Messages in this thread | | | Date | Fri, 4 Aug 2023 23:43:15 +0200 | Subject | Re: [PATCH v5 04/19] KVM:x86: Refresh CPUID on write to guest MSR_IA32_XSS | From | Paolo Bonzini <> |
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On 8/4/23 18:02, Sean Christopherson wrote: >> Update CPUID(EAX=0DH,ECX=1) when the guest's XSS is modified. >> CPUID(EAX=0DH,ECX=1).EBX reports required storage size of >> all enabled xstate features in XCR0 | XSS. Guest can allocate >> sufficient xsave buffer based on the info. > > Please wrap changelogs closer to ~75 chars. I'm pretty sure this isn't the first > time I've made this request...
I suspect this is because of the long "word" CPUID(EAX=0DH,ECX=1).EBX. It would make the lengths less homogeneous if lines 1 stayed the same but lines 2-4 became longer.
Paolo
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