The capsule update code uses the dfu_alt_info variable for the actual
update of the firmware component. The dfu_alt_info variable gives
information needed to perform the update, like the device on which the
update is to be made, the partition, type of partition etc. Since the
dfu_alt_info is a environmental variable, it can be modified from the
u-boot command line. An incorrect update of the variable will result
in the update being done incorrectly.
Prevent this scenario by forcing an update of the dfu_alt_info
variable from the information obtained through the board file when
UEFI capsule update functionality is enabled.
Signed-off-by: Sughosh Ganu <sughosh.g...@linaro.org>
---
Changes since V2: New Patch
lib/efi_loader/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index e5e35fe51f..09fb8cbe75 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -174,6 +174,7 @@ config EFI_CAPSULE_FIRMWARE_FIT
depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
select UPDATE_FIT
select DFU
+ select SET_DFU_ALT_INFO
select EFI_CAPSULE_FIRMWARE
help
Select this option if you want to enable firmware management protocol
@@ -185,6 +186,7 @@ config EFI_CAPSULE_FIRMWARE_RAW
depends on SANDBOX || (!SANDBOX && !EFI_CAPSULE_FIRMWARE_FIT)
select DFU_WRITE_ALT
select DFU
+ select SET_DFU_ALT_INFO
select EFI_CAPSULE_FIRMWARE
help
Select this option if you want to enable firmware management protocol
--
2.25.1
