| From | Vitaly Kuznetsov <> | Subject | Re: [PATCH v2 00/66] KVM: x86: Introduce KVM cpu caps | Date | Tue, 03 Mar 2020 17:48:23 +0100 |
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Sean Christopherson <sean.j.christopherson@intel.com> writes:
> All AMD patches are build-tested only.
I tried this on my AMD EPYC 7401P with QEMU and '-cpu host' and the only difference in CPUIDs I see is:
# diff -u cpuid_with cpuid_without --- cpuid_with 2020-03-03 11:38:34.786583429 -0500 +++ cpuid_without 2020-03-03 11:43:58.103484420 -0500 @@ -454,16 +454,16 @@ SvmRev: SVM revision = 0x1 (1) SVM Secure Virtual Machine (0x8000000a/edx): nested paging = true - LBR virtualization = true - SVM lock = true + LBR virtualization = false + SVM lock = false NRIP save = true - MSR based TSC rate control = true - VMCB clean bits support = true - flush by ASID = true - decode assists = true + MSR based TSC rate control = false + VMCB clean bits support = false + flush by ASID = false + decode assists = false SSSE3/SSE5 opcode set disable = false - pause intercept filter = true - pause filter threshold = true + pause intercept filter = false + pause filter threshold = false AVIC: AMD virtual interrupt controller = false virtualized VMLOAD/VMSAVE = false virtualized GIF = false These are all 0x8000000a.EDX and Paolo already highlighted the issue (PATCH66). -- Vitaly
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