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45 hourshw/intc/gicv3_its: Do not check its_class_name()Philippe Mathieu-Daudé1-1/+1
Since commit cc5e719e2c8 ("kvm: require KVM_CAP_SIGNAL_MSI"), the single implementation of its_class_name() no longer returns NULL (it now always returns a valid char pointer). Hence, update the prototype docstring and remove the tautological checks that use the its_class_name() returned value. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-id: 20250628195722.977078-2-gustavo.romero@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 daysMerge tag 'pull-vfio-20250626' of https://github.com/legoater/qemu into stagingStefan Hajnoczi2-0/+16
vfio queue: * Added several small fixes and cleanups * Added support for vfio-user client device # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEEoPZlSPBIlev+awtgUaNDx8/77KEFAmhc+mwACgkQUaNDx8/7 # 7KHQShAAwGTjc6yzBaFr9DTKaL6Vszwby5tYdV3vWTsnFj2zBks+5BswohxbnYdk # Smy5E/F+yCiHI6X4ohI4FRjJgBJplDxZ6bbEgTwZa6ADs7xWAwFWv349KQY9uLpJ # XV/ACot2b6FZUskv3w1SxQrpzho4ICm3DuLOdAFAvBPRtxyC2aQMLsXTlT+7+5cC # X8zJB/9mtjWIomYWKRXnYUP/uM1g7QLtyU7d01szvqCfSVUilVlg6Ys7RxnqLG0k # A1/kxYOrEPHHxMO+YwFuapIfE8Gqihes2K1GfM871JaBT14dMIAZkajmVasbKD16 # Iljz89nEV3UehDP9HADhx3QuXO7fhJ3cxcHvTH0xhUeoks3EgTlUq0VNRRYzu6rQ # 3P1E3cVaPTmwfoSrhecNIFcln4v/bENdwzYcjh96r9fcFwE+ro4oUTGNKCPYv2t0 # yOoc6PqgiZN7DM89/N2hcesgOun7oOVpMnKhiqHjVe53HoM8bfLojWECKNq9Cz1u # m0YEHn2gEuEB5l03IguRnAywZq76Jivd6WFmAeXGrHRZ9sfxQCwvImbqMa7QxYpI # rt+j7RAyP57WVoBPoW8hlaIQmLuIvIgdWwWkwQd2BTIprLpdHJd4SWkL6eqGozpE # rsaHw+WQZqFoddrl7EUSVY/Z2CfIRr1g/Zo5z4RU9YLtxVxjSPw= # =sX2P # -----END PGP SIGNATURE----- # gpg: Signature made Thu 26 Jun 2025 03:44:44 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-20250626' of https://github.com/legoater/qemu: (25 commits) vfio-user: introduce vfio-user protocol specification docs: add vfio-user documentation vfio-user: add coalesced posted writes vfio-user: support posted writes vfio-user: add 'x-msg-timeout' option vfio-user: implement VFIO_USER_DMA_READ/WRITE vfio-user: implement VFIO_USER_DMA_MAP/UNMAP vfio-user: implement VFIO_USER_DEVICE_RESET vfio-user: set up container access to the proxy vfio-user: forward MSI-X PBA BAR accesses to server vfio-user: implement VFIO_USER_DEVICE_GET/SET_IRQ* vfio-user: set up PCI in vfio_user_pci_realize() vfio-user: implement VFIO_USER_REGION_READ/WRITE vfio-user: implement VFIO_USER_DEVICE_GET_REGION_INFO vfio-user: implement VFIO_USER_DEVICE_GET_INFO vfio-user: implement message send infrastructure vfio-user: implement message receive infrastructure vfio-user: connect vfio proxy to remote server vfio-user: add vfio-user class and container vfio/container: fails mdev hotplug if add migration blocker failed ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
7 daysvfio-user: connect vfio proxy to remote serverJohn Levon1-0/+2
Introduce the vfio-user "proxy": this is the client code responsible for sending and receiving vfio-user messages across the control socket. The new files hw/vfio-user/proxy.[ch] contain some basic plumbing for managing the proxy; initialize the proxy during realization of the VFIOUserPCIDevice instance. Originally-by: John Johnson <john.g.johnson@oracle.com> Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com> Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-3-john.levon@nutanix.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
7 daysvfio-user: add vfio-user class and containerJohn Levon1-0/+1
Introduce basic plumbing for vfio-user with CONFIG_VFIO_USER. We introduce VFIOUserContainer in hw/vfio-user/container.c, which is a container type for the "IOMMU" type "vfio-iommu-user", and share some common container code from hw/vfio/container.c. Add hw/vfio-user/pci.c for instantiating VFIOUserPCIDevice objects, sharing some common code from hw/vfio/pci.c. Originally-by: John Johnson <john.g.johnson@oracle.com> Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com> Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-2-john.levon@nutanix.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
7 daysvfio: add documentation for posted write argumentJohn Levon1-0/+1
Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250616101314.3189793-1-john.levon@nutanix.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
7 daysvfio: add vfio_device_get_region_fd()John Levon1-0/+12
This keeps the existence of ->region_fds private to hw/vfio/device.c. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/qemu-devel/20250616101337.3190027-1-john.levon@nutanix.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
8 daysinclude/qemu: replace FSF postal address with licenses URLSean Wei2-4/+4
The LGPLv2.1 boiler-plate in rcu.h and rcu_queue.h still contained the obsolete "51 Franklin Street" postal address. Replace it with the canonical GNU licenses URL recommended by the FSF: https://www.gnu.org/licenses/ Signed-off-by: Sean Wei <me@sean.taipei> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20250613.qemu.patch.06@sean.taipei> Signed-off-by: Thomas Huth <thuth@redhat.com>
