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path: root/boot/bootflow.c
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2024-07-18bootstd: Add bootflow_iter_check_mmc() helperMattijs Korpershoek
Some bootflows might be able to only boot from MMC devices. Add a helper function these bootflows can use. Reviewed-by: Igor Opaniuk <igor.opaniuk@gmail.com> Reviewed-by: Julien Masson <jmasson@baylibre.com> Reviewed-by: Guillaume La Roque <glaroque@baylibre.com> Tested-by: Guillaume La Roque <glaroque@baylibre.com> Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-06boot: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from all "boot/" files and when needed add missing include files directly. Signed-off-by: Tom Rini <trini@konsulko.com>
2024-03-04bootstd: support scanning a single partitionNam Cao
The "bootflow" command currently doesn't support scanning a single partition. This is inconvenient in setups with multiple bootable partitions within a single disk, but only one is desired. Support scanning a single disk partition. Specifically, support the syntax: bootflow scan mmc1:4 which scans only mmc device 1, partition 4. Signed-off-by: Nam Cao <namcao@linutronix.de>
2024-01-18boot: remove dead code in bootflow_check()Heinrich Schuchardt
The 'return 0;' statement is not reachable. Remove it. 'else' is superfluous after an if statement with return. Addresses-Coverity-ID: 352451 ("Logically dead code") Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2023-11-17bootstd: Avoid freeing a non-allocated bufferSimon Glass
EFI applications can be very large and thus used to cause boot failures when malloc() space was exhausted. A recent changed fixed this by using the kernel_addr_r environment var as the address of the buffer. However, it still frees the buffer when the bootflow is discarded. Fix this by introducing a flag to indicate whether the buffer was allocated, or not. Note that kernel_addr_r is not the last word here. It might be better to use lmb to place images. But there is a lot of refactoring to do before we can remove the environment variables. The distro scripts rely on them so it is safe for bootstd to do so too. Fixes: 6a8c2f9781c bootstd: Avoid allocating memory for the EFI file Signed-off-by: Simon Glass <sjg@chromium.org> Reported by: Simon Glass <sjg@chromium.org> Reported by: Shantur Rathore <i@shantur.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Tested-by: Shantur Rathore <i@shantur.com>
2023-11-01bootstd: Handle a few special cases in cmdline_set_arg()Simon Glass
Two bugs have appeared: - arguments can have an equals sign embedded in them, which must be considered part of the value - arguments must fully match the name; partial matches should be ignored Fix these and add a test to cover both. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-10-23bootstd: Scan all bootdevs in a boot_targets entry (take 2)Simon Glass
When the boot_targets environment variable is used with the distro-boot scripts, each device is included individually. For example, if there are three mmc devices, then we will have something like: boot_targets="mmc0 mmc1 mmc2" In contrast, standard boot supports specifying just the uclass, i.e.: boot_targets="mmc" The intention is that this should scan all MMC devices, but in fact it currently only scans the first. Update the logic to handle this case, without required BOOTSTD_FULL to be enabled. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Date Huang <tjjh89017@hotmail.com> Reported-by: Vincent Stehlé <vincent.stehle@arm.com> Reported-by: Ivan Ivanov <ivan.ivanov@suse.com> Tested-by: Ivan T.Ivanov <iivanov@suse.de>
2023-10-23bootstd: Correct logic for single uclassSimon Glass
The current logic for "bootflow mmc" is flawed since it checks the uclass of the bootdev instead of its parent, the media device. Correct this and add a test that covers this scenario. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Ivan T.Ivanov <iivanov@suse.de>
2023-10-23Revert "bootstd: Scan all bootdevs in a boot_targets entry"Simon Glass
This commit was intended to allow all bootdevs in each boot_targets entry to be scanned. However it causes bad ordering with bootdevs, e.g. scanning Ethernet bootdevs when it should be keeping to mmc. Revert it so we can try another approach. This reverts commit e824d0d0c219bc6da767f13f90c5b00eefe929f0. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Ivan T.Ivanov <iivanov@suse.de>
2023-10-13bootstd: Scan all bootdevs in a boot_targets entrySimon Glass
