On Fri, Apr 09, 2021 at 04:14:09PM -0700, Yu, Yu-cheng wrote:
> > @@ -53,6 +55,8 @@ static short xsave_cpuid_features[] __initdata = {
> > X86_FEATURE_INTEL_PT,
> > X86_FEATURE_PKU,
> > X86_FEATURE_ENQCMD,
> > + X86_FEATURE_CET, /* XFEATURE_CET_USER */
> > + X86_FEATURE_CET, /*
On 4/9/2021 10:14 AM, Borislav Petkov wrote:
On Fri, Apr 09, 2021 at 08:52:52AM -0700, Yu, Yu-cheng wrote:
Recall we had complicated code for the XSAVES features detection in
xstate.c. Dave Hansen proposed the solution and then the whole thing
becomes simple. Because of this flag, even when
On Fri, Apr 09, 2021 at 08:52:52AM -0700, Yu, Yu-cheng wrote:
> Recall we had complicated code for the XSAVES features detection in
> xstate.c. Dave Hansen proposed the solution and then the whole thing
> becomes simple. Because of this flag, even when only the shadow stack is
> available, the
On 4/9/2021 3:12 AM, Borislav Petkov wrote:
On Thu, Apr 01, 2021 at 03:10:38PM -0700, Yu-cheng Yu wrote:
Introduce a software-defined X86_FEATURE_CET, which indicates either Shadow
Stack or Indirect Branch Tracking (or both) is present. Also introduce
related cpu init/setup functions.
On Thu, Apr 01, 2021 at 03:10:38PM -0700, Yu-cheng Yu wrote:
> Introduce a software-defined X86_FEATURE_CET, which indicates either Shadow
> Stack or Indirect Branch Tracking (or both) is present. Also introduce
> related cpu init/setup functions.
>
> Signed-off-by: Yu-cheng Yu
> Cc: Kees Cook
Introduce a software-defined X86_FEATURE_CET, which indicates either Shadow
Stack or Indirect Branch Tracking (or both) is present. Also introduce
related cpu init/setup functions.
Signed-off-by: Yu-cheng Yu
Cc: Kees Cook
---
v24:
- Update #ifdef placement to reflect Kconfig changes of
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