Messages in this thread | | | Date | Wed, 23 Feb 2022 19:02:49 +0800 | Subject | Re: [PATCH 1/4] x86/hyperv: Add missing ARCH_HAS_CC_PLATFORM dependency | From | Tianyu Lan <> |
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On 2/23/2022 6:56 PM, Borislav Petkov wrote: > On Wed, Feb 23, 2022 at 06:43:40PM +0800, Tianyu Lan wrote: >> Hyper-V code check cpuid during runtime and there is no Hyper-V >> isolation VM option. > > So how does "Current Hyper-V Isolation VM requires AMD_MEM_ENCRYPT" work > exactly? > > Please explain in detail and not in piecemeal sentences. > The kernel in the image needs to select AMD_MEM_ENCRYPT option otherwise the kernel can't boot up due to missing SEV support and sev_es_ghcb_hv_call() always return error.
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