[PATCH v10 07/20] x86/msr: Add variable MTRR base/mask and x2apic ID registers

Ross Philipson ross.philipson at oracle.com
Mon Aug 26 15:38:22 PDT 2024


These values are needed by Secure Launch to locate particular CPUs
during AP startup and to restore the MTRR state after a TXT launch.

Signed-off-by: Ross Philipson <ross.philipson at oracle.com>
---
 arch/x86/include/asm/msr-index.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 82c6a4d350e0..9fbc0e554f99 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -348,6 +348,9 @@
 #define MSR_IA32_RTIT_OUTPUT_BASE	0x00000560
 #define MSR_IA32_RTIT_OUTPUT_MASK	0x00000561
 
+#define MSR_MTRRphysBase0		0x00000200
+#define MSR_MTRRphysMask0		0x00000201
+
 #define MSR_MTRRfix64K_00000		0x00000250
 #define MSR_MTRRfix16K_80000		0x00000258
 #define MSR_MTRRfix16K_A0000		0x00000259
@@ -859,6 +862,8 @@
 #define MSR_IA32_APICBASE_ENABLE	(1<<11)
 #define MSR_IA32_APICBASE_BASE		(0xfffff<<12)
 
+#define MSR_IA32_X2APIC_APICID		0x00000802
+
 #define MSR_IA32_UCODE_WRITE		0x00000079
 #define MSR_IA32_UCODE_REV		0x0000008b
 
-- 
2.39.3




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