8 daysinclude/hw: replace FSF postal address with licenses URLSean Wei3-6/+4
Some of the GPLv2 boiler-plate still contained the obsolete "51 Franklin Street" postal address. Replace it with the canonical GNU licenses URL recommended by the FSF: https://www.gnu.org/licenses/ Signed-off-by: Sean Wei <me@sean.taipei> Reviewed-by: Cédric Le Goater <clg@redhat.com> Message-ID: <20250613.qemu.patch.05@sean.taipei> Signed-off-by: Thomas Huth <thuth@redhat.com>
8 daysinclude/libdecnumber: replace FSF postal address with licenses URLSean Wei9-27/+18
Some of the GPLv2 boiler-plate still contained the obsolete "51 Franklin Street" postal address. Replace it with the canonical GNU licenses URL recommended by the FSF: https://www.gnu.org/licenses/ Signed-off-by: Sean Wei <me@sean.taipei> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20250613.qemu.patch.04@sean.taipei> Signed-off-by: Thomas Huth <thuth@redhat.com>
8 dayshw/s390x: add Control-Program Identification to QOMShalini Chellathurai Saroja1-0/+5
Add Control-Program Identification (CPI) data to the QEMU Object Model (QOM), along with the timestamp in which the data was received as shown below. virsh # qemu-monitor-command vm --pretty '{"execute":"qom-list", "arguments":{"path":"/machine/sclp/s390-sclp-event-facility/sclpcpi"}}' { "return": [ [...] { "name": "system_level", "type": "uint64" }, { "name": "system_name", "type": "string" }, { "name": "system_type", "type": "string" }, { "name": "timestamp", "type": "uint64" }, { "name": "sysplex_name", "type": "string" } ], "id": "libvirt-14" } Example CPI data: virsh # qemu-monitor-command vm --pretty '{"execute":"qom-get", "arguments":{"path":"/machine/sclp/s390-sclp-event-facility/sclpcpi", "property":"system_type"}}' { "return": "LINUX ", "id": "libvirt-18" } virsh # qemu-monitor-command vm --pretty '{"execute":"qom-get", "arguments":{"path":"/machine/sclp/s390-sclp-event-facility/sclpcpi", "property":"system_name"}}' { "return": "TESTVM ", "id": "libvirt-19" } virsh # qemu-monitor-command vm --pretty '{"execute":"qom-get", "arguments":{"path":"/machine/sclp/s390-sclp-event-facility/sclpcpi", "property":"sysplex_name"}}' { "return": "PLEX ", "id": "libvirt-20" } virsh # qemu-monitor-command vm --pretty '{"execute":"qom-get", "arguments":{"path":"/machine/sclp/s390-sclp-event-facility/sclpcpi", "property":"system_level"}}' { "return": 74872343805430528, "id": "libvirt-21" } virsh # qemu-monitor-command vm --pretty '{"execute":"qom-get", "arguments":{"path":"/machine/sclp/s390-sclp-event-facility/sclpcpi", "property":"timestamp"}}' { "return": 1748866753433923000, "id": "libvirt-22" } Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Message-ID: <20250616140107.990538-3-shalini@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
8 dayshw/s390x: add SCLP event type CPIShalini Chellathurai Saroja2-0/+13
Implement the Service-Call Logical Processor (SCLP) event type Control-Program Identification (CPI) in QEMU. This event is used to send CPI identifiers from the guest to the host. The CPI identifiers are: system type, system name, system level and sysplex name. System type: operating system of the guest (e.g. "LINUX "). System name: user configurable name of the guest (e.g. "TESTVM "). System level: distribution and kernel version, if the system type is Linux (e.g. 74872343805430528). Sysplex name: name of the cluster which the guest belongs to (if any) (e.g. "PLEX"). The SCLP event CPI is supported only from "s390-ccw-virtio-10.1" machine and higher. Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20250616140107.990538-2-shalini@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
9 daysMerge tag 'pull-tcg-20250623' of https://gitlab.com/rth7680/qemu into stagingStefan Hajnoczi1-5/+58
linux-user: fix resource leaks in gen-vdso tcg: Add ptr+ofs alternatives to some gvec functions # -----BEGIN PGP SIGNATURE----- # # iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmhZ/LMdHHJpY2hhcmQu # aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8aCggAtZOamQ0+EMe09u9d # slaeZDlmxHYfb4RXJQasIBi/uHoWY1bFCEWqLnjU41cpNqI7B3yihbS/YQzyI1i/ # fqjATmuhDzer7rZfdtmRdiLi6kY9SuN9tcSVMVU/kxixByPxdYspQBO8hAAQMM1X # ZY5MIR/5nEMN/U0QUMuqd3krsxzglGQl9Dn610ddVGfzluSCKLLMS/m92gaJmz0u # xoLTM29lfdtIA29JPpVY+1X8NJ/vTUeBvy2eXUGHjT11rHsYUzMVGCGbzCLluEzN # V3L/aSkiwrV+wW5M7R6+hySQl65ZVRV+E9BHuln9aDnG4jdzT3conohg2cY9a5jw # m3HqnQ== # =U6ub # -----END PGP SIGNATURE----- # gpg: Signature made Mon 23 Jun 2025 21:17:39 EDT # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full] # Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * tag 'pull-tcg-20250623' of https://gitlab.com/rth7680/qemu: linux-user: fix resource leaks in gen-vdso linux-user/aarch64: Update hwcap bits from 6.14 tcg: Split out tcg_gen_gvec_dup_imm_var tcg: Split out tcg_gen_gvec_{add,sub}_var tcg: Split out tcg_gen_gvec_mov_var tcg: Split out tcg_gen_gvec_3_var tcg: Split out tcg_gen_gvec_2_var tcg: Add base arguments to check_overlap_[234] tcg: Add dbase argument to expand_clr tcg: Add dbase argument to do_dup tcg: Add dbase argument to do_dup_store Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
