On 3/23/20 8:11 AM, Sughosh Ganu wrote: > This series is based on the capsule update rfc series sent by Takahiro > Akashi[1]. > > These routines have been tested on the qemu arm64 platform for > updating the u-boot firmware through the capsule-on-disk functionality > of the uefi spec. A sub-command has been added under the 'efidebug > capsule' category of commands for initiating the firmware update. > > The capsule file is placed on the efi system partition(esp), under the > EFI/UpdateCapsule directory. The BootNext and BootXXXX variables are > set accordingly by using the 'efidebug boot add' command. > > The capsule update can then be initiated by the following command > 'efidebug capsule disk-update'.
Thanks you for your work on capsule updates. I am missing here an overview description of the system setup. I saw a filename bl33.bin. So assume I that you want to use ATF? In how far is ATF needed for testing the capsule update? Please, mention the use of semihosting in the overview. Best regards Heinrich > > The feature can be enabled through the following config options > CONFIG_EFI_CAPSULE_UPDATE=y > CONFIG_EFI_CAPSULE_ON_DISK=y > CONFIG_EFI_CAPSULE_UPDATE_FIRMWARE=y > CONFIG_EFI_FIRMWARE_MANAGEMENT_PROTOCOL=y > CONFIG_CMD_EFIDEBUG=y > > The GenerateCapsule.py script in edk2 has been used to generate the > capsule file. > > Todo > * Capsule authentication support. > * Implement firmware version support. > * Invoke capsule update functionality during platform boot. This might > be taken up by Takahiro. > > [1] - https://lists.denx.de/pipermail/u-boot/2020-March/403038.html > > Sughosh Ganu (4): > efidebug: capsule: Add a command to update capsule on disk > semihosting: Change semihosting file operation functions into global > symbols > semihosting: Add support for writing to a file > qemu: arm64: Add support for efi firmware management protocol routines > > arch/arm/lib/semihosting.c | 48 ++++++- > board/emulation/qemu-arm/Kconfig | 12 ++ > board/emulation/qemu-arm/Makefile | 1 + > board/emulation/qemu-arm/qemu_efi_fmp.c | 173 ++++++++++++++++++++++++ > cmd/efidebug.c | 14 ++ > include/semihosting.h | 14 ++ > 6 files changed, 257 insertions(+), 5 deletions(-) > create mode 100644 board/emulation/qemu-arm/qemu_efi_fmp.c > create mode 100644 include/semihosting.h >
