Messages in this thread | | | Subject | Re: [PATCH v2 2/3] KVM: vmx: Emulate MSR IA32_UMWAIT_CONTROL | From | Paolo Bonzini <> | Date | Wed, 29 May 2019 03:29:55 +0200 |
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On 24/05/19 09:56, Tao Xu wrote: > + > + if (rdmsrl_safe(MSR_IA32_UMWAIT_CONTROL, &host_umwait_control)) > + return; > +
Does the host value ever change? If not, this can perhaps be read once when kvm_intel is loaded. And if it changes often, it should be shadowed into a percpu variable.
Paolo
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