Re: [edk2-devel] [PATCH v2] OvmfPkg/ResetVector: Removing SEV-ES CPUID bit check

2022-01-19 Thread Lendacky, Thomas via groups.io
On 1/13/22 10:30 AM, Peter Gonda wrote: The SEV-ES bit of Fn800-001F[EAX] - Bit 3 is used for a host to determine support for running SEV-ES guests. It should not be checked by a guest to determine if it is running under SEV-ES. The guest should use the SEV_STATUS MSR Bit 1 to determine if

[edk2-devel] [PATCH v2] OvmfPkg/ResetVector: Removing SEV-ES CPUID bit check

2022-01-13 Thread Peter Gonda via groups.io
The SEV-ES bit of Fn800-001F[EAX] - Bit 3 is used for a host to determine support for running SEV-ES guests. It should not be checked by a guest to determine if it is running under SEV-ES. The guest should use the SEV_STATUS MSR Bit 1 to determine if SEV-ES is enabled. This check was not part of