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 <[e-mail]>
Signed-off-by: Thomas Gleixner <[e-mail]>
Signed-off-by: Chang S. Bae <[e-mail]>
Signed-off-by: Borislav Petkov <[e-mail]>
Link: https://lkml.kernel.org/r/[e-mail]

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

···
 
 #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