9 daysMerge tag 'migration-staging-pull-request' of https://gitlab.com/peterx/qemu ↵Stefan Hajnoczi2-20/+112
into staging Migration / Memory pull - Yanfei's optimization to skip log_clear during completion - Fabiano's cleanup to remove leftover migration-helpers.c file - Juraj's vnc fix on display pause after migration - Jaehoon's cpr test fix on possible race of server establishment - Chenyi's initial support on vfio enablement for guest-memfd # -----BEGIN PGP SIGNATURE----- # # iIgEABYKADAWIQS5GE3CDMRX2s990ak7X8zN86vXBgUCaFmzWhIccGV0ZXJ4QHJl # ZGhhdC5jb20ACgkQO1/MzfOr1wbWYQD/dz08tyaL2J4EHESfBsW4Z1rEggVOM0cB # hlXnvzf/Pb4A/0X3Hn18bOxfPAZOr8NggS5AKgzCCYVeQEWQA2Jj8hwC # =kcTN # -----END PGP SIGNATURE----- # gpg: Signature made Mon 23 Jun 2025 16:04:42 EDT # gpg: using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706 # gpg: issuer "peterx@redhat.com" # gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [full] # gpg: aka "Peter Xu <peterx@redhat.com>" [full] # Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D D1A9 3B5F CCCD F3AB D706 * tag 'migration-staging-pull-request' of https://gitlab.com/peterx/qemu: physmem: Support coordinated discarding of RAM with guest_memfd ram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with guest_memfd memory: Unify the definiton of ReplayRamPopulate() and ReplayRamDiscard() memory: Change memory_region_set_ram_discard_manager() to return the result memory: Export a helper to get intersection of a MemoryRegionSection with a given range migration: Don't sync volatile memory after migration completes tests/migration: Setup pre-listened cpr.sock to remove race-condition. migration: Support fd-based socket address in cpr_transfer_input ui/vnc: Update display update interval when VM state changes to RUNNING tests/qtest: Remove migration-helpers.c migration/ram: avoid to do log clear in the last round Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 daysphysmem: Support coordinated discarding of RAM with guest_memfdChenyi Qiang1-0/+1
A new field, attributes, was introduced in RAMBlock to link to a RamBlockAttributes object, which centralizes all guest_memfd related information (such as fd and status bitmap) within a RAMBlock. Create and initialize the RamBlockAttributes object upon ram_block_add(). Meanwhile, register the object in the target RAMBlock's MemoryRegion. After that, guest_memfd-backed RAMBlock is associated with the RamDiscardManager interface, and the users can execute RamDiscardManager specific handling. For example, VFIO will register the RamDiscardListener and get notifications when the state_change() helper invokes. As coordinate discarding of RAM with guest_memfd is now supported, only block uncoordinated discard. Tested-by: Alexey Kardashevskiy <aik@amd.com> Reviewed-by: Alexey Kardashevskiy <aik@amd.com> Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com> Link: https://lore.kernel.org/r/20250612082747.51539-6-chenyi.qiang@intel.com Signed-off-by: Peter Xu <peterx@redhat.com>
10 daysram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with ↵Chenyi Qiang1-0/+21
guest_memfd Commit 852f0048f3 ("RAMBlock: make guest_memfd require uncoordinated discard") highlighted that subsystems like VFIO may disable RAM block discard. However, guest_memfd relies on discard operations for page conversion between private and shared memory, potentially leading to the stale IOMMU mapping issue when assigning hardware devices to confidential VMs via shared memory. To address this and allow shared device assignement, it is crucial to ensure the VFIO system refreshes its IOMMU mappings. RamDiscardManager is an existing interface (used by virtio-mem) to adjust VFIO mappings in relation to VM page assignment. Effectively page conversion is similar to hot-removing a page in one mode and adding it back in the other. Therefore, similar actions are required for page conversion events. Introduce the RamDiscardManager to guest_memfd to facilitate this process. Since guest_memfd is not an object, it cannot directly implement the RamDiscardManager interface. Implementing it in HostMemoryBackend is not appropriate because guest_memfd is per RAMBlock, and some RAMBlocks have a memory backend while others do not. Notably, virtual BIOS RAMBlocks using memory_region_init_ram_guest_memfd() do not have a backend. To manage RAMBlocks with guest_memfd, define a new object named RamBlockAttributes to implement the RamDiscardManager interface. This object can store the guest_memfd information such as the bitmap for shared memory and the registered listeners for event notifications. A new state_change() helper function is provided to notify listeners, such as VFIO, allowing VFIO to do dynamically DMA map and unmap for the shared memory according to conversion events. Note that in the current context of RamDiscardManager for guest_memfd, the shared state is analogous to being populated, while