[PATCH v6 0/9] Add EFI HTTP boot support

[Michal Simek]

On 10/16/23 04:39, Masahisa Kojima wrote:
> On Mon, 16 Oct 2023 at 08:50, Masahisa Kojima
> <masahisa.kojima at linaro.org> wrote:
>>
>> This series adds the EFI HTTP boot support.
>> User can add the URI device path with "efidebug boot add" command.
>> efibootmgr handles the URI device path, download the
>> specified file using wget, mount the downloaded image with
>> blkmap, then boot with the default file(e.g. EFI/BOOT/BOOTAA64.EFI)
>> by selecting automatically created boot option when the new disk is
>> detected.
>>
>> This version still does not include the test.
>>
>> To enable EFI HTTP boot, we need to enable the following Kconfig options.
>>   CONFIG_CMD_DNS
>>   CONFIG_CMD_WGET
>>   CONFIG_BLKMAP
>>   CONFIG_EFI_HTTP_BOOT
>>
>> On the Socionext Developerbox, enter the following commands then
>> debian installer is downloaded into "loadaddr" and installer
>> automatically starts.
>>   => dhcp
>>   => setenv serverip 192.168.1.1
>>   => efidebug boot add -u 3 debian-netinst http://ftp.riken.jp/Linux/debian/debian-cd/12.1.0/arm64/iso-cd/debian-12.1.0-arm64-netinst.iso
>>   => efidebug boot order 3
>>   => bootefi bootmgr
>>
>> Note that this debian installer can not proceed the installation
>> bacause RAM disk of installer image is not recogniged by the kernel.
>> I'm still investigating this issue, but drivers/nvdimm/of_pmem.c in linux
>> will be one of the solution to recognize RAM disk from kernel.
>> (In EDK2, the equivalent solution is called ACPI NFIT.)
>>
>> On QEMU, I can not make DNS work from the QEMU guest.
>> The following commands work on qemu_arm64(manually set the http server ip in URI).
>>    => dhcp
>>    => setenv gatewayip 10.0.2.2
>>    => setenv httpserverip 134.160.38.1
>>    => efidebug boot add -u 3 debian-netinst http://134.160.38.1/Linux/debian/debian-cd/12.1.0/arm64/iso-cd/debian-12.1.0-arm64-netinst.iso
>>    => efidebug boot order 3
>>    => bootefi bootmgr
>>
>> [TODO]
>> - add test
>> - stricter wget uri check
>> - omit the dns process if the given uri has ip address
>>     -> this will be supported when the lwip migration completes
>> - uri device path support in eficonfig
>>
>> [change log]
>> v5 -> v6
>> - add patch #4 "Boot var automatic management for removable medias"
>> - boot from automatically created boot option
>>    rather than searching default file on the fly
>> - introduce new CONFIG_EFI_HTTP_BOOT Kconfig option
>> - comment in one place
>> - use log_err() rather than printf()
>> - use env_get_hex("filesize", 0) instead of return value of net_loop()
>> - use more suitable error code
>> - blkmap can be build for SPL/TPL
>> - add CDROM short-form device path support
> 
> Sorry but I forgot to include the necessary changes.
> I will resend this series soon.

Which pretty much means that that next series is v7. If not you will confuse 
tools like b4.

Thanks,
Michal