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[PATCH qemu-8.2.0 00/30] Cross-Generation Live Migration
by Jinqian Yang 04 Sep '25

04 Sep '25

Part1: rework id register storage Cornelia Huck ----------------------------------------------------------------- Patch#1 arm/cpu: Add sysreg definitions in cpu-sysregs.h Patch#2 arm/cpu: Store aa64isar0/aa64zfr0 into the idregs arrays Patch#3 arm/cpu: Store aa64isar1/2 into the idregs array Patch#4 arm/cpu: Store aa64pfr0/1 into the idregs array Patch#5 arm/cpu: Store aa64mmfr0-2 into the idregs array Patch#6 arm/cpu: Store aa64dfr0/1 into the idregs array Patch#7 arm/cpu: Store aa64dfr0/1 into the idregs array Patch#8 arm/cpu: Store aa64smfr0 into the idregs array Patch#9 arm/cpu: Store id_isar0-7 into the idregs array Patch#10 arm/cpu: Store id_pfr0/1/2 into the idregs array Patch#11 arm/cpu: Store id_mmfr0-5 into the idregs array Patch#12 arm/cpu: Add sysreg generation scripts Patch#13 arm/cpu: switch to a generated cpu-sysregs.h.inc Part2: Introduce a customizable aarch64 KVM host model ----------------------------------------------------------------- Patch#14 arm/kvm: use fd instead of fdarray[2] Patch#15 arm/cpu: Add infra to handle generated ID register definitions Patch#16 arm/cpu: Add sysreg properties generation Patch#17 arm/cpu: Add generated sysreg properties Patch#18 kvm: kvm_get_writable_id_regs Patch#19 arm/cpu: accessors for writable id registers Patch#20 arm/kvm: Allow reading all the writable ID registers Patch#21 arm/kvm: write back modified ID regs to KVM Patch#22 arm/cpu: more customization for the kvm host cpu model Patch#23 arm-qmp-cmds: introspection for ID register props Patch#24 arm/cpu-features: document ID reg properties Patch#25 arm/cpu: manually make IDR/REVIDR/AIDR writable Patch#26 arm/cpu: enable MIDR writable Part3: Errata management for VM Live migration ----------------------------------------------------------------- Patch#27 target/arm/kvm: Add SMMC hypercall definitions Patch#28 hw/arm/virt: Initial support to set target_impl CPUs Patch#29 target/arm/kvm: Use PSCI_VERSIOn for version info Patch#30 target/arm/kvm: Set DISCOVER_IMPL_* hypercalls Cornelia Huck (7): arm/cpu: switch to a generated cpu-sysregs.h.inc arm/kvm: use fd instead of fdarray[2] arm/cpu: Add generated sysreg properties kvm: kvm_get_writable_id_regs arm/cpu: accessors for writable id registers arm-qmp-cmds: introspection for ID register props arm/cpu-features: document ID reg properties Eric Auger (17): arm/cpu: Add sysreg definitions in cpu-sysregs.h arm/cpu: Store aa64isar0/aa64zfr0 into the idregs arrays arm/cpu: Store aa64isar1/2 into the idregs array arm/cpu: Store aa64pfr0/1 into the idregs array arm/cpu: Store aa64mmfr0-2 into the idregs array arm/cpu: Store aa64dfr0/1 into the idregs array arm/cpu: Store aa64smfr0 into the idregs array arm/cpu: Store id_isar0-7 into the idregs array arm/cpu: Store id_pfr0/1/2 into the idregs array arm/cpu: Store id_dfr0/1 into the idregs array arm/cpu: Store id_mmfr0-5 into the idregs array arm/cpu: Add sysreg generation scripts arm/cpu: Add infra to handle generated ID register definitions arm/cpu: Add sysreg properties generation arm/kvm: Allow reading all the writable ID registers arm/kvm: write back modified ID regs to KVM arm/cpu: more customization for the kvm host cpu model Qingtong Jia (2): arm/cpu: manually make IDR/REVIDR/AIDR writable arm/cpu: enable MIDR writable Shameer Kolothum (4): target/arm/kvm: Add SMMC hypercall definitions hw/arm/virt: Initial support to set target_impl CPUs target/arm/kvm: Use PSCI_VERSIOn for version info target/arm/kvm: Set DISCOVER_IMPL_* hypercalls MAINTAINERS | 1 + accel/kvm/kvm-all.c | 7 + docs/system/arm/cpu-features.rst | 104 +++- hw/arm/virt.c | 65 ++- hw/intc/armv7m_nvic.c | 27 +- include/hw/boards.h | 3 + scripts/arm-gen-cpu-sysregs-header.awk | 40 ++ scripts/gen-cpu-sysreg-properties.awk | 346 +++++++++++ scripts/update-aarch64-sysreg-code.sh | 35 ++ target/arm/arm-qmp-cmds.c | 19 + target/arm/cpu-custom.h | 60 ++ target/arm/cpu-features.h | 295 +++++----- target/arm/cpu-sysreg-properties.c | 764 +++++++++++++++++++++++++ target/arm/cpu-sysregs.h | 48 ++ target/arm/cpu-sysregs.h.inc | 55 ++ target/arm/cpu.c | 124 ++-- target/arm/cpu.h | 126 +++- target/arm/cpu64.c | 202 ++++--- target/arm/helper.c | 66 +-- target/arm/hvf/hvf.c | 23 +- target/arm/internals.h | 6 +- target/arm/kvm-rme.c | 5 +- target/arm/kvm.c | 188 +++++- target/arm/kvm64.c | 365 +++++++++--- target/arm/kvm_arm.h | 46 +- target/arm/meson.build | 1 + target/arm/ptw.c | 6 +- target/arm/tcg/cpu32.c | 498 ++++++++-------- target/arm/tcg/cpu64.c | 455 +++++++-------- target/arm/trace-events | 8 + 30 files changed, 3035 insertions(+), 953 deletions(-) create mode 100755 scripts/arm-gen-cpu-sysregs-header.awk create mode 100755 scripts/gen-cpu-sysreg-properties.awk create mode 100755 scripts/update-aarch64-sysreg-code.sh create mode 100644 target/arm/cpu-custom.h create mode 100644 target/arm/cpu-sysreg-properties.c create mode 100644 target/arm/cpu-sysregs.h create mode 100644 target/arm/cpu-sysregs.h.inc -- 2.33.0

