[PATCH 1/2] cmd: load: add load command for memory mapped
trini at konsulko.com
Wed Mar 23 14:22:58 CET 2022
On Tue, Mar 22, 2022 at 10:41:17AM +0000, Rui Miguel Silva wrote:
> cp.b is used a lot as a way to load binaries to memory and execute
> them, however we may need to integrate this with the efi subsystem to
> set it up as a bootdev.
> So, introduce a loadm command that will be consistent with the other
> loadX commands and will call the efi API's.
> ex: loadm $kernel_addr $kernel_addr_r $kernel_size
> with this a kernel with CONFIG_EFI_STUB enabled will be loaded and
> then subsequently booted with bootefi command.
> Signed-off-by: Rui Miguel Silva <rui.silva at linaro.org>
> README | 1 +
> cmd/Kconfig | 6 ++++
> cmd/bootefi.c | 12 ++++++++
> cmd/load.c | 48 ++++++++++++++++++++++++++++++++
> include/efi_loader.h | 2 ++
> lib/efi_loader/efi_device_path.c | 9 ++++++
> 6 files changed, 78 insertions(+)
> diff --git a/README b/README
> index fe3ba01865e6..2932734b3edc 100644
> --- a/README
> +++ b/README
> @@ -2693,6 +2693,7 @@ rarpboot- boot image via network using RARP/TFTP protocol
> diskboot- boot from IDE devicebootd - boot default, i.e., run 'bootcmd'
> loads - load S-Record file over serial line
> loadb - load binary file over serial line (kermit mode)
> +loadm - load binary blob from source address to destination address
> md - memory display
> mm - memory modify (auto-incrementing)
> nm - memory modify (constant address)
There's likely a spot under doc/ that needs updating now too, as we move
to having better documentation.
> diff --git a/cmd/Kconfig b/cmd/Kconfig
> index 564daa7bbc8d..d70e8398a558 100644
> --- a/cmd/Kconfig
> +++ b/cmd/Kconfig
> @@ -1076,6 +1076,12 @@ config CMD_LOADB
> Load a binary file over serial line.
> +config CMD_LOADM
> + bool "loadm"
> + default y
> + help
> + Load a binary over memory mapped.
We don't make new commands default y for everyone, that adds to every
board. This also needs a test, and should be enabled in sandbox so it
is tested and also passed through coverity.
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