On Thu, Jun 18, 2020 at 01:08:23AM +0300, Jarkko Sakkinen wrote: > From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> > > 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 bit to opt-in SGX I'm guessing that wants to be IA32_FEATURE_CONTROL.SGX_ENABLE judging by the diff and the SDM chapter. > before locking the feature control MSR [2]. > > [1] Intel SDM: 36.7.2 Intel® SGX Resource Enumeration Leaves > [2] Intel SDM: 36.7.1 Intel® SGX Opt-In Configuration > > Cc: Borislav Petkov <bp@xxxxxxxxx> > Acked-by: Jethro Beekman <jethro@xxxxxxxxxxxx> > Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> > Co-developed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx> > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx> > --- > arch/x86/include/asm/cpufeature.h | 5 +++-- > arch/x86/include/asm/cpufeatures.h | 7 ++++++- > arch/x86/include/asm/disabled-features.h | 18 +++++++++++++++--- > arch/x86/include/asm/msr-index.h | 1 + > arch/x86/include/asm/required-features.h | 2 +- > arch/x86/kernel/cpu/common.c | 4 ++++ > tools/arch/x86/include/asm/cpufeatures.h | 7 ++++++- Also, please drop this change to tools/, see https://lkml.kernel.org/r/20200622141737.GA30611@xxxxxxxxxx from today. With those addressed: Reviewed-by: Borislav Petkov <bp@xxxxxxx> Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette
