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efi_loader: Force a single FMP instance per hardware store 

Chapter 23 of the EFI spec (rev 2.9) says:
"A specific updatable hardware firmware store must be represented by
exactly one FMP instance".
This is not the case for us, since both of our FMP protocols can be
installed at the same time because they are controlled by a single
'dfu_alt_info' env variable.
So make the config options depend on each other and allow the user to
install one of them at any given time.  If we fix the meta-data provided
by the 'dfu_alt_info' in the future,  to hint about the capsule type
(fit or raw) we can revise this and enable both FMPs to be installed, as
long as they target different firmware hardware stores

Note that we are not using a Kconfig 'choice' on purpose, since we
want to allow both of those to be installed and tested in sandbox

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Ilias Apalodimas 2021-06-22 17:38:52 +03:00 committed by Heinrich Schuchardt
parent 3ef772230d
commit b891ff18f8
2 changed files with 22 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
configs/xilinx_zynqmp_virt_defconfig
View File

@ -187,5 +187,4 @@ CONFIG_OF_LIBFDT_OVERLAY=y
CONFIG_EFI_SET_TIME=y
CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
CONFIG_EFI_CAPSULE_ON_DISK=y
CONFIG_EFI_CAPSULE_FIRMWARE_FIT=y
CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y

45
lib/efi_loader/Kconfig
View File

@ -161,6 +161,28 @@ config EFI_CAPSULE_FIRMWARE_MANAGEMENT
Select this option if you want to enable capsule-based
firmware update using Firmware Management Protocol.
config EFI_CAPSULE_FIRMWARE_FIT
bool "FMP driver for FIT images"
depends on FIT
depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
select UPDATE_FIT
select DFU
select EFI_CAPSULE_FIRMWARE
help
Select this option if you want to enable firmware management protocol
driver for FIT image
config EFI_CAPSULE_FIRMWARE_RAW
bool "FMP driver for raw images"
depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
depends on SANDBOX || (!SANDBOX && !EFI_CAPSULE_FIRMWARE_FIT)
select DFU_WRITE_ALT
select DFU
select EFI_CAPSULE_FIRMWARE
help
Select this option if you want to enable firmware management protocol
driver for raw image
config EFI_CAPSULE_AUTHENTICATE
bool "Update Capsule authentication"
depends on EFI_CAPSULE_FIRMWARE
@ -181,29 +203,6 @@ config EFI_CAPSULE_AUTHENTICATE
Select this option if you want to enable capsule
authentication
config EFI_CAPSULE_FIRMWARE_FIT
bool "FMP driver for FIT image"
depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
depends on FIT
select UPDATE_FIT
select DFU
select EFI_CAPSULE_FIRMWARE
default n
help
Select this option if you want to enable firmware management protocol
driver for FIT image
config EFI_CAPSULE_FIRMWARE_RAW
bool "FMP driver for raw image"
depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
select DFU
select DFU_WRITE_ALT
select EFI_CAPSULE_FIRMWARE
default n
help
Select this option if you want to enable firmware management protocol
driver for raw image
config EFI_DEVICE_PATH_TO_TEXT
bool "Device path to text protocol"
default y