[PATCH v12 14/37] x86/cpu: Add MSR numbers for FRED configuration

[Xin Li]

From: "H. Peter Anvin (Intel)" <hpa@xxxxxxxxx>

Add MSR numbers for the FRED configuration registers per FRED spec 5.0.

Originally-by: Megha Dey <megha.dey@xxxxxxxxx>
Signed-off-by: H. Peter Anvin (Intel) <hpa@xxxxxxxxx>
Tested-by: Shan Kang <shan.kang@xxxxxxxxx>
Signed-off-by: Xin Li <xin3.li@xxxxxxxxx>
---
 arch/x86/include/asm/msr-index.h       | 13 ++++++++++++-
 tools/arch/x86/include/asm/msr-index.h | 13 ++++++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 6a6b0f763f67..200d7715696d 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -36,8 +36,19 @@
 #define EFER_FFXSR		(1<<_EFER_FFXSR)
 #define EFER_AUTOIBRS		(1<<_EFER_AUTOIBRS)
 
-/* Intel MSRs. Some also available on other CPUs */
+/* FRED MSRs */
+#define MSR_IA32_FRED_RSP0	0x1cc			/* Level 0 stack pointer */
+#define MSR_IA32_FRED_RSP1	0x1cd			/* Level 1 stack pointer */
+#define MSR_IA32_FRED_RSP2	0x1ce			/* Level 2 stack pointer */
+#define MSR_IA32_FRED_RSP3	0x1cf			/* Level 3 stack pointer */
+#define MSR_IA32_FRED_STKLVLS	0x1d0			/* Exception stack levels */
+#define MSR_IA32_FRED_SSP0	MSR_IA32_PL0_SSP	/* Level 0 shadow stack pointer */
+#define MSR_IA32_FRED_SSP1	0x1d1			/* Level 1 shadow stack pointer */
+#define MSR_IA32_FRED_SSP2	0x1d2			/* Level 2 shadow stack pointer */
+#define MSR_IA32_FRED_SSP3	0x1d3			/* Level 3 shadow stack pointer */
+#define MSR_IA32_FRED_CONFIG	0x1d4			/* Entrypoint and interrupt stack level */
 
+/* Intel MSRs. Some also available on other CPUs */
 #define MSR_TEST_CTRL				0x00000033
 #define MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT	29
 #define MSR_TEST_CTRL_SPLIT_LOCK_DETECT		BIT(MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT)
diff --git a/tools/arch/x86/include/asm/msr-index.h b/tools/arch/x86/include/asm/msr-index.h
index 1d111350197f..972d15404420 100644
--- a/tools/arch/x86/include/asm/msr-index.h
+++ b/tools/arch/x86/include/asm/msr-index.h
@@ -36,8 +36,19 @@
 #define EFER_FFXSR		(1<<_EFER_FFXSR)
 #define EFER_AUTOIBRS		(1<<_EFER_AUTOIBRS)
 
-/* Intel MSRs. Some also available on other CPUs */
+/* FRED MSRs */
+#define MSR_IA32_FRED_RSP0	0x1cc			/* Level 0 stack pointer */
+#define MSR_IA32_FRED_RSP1	0x1cd			/* Level 1 stack pointer */
+#define MSR_IA32_FRED_RSP2	0x1ce			/* Level 2 stack pointer */
+#define MSR_IA32_FRED_RSP3	0x1cf			/* Level 3 stack pointer */
+#define MSR_IA32_FRED_STKLVLS	0x1d0			/* Exception stack levels */
+#define MSR_IA32_FRED_SSP0	MSR_IA32_PL0_SSP	/* Level 0 shadow stack pointer */
+#define MSR_IA32_FRED_SSP1	0x1d1			/* Level 1 shadow stack pointer */
+#define MSR_IA32_FRED_SSP2	0x1d2			/* Level 2 shadow stack pointer */
+#define MSR_IA32_FRED_SSP3	0x1d3			/* Level 3 shadow stack pointer */
+#define MSR_IA32_FRED_CONFIG	0x1d4			/* Entrypoint and interrupt stack level */
 
+/* Intel MSRs. Some also available on other CPUs */
 #define MSR_TEST_CTRL				0x00000033
 #define MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT	29
 #define MSR_TEST_CTRL_SPLIT_LOCK_DETECT		BIT(MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT)
-- 
2.34.1