the private state can be considered discarded for simplicity. In the future, it would be more complicated if considering more states like private/shared/discarded at the same time. In current implementation, memory state tracking is performed at the host page size granularity, as the minimum conversion size can be one page per request. Additionally, VFIO expected the DMA mapping for a specific IOVA to be mapped and unmapped with the same granularity. Confidential VMs may perform partial conversions, such as conversions on small regions within a larger one. To prevent such invalid cases and until support for DMA mapping cut operations is available, all operations are performed with 4K granularity. In addition, memory conversion failures cause QEMU to quit rather than resuming the guest or retrying the operation at present. It would be future work to add more error handling or rollback mechanisms once conversion failures are allowed. For example, in-place conversion of guest_memfd could retry the unmap operation during the conversion from shared to private. For now, keep the complex error handling out of the picture as it is not required. Tested-by: Alexey Kardashevskiy <aik@amd.com> Reviewed-by: Alexey Kardashevskiy <aik@amd.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com> Link: https://lore.kernel.org/r/20250612082747.51539-5-chenyi.qiang@intel.com [peterx: squash fixup from Chenyi to fix builds] Signed-off-by: Peter Xu <peterx@redhat.com>
10 daysmemory: Unify the definiton of ReplayRamPopulate() and ReplayRamDiscard()Chenyi Qiang1-17/+57
Update ReplayRamDiscard() function to return the result and unify the ReplayRamPopulate() and ReplayRamDiscard() to ReplayRamDiscardState() at the same time due to their identical definitions. This unification simplifies related structures, such as VirtIOMEMReplayData, which makes it cleaner. Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com> Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com> Link: https://lore.kernel.org/r/20250612082747.51539-4-chenyi.qiang@intel.com Signed-off-by: Peter Xu <peterx@redhat.com>
10 daysmemory: Change memory_region_set_ram_discard_manager() to return the resultChenyi Qiang1-3/+3
Modify memory_region_set_ram_discard_manager() to return -EBUSY if a RamDiscardManager is already set in the MemoryRegion. The caller must handle this failure, such as having virtio-mem undo its actions and fail the realize() process. Opportunistically move the call earlier to avoid complex error handling. This change is beneficial when introducing a new RamDiscardManager instance besides virtio-mem. After ram_block_coordinated_discard_require(true) unlocks all RamDiscardManager instances, only one instance is allowed to be set for one MemoryRegion at present. Suggested-by: David Hildenbrand <david@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Tested-by: Alexey Kardashevskiy <aik@amd.com> Reviewed-by: Alexey Kardashevskiy <aik@amd.com> Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com> Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com> Link: https://lore.kernel.org/r/20250612082747.51539-3-chenyi.qiang@intel.com Signed-off-by: Peter Xu <peterx@redhat.com>
10 daysmemory: Export a helper to get intersection of a MemoryRegionSection with a ↵Chenyi Qiang1-0/+30
given range Rename the helper to memory_region_section_intersect_range() to make it more generic. Meanwhile, define the @end as Int128 and replace the related operations with Int128_* format since the helper is exported as a wider API. Suggested-by: Alexey Kardashevskiy <aik@amd.com> Reviewed-by: Alexey Kardashevskiy <aik@amd.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com> Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com> Link: https://lore.kernel.org/r/20250612082747.51539-2-chenyi.qiang@intel.com Signed-off-by: Peter Xu <peterx@redhat.com>
10 daysMerge tag 'pull-loongarch-20250619' of https://github.com/gaosong715/qemu ↵Stefan Hajnoczi5-0/+18
into staging pull-loongarch-20250619 # -----BEGIN PGP SIGNATURE----- # # iLMEAAEIAB0WIQTKRzxE1qCcGJoZP81FK5aFKyaCFgUCaFPPIgAKCRBFK5aFKyaC # Fq67BACc5EYLK/T0Q2DxDmI84ZmK83GBAsQoB/81CLCDwA4ihotLAjqTB1liKFvY # oFexqza3GBxpiyyw+zAUyrx1X/arnSrCAlgPOF2SIZgj1WnHm/jZb+8mdpgFGZc5 # 6TkB4Dr5rmSa8OJLYIiC7gKYu9K3zEO/Dprgx9nj3D4tb8xRDQ== # =601X # -----END PGP SIGNATURE----- # gpg: Signature made Thu 19 Jun 2025 04:49:38 EDT # gpg: using RSA key CA473C44D6A09C189A193FCD452B96852B268216 # gpg: Good signature from "Song Gao <gaosong@loongson.cn>" [unknown] # 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: CA47 3C44 D6A0 9C18 9A19 3FCD 452B 9685 2B26 8216 * tag 'pull-loongarch-20250619' of https://github.com/gaosong715/qemu: target/loongarch: fix vldi/xvldi raise wrong error hw/loongarch/virt: Add kernel irqchip support hw/loongarch/virt: Disable emulation with IOCSR misc register target/loongarch: Report error with split kernel_irqchip option hw/loongarch/virt: Add reset support for kernel irqchip hw/intc/loongarch_pch: Inject irq line interrupt to kernel hw/intc/loongarch_pch: Add kernel irqchip save and restore function hw/intc/loongarch_pch: Add kernel irqchip realize function hw/intc/loongarch_pch_msi: Inject MSI interrupt to kernel hw/intc/loongarch_ipi: Add kernel irqchip save and restore function hw/intc/loongson_ipi: Add load and save interface with ipi_common class hw/intc/loongarch_ipi: Add kernel irqchip realize function hw/intc/loongarch_extioi: Add kernel irqchip save and restore function hw/intc/loongarch_extioi: Add kernel irqchip realize function Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 daystcg: Split out tcg_gen_gvec_dup_imm_varRichard Henderson1-0/+3
