Re: [PATCH v3 0/4] Dirty Ring support (Libvirt)

From: Hyman Huang(黄勇) <huangy81(a)chinatelecom.cn&gt; v3 - rebase master and fix the confilict when apply "conf: introduce dirty_ring_size in struct "_virDomainDef" to current master. v2 - split patchset into 4 patches - leave out the tcg case when building commandline. - handle the VIR_DOMAIN_KVM_DIRTY_RING case independently in , virDomainFeatureDefParse and virDomainDefFeaturesCheckABIStability, do not integrate it with other cases... - add dirty ring size check in virDomainDefFeaturesCheckABIStability - modify zero checks on integers of dirty ring size in a explicit way. - set the default value of dirty ring size in a post-parser callback. - check the absence of kvm_feature in a explicit way. - code clean of virTristateSwitchTypeToString function. this version's modification base on Peter's advices mostly, thanks a lot, please review ! Best Regards ! Hyman Huang(黄勇) v1 since qemu has introduced a dirty ring feature in 6.1.0, may be it's the right time to introduce dirty ring in libvirt meanwhile. this patch add feature named 'dirty-ring', which enable dirty ring feature when starting vm. to try this out, three things has done in this patchset: - introduce QEMU_CAPS_ACCEL so the the libvirt can use it to select the right option when specifying the accelerator type. - switch the option "-machine accel=xxx" to "-accel xxx" when specifying accelerator type once libvirt build QEMU command line, so that dirty-ring-size property can be passed to qemu when start vm. - introduce dirty_ring_size to hold the ring size configured by user and pass dirty_ring_size when building qemu commandline if dirty ring feature enabled. though dirty ring is per-cpu logically, the size of dirty ring is registered by 'struct kvm' in QEMU. so we would like to place the dirty_ring_size as a property of vm in Libvirt as the QEMU do. the dirty ring feature is disabled by default, and if enabled, the default value of ring size if 4096 if size not configured. for more details about dirty ring and "-accel" option, please refer to: https://lore.kernel.org/qemu-devel/20210108165050.406906-10-peterx@redhat... https://lore.kernel.org/qemu-devel/3aa73987-40e8-3619-0723-9f17f73850bd@r... please review, Thanks! Best Regards ! Hyman Huang(黄勇) (4): qemu_capabilities: introduce QEMU_CAPS_ACCEL qemu_command: switch accelerator option to new style conf: introduce dirty_ring_size in struct "_virDomainDef" qemu: support dirty ring feature docs/formatdomain.rst | 16 +++-- docs/schemas/domaincommon.rng | 10 +++ src/conf/domain_conf.c | 74 +++++++++++++++++++++- src/conf/domain_conf.h | 4 ++ src/qemu/qemu_capabilities.c | 2 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 40 +++++++++++- tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_2.11.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_3.0.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_3.0.0.riscv32.xml | 1 + tests/qemucapabilitiesdata/caps_3.0.0.riscv64.xml | 1 + tests/qemucapabilitiesdata/caps_3.0.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_3.0.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_3.1.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_3.1.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_4.0.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_4.0.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml | 1 + tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml | 1 + tests/qemucapabilitiesdata/caps_4.0.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_5.0.0.riscv64.xml | 1 + tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_5.1.0.sparc.xml | 1 + tests/qemucapabilitiesdata/caps_5.1.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_5.2.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_5.2.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_5.2.0.riscv64.xml | 1 + tests/qemucapabilitiesdata/caps_5.2.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_6.0.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml | 1 + ...64-default-cpu-kvm-virt-4.2.aarch64-latest.args | 3 +- .../aarch64-features-sve.aarch64-latest.args | 3 +- .../channel-unix-guestfwd.x86_64-latest.args | 3 +- .../clock-timer-armvtimer.aarch64-latest.args | 3 +- .../console-virtio-unix.x86_64-latest.args | 3 +- .../cpu-Icelake-Server-pconfig.x86_64-3.1.0.args | 3 +- .../cpu-Icelake-Server-pconfig.x86_64-latest.args | 3 +- .../cpu-tsc-frequency.x86_64-4.0.0.args | 3 +- .../cpu-tsc-high-frequency.x86_64-latest.args | 3 +- .../default-video-type-aarch64.aarch64-latest.args | 3 +- .../default-video-type-ppc64.ppc64-latest.args | 3 +- .../default-video-type-s390x.s390x-latest.args | 3 +- .../disk-cdrom-network.x86_64-2.12.0.args | 3 +- .../disk-cdrom-network.x86_64-latest.args | 3 +- .../disk-network-http.x86_64-latest.args | 3 +- .../hugepages-memaccess3.x86_64-latest.args | 3 +- .../intel-iommu-aw-bits.x86_64-latest.args | 3 +- .../intel-iommu-caching-mode.x86_64-latest.args | 3 +- .../intel-iommu-device-iotlb.x86_64-latest.args | 3 +- .../intel-iommu-eim.x86_64-latest.args | 3 +- ...ty-sev-missing-platform-info.x86_64-2.12.0.args | 3 +- .../launch-security-sev.x86_64-2.12.0.args | 3 +- .../launch-security-sev.x86_64-6.0.0.args | 3 +- ...emfd-memory-default-hugepage.x86_64-latest.args | 3 +- .../memfd-memory-numa.x86_64-latest.args | 3 +- .../memory-hotplug-virtio-pmem.x86_64-5.2.0.args | 3 +- .../memory-hotplug-virtio-pmem.x86_64-latest.args | 3 +- .../os-firmware-bios.x86_64-latest.args | 3 +- ...irmware-efi-no-enrolled-keys.x86_64-latest.args | 3 +- .../os-firmware-efi-secboot.x86_64-latest.args | 3 +- .../os-firmware-efi.x86_64-latest.args | 3 +- .../parallel-unix-chardev.x86_64-latest.args | 3 +- ...4-default-cpu-kvm-pseries-2.7.ppc64-latest.args | 3 +- ...4-default-cpu-kvm-pseries-3.1.ppc64-latest.args | 3 +- ...4-default-cpu-kvm-pseries-4.2.ppc64-latest.args | 3 +- ...efault-cpu-kvm-ccw-virtio-2.7.s390x-latest.args | 3 +- ...efault-cpu-kvm-ccw-virtio-4.2.s390x-latest.args | 3 +- .../smartcard-passthrough-unix.x86_64-latest.args | 3 +- .../usb-redir-unix.x86_64-latest.args | 3 +- .../vhost-user-fs-fd-memory.x86_64-latest.args | 3 +- .../virtio-rng-builtin.x86_64-5.2.0.args | 3 +- .../virtio-rng-builtin.x86_64-latest.args | 3 +- .../virtio-rng-egd-unix.x86_64-5.2.0.args | 3 +- .../virtio-rng-egd-unix.x86_64-latest.args | 3 +- ...86_64-default-cpu-kvm-pc-4.2.x86_64-latest.args | 3 +- ...6_64-default-cpu-kvm-q35-4.2.x86_64-latest.args | 3 +- 91 files changed, 268 insertions(+), 55 deletions(-)