x86/msr-index: Add MSRs for XFD

mainline inclusion
from mainline-v5.16-rc1
commit dae1bd58
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I590ZC
CVE: NA

Intel-SIG: commit dae1bd58 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: NChang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NChang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211021225527.10184-14-chang.seok.bae@intel.comSigned-off-by: NLin Wang <lin.x.wang@intel.com>

arch/x86/include/asm/msr-index.h

@@ -644,6 +644,8 @@
 
 #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