From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kweh, Hock Leong" Subject: [PATCH v6 0/2] Enable capsule loader interface for efi firmware updating Date: Fri, 2 Oct 2015 05:05:52 +0800 Message-ID: <1443733554-22743-1-git-send-email-hock.leong.kweh@intel.com> Cc: Ong Boon Leong , LKML , linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sam Protsenko , Peter Jones , Andy Lutomirski , Roy Franz , Borislav Petkov , James Bottomley , Linux FS Devel , "Kweh, Hock Leong" , Fleming Matt To: Matt Fleming , Greg Kroah-Hartman Return-path: Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-fsdevel.vger.kernel.org From: "Kweh, Hock Leong" 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 Write() function call. Tested the code with Intel Quark Galileo platform. Thanks. --- 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 | 246 +++++++++++++++++++++++++++++ 4 files changed, 258 insertions(+) create mode 100644 drivers/firmware/efi/efi-capsule-loader.c -- 1.7.9.5