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[202211] Add support of secure warm-boot backport #2819

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merged 2 commits into from
May 10, 2023
Merged

[202211] Add support of secure warm-boot backport #2819

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9cdbbfc
[Secure Boot] Add support of secure warm-boot (#2532)
davidpil2002 Feb 14, 2023
4911de9
[Secure Boot] Fix non-zero status exit on non secure boot system (#2715)
kellyyeh Mar 7, 2023
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26 changes: 23 additions & 3 deletions scripts/fast-reboot
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Original file line number Diff line number Diff line change
Expand Up @@ -182,7 +182,7 @@ function request_pre_shutdown()
{
if [ -x ${DEVPATH}/${PLATFORM}/${PLATFORM_REBOOT_PRE_CHECK} ]; then
debug "Requesting platform reboot pre-check ..."
${DEVPATH}/${PLATFORM}/${PLATFORM_REBOOT_PRE_CHECK} ${REBOOT_TYPE}
${DEVPATH}/${PLATFORM}/${PLATFORM_REBOOT_PRE_CHECK} ${REBOOT_TYPE}
fi
debug "Requesting pre-shutdown ..."
STATE=$(timeout 5s docker exec syncd /usr/bin/syncd_request_shutdown --pre &> /dev/null; if [[ $? == 124 ]]; then echo "timed out"; fi)
Expand Down Expand Up @@ -447,9 +447,20 @@ function load_aboot_secureboot_kernel() {
swipath=$next_image kexec=true loadonly=true ENV_EXTRA_CMDLINE="$BOOT_OPTIONS" bash -
}

function invoke_kexec() {
/sbin/kexec -l "$KERNEL_IMAGE" --initrd="$INITRD" --append="$BOOT_OPTIONS" $@
}

function load_kernel() {
# Load kernel into the memory
/sbin/kexec -l "$KERNEL_IMAGE" --initrd="$INITRD" --append="$BOOT_OPTIONS"
invoke_kexec -a
}

function load_kernel_secure() {
# Load kernel into the memory secure
# -s flag is for enforcing the new load kernel(vmlinuz) to be signed and verify.
# not using -a flag, this flag can fallback to an old kexec load that do not support Secure Boot verification
invoke_kexec -s
}

function unload_kernel()
Expand Down Expand Up @@ -607,7 +618,16 @@ fi
if is_secureboot && grep -q aboot_machine= /host/machine.conf; then
load_aboot_secureboot_kernel
else
load_kernel
# check if secure boot is enable in UEFI
CHECK_SECURE_UPGRADE_ENABLED=0
SECURE_UPGRADE_ENABLED=$(bootctl status 2>/dev/null | grep -c "Secure Boot: enabled") || CHECK_SECURE_UPGRADE_ENABLED=$?
if [[ CHECK_SECURE_UPGRADE_ENABLED -ne 0 ]]; then
debug "Loading kernel without secure boot"
load_kernel
else
debug "Loading kernel with secure boot"
load_kernel_secure
fi
fi

init_warm_reboot_states
Expand Down