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x86/msr-index: Add MSRs for XFD

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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
This commit is contained in:
Chang S. Bae 2021-10-21 15:55:17 -07:00 • committed by Borislav Petkov
parent c351101678
commit dae1bd5838
1 changed files with 2 additions and 0 deletions
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2
arch/x86/include/asm/msr-index.h
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@ -625,6 +625,8 @@
#define MSR_IA32_BNDCFGS_RSVD 0x00000ffc
#define MSR_IA32_XFD 0x000001c4
#define MSR_IA32_XFD_ERR 0x000001c5
#define MSR_IA32_XSS 0x00000da0
#define MSR_IA32_APICBASE 0x0000001b