This patch adds support for getting the boot hart ID using new RISCV_EFI_BOOT_PROTOCOL in linux efi stub. While there is an existing solution of passing the boot hart ID through Device Tree, it doesn't work for ACPI. Hence an EFI protocol protocol is recommended which works for both DT and ACPI based platforms. The frozen spec of this new protocol is available at https://github.com/riscv-non-isa/riscv-uefi/releases/download/1.0-rc3/RISCV_UEFI_PROTOCOL-spec.pdf This is tested in qemu with both u-boot and edk2. Sunil V L (1): riscv/efi_stub: Add support for RISCV_EFI_BOOT_PROTOCOL drivers/firmware/efi/libstub/efistub.h | 7 ++++++ drivers/firmware/efi/libstub/riscv-stub.c | 29 +++++++++++++++++++---- include/linux/efi.h | 1 + 3 files changed, 32 insertions(+), 5 deletions(-) -- 2.25.1