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10 daystcg: Split out tcg_gen_gvec_{add,sub}_varRichard Henderson1-0/+9
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10 daystcg: Split out tcg_gen_gvec_mov_varRichard Henderson1-0/+4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10 daystcg: Split out tcg_gen_gvec_3_varRichard Henderson1-2/+31
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10 daystcg: Split out tcg_gen_gvec_2_varRichard Henderson1-3/+11
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
12 daysMerge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into stagingStefan Hajnoczi8-70/+147
* cleanups for distributed DTB files * scripts/meson-buildoptions: Sort coroutine_backend choices lexicographically * rust/qemu-api: Add initial logging support : rust: pl011: Implement logging * target/i386: fix Win98 * meson: cleanup win32 library detection * rust: safe(r) instance_init * rust: prepare for multiple bindgen invocations * rust: fix new warning * target/i386: Warn about why CPUID_EXT_PDCM is not available * target/i386: small TDX fixes and clarifications * target/i386: support for TDX quote generation # -----BEGIN PGP SIGNATURE----- # # iQFIBAABCgAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmhVRWsUHHBib256aW5p # QHJlZGhhdC5jb20ACgkQv/vSX3jHroOyDQf/YqX2jTZbC4jXdHZT6YiDlYPX9MPx # emFX0S+30X5zNuGYUQufKHEJWshMtklB1seUTQathOPaNeCFK13lY4m1CRbhbrMs # 3iG4ZQf5V+YTuB+JuE8KfclJeAPXDTnIc2uJbtXErIsPBeEGYZelFLnO5HLiMsY3 # iX9S2hSkjvjlikFv/m9ebg9SMP3+/ZunQMZxsDwgb7U3uqtuZagCJTWz0xTHHHxV # Ko5OPA0kIydm0NnlHs2DsF1mivmYSSIfBnxg4KXgmJxd3gNGd9SemBQOwYU68x0T # R3GzI6NLgdP/3mKOsxpM6hFiXBp84eT6zghpdqK5zQFidgz935EXP5WjvQ== # =ttQr # -----END PGP SIGNATURE----- # gpg: Signature made Fri 20 Jun 2025 07:26:35 EDT # 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: (24 commits) i386/tdx: handle TDG.VP.VMCALL<GetQuote> i386/tdx: handle TDG.VP.VMCALL<GetTdVmCallInfo> update Linux headers to v6.16-rc3 i386/tdx: Clarify the error message of mrconfigid/mrowner/mrownerconfig i386/tdx: Fix the typo of the comment of struct TdxGuest i386/cpu: Rename enable_cpuid_0x1f to force_cpuid_0x1f i386/tdx: Error and exit when named cpu model is requested i386/cpu: Warn about why CPUID_EXT_PDCM is not available i386/cpu: Move adjustment of CPUID_EXT_PDCM before feature_dependencies[] check rust: hpet: fix new warning rust: pl011: Add missing logging to match C version rust: pl011: Implement logging rust/qemu-api: Add initial logging support based on C API rust: move rust.bindgen to qemu-api crate rust: prepare variable definitions for multiple bindgen invocations rust: qom: change instance_init to take a ParentInit<> rust: qom: make ParentInit lifetime-invariant rust: qom: introduce ParentInit rust: hpet: fully initialize object during instance_init rust: qemu_api: introduce MaybeUninit field projection ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 daysupdate Linux headers to v6.16-rc3Paolo Bonzini8-70/+147
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-06-19hw/intc/loongarch_pch: Add kernel irqchip save and restore functionBibo Mao2-0/+3
Add save and store funtction if kvm_irqchip_in_kernel() return true, it is to get and set PCH PCI irqchip state from KVM kernel. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-9-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-06-19hw/intc/loongarch_pch: Add kernel irqchip realize functionBibo Mao1-0/+3
Function kvm_pic_realize() is added if kvm_irqchip_in_kernel() return true. It is to notify KVM kernel to create and initialize PCH PCI device in kernel mode. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-8-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-06-19hw/intc/loongarch_ipi: Add kernel irqchip save and restore functionBibo Mao1-0/+2
Add save and store funtction if kvm_irqchip_in_kernel() return true, it is to get and set IPI irqchip state from KVM kernel. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-6-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-06-19hw/intc/loongson_ipi: Add load and save interface with ipi_common classBibo Mao1-0/+2
Add pre_save and post_load interfaces with ipi_common class, here only framework ipi_common adds these interfaces. The defailed implementation is LoongArchIPI child device in later. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-5-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-06-19hw/intc/loongarch_ipi: Add kernel irqchip realize functionBibo Mao1-0/+3
