On 07/10/15 20:13, Kweh, Hock Leong wrote:
From: "Kweh, Hock Leong" <hock.leong.kweh@xxxxxxxxx>
Dear maintainers & communities,
This patchset is created on top of Matt's patchset:
1.)https://lkml.org/lkml/2014/10/7/390
"[PATCH 1/2] efi: Move efi_status_to_err() to efi.h"
2.)https://lkml.org/lkml/2014/10/7/391
"[PATCH 2/2] efi: Capsule update support"
It expose a misc char interface for user to upload the capsule binary and
calling efi_capsule_update() API to pass the binary to EFI firmware.
The steps to update efi firmware are:
1.) cat firmware.cap > /dev/efi_capsule_loader
2.) reboot
Any failed upload error message will be returned while doing "cat" through
file operation write() function call.
Tested the code with Intel Quark Galileo GEN1 platform.
Thanks.
---
NOTE:
If Matt agrees with this design, [PATCH v7 1/1] will be squash into his
[PATCH 2/2]: https://lkml.org/lkml/2014/10/7/391 for submitting.
changelog v8:
* further clean up on kunmap() & efi_free_all_buff_pages()
* design enhanced to support 1st few writes are less than efi header size
* removed support to padding capsule and flag error once the upload size
bigger than header defined size
changelog v7:
* add successful message printed in dmesg
* shorten the code in efi_capsule_write() by splitting out
efi_capsule_setup_info() & efi_capsule_submit_update() functions
* design added capability to support multiple file open action
* re-write those comments by following standard format
* design added the "uncomplete" error return through flush() file operation
changelog v6:
* clean up on error handling for better code flow and review
* clean up on pr_err() for critical error only
* design taking care writing block that below PAGE_SIZE
* once error has occurred, design will return -EIO until file close
* document design expectations/scenarios in the code
* change the dynamic allocation cap_info struct to statically allocated
changelog v5:
* changed to new design without leveraging firmware_class API
* use misc_char device interface instead of sysfs
* error return through file Write() function call
Kweh, Hock Leong (2):
efi: export efi_capsule_supported() function symbol
efi: a misc char interface for user to update efi firmware
drivers/firmware/efi/Kconfig | 10
drivers/firmware/efi/Makefile | 1
drivers/firmware/efi/capsule.c | 1
drivers/firmware/efi/efi-capsule-loader.c | 356 +++++++++++++++++++++++++++++
4 files changed, 368 insertions(+)
create mode 100644 drivers/firmware/efi/efi-capsule-loader.c
Wilson.
Same question as at V7. If you aren't supporting the MFH on Galileo then
what capsule are you using with 0.75 BIOS ? From memory it won't work
without the MFH included ...
--
BOD
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