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Message-Id: <1242638585-18470-33-git-send-email-avi@redhat.com> Date: Mon, 18 May 2009 12:22:54 +0300 From: Avi Kivity <avi@...hat.com> To: linux-kernel@...r.kernel.org Cc: kvm@...r.kernel.org Subject: [PATCH 32/43] KVM: x86: Ignore reads to EVNTSEL MSRs From: Amit Shah <amit.shah@...hat.com> We ignore writes to the performance counters and performance event selector registers already. Kaspersky antivirus reads the eventsel MSR causing it to crash with the current behaviour. Return 0 as data when the eventsel registers are read to stop the crash. Signed-off-by: Amit Shah <amit.shah@...hat.com> Signed-off-by: Avi Kivity <avi@...hat.com> --- arch/x86/kvm/x86.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a27a64c..0131b5f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -891,6 +891,8 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_IA32_LASTINTFROMIP: case MSR_IA32_LASTINTTOIP: case MSR_VM_HSAVE_PA: + case MSR_P6_EVNTSEL0: + case MSR_P6_EVNTSEL1: data = 0; break; case MSR_MTRRcap: -- 1.6.0.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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