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[PATCH qemu-8.2 0/1] hw/intc: fix the issue of vNMI not supporting live migration
by Jinqian Yang 28 Aug '25

28 Aug '25

Jinqian Yang (1): hw/intc: fix the issue of vNMI not supporting live migration hw/intc/arm_gicv3_common.c | 2 ++ hw/intc/arm_gicv3_kvm.c | 5 +++++ hw/intc/gicv3_internal.h | 1 + include/hw/intc/arm_gicv3_common.h | 1 + 4 files changed, 9 insertions(+) -- 2.33.0

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openEuler Virt SIG 例会
by openEuler conference 22 Aug '25

22 Aug '25

您好！ Virt 邀请您参加 2025-08-28 14:30 召开的WeLink会议(自动录制) 会议主题：openEuler Virt SIG 例会会议链接：https://meeting.huaweicloud.com:36443/#/j/981534504 会议纪要：https://etherpad.openeuler.org/p/Virt-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Virt invites you to attend the WeLink conference(auto recording) will be held at 2025-08-28 14:30, The subject of the conference is openEuler Virt SIG 例会 You can join the meeting at https://meeting.huaweicloud.com:36443/#/j/981534504 Add topics at https://etherpad.openeuler.org/p/Virt-meetings More information: https://www.openeuler.org/en/

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openEuler Virt SIG例会
by openEuler conference 12 Aug '25

12 Aug '25

您好！ Virt 邀请您参加 2025-08-22 14:30 召开的Tencent会议(自动录制) 会议主题：openEuler Virt SIG例会会议链接：https://meeting.tencent.com/dm/1g3eBGFmgPvK 会议纪要：https://etherpad.openeuler.org/p/Virt-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Virt invites you to attend the Tencent conference(auto recording) will be held at 2025-08-22 14:30, The subject of the conference is openEuler Virt SIG例会 You can join the meeting at https://meeting.tencent.com/dm/1g3eBGFmgPvK Add topics at https://etherpad.openeuler.org/p/Virt-meetings More information: https://www.openeuler.org/en/

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openEuler Vrit SIG 例会
by openEuler conference 03 Jul '25

03 Jul '25

您好！ Virt 邀请您参加 2025-07-11 14:30 召开的WeLink会议(自动录制) 会议主题：openEuler Vrit SIG 例会会议链接：https://meeting.huaweicloud.com:36443/#/j/967395646 会议纪要：https://etherpad.openeuler.org/p/Virt-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Virt invites you to attend the WeLink conference(auto recording) will be held at 2025-07-11 14:30, The subject of the conference is openEuler Vrit SIG 例会 You can join the meeting at https://meeting.huaweicloud.com:36443/#/j/967395646 Add topics at https://etherpad.openeuler.org/p/Virt-meetings More information: https://www.openeuler.org/en/

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[PATCH] Revert "backends/iommufd: Make iommufd_backend_*() return bool"
by Zhou Wang 13 Jun '25

