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| author | Sean Christopherson <seanjc@google.com> | 2024-06-05 16:19:10 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-08-22 11:25:47 -0700 |
| commit | beb2e446046f8dd96bbeed3267b5f26bf1926ef9 (patch) | |
| tree | 16ab03d0367d84d568556172d31cc1ae3f3a53ba /arch/x86/include | |
| parent | e7e80b66fb242a63cdfc3d3534cff62a5e293185 (diff) | |
| download | lwn-beb2e446046f8dd96bbeed3267b5f26bf1926ef9.tar.gz lwn-beb2e446046f8dd96bbeed3267b5f26bf1926ef9.zip | |
x86/cpu: KVM: Move macro to encode PAT value to common header
Move pat/memtype.c's PAT() macro to msr-index.h as PAT_VALUE(), and use it
in KVM to define the default (Power-On / RESET) PAT value instead of open
coding an inscrutable magic number.
No functional change intended.
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240605231918.2915961-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/msr-index.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index bb43a07616e6..f6eb3460e169 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -377,6 +377,12 @@ #define MSR_IA32_CR_PAT 0x00000277 +#define PAT_VALUE(p0, p1, p2, p3, p4, p5, p6, p7) \ + ((X86_MEMTYPE_ ## p0) | (X86_MEMTYPE_ ## p1 << 8) | \ + (X86_MEMTYPE_ ## p2 << 16) | (X86_MEMTYPE_ ## p3 << 24) | \ + (X86_MEMTYPE_ ## p4 << 32) | (X86_MEMTYPE_ ## p5 << 40) | \ + (X86_MEMTYPE_ ## p6 << 48) | (X86_MEMTYPE_ ## p7 << 56)) + #define MSR_IA32_DEBUGCTLMSR 0x000001d9 #define MSR_IA32_LASTBRANCHFROMIP 0x000001db #define MSR_IA32_LASTBRANCHTOIP 0x000001dc |