Function kvm_ipi_realize() is added if kvm_irqchip_in_kernel() return true. It is to create and initialize IPI device in kernel mode. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-4-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-06-19hw/intc/loongarch_extioi: Add kernel irqchip save and restore functionBibo Mao1-0/+2
Add save and store funtction if kvm_irqchip_in_kernel() return true, it is to get and set ExtIOI irqchip state from KVM kernel. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-3-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-06-19hw/intc/loongarch_extioi: Add kernel irqchip realize functionBibo Mao1-0/+3
Function kvm_extioi_realize() is added if kvm_irqchip_in_kernel is set. It is to create and initialize ExtIOI device in kernel mode. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-2-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-06-16Merge tag 'pull-target-arm-20250616' of ↵Stefan Hajnoczi3-0/+8
https://git.linaro.org/people/pmaydell/qemu-arm into staging target-arm queue: * hw/arm/virt: Check bypass iommu is not set for iommu-map DT property * tests/functional: Add a test for the realview-eb-mpcore machine * qemu-options.hx: Fix reversed description of icount sleep behavior * target/arm: Define raw write for PMU CLR registers * docs/interop: convert qed_spec.txt to reStructuredText format * hw/arm: make cpu targeted by arm_load_kernel the primary CPU. * hw/intc/arm_gic: introduce a first-cpu-index property * hw/arm/mps2: Configure the AN500 CPU with 16 MPU regions * linux-user/arm: Fix return value of SYS_cacheflush # -----BEGIN PGP SIGNATURE----- # # iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAmhQJLgZHHBldGVyLm1h # eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3k+8EACPyIt6Tie/0kuTXG85r06P # Iqlp59ENb4HNB43bOBlLqNNJydx1GplKnDeDVsz4MyjhtFTZ3xvY+52IbDOgb3YL # 66uJfu1VgdnYoKOpfi3hEr9PM9QxNkENF/3+Fokn+X5tHzhNY4eo/RREQfz2tKJ5 # aKKvzmcZNYwqFLn8TKCNaAfjmqrdwVpuF+rt//4hGULZGwatt8qmlsXWLstozTAz # SPx0utJfvblHj6a+49e0lXaL+xU5yho2J01OiNHrIGtED5Oq2Wmj/q0SV3qPiLDH # hchuDXT71shE2JYoVeINaQpjRWzQNSPXvnEl9SyJ3Ghzop3sOZqE2iPVslvO0l5R # rfrbR2rLnGcRPOwgntGnSMHiW+DH9ldhMUp7UvhlU3/5MJmWX2jpDfZJPsmmdyFH # Evrf64yMO7JlLMQSMkTISZampz8aUgdlgrmQDJ4kGpdkp3GWqLE93eQGHCU16k2j # PzjGxCIeOED4HEeGG3GrPTf0P1dy8WKla2z8ou2ANLqofrKpwFHTuGRl77ETn/bD # 8c11hdS+uJ4Sx/efVPXWQhjCPNwLJL+DlCW0kKbGfTmiBdlcPPzPbrzmPNinVzJs # luSGFzNit7Invfn0KZhy3l0iucMWGPdMDqN0B15RA5fFssdkuxZga5H2kOqCswOe # 3hHo1s5PUbg+x1JAvQvi5g== # =9lWk # -----END PGP SIGNATURE----- # gpg: Signature made Mon 16 Jun 2025 10:05:44 EDT # gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE # gpg: issuer "peter.maydell@linaro.org" # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full] # gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full] # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full] # gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown] # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * tag 'pull-target-arm-20250616' of https://git.linaro.org/people/pmaydell/qemu-arm: linux-user/arm: Fix return value of SYS_cacheflush hw/arm/mps2: Configure the AN500 CPU with 16 MPU regions hw/intc/arm_gic: introduce a first-cpu-index property hw/arm: make cpu targeted by arm_load_kernel the primary CPU. docs/interop: convert qed_spec.txt to reStructuredText format target/arm: Define raw write for PMU CLR registers qemu-options.hx: Fix reversed description of icount sleep behavior tests/functional: Add a test for the realview-eb-mpcore machine hw/arm/virt: Check bypass iommu is not set for iommu-map DT property Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-06-16hw/intc/arm_gic: introduce a first-cpu-index propertyFrederic Konrad2-0/+5
This introduces a first-cpu-index property to the arm-gic, as some SOCs could have two separate GIC (ie: the zynqmp). Signed-off-by: Clément Chigot <chigot@adacore.com> Message-id: 20250526085523.809003-3-chigot@adacore.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: slightly expanded comment documenting GIC property] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-06-13hw/arm: make cpu targeted by arm_load_kernel the primary CPU.Clément Chigot1-0/+3
Currently, arm booting processus assumes that the first_cpu is the CPU that will boot: `arm_load_kernel` is powering off all but the `first_cpu`; `do_cpu_reset` is setting the loader address only for this `first_cpu`. For most of the boards, this isn't an issue as the kernel is loaded and booted on the first CPU anyway. However, for zynqmp, the option "boot-cpu" allows to choose any CPUs. Create a new arm_boot_info entry `primary_cpu` recording which CPU will be boot first. This one is set when `arm_boot_kernel` is called. Signed-off-by: Clément Chigot <chigot@adacore.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20250526085523.809003-2-chigot@adacore.com Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-06-12include/qemu/compiler: add QEMU_UNINITIALIZED attribute macroStefan Hajnoczi1-0/+20