13 Jun '25

Revert "backends/iommufd: Make iommufd_backend_*() return bool" and fix the way of vdpa codes use related iommufd APIs. Signed-off-by: Zhou Wang <wangzhou1(a)hisilicon.com> Signed-off-by: Jian Cai <caijian11(a)h-partners.com> --- backends/iommufd.c | 29 ++++++++++++++++------------- backends/trace-events | 4 ++-- hw/virtio/vdpa-dev-iommufd.c | 6 +++--- include/sysemu/iommufd.h | 6 +++--- 4 files changed, 24 insertions(+), 21 deletions(-) diff --git a/backends/iommufd.c b/backends/iommufd.c index 62df6e41f0..4446efaa32 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -74,21 +74,23 @@ static void iommufd_backend_class_init(ObjectClass *oc, void *data) object_class_property_add_str(oc, "fd", NULL, iommufd_backend_set_fd); } -bool iommufd_backend_connect(IOMMUFDBackend *be, Error **errp) +int iommufd_backend_connect(IOMMUFDBackend *be, Error **errp) { - int fd; + int fd, ret = 0; if (be->owned && !be->users) { fd = qemu_open("/dev/iommu", O_RDWR, errp); if (fd < 0) { - return false; + ret = fd; + goto out; } be->fd = fd; } be->users++; - - trace_iommufd_backend_connect(be->fd, be->owned, be->users); - return true; +out: + trace_iommufd_backend_connect(be->fd, be->owned, + be->users, ret); + return ret; } void iommufd_backend_disconnect(IOMMUFDBackend *be) @@ -105,24 +107,25 @@ out: trace_iommufd_backend_disconnect(be->fd, be->users); } -bool iommufd_backend_alloc_ioas(IOMMUFDBackend *be, uint32_t *ioas_id, - Error **errp) +int iommufd_backend_alloc_ioas(IOMMUFDBackend *be, uint32_t *ioas_id, + Error **errp) { - int fd = be->fd; + int ret, fd = be->fd; struct iommu_ioas_alloc alloc_data = { .size = sizeof(alloc_data), .flags = 0, }; - if (ioctl(fd, IOMMU_IOAS_ALLOC, &alloc_data)) { + ret = ioctl(fd, IOMMU_IOAS_ALLOC, &alloc_data); + if (ret) { error_setg_errno(errp, errno, "Failed to allocate ioas"); - return false; + return ret; } *ioas_id = alloc_data.out_ioas_id; - trace_iommufd_backend_alloc_ioas(fd, *ioas_id); + trace_iommufd_backend_alloc_ioas(fd, *ioas_id, ret); - return true; + return ret; } void iommufd_backend_free_id(IOMMUFDBackend *be, uint32_t id) diff --git a/backends/trace-events b/backends/trace-events index 8fe77149b2..f8592a2711 100644 --- a/backends/trace-events +++ b/backends/trace-events @@ -7,13 +7,13 @@ dbus_vmstate_loading(const char *id) "id: %s" dbus_vmstate_saving(const char *id) "id: %s" # iommufd.c -iommufd_backend_connect(int fd, bool owned, uint32_t users) "fd=%d owned=%d users=%d" +iommufd_backend_connect(int fd, bool owned, uint32_t users, int ret) "fd=%d owned=%d users=%d (%d)" iommufd_backend_disconnect(int fd, uint32_t users) "fd=%d users=%d" iommu_backend_set_fd(int fd) "pre-opened /dev/iommu fd=%d" iommufd_backend_map_dma(int iommufd, uint32_t ioas, uint64_t iova, uint64_t size, void *vaddr, bool readonly, int ret) " iommufd=%d ioas=%d iova=0x%"PRIx64" size=0x%"PRIx64" addr=%p readonly=%d (%d)" iommufd_backend_unmap_dma_non_exist(int iommufd, uint32_t ioas, uint64_t iova, uint64_t size, int ret) " Unmap nonexistent mapping: iommufd=%d ioas=%d iova=0x%"PRIx64" size=0x%"PRIx64" (%d)" iommufd_backend_unmap_dma(int iommufd, uint32_t ioas, uint64_t iova, uint64_t size, int ret) " iommufd=%d ioas=%d iova=0x%"PRIx64" size=0x%"PRIx64" (%d)" -iommufd_backend_alloc_ioas(int iommufd, uint32_t ioas) " iommufd=%d ioas=%d" +iommufd_backend_alloc_ioas(int iommufd, uint32_t ioas, int ret) " iommufd=%d ioas=%d (%d)" iommufd_backend_alloc_hwpt(int iommufd, uint32_t dev_id, uint32_t pt_id, uint32_t flags, uint32_t hwpt_type, uint32_t len, uint64_t data_ptr, uint32_t out_hwpt_id, int ret) " iommufd=%d dev_id=%u pt_id=%u flags=0x%x hwpt_type=%u len=%u data_ptr=0x%"PRIx64" out_hwpt=%u (%d)" iommufd_backend_free_id(int iommufd, uint32_t id, int ret) " iommufd=%d id=%d (%d)" iommufd_backend_set_dirty(int iommufd, uint32_t hwpt_id, bool start, int ret) " iommufd=%d hwpt=%u enable=%d (%d)" diff --git a/hw/virtio/vdpa-dev-iommufd.c b/hw/virtio/vdpa-dev-iommufd.c index 2b0498f9dc..f5718bae99 100644 --- a/hw/virtio/vdpa-dev-iommufd.c +++ b/hw/virtio/vdpa-dev-iommufd.c @@ -186,12 +186,12 @@ static int vhost_vdpa_container_connect_iommufd(VDPAIOMMUFDContainer *container) return -1; } - if (!iommufd_backend_connect(iommufd, &err)) { + if (iommufd_backend_connect(iommufd, &err)) { error_report_err(err); return -1; } - if (!iommufd_backend_alloc_ioas(iommufd, &ioas_id, &err)) { + if (iommufd_backend_alloc_ioas(iommufd, &ioas_id, &err)) { error_report_err(err); iommufd_backend_disconnect(iommufd); return -1; @@ -480,4 +480,4 @@ void vhost_vdpa_detach_container(VhostVdpaDevice *vdev) vhost_vdpa_container_disconnect_iommufd(container); vhost_vdpa_destroy_container(container); -} \ No newline at end of file +} diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index 0531a4ad98..908c94d811 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -43,11 +43,11 @@ typedef struct IOMMUFDViommu { uint32_t viommu_id; } IOMMUFDViommu; -bool iommufd_backend_connect(IOMMUFDBackend *be, Error **errp); +int iommufd_backend_connect(IOMMUFDBackend *be, Error **errp); void iommufd_backend_disconnect(IOMMUFDBackend *be); -bool iommufd_backend_alloc_ioas(IOMMUFDBackend *be, uint32_t *ioas_id, - Error **errp); +int iommufd_backend_alloc_ioas(IOMMUFDBackend *be, uint32_t *ioas_id, + Error **errp); void iommufd_backend_free_id(IOMMUFDBackend *be, uint32_t id); int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova, ram_addr_t size, void *vaddr, bool readonly); -- 2.43.0

