Re: [PATCH] KVM: x86: handle MSR_IA32_DEBUGCTLMSR with report_ignored_msrs

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On 05/11/20 19:58, Pankaj Gupta wrote:
Windows2016 guest tries to enable LBR (last
branch/interrupt/exception) by setting
MSR_IA32_DEBUGCTLMSR. KVM does not emulate MSR_IA32_DEBUGCTLMSR and
spams the host kernel logs with the below error messages.This patch
fixes this by enabling
error logging only with 'report_ignored_msrs'.

"kvm []: vcpu1, guest rIP: 0xfffff800a8b687d3 kvm_set_msr_common:
MSR_IA32_DEBUGCTLMSR 0x1, nop"

Sounds good, thanks.

Paolo




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