Thread (133 messages) 133 messages, 11 authors, 2024-08-22

Re: (subset) [PATCH v12 02/84] KVM: arm64: Disallow copying MTE to guest memory while KVM is dirty logging

From: Marc Zyngier <maz@kernel.org>
Date: 2024-08-22 14:25:02
Also in: kvm, kvm-riscv, kvmarm, linux-arm-kernel, linux-riscv, linuxppc-dev, lkml, loongarch

On Fri, 26 Jul 2024 16:51:11 -0700, Sean Christopherson wrote:
Disallow copying MTE tags to guest memory while KVM is dirty logging, as
writing guest memory without marking the gfn as dirty in the memslot could
result in userspace failing to migrate the updated page.  Ideally (maybe?),
KVM would simply mark the gfn as dirty, but there is no vCPU to work with,
and presumably the only use case for copy MTE tags _to_ the guest is when
restoring state on the target.

[...]
Applied to next, thanks!

[02/84] KVM: arm64: Disallow copying MTE to guest memory while KVM is dirty logging
        commit: e0b7de4fd18c47ebd47ec0dd1af6503d4071b943

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.

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