On Mon, Oct 19, 2020 at 07:10:58AM -0700, Dave Hansen wrote:
> On 10/2/20 9:50 PM, Jarkko Sakkinen wrote:
> >
> > Add X86_FEATURE_SGX1 and X86_FEATURE_SGX2 from CPUID.(EAX=12H, ECX=0),
> > which describe the level of SGX support available [1].
>
> The SDM says there are 6 leaf functions added
On 10/2/20 9:50 PM, Jarkko Sakkinen wrote:
>
> Add X86_FEATURE_SGX1 and X86_FEATURE_SGX2 from CPUID.(EAX=12H, ECX=0),
> which describe the level of SGX support available [1].
The SDM says there are 6 leaf functions added with SGX2 (SDM Vol 3D
Table 36-2):
ENCLS[EAUG]
ENCLS[EMODPR]
ENCLS[EMODT]
From: Sean Christopherson
Add X86_FEATURE_SGX from CPUID.(EAX=7, ECX=1), which informs whether the
CPU has SGX.
Add X86_FEATURE_SGX1 and X86_FEATURE_SGX2 from CPUID.(EAX=12H, ECX=0),
which describe the level of SGX support available [1].
Add IA32_FEATURE_CONTROL.SGX_ENABLE. BIOS can use this
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