good question, I started poking around about this. I know I read that AMD may
not have been affected as much (or at all). Have you tried applying the OS
patches & checking? I haven't spent a lot of time at this save one quick
benchmark, but I did toss together quickly this bash tool to report "protected
or not", and used RHEL 7.4.
#!/bin/bash
if [ $# -lt 1 ] ; then
printf "\n"
printf "Spectre/Meltdown enable/disable tool\n"
printf "\n"
printf "usage:\n"
printf "\n"
printf " spectre_meltdown protect|unprotect|status\n"
printf "\n"
printf "\n"
printf "\n"
printf "\n"
exit 1
fi
ARG=$1
if [ $ARG == "protect" ] ; then
echo Protecting...
echo 1 > /sys/kernel/debug/x86/pti_enabled
echo 1 > /sys/kernel/debug/x86/ibpb_enabled
echo 1 > /sys/kernel/debug/x86/ibrs_enabled
exit 0
fi
if [ $ARG == "unprotect" ] ; then
echo Unprotecting...
echo 0 > /sys/kernel/debug/x86/pti_enabled
echo 0 > /sys/kernel/debug/x86/ibpb_enabled
echo 0 > /sys/kernel/debug/x86/ibrs_enabled
exit 0
fi
if [ $ARG == "status" ] ; then
PTI=`cat /sys/kernel/debug/x86/pti_enabled 2>/dev/null`
IBPB=`cat /sys/kernel/debug/x86/ibpb_enabled 2>/dev/null`
IBRS=`cat /sys/kernel/debug/x86/ibrs_enabled 2>/dev/null`
STATUS="unprotected"
if [[ ( "$PTI" == "1" ) && ( "$IBPB" == "1" ) && ( "$IBRS" == "1" ) ]]
; then
STATUS="protected"
fi
printf "%s\n" "$STATUS"
exit 0
fi
echo Invalid argument.
exit 1
Michael Stumpf
Storage, Embedded Management
Dell EMC | PowerEdge Portfolio Sys Engr
From: poweredgec-tools-bounces On Behalf Of Nigel Williams
Sent: Sunday, April 08, 2018 10:27 PM
To: poweredgec-tools <[email protected]>
Subject: [Poweredgec-tools] any further BIOS updates for C6145?
Since the question came up on an internal chat (about updates for
Spectre/Meltdown/etc) will the C6145 see any more firmware updates?
thanks.
University of Tasmania Electronic Communications Policy (December, 2014).
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University of Tasmania, unless clearly intended otherwise.
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