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Update SRSO docs #317

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Sep 17, 2025
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Update SRSO docs #317

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3 changes: 2 additions & 1 deletion etc/default/grub.d/40_cpu_mitigations.cfg
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Expand Up @@ -167,7 +167,8 @@ GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX kvm.mitigate_smt_rsb=1"
## https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/srso.html
##
## The default kernel setting will be utilized until provided sufficient evidence to modify.
## Using "spec_rstack_overflow=ipbp" may provide stronger security at a greater performance impact.
## Using "spec_rstack_overflow=ibpb" may provide superior protection to the default software-based approach.
## The use of hardware barriers may be more effective while possibly incurring a greater performance loss.
##
#GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX spec_rstack_overflow=safe-ret"

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