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openEuler Virt SIG 6月例会
by openEuler conference 30 May '25

30 May '25

您好！ Virt 邀请您参加 2025-06-13 14:30 召开的WeLink会议(自动录制) 会议主题：openEuler Virt SIG 6月例会会议链接：https://meeting.huaweicloud.com:36443/#/j/965679214 会议纪要：https://etherpad.openeuler.org/p/Virt-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Virt invites you to attend the WeLink conference(auto recording) will be held at 2025-06-13 14:30, The subject of the conference is openEuler Virt SIG 6月例会 You can join the meeting at https://meeting.huaweicloud.com:36443/#/j/965679214 Add topics at https://etherpad.openeuler.org/p/Virt-meetings More information: https://www.openeuler.org/en/

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[PATCH qemu-8.2.0 v2 0/2] IPIV-BUGFIX for HIP12
by Jinqian Yang 16 May '25

16 May '25

Jinqian Yang (2): Revert "target/arm: Change arm_cpu_mp_affinity when enabled IPIV feature" target/arm: support the IPIV feature linux-headers/linux/kvm.h | 3 +-- target/arm/cpu.c | 22 +++------------------- target/arm/kvm.c | 17 +++++++++++++++++ 3 files changed, 21 insertions(+), 21 deletions(-) -- 2.33.0

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[PATCH qemu-8.2.0 0/2] IPIV-BUGFIX for HIP12
by Jinqian Yang 14 May '25

14 May '25

Patch#1 Revert "target/arm: Change arm_cpu_mp_affinity when enabled IPIV feature" Patch#2 target/arm: support the IPIV feature Jinqian Yang (2): Revert "target/arm: Change arm_cpu_mp_affinity when enabled IPIV feature" target/arm: support the IPIV feature linux-headers/linux/kvm.h | 2 -- target/arm/cpu.c | 22 +++------------------- target/arm/kvm.c | 17 +++++++++++++++++ 3 files changed, 20 insertions(+), 21 deletions(-) -- 2.33.0

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[PATCH qemu-8.2.0 0/1] Add support for IPIv
by Jinqian Yang 15 Apr '25

15 Apr '25

Patch#1 Change arm_cpu_mp_affinity when enabled IPIV feature Xiang Chen (1): target/arm: Change arm_cpu_mp_affinity when enabled IPIV feature linux-headers/linux/kvm.h | 1 + target/arm/cpu.c | 22 +++++++++++++++++++--- 2 files changed, 20 insertions(+), 3 deletions(-) -- 2.33.0

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