Re: [Buildroot] [PATCH v2 1/2] boot/grub2: add RISC-V 64bit EFI support

["Yann E. MORIN" <yann.morin.1998@free.fr>]

Julien, All,

On 2023-12-23 22:29 +0100, Julien Olivain spake thusly:
> Grub can be built as a RISC-V UEFI application since commit [1]. This
> commit was first included in grub version 2.04.
> 
> This commit enables this support.
> 
> [1] https://git.savannah.gnu.org/gitweb/?p=grub.git;a=commitdiff;h=f1957dc8a3347278a095bc8f44197662559a8ba3
> 
> Signed-off-by: Julien Olivain <ju.o@free.fr>

Applied to master, thanks.

Regards,
Yann E. MORIN.

> ---
>  boot/grub2/Config.in | 10 ++++++++++
>  boot/grub2/grub2.mk  |  9 +++++++++
>  2 files changed, 19 insertions(+)
> 
> diff --git a/boot/grub2/Config.in b/boot/grub2/Config.in
> index f05f33ccc7..7c235e96f7 100644
> --- a/boot/grub2/Config.in
> +++ b/boot/grub2/Config.in
> @@ -4,6 +4,7 @@ config BR2_TARGET_GRUB2_ARCH_SUPPORTS
>  	default y if BR2_x86_64
>  	default y if BR2_arm
>  	default y if BR2_aarch64
> +	default y if BR2_RISCV_64
>  	depends on BR2_USE_MMU
>  
>  config BR2_TARGET_GRUB2
> @@ -102,6 +103,15 @@ config BR2_TARGET_GRUB2_ARM64_EFI
>  	  Aarch64 platform and you want to boot Grub 2 as an EFI
>  	  application.
>  
> +config BR2_TARGET_GRUB2_RISCV64_EFI
> +	bool "riscv64-efi"
> +	depends on BR2_RISCV_64
> +	select BR2_TARGET_GRUB2_HAS_EFI_BOOT
> +	help
> +	  Select this option if the platform you're targetting is a
> +	  64bit RISC-V platform and you want to boot Grub 2 as an EFI
> +	  application.
> +
>  if BR2_TARGET_GRUB2_HAS_LEGACY_BOOT
>  
>  comment "Options for the x86 legacy BIOS or ARM U-Boot support"
> diff --git a/boot/grub2/grub2.mk b/boot/grub2/grub2.mk
> index b9be826885..679eac5f46 100644
> --- a/boot/grub2/grub2.mk
> +++ b/boot/grub2/grub2.mk
> @@ -93,6 +93,15 @@ GRUB2_BUILTIN_CONFIG_arm64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
>  GRUB2_BUILTIN_MODULES_arm64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
>  GRUB2_TUPLES-$(BR2_TARGET_GRUB2_ARM64_EFI) += arm64-efi
>  
> +GRUB2_IMAGE_riscv64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootriscv64.efi
> +GRUB2_CFG_riscv64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
> +GRUB2_PREFIX_riscv64-efi = /EFI/BOOT
> +GRUB2_TARGET_riscv64-efi = riscv64
> +GRUB2_PLATFORM_riscv64-efi = efi
> +GRUB2_BUILTIN_CONFIG_riscv64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
> +GRUB2_BUILTIN_MODULES_riscv64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
> +GRUB2_TUPLES-$(BR2_TARGET_GRUB2_RISCV64_EFI) += riscv64-efi
> +
>  # Grub2 is kind of special: it considers CC, LD and so on to be the
>  # tools to build the host programs and uses TARGET_CC, TARGET_CFLAGS,
>  # TARGET_CPPFLAGS, TARGET_LDFLAGS to build the bootloader itself.
> -- 
> 2.43.0
> 
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