[PATCH] RISC-V: Build flat and compressed kernel images

Bin Meng bmeng.cn at gmail.com
Tue Nov 20 21:06:18 PST 2018


On Mon, Nov 12, 2018 at 1:55 PM Anup Patel <anup at brainfault.org> wrote:
>
> This patch extends Linux RISC-V build system to build and install:
> Image - Flat uncompressed kernel image
> Image.gz - Flat and GZip compressed kernel image
>
> Quiet a few bootloaders (such as Uboot, UEFI, etc) are capable of

nits: U-Boot

> booting flat and compressed kernel images. In case of Uboot, booting

nits: U-Boot

> Image or Image.gz is achieved using bootm command.
>
> The flat and uncompressed kernel image (i.e. Image) is very useful
> in pre-silicon developent and testing because we can create back-door
> HEX files for RAM on FPGAs from Image.
>
> Signed-off-by: Anup Patel <anup at brainfault.org>
> ---
>  arch/riscv/Makefile             | 15 ++++++++-
>  arch/riscv/boot/.gitignore      |  2 ++
>  arch/riscv/boot/Makefile        | 33 ++++++++++++++++++
>  arch/riscv/boot/install.sh      | 60 +++++++++++++++++++++++++++++++++
>  arch/riscv/kernel/head.S        | 10 ++++++
>  arch/riscv/kernel/vmlinux.lds.S |  2 +-
>  6 files changed, 120 insertions(+), 2 deletions(-)
>  create mode 100644 arch/riscv/boot/.gitignore
>  create mode 100644 arch/riscv/boot/Makefile
>  create mode 100644 arch/riscv/boot/install.sh
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>

Tested with U-Boot s-mode on QEMU virt, using bootm to boot the kernel
Tested-by: Bin Meng <bmeng.cn at gmail.com>

Regards,
Bin



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