peter/spectre-meltdown-checker
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spectre-meltdown-checker
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fix issue with empty result

This commit is contained in:
Hans-Joachim Kliemeck 2018-12-16 21:00:44 +01:00
parent 486bab7a1e
commit 8b01194630
1 changed files with 4 additions and 4 deletions
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8
spectre-meltdown-checker.sh
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@ -3891,13 +3891,13 @@ check_CVE_2018_3646_linux()
l1d_xen_hypervisor=$(xl dmesg | grep 'Xen settings:' | grep 'L1D_FLUSH' | head -1)
l1d_xen_pv_domU=$(xl dmesg | grep 'PV L1TF shadowing:' | grep 'DomU enabled' | head -1)
if [ -z "$l1d_xen_hardware" ] && [ -z "$l1d_xen_hypervisor" ] && [ -z "$l1d_xen_pv_domU" ]; then
if [ -n "$l1d_xen_hardware" ] && [ -n "$l1d_xen_hypervisor" ] && [ -n "$l1d_xen_pv_domU" ]; then
l1d_mode=5
pstatus green YES "for XEN guests"
elif [ -z "$l1d_xen_hardware" ] && [ -z "$l1d_xen_hypervisor" ]; then
elif [ -n "$l1d_xen_hardware" ] && [ -n "$l1d_xen_hypervisor" ]; then
l1d_mode=4
pstatus yellow YES "for XEN guests (HVM only)"
elif [ -z "$l1d_xen_pv_domU" ]; then
elif [ -n "$l1d_xen_pv_domU" ]; then
l1d_mode=3
pstatus yellow YES "for XEN guests (PV only)"
else
@ -3920,7 +3920,7 @@ check_CVE_2018_3646_linux()
_info_nol " * Hardware-backed L1D flush supported: "
if [ "$opt_live" = 1 ]; then
if grep -qw flush_l1d "$procfs/cpuinfo" || [ -z "$l1d_xen_hardware" ]; then
if grep -qw flush_l1d "$procfs/cpuinfo" || [ -n "$l1d_xen_hardware" ]; then
pstatus green YES "performance impact of the mitigation will be greatly reduced"
else
pstatus blue NO "flush will be done in software, this is slower"