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- Log ----------------------------------------------------------------- commit 0e457b13eaf61b2830919e3745df3956e2042640 Author: Michael Tremer michael.tremer@ipfire.org Date: Fri Aug 21 11:51:10 2020 +0200
smt: Fix check to detect if a system is running virtually
/sys/hypervisor exists when a host has loaded the kvm modules.
Fixes: #12472 Signed-off-by: Michael Tremer michael.tremer@ipfire.org
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Summary of changes: src/initscripts/system/functions | 5 +++++ src/initscripts/system/smt | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-)
Difference in files: diff --git a/src/initscripts/system/functions b/src/initscripts/system/functions index 30119918c..234b798cf 100644 --- a/src/initscripts/system/functions +++ b/src/initscripts/system/functions @@ -784,6 +784,11 @@ umount_ramdisk() { rm -rf "${path_tmpfs}" }
+# Returns true when this system running in a virtual environment +running_on_hypervisor() { + grep -qE "^flags\s+:.*hypervisor" /proc/cpuinfo +} + # https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/identify_ec2_instances.h... running_on_ec2() { local uuid diff --git a/src/initscripts/system/smt b/src/initscripts/system/smt index bfa7d57b3..274ec4bba 100644 --- a/src/initscripts/system/smt +++ b/src/initscripts/system/smt @@ -21,7 +21,7 @@ case "${1}" in fi 2>/dev/null
# Do not disable SMT inside virtual machines - if [ -d "/sys/hypervisor" ]; then + if running_on_hypervisor; then exit 0 fi
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