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ibrs can't be enabled on no ibrs cpu (#195)

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* ibrs can't be enabled on no ibrs cpu

If the cpu is identified, and does not support SPEC_CTRL or IBRS, then ibrs can't be enabled, even if supported by the kernel.
Instead of reporting IBRS enabled and active UNKNOWN, report IBRS enabled and active NO.
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Rob Gill 2018-05-17 23:39:48 +10:00 committed by Stéphane Lesimple
parent 5cc77741af
commit 7e4899bcb8
1 changed files with 4 additions and 1 deletions
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spectre-meltdown-checker.sh
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@ -2137,7 +2137,10 @@ check_variant2_linux()
1) if [ "$ibrs_fw_enabled" = 1 ]; then pstatus green YES "for kernel space and firmware code"; else pstatus green YES "for kernel space"; fi;;
2) if [ "$ibrs_fw_enabled" = 1 ]; then pstatus green YES "for kernel, user space, and firmware code" ; else pstatus green YES "for both kernel and user space"; fi;;
3) if [ "$ibrs_fw_enabled" = 1 ]; then pstatus green YES "for kernel and firmware code"; else pstatus green YES; fi;;
*) pstatus yellow UNKNOWN;;
*) if [ ! "$cpuid_ibrs" = 'SPEC_CTRL' ] && [ ! "cpuid_ibrs" = 'IBRS_SUPPORT' ] && [ ! "cpuid_spec_ctrl" = -1 ];
then pstatus yellow NO; _debug "ibrs: known cpu not supporting SPEC-CTRL or IBRS";
else
pstatus yellow UNKNOWN; fi;;
esac
fi
else