On 02/19/15 at 09:54am, Peter Jones wrote: > Add sysfs files for the EFI System Resource Table (ESRT) under > /sys/firmware/efi/esrt and for each EFI System Resource Entry under > entries/ as a subdir. > > The EFI System Resource Table (ESRT) provides a read-only catalog of > system components for which the system accepts firmware upgrades via > UEFI's "Capsule Update" feature. This module allows userland utilities > to evaluate what firmware updates can be applied to this system, and > potentially arrange for those updates to occur. > > The ESRT is described as part of the UEFI specification, in version 2.5 > which should be available from http://uefi.org/specifications in early > 2015. If you're a member of the UEFI Forum, information about its > addition to the standard is available as UEFI Mantis 1090. > > For some hardware platforms, additional restrictions may be found at > http://msdn.microsoft.com/en-us/library/windows/hardware/jj128256.aspx , > and additional documentation may be found at > http://download.microsoft.com/download/5/F/5/5F5D16CD-2530-4289-8019-94C6A20BED3C/windows-uefi-firmware-update-platform.docx > . > > Signed-off-by: Peter Jones <pjones@xxxxxxxxxx> > --- > arch/x86/platform/efi/efi.c | 2 + > drivers/firmware/efi/Makefile | 2 +- > drivers/firmware/efi/efi.c | 68 ++++++- > drivers/firmware/efi/esrt.c | 441 ++++++++++++++++++++++++++++++++++++++++++ > include/linux/efi.h | 8 + > 5 files changed, 519 insertions(+), 2 deletions(-) > create mode 100644 drivers/firmware/efi/esrt.c Update documentation under Documentation/ABI/testing/? [snip] > /* > @@ -95,6 +96,8 @@ static ssize_t systab_show(struct kobject *kobj, > str += sprintf(str, "BOOTINFO=0x%lx\n", efi.boot_info); > if (efi.uga != EFI_INVALID_TABLE_ADDR) > str += sprintf(str, "UGA=0x%lx\n", efi.uga); > + if (efi.esrt != EFI_INVALID_TABLE_ADDR) > + str += sprintf(str, "ESRT=0x%lx\n", efi.esrt); > > return str - buf; > } Add more output in /sys/firmware/efi/systab is wrong, one table address should have one file under /sys/firmware/efi/, we have created the systab in the wrong way but we should not continue to add things.. Thanks Dave -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
