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arm64: phytium: Add CPU Implementer Phytium

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This patch adds 0x70 check for phytium implementer id in function
parse_cpu_details. Also adds that Phytium Soc is not vulnerable to variant 3/3a
This commit is contained in:
Zhiyuan Dai 2020-12-30 17:16:40 +08:00 committed by Stéphane Lesimple
parent 4ec3154be0
commit 6d35e780f4
1 changed files with 8 additions and 0 deletions
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spectre-meltdown-checker.sh
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@ -467,6 +467,10 @@ is_cpu_vulnerable()
variant3=immune variant3=immune
variant3a=immune variant3a=immune
variantl1tf=immune variantl1tf=immune
elif [ "$cpu_vendor" = PHYTIUM ]; then
variant3=immune
variant3a=immune
variantl1tf=immune
elif [ "$cpu_vendor" = ARM ]; then elif [ "$cpu_vendor" = ARM ]; then
# ARM # ARM
# reference: https://developer.arm.com/support/security-update # reference: https://developer.arm.com/support/security-update
@ -688,6 +692,8 @@ is_cpu_mds_free()
return 0 return 0
elif [ "$cpu_vendor" = CAVIUM ]; then elif [ "$cpu_vendor" = CAVIUM ]; then
return 0 return 0
elif [ "$cpu_vendor" = PHYTIUM ]; then
return 0
elif [ "$cpu_vendor" = ARM ]; then elif [ "$cpu_vendor" = ARM ]; then
return 0 return 0
fi fi
@ -1572,6 +1578,8 @@ parse_cpu_details()
elif grep -qi 'CPU implementer[[:space:]]*:[[:space:]]*0x43' "$procfs/cpuinfo"; then elif grep -qi 'CPU implementer[[:space:]]*:[[:space:]]*0x43' "$procfs/cpuinfo"; then
cpu_vendor='CAVIUM' cpu_vendor='CAVIUM'
elif grep -qi 'CPU implementer[[:space:]]*:[[:space:]]*0x70' "$procfs/cpuinfo"; then
cpu_vendor='PHYTIUM'
fi fi
cpu_family=$( grep '^cpu family' "$procfs/cpuinfo" | awk '{print $4}' | grep -E '^[0-9]+$' | head -1) cpu_family=$( grep '^cpu family' "$procfs/cpuinfo" | awk '{print $4}' | grep -E '^[0-9]+$' | head -1)