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-rw-r--r--pkg/cpuid/cpuid_x86.go7
1 files changed, 6 insertions, 1 deletions
diff --git a/pkg/cpuid/cpuid_x86.go b/pkg/cpuid/cpuid_x86.go
index a0bc55ea1..9abf6914d 100644
--- a/pkg/cpuid/cpuid_x86.go
+++ b/pkg/cpuid/cpuid_x86.go
@@ -235,7 +235,9 @@ const (
X86FeaturePERFCTR_TSC
X86FeaturePERFCTR_LLC
X86FeatureMWAITX
- // ECX[31:30] are reserved.
+ // TODO(b/152776797): Some CPUs set this but it is not documented anywhere.
+ X86FeatureBlock5Bit30
+ _ // ecx bit 31 is reserved.
)
// Block 6 constants are the extended feature bits in
@@ -438,6 +440,9 @@ var x86FeatureParseOnlyStrings = map[Feature]string{
// Block 3.
X86FeaturePREFETCHWT1: "prefetchwt1",
+
+ // Block 5.
+ X86FeatureBlock5Bit30: "block5_bit30",
}
// intelCacheDescriptors describe the caches and TLBs on the system. They are