Messages in this thread | | | Date | Fri, 4 Aug 2023 23:47:07 +0200 | Subject | Re: [PATCH v5 08/19] KVM:x86: Report KVM supported CET MSRs as to-be-saved | From | Paolo Bonzini <> |
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On 8/3/23 06:27, Yang Weijiang wrote: > Add all CET MSRs including the synthesized GUEST_SSP to report list. > PL{0,1,2}_SSP are independent to host XSAVE management with later > patches. MSR_IA32_U_CET and MSR_IA32_PL3_SSP are XSAVE-managed on > host side. MSR_IA32_S_CET/MSR_IA32_INT_SSP_TAB/MSR_KVM_GUEST_SSP > are not XSAVE-managed.
MSR_KVM_GUEST_SSP -> MSR_KVM_SSP
Also please add a comment,
/* * SSP can only be read via RDSSP; writing even requires * destructive and potentially faulting operations such as * SAVEPREVSSP/RSTORSSP or SETSSBSY/CLRSSBSY. Let the host * use a pseudo-MSR that is just a wrapper for the GUEST_SSP * field of the VMCS. */
Paolo
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