The QEMU_UNINITIALIZED macro is to be used to skip the default compiler variable initialization done by -ftrivial-auto-var-init=zero. Use this in cases where there a method in the device I/O path (or other important hot paths), that has large variables on the stack. A rule of thumb is that "large" means a method with 4kb data in the local stack frame. Any variables which are KB in size, should be annotated with this attribute, to pre-emptively eliminate any potential overhead from the compiler zero'ing memory. Given that this turns off a security hardening feature, when using this to flag variables, it is important that the code is double-checked to ensure there is no possible use of uninitialized data in the method. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-id: 20250610123709.835102-2-berrange@redhat.com [DB: split off patch & rewrite guidance on when to use the annotation] Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-06-11Merge tag 'pull-vfio-20250611' of https://github.com/legoater/qemu into stagingStefan Hajnoczi10-11/+146
vfio queue: * Fixed newly added potential issues in vfio-pci * Added support to report vfio-ap configuration changes * Added prerequisite support for vfio-user * Added first part for VFIO live update support # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEEoPZlSPBIlev+awtgUaNDx8/77KEFAmhJm00ACgkQUaNDx8/7 # 7KHBehAAlbSt+QCPwdNJ/5QPGGPWIQ86acIHaI/sE/lpcJx9FideQhtKTtt0gTOE # ZNGbzfeCnewCM+VLMgkrYZC9DWd9OpEO68tDy6ev577F6ijSR8wzXRtDl2j5Revm # R9gBuOm/cQ6Mafiv8SNPNSGW2tQ0M9Bd4GJRa5K3VBf8kFwPpWEZC/yDWbvSVvwc # 99TFXziIbWJEYGRzG4h7hoEEd/GapZOwTRIPRoRGHznbOPMsxShjIhExn8ZGTlU9 # woaNBPZXS5xjjy5tKyURexu+eyxbR6WsZFyeAA03+HzWEfRzhFc/rhAC6mBbpq7v # 03a/4ewkKZ0fYUf9G2H5YpXTXl6io+qk+irKi99/4GT0oSBMrm+/NcY7u9Hv2MwA # 50h3iXUhLQYzL2G2bSSoBTKOGxV84Xtto9j7dM7fy8e0nYv9rucvKl+V3Ox1Qwv4 # 8+bQsxP5tjmHlXE/n6ckfcrWtSHuWmb3JJ8yxdBttdo3Cz/+KxJ3UjtP9U81RXxY # gepxCRXZmcTfnv1dV6FyjOE6QOhB3WIT5rHmgoQIvHGhtBsLpT2mDlSsMVEQIXvm # ixQnRguwQv9fgEZeYB/ck/ezluOxewBlOv5Q3CPpHQBd2Ykh4N/8xsWpXlKI1KWr # Tj7Nh/2ObqNXbKdmb9nNiuo6eQDkPOm4mr1cs2ncMr7/cRGeKeA= # =KOf3 # -----END PGP SIGNATURE----- # gpg: Signature made Wed 11 Jun 2025 11:05:49 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-20250611' of https://github.com/legoater/qemu: (27 commits) vfio: improve VFIODeviceIOOps docs vfio/pci: export MSI functions vfio/pci: vfio_notifier_cleanup vfio/pci: vfio_notifier_init cpr parameters vfio/pci: pass vector to virq functions vfio/pci: vfio_notifier_init vfio/pci: vfio_pci_vector_init vfio-pci: skip reset during cpr pci: skip reset during cpr pci: export msix_is_pending vfio/container: recover from unmap-all-vaddr failure vfio/container: mdev cpr blocker vfio/container: restore DMA vaddr vfio/container: discard old DMA vaddr vfio/container: preserve descriptors vfio/container: register container for cpr migration: lower handler priority migration: cpr helpers vfio: mark posted writes in region write callbacks vfio: add per-region fd support ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-06-11Merge tag 'hw-misc-20250610' of https://github.com/philmd/qemu into stagingStefan Hajnoczi7-8/+13
Misc HW patches # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmhILpoACgkQ4+MsLN6t # wN4FxA//U3xm1ZJLQnlS+AQp31foxgptVTNej+ZGOfvhYaUSBtFgUhoiXMPJPN4v # pKWBAFgWigaeM9f01T7H55M+Pj0Az2QLZw+Z6Bklu9RjzisZSuIdMZkPWiJXHBFC # 6OMh6pIjyxuYwYltai8gFFP5ENuILETMpFHEfFQtMiAimXhvDKvcQ5Dmi08UcamQ # hOFdia1djmVYIwJCi+V6Mwl/jwql/L1JpBrLyVOFmxGW8p5ZOjJTLL6pC7288dTP # B8Nb9MhWZpbsHiU4GalTOEXQUuAEa/KX9ZhUqW6kLVhguiD5JoCeMhTur40sX+/J # kKl8dSOhHJ0axEII5PxO4XviN1LWC4DATKfXxHjzvwNbJRH4gdBgaf8zqCeuy0TM # 7pOLzyn6ARXoJZTftS9Ezm1MCdCT5eOQ3+YMrLId8M+KBatogJ8uFMRHa8j+khhB # M08FOufxQGQYZsnz9eb+Dexh+Z3/EiUrCJt1X5icJEQ4uwvoo6lwxVnaV1RWYjRX # EnQOvFr38rctDq3UIckBGzfuVmolEc3l/QgENsNb0AIsz0K2P11Xfg3SNnnPBST8 # duFsWD1/nR53wcKrRli0PMezcH/QuUkRqzBlOc2wllcVKJrp71+m2VDClCmH6bBF # gk03V84b96rWkxwrxFB05mOVmdJKxAFAnwRRfIfYp69r9RgHx4A= # =m3BF # -----END PGP SIGNATURE----- # gpg: Signature made Tue 10 Jun 2025 09:09:46 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 'hw-misc-20250610' of https://github.com/philmd/qemu: (24 commits) hw/net/i82596: Factor configure function out hw/net/i82596: Update datasheet URL hw/misc/stm32_rcc: Fix stm32_rcc_write() arguments order hw/riscv/riscv-iommu: Remove definition of RISCVIOMMU[Pci|Sys]Class hw/gpio/aspeed: Fix definition of AspeedGPIOClass hw/virtio/virtio-pmem: Fix definition of VirtIOPMEMClass hw/virtio/virtio-mem: Fix definition of VirtIOMEMClass tests/unit/test-char: Avoid using g_alloca() backends/tpm: Avoid using g_alloca() hw/gpio/pca9552: Avoid using g_newa() hw/core/cpu: Move CacheType to general cpu.h accel/hvf: Fix TYPE_HVF_ACCEL instance size tests/functional: Add a test for the Arduino UNO machine MAINTAINERS: Update Akihiko Odaki's affiliation pc-bios: ensure installed ROMs don't have execute permissions hw/ppc/e500: Use SysBusDevice API to access TYPE_CCSR's internal resources hw/net/fsl_etsec: Set default MAC address hw/ppc/e500: Move clock and TB frequency to machine class hw/hyperv/balloon: Consolidate OBJECT_DEFINE_SIMPLE_TYPE_WITH_INTERFACES hw/core/resetcontainer: Consolidate OBJECT_DECLARE_SIMPLE_TYPE ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-06-11vfio: improve VFIODeviceIOOps docsJohn Levon1-9/+43
