Hi Miguel, On 2/27/23 17:37, Miguel Luis wrote: > This series adds ARMv8.3/8.4 nested virtualization support in KVM mode. > > To enable nested virtualization for a guest, the host must expose EL2 > support via QEMU command line switches: > > -machine virt,accel=kvm,virtualization=on > > Inspired on Haibo Xu's previous work [0][1], Marc Zyngier's kvmtool branch [2] > and kernel patches [3] on nested virtualization for aarch64, this has been > tested on an Ampere implementation. > > This series adapts previous work on top of v7.2.0, it considers comments given > at the time and preserves authorship of the original patches. > > [0]: > https://lore.kernel.org/qemu-devel/cover.1616052889.git.haibo...@linaro.org/ > [1]: > https://lore.kernel.org/qemu-devel/cover.1617281290.git.haibo...@linaro.org/ > [2]: > https://git.kernel.org/pub/scm/linux/kernel/git/maz/kvmtool.git/log/?h=arm64/nv-5.16 > [3]: > https://lore.kernel.org/linux-arm-kernel/20230131092504.2880505-1-...@kernel.org/
I rebased the series on top of v8.2. I was able to boot some L2 guests with it, although it still does not work with guests featuring edk2. Do you plan to send a respin or may I do? Thanks Eric > > Miguel Luis (5): > linux-headers: [kvm,arm64] add the necessary definitions to match host > kernel > hw/intc/gicv3: add support for setting KVM vGIC maintenance IRQ > target/arm/kvm: add helper to detect EL2 when using KVM > target/arm: enable feature ARM_FEATURE_EL2 if EL2 is supported > arm/virt: provide virtualization extensions to the guest > > hw/arm/virt.c | 8 +++++++- > hw/intc/arm_gicv3_common.c | 1 + > hw/intc/arm_gicv3_kvm.c | 25 +++++++++++++++++++++++++ > include/hw/intc/arm_gicv3_common.h | 1 + > linux-headers/asm-arm64/kvm.h | 2 ++ > linux-headers/linux/kvm.h | 1 + > target/arm/cpu.h | 2 +- > target/arm/kvm64.c | 21 +++++++++++++++++++++ > target/arm/kvm_arm.h | 12 ++++++++++++ > 9 files changed, 71 insertions(+), 2 deletions(-) >
