Version 3 of adding MTE support for KVM guests. See the previous (v2) posting for background: https://lore.kernel.org/r/20200904160018.29481-1-steven.price%40arm.com These patches add support to KVM to enable MTE within a guest. They are based on Catalin's v9 MTE user-space support series[1] (currently in next). Changes since v2: * MTE is no longer a VCPU feature, instead it is a VM cap. * Being a VM cap means easier probing (check for KVM_CAP_ARM_MTE). * The cap must be set before any VCPUs are created, preventing any shenanigans where MTE is enabled for the guest after memory accesses have been performed. [1] https://lore.kernel.org/r/20200904103029.32083-1-catalin.marinas@xxxxxxx Steven Price (2): arm64: kvm: Save/restore MTE registers arm64: kvm: Introduce MTE VCPU feature arch/arm64/include/asm/kvm_emulate.h | 3 +++ arch/arm64/include/asm/kvm_host.h | 7 +++++++ arch/arm64/include/asm/sysreg.h | 3 ++- arch/arm64/kvm/arm.c | 9 +++++++++ arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 14 ++++++++++++++ arch/arm64/kvm/mmu.c | 15 +++++++++++++++ arch/arm64/kvm/sys_regs.c | 20 +++++++++++++++----- include/uapi/linux/kvm.h | 1 + 8 files changed, 66 insertions(+), 6 deletions(-) -- 2.20.1 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
