linux-kernel - Re: [PATCH v5 7/8] riscv: efi: enable generic EFI compressed boot

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Date:   Fri, 16 Sep 2022 09:15:55 +0200
From:   Ard Biesheuvel <ardb@...nel.org>
To:     Conor.Dooley@...rochip.com
Cc:     linux-efi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        James.Bottomley@...senpartnership.com, mjg59@...f.ucam.org,
        pjones@...hat.com, ilias.apalodimas@...aro.org,
        heinrich.schuchardt@...onical.com, takahiro.akashi@...aro.org,
        palmer@...belt.com, atishp@...shpatra.org, arnd@...db.de,
        chenhuacai@...ngson.cn, xry111@...111.site, lennart@...ttering.net,
        jeremy.linton@....com, will@...nel.org, catalin.marinas@....com
Subject: Re: [PATCH v5 7/8] riscv: efi: enable generic EFI compressed boot

On Fri, 16 Sept 2022 at 09:09, <Conor.Dooley@...rochip.com> wrote:
>
> On 10/09/2022 09:11, Ard Biesheuvel wrote:
> >
> > Wire up the generic EFI zboot support for RISC-V.
> >
> > Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
>
> As promised:
> Tested-by: Conor Dooley <conor.dooley@...rochip.com>
>

Thanks a lot!

> > ---
> >   arch/riscv/Makefile        | 6 +++++-
> >   arch/riscv/boot/.gitignore | 1 +
> >   arch/riscv/boot/Makefile   | 6 ++++++
> >   3 files changed, 12 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
> > index 3fa8ef336822..d63295e21373 100644
> > --- a/arch/riscv/Makefile
> > +++ b/arch/riscv/Makefile
> > @@ -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))
> >
> > diff --git a/arch/riscv/boot/.gitignore b/arch/riscv/boot/.gitignore
> > index 0cea9f7fa9d5..e1bc507e8cb2 100644
> > --- a/arch/riscv/boot/.gitignore
> > +++ b/arch/riscv/boot/.gitignore
> > @@ -4,4 +4,5 @@ Image.*
> >   loader
> >   loader.lds
> >   loader.bin
> > +vmlinuz*
> >   xipImage
> > diff --git a/arch/riscv/boot/Makefile b/arch/riscv/boot/Makefile
> > index becd0621071c..d1a49adcb1d7 100644
> > --- a/arch/riscv/boot/Makefile
> > +++ b/arch/riscv/boot/Makefile
> > @@ -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
> > --
> > 2.35.1
> >
>