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SubjectRe: [PATCH] x86/sev: Add AMD_SEV_ES_GUEST Kconfig for including SEV-ES support
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On 18/01/21 21:26, Borislav Petkov wrote:
> On Mon, Jan 18, 2021 at 06:59:38PM +0100, Paolo Bonzini wrote:
>> On 16/01/21 01:25, Sean Christopherson wrote:
>>>
>>> @@ -1527,12 +1527,14 @@ config AMD_MEM_ENCRYPT
>>> select DYNAMIC_PHYSICAL_MASK
>>> select ARCH_USE_MEMREMAP_PROT
>>> select ARCH_HAS_FORCE_DMA_UNENCRYPTED
>>> - select INSTRUCTION_DECODER
>>> help
>>> Say yes to enable support for the encryption of system memory.
>>> This requires an AMD processor that supports Secure Memory
>>> Encryption (SME).
>>> + This also enables support for running as a Secure Encrypted
>>> + Virtualization (SEV) guest.
>>> +
>>> config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
>>> bool "Activate AMD Secure Memory Encryption (SME) by default"
>>> default y
>>> @@ -1547,6 +1549,15 @@ config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
>>> If set to N, then the encryption of system memory can be
>>> activated with the mem_encrypt=on command line option.
>>> +config AMD_SEV_ES_GUEST
>>> + bool "AMD Secure Encrypted Virtualization - Encrypted State (SEV-ES) Guest support"
>>> + depends on AMD_MEM_ENCRYPT
>>> + select INSTRUCTION_DECODER
>>> + help
>>> + Enable support for running as a Secure Encrypted Virtualization -
>>> + Encrypted State (SEV-ES) Guest. This enables SEV-ES boot protocol
>>> + changes, #VC handling, SEV-ES specific hypercalls, etc...
>>> +
>>
>> Queued, thanks.
>
> Say, Paolo, why are you queuing a patch which goes through tip, if at all?

Right you are, unqueued. I would have caught the mistake before
actually crystallizing the hashes, but thanks for noticing!

Sean, please send a v2 that removes the help change for AMD_MEM_ENCRYPT,
too.

Thanks,

Paolo

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