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arm64: cavium: Add CPU Implementer Cavium (#216)

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This patch adds 0x43 check for cavium implementor id in function
parse_cpu_details. Also adds that Cavium Soc is not vulnerable to variant 3/3a

Signed-off-by: Manish Jaggi <manish.jagg@cavium.com>
This commit is contained in:
manish jaggi 2018-07-22 22:36:19 +05:30 committed by Stéphane Lesimple
parent cf06636a3f
commit 30c4a1f6d2
1 changed files with 6 additions and 0 deletions
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6
spectre-meltdown-checker.sh
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@ -323,6 +323,9 @@ is_cpu_vulnerable()
[ -z "$variant4" ] && variant4=immune
_debug "is_cpu_vulnerable: cpu not affected by speculative store bypass so not vuln to variant4"
fi
elif [ "$cpu_vendor" = CAVIUM ]; then
variant3=immune
variant3a=immune
elif [ "$cpu_vendor" = ARM ]; then
# ARM
# reference: https://developer.arm.com/support/security-update
@ -989,6 +992,9 @@ parse_cpu_details()
cpu_friendly_name="ARM"
[ -n "$cpu_arch" ] && cpu_friendly_name="$cpu_friendly_name v$cpu_arch"
[ -n "$cpu_part" ] && cpu_friendly_name="$cpu_friendly_name model $cpu_part"
elif grep -qi 'CPU implementer[[:space:]]*:[[:space:]]*0x43' "$procfs/cpuinfo"; then
cpu_vendor='CAVIUM'
fi
cpu_family=$( grep '^cpu family' "$procfs/cpuinfo" | awk '{print $4}' | grep -E '^[0-9]+$' | head -1)