This implements generic EFI core kernel code to seed the kernel entropy pool from a Linux specific UEFI configuration table containing a random seed supplied by the firmware. (#1) In addition, it wires it up for ARM and arm64, by invoking the EFI_RNG_PROTOCOL UEFI protocol from the stub, and populating such a UEFI config table using its output. Changes since v1: - Add a patch to actually build random.c for the ARM version of the stub, so that the functionality that patch #3 adds is available on ARM as well as arm64 - Handle the kexec case, by updating the seed in the configuration table on reboot. How to wire this up for x86 is left as an exercise for the Intel developer. Ard Biesheuvel (3): efi: add support for seeding the RNG from a UEFI config table efi/libstub: add random.c to ARM build efi/arm*: libstub: invoke EFI_RNG_PROTOCOL to seed the UEFI RNG table drivers/firmware/efi/efi.c | 67 ++++++++++++++++++++ drivers/firmware/efi/libstub/Makefile | 4 +- drivers/firmware/efi/libstub/arm-stub.c | 2 + drivers/firmware/efi/libstub/efi-stub-helper.c | 9 --- drivers/firmware/efi/libstub/efistub.h | 11 ++++ drivers/firmware/efi/libstub/random.c | 48 ++++++++++++++ include/linux/efi.h | 9 +++ 7 files changed, 139 insertions(+), 11 deletions(-) -- 2.7.4 -- 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
