Messages in this thread | | | Date | Wed, 23 Feb 2022 18:43:40 +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 6:41 PM, Borislav Petkov wrote: > On Wed, Feb 23, 2022 at 03:04:41PM +0800, Tianyu Lan wrote: >> Current Hyper-V Isolation VM requires AMD_MEM_ENCRYPT option which > > Where is that isolation VM option? Out of tree? > > Because > > $ git grep AMD_MEM_ENCRYPT | grep Kconfig > arch/x86/Kconfig:1540:config AMD_MEM_ENCRYPT > arch/x86/Kconfig:1553:config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT > arch/x86/Kconfig:1555: depends on AMD_MEM_ENCRYPT > > and those ain't it.
Hyper-V code check cpuid during runtime and there is no Hyper-V isolation VM option.
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