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https://github.com/speed47/spectre-meltdown-checker
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update blacklisted ucode list from kernel source
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@ -649,7 +649,7 @@ is_ucode_blacklisted()
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cpu_stepping=$(grep '^stepping' /proc/cpuinfo | awk '{print $3}' | grep -E '^[0-9]+$' | head -1)
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cpu_ucode=$(grep '^microcode' /proc/cpuinfo | awk '{print $3}' | head -1)
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# now, check each known bad microcode
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# source: http://lkml.iu.edu/hypermail/linux/kernel/1801.2/06349.html
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# source: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/kernel/cpu/intel.c#n105
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INTEL_FAM6_KABYLAKE_DESKTOP=158
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INTEL_FAM6_KABYLAKE_MOBILE=142
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INTEL_FAM6_SKYLAKE_X=85
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@ -665,31 +665,34 @@ is_ucode_blacklisted()
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INTEL_FAM6_BROADWELL_XEON_D=86
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INTEL_FAM6_BROADWELL_GT3E=71
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INTEL_FAM6_BROADWELL_X=79
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INTEL_FAM6_ATOM_GEMINI_LAKE=122
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INTEL_FAM6_SANDYBRIDGE_X=45
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# model,stepping,microcode
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set -u
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for tuple in \
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$INTEL_FAM6_KABYLAKE_DESKTOP,0x0B,0x80 \
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$INTEL_FAM6_KABYLAKE_MOBILE,0x0A,0x80 \
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$INTEL_FAM6_KABYLAKE_MOBILE,0x09,0x80 \
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$INTEL_FAM6_KABYLAKE_DESKTOP,0x09,0x80 \
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$INTEL_FAM6_SKYLAKE_X,0x04,0x0200003C \
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$INTEL_FAM6_SKYLAKE_MOBILE,0x03,0x000000C2 \
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$INTEL_FAM6_SKYLAKE_DESKTOP,0x03,0x000000C2 \
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$INTEL_FAM6_BROADWELL_CORE,0x04,0x28 \
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$INTEL_FAM6_BROADWELL_GT3E,0x01,0x0000001B \
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$INTEL_FAM6_HASWELL_ULT,0x01,0x21 \
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$INTEL_FAM6_HASWELL_GT3E,0x01,0x18 \
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$INTEL_FAM6_HASWELL_CORE,0x03,0x23 \
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$INTEL_FAM6_IVYBRIDGE_X,0x04,0x42a \
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$INTEL_FAM6_HASWELL_X,0x02,0x3b \
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$INTEL_FAM6_HASWELL_X,0x04,0x10 \
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$INTEL_FAM6_HASWELL_CORE,0x03,0x23 \
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$INTEL_FAM6_BROADWELL_XEON_D,0x02,0x14 \
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$INTEL_FAM6_BROADWELL_XEON_D,0x03,0x7000011 \
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$INTEL_FAM6_BROADWELL_GT3E,0x01,0x0000001B \
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$INTEL_FAM6_BROADWELL_X,0x01,0x0b000025 \
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$INTEL_FAM6_KABYLAKE_DESKTOP,0x09,0x80 \
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$INTEL_FAM6_SKYLAKE_X,0x03,0x100013e \
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$INTEL_FAM6_SKYLAKE_X,0x04,0x200003c
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$INTEL_FAM6_KABYLAKE_DESKTOP,0x0B,0x84 \
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$INTEL_FAM6_KABYLAKE_DESKTOP,0x0A,0x84 \
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$INTEL_FAM6_KABYLAKE_DESKTOP,0x09,0x84 \
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$INTEL_FAM6_KABYLAKE_MOBILE,0x0A,0x84 \
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$INTEL_FAM6_KABYLAKE_MOBILE,0x09,0x84 \
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$INTEL_FAM6_SKYLAKE_X,0x03,0x0100013e \
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$INTEL_FAM6_SKYLAKE_X,0x04,0x0200003c \
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$INTEL_FAM6_SKYLAKE_MOBILE,0x03,0xc2 \
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$INTEL_FAM6_SKYLAKE_DESKTOP,0x03,0xc2 \
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$INTEL_FAM6_BROADWELL_CORE,0x04,0x28 \
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$INTEL_FAM6_BROADWELL_GT3E,0x01,0x1b \
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$INTEL_FAM6_BROADWELL_XEON_D,0x02,0x14 \
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$INTEL_FAM6_BROADWELL_XEON_D,0x03,0x07000011 \
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$INTEL_FAM6_BROADWELL_X,0x01,0x0b000025 \
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$INTEL_FAM6_HASWELL_ULT,0x01,0x21 \
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$INTEL_FAM6_HASWELL_GT3E,0x01,0x18 \
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$INTEL_FAM6_HASWELL_CORE,0x03,0x23 \
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$INTEL_FAM6_HASWELL_X,0x02,0x3b \
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$INTEL_FAM6_HASWELL_X,0x04,0x10 \
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$INTEL_FAM6_IVYBRIDGE_X,0x04,0x42a \
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$INTEL_FAM6_ATOM_GEMINI_LAKE,0x01,0x22 \
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$INTEL_FAM6_SANDYBRIDGE_X,0x06,0x61b \
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$INTEL_FAM6_SANDYBRIDGE_X,0x07,0x712
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do
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model=$(echo $tuple | cut -d, -f1)
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stepping=$(( $(echo $tuple | cut -d, -f2) ))
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@ -700,6 +703,7 @@ is_ucode_blacklisted()
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return 0
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fi
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done
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set +u
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_debug "is_ucode_blacklisted: no ($cpu_model/$cpu_stepping/$cpu_ucode)"
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return 1
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}
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