Hello, On Mon, Feb 14, 2022 at 12:43:52PM +0000, Jean-Philippe Brucker wrote: > Replace the VIRTIO_IOMMU_F_BYPASS feature with > VIRTIO_IOMMU_F_BYPASS_CONFIG, which enables a config space bit to switch > global bypass on and off. > > Add a boot-bypass option, which defaults to 'on' to be in line with > other vIOMMUs and to allow running firmware/bootloader that are unaware > of the IOMMU. x86 doesn't need a workaround to boot with virtio-iommu > anymore.
I just wanted to make sure this doesn't fall through, since it is ready for v7.0 Thanks, Jean > > Since v2 [1]: > * Added the new bypass bits to the migration stream. > As discussed on the v2 thread, we assume that cross-version > compatibility is not required for live migration at the moment, so we > only increase the version number. Patch 2 says: "We add the bypass > field to the migration stream without introducing subsections, based > on the assumption that this virtio-iommu device isn't being used in > production enough to require cross-version migration at the moment > (all previous version required workarounds since they didn't support > ACPI and boot-bypass)." > > [1] > https://lore.kernel.org/qemu-devel/20220127142940.671333-1-jean-phili...@linaro.org/ > > Jean-Philippe Brucker (4): > linux-headers: update to v5.17-rc1 > virtio-iommu: Default to bypass during boot > virtio-iommu: Support bypass domain > tests/qtest/virtio-iommu-test: Check bypass config > > include/hw/virtio/virtio-iommu.h | 1 + > include/standard-headers/asm-x86/kvm_para.h | 1 + > include/standard-headers/drm/drm_fourcc.h | 11 ++ > include/standard-headers/linux/ethtool.h | 1 + > include/standard-headers/linux/fuse.h | 60 +++++++- > include/standard-headers/linux/pci_regs.h | 142 +++++++++--------- > include/standard-headers/linux/virtio_gpio.h | 72 +++++++++ > include/standard-headers/linux/virtio_i2c.h | 47 ++++++ > include/standard-headers/linux/virtio_iommu.h | 8 +- > .../standard-headers/linux/virtio_pcidev.h | 65 ++++++++ > include/standard-headers/linux/virtio_scmi.h | 24 +++ > linux-headers/asm-generic/unistd.h | 5 +- > linux-headers/asm-mips/unistd_n32.h | 2 + > linux-headers/asm-mips/unistd_n64.h | 2 + > linux-headers/asm-mips/unistd_o32.h | 2 + > linux-headers/asm-powerpc/unistd_32.h | 2 + > linux-headers/asm-powerpc/unistd_64.h | 2 + > linux-headers/asm-riscv/bitsperlong.h | 14 ++ > linux-headers/asm-riscv/mman.h | 1 + > linux-headers/asm-riscv/unistd.h | 44 ++++++ > linux-headers/asm-s390/unistd_32.h | 2 + > linux-headers/asm-s390/unistd_64.h | 2 + > linux-headers/asm-x86/kvm.h | 16 +- > linux-headers/asm-x86/unistd_32.h | 1 + > linux-headers/asm-x86/unistd_64.h | 1 + > linux-headers/asm-x86/unistd_x32.h | 1 + > linux-headers/linux/kvm.h | 17 +++ > hw/virtio/virtio-iommu.c | 99 ++++++++++-- > tests/qtest/virtio-iommu-test.c | 2 + > hw/virtio/trace-events | 4 +- > 30 files changed, 561 insertions(+), 90 deletions(-) > create mode 100644 include/standard-headers/linux/virtio_gpio.h > create mode 100644 include/standard-headers/linux/virtio_i2c.h > create mode 100644 include/standard-headers/linux/virtio_pcidev.h > create mode 100644 include/standard-headers/linux/virtio_scmi.h > create mode 100644 linux-headers/asm-riscv/bitsperlong.h > create mode 100644 linux-headers/asm-riscv/mman.h > create mode 100644 linux-headers/asm-riscv/unistd.h > > -- > 2.35.1 >
