386/sev: Extract build_kernel_loader_hashes
i386/sev: Enable KVM_HC_MAP_GPA_RANGE hcall for SNP guests
i386/kvm: Add KVM_EXIT_HYPERCALL handling for KVM_HC_MAP_GPA_RANGE
i386/sev: Invoke launch_updata_data() for SNP class
i386/sev: Invoke launch_updata_data() for SEV class
hw/i386/sev: Add support to encrypt BIOS when SEV-SNP is enabled
i386/sev: Add support for SNP CPUID validation
i386/sev: Add support for populating OVMF metadata pages
hw/i386/sev: Add function to get SEV metadata from OVMF header
i386/sev: Set CPU state to protected once SNP guest payload is finalized
i386/sev: Add handling to encrypt/finalize guest launch data
i386/sev: Add the SNP launch start context
i386/sev: Update query-sev QAPI format to handle SEV-SNP
i386/sev: Add a class method to determine KVM VM type for SNP guests
i386/sev: Don't return launch measurements for SEV-SNP guests
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For xen, when checking for the first RAM (xen_memory), use
xen_mr_is_memory() rather than checking for a RAMBlock with
offset 0.
All Xen machines create xen_memory first so this has no
functional change for existing machines.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240529140739.1387692-6-edgar.iglesias@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
qmp_memsave() and qmp_pmemsave() report fwrite() error as
An IO error has occurred
Improve this to
writing memory to '<filename>' failed
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240513141703.549874-5-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Introduce a new Kconfig symbol, CONFIG_DEVICE_TREE, that specifies whether
to include the common device tree code in system/device_tree.c and to
link to libfdt. For now, include it unconditionally if libfdt is
available.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The old "-runas" option has the disadvantage that it is not visible
in the QAPI schema, so it is not available via the normal introspection
mechanisms. We've recently introduced the "-run-with" option for exactly
this purpose, which is meant to handle the options that affect the
runtime behavior. Thus let's introduce a "user=..." parameter here now
and deprecate the old "-runas" option.
Message-ID: <20240506112058.51446-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Instead of using a single global bounce buffer, give each AddressSpace
its own bounce buffer. The MapClient callback mechanism moves to
AddressSpace accordingly.
This is in preparation for generalizing bounce buffer handling further
to allow multiple bounce buffers, with a total allocation limit
configured per AddressSpace.
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mattias Nissler <mnissler@rivosinc.com>
Message-ID: <20240507094210.300566-2-mnissler@rivosinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[PMD: Split patch, part 2/2]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Propagate AddressSpace handler to following helpers:
- register_map_client()
- unregister_map_client()
- notify_map_clients[_locked]()
Rename them using 'address_space_' prefix instead of 'cpu_'.
The AddressSpace argument will be used in the next commit.
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mattias Nissler <mnissler@rivosinc.com>
Message-ID: <20240507094210.300566-2-mnissler@rivosinc.com>
[PMD: Split patch, part 1/2]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Now we do set MIGRATION_FAILED state, but don't give a chance to
orchestrator to query migration state and get the error.
Let's provide a possibility for QMP-based orchestrators to get an error
like with outgoing migration.
For hmp_migrate_incoming(), let's enable the new behavior: HMP is not
and ABI, it's mostly intended to use by developer and it makes sense
not to stop the process.
For x-exit-preconfig, let's keep the old behavior:
- it's called from init(), so here we want to keep current behavior by
default
- it does exit on error by itself as well
So, if we want to change the behavior of x-exit-preconfig, it should be
another patch.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
