Commit f5579340 authored May 02, 2022 by Ard Biesheuvel

riscv: efi: enable generic EFI compressed boot



Wire up the generic EFI zboot support for RISC-V.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>

parent a0509109

arch/riscv/Makefile

+5 −1

Original line number	Diff line number	Diff line
		@@ -136,10 +136,14 @@ ifneq ($(CONFIG_XIP_KERNEL),y)
		ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_SOC_CANAAN),yy)
		KBUILD_IMAGE := $(boot)/loader.bin
		else
		ifeq ($(CONFIG_EFI_ZBOOT),)
		KBUILD_IMAGE := $(boot)/Image.gz
		else
		KBUILD_IMAGE := $(boot)/vmlinuz.efi
		endif
		endif
		endif
		BOOT_TARGETS := Image Image.gz loader loader.bin xipImage
		BOOT_TARGETS := Image Image.gz loader loader.bin xipImage vmlinuz.efi

		all: $(notdir $(KBUILD_IMAGE))

arch/riscv/boot/.gitignore

+1 −0

Original line number	Diff line number	Diff line
		@@ -4,4 +4,5 @@ Image.*
		loader
		loader.lds
		loader.bin
		vmlinuz*
		xipImage

arch/riscv/boot/Makefile

+6 −0

Original line number	Diff line number	Diff line
		@@ -58,3 +58,9 @@ $(obj)/Image.lzo: $(obj)/Image FORCE

		$(obj)/loader.bin: $(obj)/loader FORCE
		$(call if_changed,objcopy)

		EFI_ZBOOT_PAYLOAD := Image
		EFI_ZBOOT_BFD_TARGET := elf$(BITS)-littleriscv
		EFI_ZBOOT_MACH_TYPE := RISCV$(BITS)

		include $(srctree)/drivers/firmware/efi/libstub/Makefile.zboot