[edk2-devel] [PATCH v1] UefiCpuPkg/Library/MpInitLib: fix SEV-ES AP bootinng failure

2024-07-30 Thread Wencheng Yang
According to SEV-ES Guest-Hypervisor Communication Block Standardization section 4.3 SMP Booting, the subsequent reset requires the AP enters Reset Hold state either by AP Reset Hold NAE event or AP Reset Hold Request MSR Protocol. If the AP is not in AP Reset Hold state, it may miss subsequent IN

[edk2-devel] [PATCH v1] UefiCpuPkg/Library/MpInitLib: fix SEV-ES AP bootinng failure

2024-07-31 Thread Wencheng Yang
According to SEV-ES Guest-Hypervisor Communication Block Standardization section 4.3 SMP Booting, the subsequent reset requires the AP enters Reset Hold state either by AP Reset Hold NAE event or AP Reset Hold Request MSR Protocol. If the AP is not in AP Reset Hold state, it may miss subsequent IN

Re: [edk2-devel] [PATCH v1] UefiCpuPkg/Library/MpInitLib: fix SEV-ES AP bootinng failure

2024-08-01 Thread Lendacky, Thomas via groups.io
On 7/31/24 05:22, Wencheng Yang via groups.io wrote: > According to SEV-ES Guest-Hypervisor Communication Block Standardization > section 4.3 SMP Booting, the subsequent reset requires the AP enters > Reset Hold state either by AP Reset Hold NAE event or > AP Reset Hold Request MSR Protocol. > > I