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
