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u-boot-qcom: enable EFI runtime variable store for efivar #2513

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u-boot-qcom: enable EFI runtime variable store for efivar #2513

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10 changes: 10 additions & 0 deletions recipes-bsp/u-boot/files/efi-rt-volatile-store.cfg
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
# Allow SetVariable at runtime on U-Boot's in-RAM EFI variable store so the
# OS can write EFI variables via efivarfs. With this enabled U-Boot also
# advertises EFI_RT_SUPPORTED_SET_VARIABLE and exposes the RTStorageVolatile
# and VarToFile variables, which userspace tools such as efivar use to persist
# runtime changes back to the ubootefi.var store on the ESP across reboots.
#
# EFI_RT_VOLATILE_STORE depends on EFI_VARIABLE_FILE_STORE; select it
# explicitly so the option is not silently dropped if that default changes.
CONFIG_EFI_VARIABLE_FILE_STORE=y
CONFIG_EFI_RT_VOLATILE_STORE=y
1 change: 1 addition & 0 deletions recipes-bsp/u-boot/u-boot-qcom_git.bb
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Expand Up @@ -13,6 +13,7 @@ SRCBRANCH = "nobranch=1"
SRC_URI = "git://github.com/qualcomm-linux/u-boot.git;${SRCBRANCH};protocol=https;name=uboot"
SRC_URI += " \
file://disable-eficapsule-tool.cfg \
file://efi-rt-volatile-store.cfg \
${@bb.utils.contains('MACHINE_FEATURES', 'optee', 'file://tfa-optee.cfg', '', d)} \
${@bb.utils.contains('MACHINE_FEATURES', 'kvm', 'file://gunyah-exit.cfg', '', d)} \
"
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