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https://github.com/speed47/spectre-meltdown-checker
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cleanup: shellcheck pass
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@ -240,7 +240,7 @@ is_cpu_vulnerable()
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for cpupart in $cpu_part_list
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do
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i=$(( i + 1 ))
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cpuarch=$(echo "$cpuarch_list" | awk '{ print $'$i' }')
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cpuarch=$(echo "$cpu_arch_list" | awk '{ print $'$i' }')
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_debug "checking cpu$i: <$cpupart> <$cpuarch>"
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# some kernels report AArch64 instead of 8
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[ "$cpuarch" = "AArch64" ] && cpuarch=8
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@ -658,7 +658,7 @@ read_cpuid()
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dd if=/dev/cpu/0/cpuid bs=16 skip="$_leaf" iflag=skip_bytes count=1 >/dev/null 2>/dev/null
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_debug "cpuid: reading leaf$_leaf of cpuid on cpu0, ret=$?"
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_debug "cpuid: leaf$_leaf eax-ebx-ecx-edx: $( dd if=/dev/cpu/0/cpuid bs=16 skip="$_leaf" iflag=skip_bytes count=1 2>/dev/null | od -x -A n)"
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_debug "cpuid: leaf$_leaf edx higher byte is: $(dd if=/dev/cpu/0/cpuid bs=16 skip="$_leaf" iflag=skip_bytes count=1 2>/dev/null | dd bs=1 skip=$_bytenum count=1 2>/dev/null | od -x -A n)"
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_debug "cpuid: leaf$_leaf edx higher byte is: $(dd if=/dev/cpu/0/cpuid bs=16 skip="$_leaf" iflag=skip_bytes count=1 2>/dev/null | dd bs=1 skip="$_bytenum" count=1 2>/dev/null | od -x -A n)"
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fi
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# getting proper byte of edx on leaf$_leaf of cpuinfo in decimal
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_reg_byte=$(dd if=/dev/cpu/0/cpuid bs=16 skip="$_leaf" iflag=skip_bytes count=1 2>/dev/null | dd bs=1 skip="$_bytenum" count=1 2>/dev/null | od -t u1 -A n | awk '{print $1}')
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@ -720,6 +720,8 @@ parse_cpu_details()
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# also define those that we will need in other funcs
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# taken from ttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/include/asm/intel-family.h
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# shellcheck disable=SC2034
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{
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INTEL_FAM6_CORE_YONAH=$(( 0x0E ))
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INTEL_FAM6_CORE2_MEROM=$(( 0x0F ))
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@ -777,6 +779,7 @@ parse_cpu_details()
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INTEL_FAM6_XEON_PHI_KNL=$(( 0x57 ))
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INTEL_FAM6_XEON_PHI_KNM=$(( 0x85 ))
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}
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}
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is_ucode_blacklisted()
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