RE: [PATCH v3 hyperv-next 1/4] x86/hyperv: Load/save the Isolation Configuration leaf

2021-02-01 Thread Michael Kelley
From: Andrea Parri (Microsoft) Sent: Monday, February 1, 2021 6:48 AM > > If bit 22 of Group B Features is set, the guest has access to the > Isolation Configuration CPUID leaf. On x86, the first four bits > of EAX in this leaf provide the isolation type of the partition; > we entail three isol

[PATCH v3 hyperv-next 1/4] x86/hyperv: Load/save the Isolation Configuration leaf

2021-02-01 Thread Andrea Parri (Microsoft)
If bit 22 of Group B Features is set, the guest has access to the Isolation Configuration CPUID leaf. On x86, the first four bits of EAX in this leaf provide the isolation type of the partition; we entail three isolation types: 'SNP' (hardware-based isolation), 'VBS' (software-based isolation), an