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https://github.com/speed47/spectre-meltdown-checker.git
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also check for spec_ctrl flag in cpuinfo
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parent
a422b53d7c
commit
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@ -142,6 +142,11 @@ _verbose()
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_echo 2 "$@"
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}
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_verbose_nol()
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{
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_echo_nol 2 "$@"
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}
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_debug()
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{
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_echo 3 "\033[34m(debug) $@\033[0m"
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@ -664,7 +669,8 @@ check_variant2()
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sys_interface_available=1
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else
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_info "* Mitigation 1"
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_info_nol "* Hardware (CPU microcode) support for mitigation [SPEC_CTRL MSR]: "
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_info "* Hardware (CPU microcode) support for mitigation"
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_info_nol "* The SPEC_CTRL MSR is available: "
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if [ ! -e /dev/cpu/0/msr ]; then
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# try to load the module ourselves (and remember it so we can rmmod it afterwards)
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modprobe msr 2>/dev/null && insmod_msr=1
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@ -691,7 +697,7 @@ check_variant2()
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fi
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# CPUID test
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_info_nol "* Hardware (CPU microcode) support for mitigation [CPUID bit]: "
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_info_nol "* The SPEC_CTRL CPUID feature bit is set: "
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if [ ! -e /dev/cpu/0/cpuid ]; then
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# try to load the module ourselves (and remember it so we can rmmod it afterwards)
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modprobe cpuid 2>/dev/null && insmod_cpuid=1
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@ -720,12 +726,14 @@ check_variant2()
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fi
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# hardware support according to kernel
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_info_nol "* Hardware (CPU microcode) support for mitigation [cpuinfo flag]: "
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if [ "$opt_verbose" -ge 2 ]; then
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_verbose_nol "* The kernel has set the spec_ctrl flag in cpuinfo: "
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if grep -qw spec_ctrl /proc/cpuinfo; then
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pstatus green YES
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else
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pstatus red NO
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fi
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fi
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_info_nol "* Kernel support for IBRS: "
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if [ "$opt_live" = 1 ]; then
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