On Tue, Jul 03, 2018 at 08:51:23PM +0200, Thomas Gleixner wrote: > On Tue, 3 Jul 2018, Jarkko Sakkinen wrote: > > x86/msr: Add .... > > > From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> > > > > ENCLS and ENCLU are usable if and only if SGX_ENABLE is set and After > > SGX is activated the IA32_SGXLEPUBKEYHASHn MSRs are writable if > > SGX_LC_WR is set and the feature control is locked. > > > > SGX related bits in IA32_FEATURE_CONTROL cannot be set before SGX is > > activated by the pre-boot firmware. SGX activation is triggered by > > setting bit 0 in the MSR 0x7a. Until SGX is activated, the LE hash MSRs > > are writable to allow pre-boot firmware to lock down the LE root key > > with a non-Intel value. > > > > Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> > > Co-developed-by: Haim Cohen <haim.cohen@xxxxxxxxx> > > Lacks SOB > > > --- > > arch/x86/include/asm/msr-index.h | 8 ++++++++ > > 1 file changed, 8 insertions(+) > > > > diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h > > index fda2114197b3..a7355fb7344f 100644 > > --- a/arch/x86/include/asm/msr-index.h > > +++ b/arch/x86/include/asm/msr-index.h > > @@ -479,6 +479,8 @@ > > #define FEATURE_CONTROL_LOCKED (1<<0) > > #define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX (1<<1) > > #define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX (1<<2) > > +#define FEATURE_CONTROL_SGX_ENABLE (1<<18) > > Tabs not spaces please. checkpatch.pl would have told you > > > +#define FEATURE_CONTROL_SGX_LE_WR (1<<17) > > Thanks, > > tglx Thanks, will refine! /Jarkko
