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path: root/include/pxe_utils.h
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2022-12-12cmd: pxe: support INITRD and FDT selection with FITPatrick Delaunay
Since the commit d5ba6188dfbf ("cmd: pxe_utils: Check fdtcontroladdr in label_boot") the FDT or the FDTDIR label is required in extlinux.conf and the fallback done by bootm command when only the device tree present in this command parameters is no more performed when FIT is used for kernel. When the label FDT or FDTDIR are absent or if the device tree file is absent, the PXE command in U-Boot uses the default U-Boot device tree selected by fdtcontroladdr = gd->fdt_blob, it is the "Scenario 3". With this scenario the bootm FIP fallback is no more possible with the extlinux.conf when only "kernel" label is present and is a FIP: kernel <path>#<conf>[#<extra-conf[#...]] As the U-Boot FDT is always provided in the third bootm argument, the device tree found in FIP is not used as fallback, it was done previously in boot_get_fdt(). This patch adds a new field kernel_label to save the full kernel label. The FDT bootm parameters use the kernel address (to avoid to load a second time the same FIP) and the config when this full label is reused for "fdt" or "initrd" label. This FIP support in extlinux.conf is restored when the "FDT" label can be found and select the same FIP (identical file and configuration): kernel <path>#<conf>[#<extra-conf[#...]] fdt <path>#<conf>[#<extra-conf[#...]] The patch add also this possibility for initrd. initrd <path>#<conf>[#<extra-conf[#...]] Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
2022-02-11cmd: pxe_utils: sysboot: add kaslr-seed generation supportZhang Ning
this will add kaslrseed keyword to sysboot lable, when it set, it will request to genarate random number from hwrng as kaslr-seed. with this patch exlinux.conf label looks like label l0 menu testing linux /boot/vmlinuz-5.15.16-arm initrd /boot/initramfs-5.15.16-arm.img fdtdir /boot/dtbs/5.15.16-arm/ kaslrseed append root=UUID=92ae1e50-eeeb-4c5b-8939-7e1cd6cfb059 ro Tested on Khadas VIM with kernel 5.16.0-rc5-arm64, Debian 11. Signed-off-by: Zhang Ning <zhangn1985@qq.com>
2022-01-19doc: replace @return by Return:Heinrich Schuchardt
Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2021-11-11pxe: Allow calling the pxe_get logic directlySimon Glass
Refactor this code so that we can call the 'pxe get' command without going through the command-line interpreter. This makes it easier to get the information we need, without going through environment variables. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Artem Lapkin <email2tema@gmail.com> Tested-by: Artem Lapkin <email2tema@gmail.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-11pxe: Return the file size from the getfile() functionSimon Glass
It is pretty strange that the pxe code uses the 'filesize' environment variable find the size of a file it has just read. Partly this is because it uses the command-line interpreter to parse its request to load the file. As a first step towards unwinding this, return it directly from the getfile() function. This makes the code a bit longer, for now, but will be cleaned up in future patches. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Artem Lapkin <email2tema@gmail.com> Tested-by: Artem Lapkin <email2tema@gmail.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-11pxe: Drop get_bootfile_path()Simon Glass
This function no longer makes sense, since it is pretty easy to prepend the boot directory to the filename. Drop it and update its only caller. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Artem Lapkin <email2tema@gmail.com> Tested-by: Artem Lapkin <email2tema@gmail.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-11pxe: Clean up the use of bootfileSimon Glass
The 'bootfile' environment variable is read in the bowels of pxe_util to provide a directory to which all loaded files are relative. This is not obvious from the API to PXE and it is strange to make the caller set an environment variable rather than pass this as a parameter. The code is also convoluted, which this feature implemented by get_bootfile_path(). Update the API to improve this. Unfortunately this means that pxe_setup_ctx() can fail, so add error checking. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Artem Lapkin <email2tema@gmail.com> Tested-by: Artem Lapkin <email2tema@gmail.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-11pxe: Move common parsing coding into pxe_utilSimon Glass
Both the syslinux and pxe commands use essentially the same code to parse and run extlinux.conf files. Move this into a common function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Artem Lapkin <email2tema@gmail.com> Tested-by: Artem Lapkin <email2tema@gmail.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-11pxe: Move pxe_utils filesSimon Glass
Move the header file into the main include/ directory so we can use it from the bootmethod code. Move the C file into boot/ since it relates to booting. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Artem Lapkin <email2tema@gmail.com> Tested-by: Artem Lapkin <email2tema@gmail.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>