On Wed, 22 Apr 2020 10:24:07 PDT (-0700), ardb@xxxxxxxxxx wrote:
This is a rework of Atish's series [0] to add EFI stub loader support
to the RISC-V port. The purpose is to split the code in a way that makes
it amenable to being merged via different trees during the same cycle.
While at it, I added a patch to disable initrd= loading for new ports,
given that it is deprecated and replaced with a method based on a
special UEFI device path.
My changes are logged in the individual patches.
I propose to take the first four patches via the EFI tree, and expose
them via a stable tag so that the RISC-V maintainers can merge it before
applying the remaining patches. That will ensure that both trees remain
in a buildable state, with working EFI stub support on the riscv branch.
Works for me. Thanks!
Cc: Atish Patra <atish.patra@xxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx>
Cc: linux-riscv@xxxxxxxxxxxxxxxxxxx
Ard Biesheuvel (1):
efi/libstub: Make initrd file loader configurable
Atish Patra (6):
efi/libstub: Move arm-stub to a common file
efi/libstub/riscv: add arch specific efi.h header file
include: pe.h: Add RISC-V related PE definition
RISC-V: Define fixmap bindings for generic early ioremap support
RISC-V: Add PE/COFF header for EFI stub
RISC-V: Add EFI stub support.
arch/arm/Kconfig | 2 +-
arch/arm64/Kconfig | 2 +-
arch/riscv/Kconfig | 21 ++++
arch/riscv/Makefile | 1 +
arch/riscv/configs/defconfig | 1 +
arch/riscv/include/asm/Kbuild | 1 +
arch/riscv/include/asm/efi.h | 41 +++++++
arch/riscv/include/asm/fixmap.h | 18 +++
arch/riscv/include/asm/io.h | 1 +
arch/riscv/include/asm/sections.h | 13 +++
arch/riscv/kernel/Makefile | 4 +
arch/riscv/kernel/efi-header.S | 100 ++++++++++++++++
arch/riscv/kernel/head.S | 16 +++
arch/riscv/kernel/image-vars.h | 53 +++++++++
arch/riscv/kernel/vmlinux.lds.S | 22 +++-
drivers/firmware/efi/Kconfig | 15 ++-
drivers/firmware/efi/libstub/Makefile | 22 +++-
.../efi/libstub/{arm-stub.c => efi-stub.c} | 0
drivers/firmware/efi/libstub/file.c | 3 +
drivers/firmware/efi/libstub/riscv-stub.c | 109 ++++++++++++++++++
include/linux/pe.h | 3 +
21 files changed, 436 insertions(+), 12 deletions(-)
create mode 100644 arch/riscv/include/asm/efi.h
create mode 100644 arch/riscv/include/asm/sections.h
create mode 100644 arch/riscv/kernel/efi-header.S
create mode 100644 arch/riscv/kernel/image-vars.h
rename drivers/firmware/efi/libstub/{arm-stub.c => efi-stub.c} (100%)
create mode 100644 drivers/firmware/efi/libstub/riscv-stub.c
