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Subject[PATCH v8 05/15] x86/msr-index: Define MSR_IA32_CORE_CAPABILITY and split lock detection bit
Date
A new MSR_IA32_CORE_CAPABILITY (0xcf) is defined. Each bit in the MSR
enumerates a model specific feature. Currently bit 5 enumerates split
lock detection. When bit 5 is 1, split lock detection is supported.
When the bit is 0, split lock detection is not supported.

Please check the latest Intel 64 and IA-32 Architectures Software
Developer's Manual for more detailed information on the MSR and the
split lock detection bit.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
---
arch/x86/include/asm/msr-index.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index ca5bc0eacb95..f65ef6f783d2 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -59,6 +59,9 @@
#define MSR_PLATFORM_INFO_CPUID_FAULT_BIT 31
#define MSR_PLATFORM_INFO_CPUID_FAULT BIT_ULL(MSR_PLATFORM_INFO_CPUID_FAULT_BIT)

+#define MSR_IA32_CORE_CAPABILITY 0x000000cf
+#define CORE_CAP_SPLIT_LOCK_DETECT BIT(5) /* Detect split lock */
+
#define MSR_PKG_CST_CONFIG_CONTROL 0x000000e2
#define NHM_C3_AUTO_DEMOTE (1UL << 25)
#define NHM_C1_AUTO_DEMOTE (1UL << 26)
--
2.19.1
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