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| author |   Chang S. Bae <chang.seok.bae@intel.com> | 2021-10-21 15:55:17 -0700 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2021-10-26 10:18:09 +0200 |
| commit | dae1bd58389615d401a84aedc38fa075ef8f7de6 (patch) | |
| tree | 01e8f9c7df443052c9d7542cff4a3fefd83e3467 /arch/x86/kernel/fpu | |
| parent | x86/cpufeatures: Add eXtended Feature Disabling (XFD) feature bit (diff) | |
| download | linux-dev-dae1bd58389615d401a84aedc38fa075ef8f7de6.tar.xz linux-dev-dae1bd58389615d401a84aedc38fa075ef8f7de6.zip | |
x86/msr-index: Add MSRs for XFD
XFD introduces two MSRs:
- IA32_XFD to enable/disable a feature controlled by XFD
- IA32_XFD_ERR to expose to the #NM trap handler which feature
was tried to be used for the first time.
Both use the same xstate-component bitmap format, used by XCR0.
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211021225527.10184-14-chang.seok.bae@intel.com
Diffstat (limited to 'arch/x86/kernel/fpu')
0 files changed, 0 insertions, 0 deletions