Messages in this thread | | | Date | Thu, 11 Nov 2021 14:59:00 +0100 | Subject | Re: [PATCH 0/2] KVM: x86: Sanitize writes to MSR_KVM_PV_EOI_EN | From | Paolo Bonzini <> |
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On 11/8/21 16:28, Vitaly Kuznetsov wrote: > This is a continuation of work started by Li RongQing with > "[PATCH] KVM: x86: disable pv eoi if guest gives a wrong address": > https://lore.kernel.org/kvm/1636078404-48617-1-git-send-email-lirongqing@baidu.com/ > > Instead of resetting 'KVM_MSR_ENABLED' when a bogus address was written to > MSR_KVM_PV_EOI_EN I suggest we refuse to update MSR at all, this aligns > with #GP which is being injected on such writes. > > Vitaly Kuznetsov (2): > KVM: x86: Rename kvm_lapic_enable_pv_eoi() > KVM: x86: Don't update vcpu->arch.pv_eoi.msr_val when a bogus value > was written to MSR_KVM_PV_EOI_EN > > arch/x86/kvm/hyperv.c | 4 ++-- > arch/x86/kvm/lapic.c | 23 ++++++++++++++--------- > arch/x86/kvm/lapic.h | 2 +- > arch/x86/kvm/x86.c | 2 +- > 4 files changed, 18 insertions(+), 13 deletions(-) >
Queued, thanks.
Paolo
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