On Fri, 10 Nov 2023 at 06:27, Masahisa Kojima <masahisa.koj...@linaro.org> wrote: > > This adds the description about HTTP Boot. > > Signed-off-by: Masahisa Kojima <masahisa.koj...@linaro.org> > Reviewed-by: Ilias Apalodimas <ilias.apalodi...@linaro.org> > --- > doc/develop/uefi/uefi.rst | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > > diff --git a/doc/develop/uefi/uefi.rst b/doc/develop/uefi/uefi.rst > index fb16ac743a..ca9a573669 100644 > --- a/doc/develop/uefi/uefi.rst > +++ b/doc/develop/uefi/uefi.rst > @@ -642,6 +642,36 @@ UEFI variables. Booting according to these variables is > possible via:: > As of U-Boot v2020.10 UEFI variables cannot be set at runtime. The U-Boot > command 'efidebug' can be used to set the variables. > > +UEFI HTTP Boot > +~~~~~~~~~~~~~~ > + > +HTTP Boot provides the capability for system deployment and configuration > +over the network. HTTP Boot can be activated by specifying:: > +
Since we changed depends on to select this needs to change to CONFIG_EFI_HTTP_BOOT which in turn will enable ... Again, I can fix that on merge Thanks /Ilias > + CONFIG_CMD_DNS > + CONFIG_CMD_WGET > + CONFIG_BLKMAP > + > +Set up the load option specifying the target URI:: > + > + efidebug boot add -u 1 netinst http://foo/bar > + > +When this load option is selected as boot selection, resolve the > +host ip address by dns, then download the file with wget. > +If the downloaded file extension is .iso or .img file, efibootmgr tries to > +mount the image and boot with the default file(e.g. EFI/BOOT/BOOTAA64.EFI). > +If the downloaded file is PE-COFF image, load the downloaded file and > +start it. > + > +The current implementation tries to resolve the IP address as a host name. > +If the uri is like "http://192.168.1.1/foobar", > +the dns process tries to resolve the host "192.168.1.1" and it will > +end up with "host not found". > + > +We need to preset the "httpserverip" environment variable to proceed the > wget:: > + > + setenv httpserverip 192.168.1.1 > + > Executing the built in hello world application > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > -- > 2.34.1 >