Explicitly describe every parameter rather than summarizing. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250611104753.1199796-1-john.levon@nutanix.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11vfio-pci: skip reset during cprSteve Sistare1-0/+2
Do not reset a vfio-pci device during CPR, and do not complain if the kernel's PCI config space changes for non-emulated bits between the vmstate save and load, which can happen due to ongoing interrupt activity. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-12-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11pci: skip reset during cprSteve Sistare1-0/+2
Do not reset a vfio-pci device during CPR. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749576403-25355-1-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11pci: export msix_is_pendingSteve Sistare1-0/+1
Export msix_is_pending for use by cpr. No functional change. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-10-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11vfio/container: recover from unmap-all-vaddr failureSteve Sistare2-0/+13
If there are multiple containers and unmap-all fails for some container, we need to remap vaddr for the other containers for which unmap-all succeeded. Recover by walking all address ranges of all containers to restore the vaddr for each. Do so by invoking the vfio listener callback, and passing a new "remap" flag that tells it to restore a mapping without re-allocating new userland data structures. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-9-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11vfio/container: mdev cpr blockerSteve Sistare2-0/+5
During CPR, after VFIO_DMA_UNMAP_FLAG_VADDR, the vaddr is temporarily invalid, so mediated devices cannot be supported. Add a blocker for them. This restriction will not apply to iommufd containers when CPR is added for them in a future patch. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-8-git-send-email-steven.sistare@oracle.com [ clg: Fixed context change in VFIODevice ] Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11vfio/container: restore DMA vaddrSteve Sistare1-0/+3
In new QEMU, do not register the memory listener at device creation time. Register it later, in the container post_load handler, after all vmstate that may affect regions and mapping boundaries has been loaded. The post_load registration will cause the listener to invoke its callback on each flat section, and the calls will match the mappings remembered by the kernel. The listener calls a special dma_map handler that passes the new VA of each section to the kernel using VFIO_DMA_MAP_FLAG_VADDR. Restore the normal handler at the end. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-7-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11vfio/container: preserve descriptorsSteve Sistare1-0/+6
At vfio creation time, save the value of vfio container, group, and device descriptors in CPR state. On qemu restart, vfio_realize() finds and uses the saved descriptors. During reuse, device and iommu state is already configured, so operations in vfio_realize that would modify the configuration, such as vfio ioctl's, are skipped. The result is that vfio_realize constructs qemu data structures that reflect the current state of the device. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-5-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11vfio/container: register container for cprSteve Sistare2-0/+17
Register a legacy container for cpr-transfer, replacing the generic CPR register call with a more specific legacy container register call. Add a blocker if the kernel does not support VFIO_UPDATE_VADDR or VFIO_UNMAP_ALL. This is mostly boiler plate. The fields to to saved and restored are added in subsequent patches. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-4-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11migration: lower handler prioritySteve Sistare1-1/+5
Define a vmstate priority that is lower than the default, so its handlers run after all default priority handlers. Since 0 is no longer the default priority, translate an uninitialized priority of 0 to MIG_PRI_DEFAULT. CPR for vfio will use this to install handlers for containers that run after handlers for the devices that they contain. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-3-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-06-11migration: cpr helpersSteve Sistare1-0/+5
Add the cpr_incoming_needed, cpr_open_fd, and cpr_resave_fd helpers, for use when adding cpr support for vfio and iommufd. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-2-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
generated by cgit v1.1 at 2025-07-03 10:57:46 +0000