diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2020-05-12 07:54:36 -0700 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-05-12 20:34:38 +0200 |
| commit | 8ab22804efefea9ecf3c68aa00f1fa69c70fcfad (patch) | |
| tree | 9a8dc8b23aab7ff9658b0c55a4e4d70ee00f07ae /arch/x86/kernel/fpu/init.c | |
| parent | 5274e6c172c47241534e970df26a522497086624 (diff) | |
x86/fpu/xstate: Define new macros for supervisor and user xstates
XCNTXT_MASK is 'all supported xfeatures' before introducing supervisor
xstates. Rename it to XFEATURE_MASK_USER_SUPPORTED to make clear that
these are user xstates.
Replace XFEATURE_MASK_SUPERVISOR with the following:
- XFEATURE_MASK_SUPERVISOR_SUPPORTED: Currently nothing. ENQCMD and
Control-flow Enforcement Technology (CET) will be introduced in separate
series.
- XFEATURE_MASK_SUPERVISOR_UNSUPPORTED: Currently only Processor Trace.
- XFEATURE_MASK_SUPERVISOR_ALL: the combination of above.
Co-developed-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20200512145444.15483-3-yu-cheng.yu@intel.com
Diffstat (limited to 'arch/x86/kernel/fpu/init.c')
| -rw-r--r-- | arch/x86/kernel/fpu/init.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c index 6ce7e0a23268..61ddc3a5e5c2 100644 --- a/arch/x86/kernel/fpu/init.c +++ b/arch/x86/kernel/fpu/init.c @@ -224,7 +224,8 @@ static void __init fpu__init_system_xstate_size_legacy(void) */ u64 __init fpu__get_supported_xfeatures_mask(void) { - return XCNTXT_MASK; + return XFEATURE_MASK_USER_SUPPORTED | + XFEATURE_MASK_SUPERVISOR_SUPPORTED; } /* Legacy code to initialize eager fpu mode. */ |