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Subject[PATCH v3 0/2] MTE support for KVM guest
Date
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@arm.com

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

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