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fix(amd): AMD families 0x15-0x17 non-arch MSRs are a valid way to control SSB

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Stéphane Lesimple 2018-05-23 23:08:07 +02:00
parent 2cde6e4649
commit 39c778e3ac
1 changed files with 3 additions and 1 deletions
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spectre-meltdown-checker.sh
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@ -953,7 +953,7 @@ parse_cpu_details()
fi fi
echo "$cpu_ucode" | grep -q ^0x && cpu_ucode_decimal=$(( cpu_ucode )) echo "$cpu_ucode" | grep -q ^0x && cpu_ucode_decimal=$(( cpu_ucode ))
ucode_found="model $cpu_model stepping $cpu_stepping ucode $cpu_ucode cpuid "$(printf "0x%x" "$cpuid") ucode_found=$(printf "model 0x%x family 0x%x stepping 0x%x ucode 0x%x cpuid 0x%x" "$cpu_model" "$cpu_family" "$cpu_stepping" "$cpu_ucode" "$cpuid")
# also define those that we will need in other funcs # also define those that we will need in other funcs
# taken from ttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/include/asm/intel-family.h # taken from ttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/include/asm/intel-family.h
@ -1690,6 +1690,8 @@ check_cpu()
elif [ $ret25 -eq 0 ]; then elif [ $ret25 -eq 0 ]; then
cpuid_ssbd='AMD SSBD in VIRT_SPEC_CTRL' cpuid_ssbd='AMD SSBD in VIRT_SPEC_CTRL'
#cpuid_ssbd_virt_spec_ctrl=1 #cpuid_ssbd_virt_spec_ctrl=1
elif [ "$cpu_family" -ge 21 ] && [ "$cpu_family" -le 23 ]; then
cpuid_ssbd='AMD non-architectural MSR'
fi fi
fi fi