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-rw-r--r--src/include/cpu/x86/mtrr.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h
index 164d79af2a..f9aadc58a5 100644
--- a/src/include/cpu/x86/mtrr.h
+++ b/src/include/cpu/x86/mtrr.h
@@ -21,6 +21,8 @@
#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
+#define MTRRphysMaskValid (1 << 11)
+
#define NUM_FIXED_RANGES 88
#define MTRRfix64K_00000_MSR 0x250
#define MTRRfix16K_80000_MSR 0x258