When the boot_targets environment variable is used with the distro-boot scripts, each device is included individually. For example, if there are three mmc devices, then we will have something like: boot_targets="mmc0 mmc1 mmc2" In contrast, standard boot supports specifying just the uclass, i.e.: boot_targets="mmc" The intention is that this should scan all MMC devices, but in fact it currently only scans the first. Update the logic to handle this case, without required BOOTSTD_FULL to be enabled. I believe at least three people reported this, but I found two. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Date Huang <tjjh89017@hotmail.com> Reported-by: Vincent Stehlé <vincent.stehle@arm.com>
2023-08-11bootstd: Add a command to read all files for a bootflowSimon Glass
Some bootflows (such as EFI and ChromiumOS) delay reading the kernel until it is needed to boot. This saves time when scanning and avoids needing to allocate memory for something that may never be used. To permit reading of these files, add a new 'bootflow read' command. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10bootstd: Add private bootmeth data to the bootflowSimon Glass
Some bootmeths need to store their own information related to the bootflow, in addition to the generic information in struct bootflow. Add a pointer for this. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-07-17bootstd: Support automatically setting Linux parametersSimon Glass
Some Linux parameters can be set automatically by U-Boot, if it knows the device being used. For example, since U-Boot knows the serial console being used, it can add parameters for earlycon and console. Add support for this. Note that this is an experimental feature and we will see how useful it turns out to be. It is very handy for ChromeOS, since otherwise it is very difficult to manually determine the UART address or port number, particularly in a script. Provide an example of how this is used with ChromeOS. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2023-07-17bootstd: Add support for updating elements of the cmdlineSimon Glass
Add a bootflow command to update the command line more easily. This allows changing a particular parameter rather than editing a very long strings. It is also easier to handle with scripting. The new 'bootflow cmdline' command allows getting and setting single parameters. Fix up the example output while we are here, since there are a few new items. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2023-07-17bootstd: Add a function to update a command lineSimon Glass
The Linux command line consists of a number of words with optional values. At present U-Boot allows this to be changed using the bootargs environment variable. But this is quite painful, since the command line can be very long. Add a function which can adjust a single field in the command line, so that it is easier to make changes before booting. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2023-07-16bootstd: Use the bootargs env var for changing the cmdlineSimon Glass
The "bootargs" environment variable is used to set the command-line arguments to pass to the OS. Use this same mechanism with bootstd as well. When the variable is updated, it is written to the current bootflow. When the current bootflow is updated, the environment variable is updated too. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2023-07-16bootstd: Use bootdev instead of bootdeviceSimon Glass
It seems better to call this a 'bootdev' since this is name used in the documentation. The older 'Bootdevice' name is no-longer used and may cause confusion with the 'bootdevice' environment variable. Update throughout to use bootdev. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2023-03-08bootstd: Replicate the dtb-filename quirks of distrobootSimon Glass
For EFI, the distro boot scripts search in three different directories for the .dtb file. The SOC-based filename fallback is supported only for 32-bit ARM. Adjust the code to mirror this behaviour. Also some boards can use a prior-stage FDT if one is not found in the normal way. Support this and show a message in that case. Signed-off-by: Simon Glass <sjg@chromium.org> Suggested-by: Mark Kettenis <kettenis@openbsd.org>
2023-03-08bootflow: Rename bootflow_flags_tSimon Glass
These flags actually relate to the iterator, not the bootflow struct itself. Rename them. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-02-06qemu: Add a bootmeth for qfwSimon Glass
This supports reading a kernel and ramdisk from qfw, then loading it with either the booti or bootz commands. For now this uses the existing booti and bootz commands, rather than trying to call that functionality directly (e.g. do_bootm_states()). It does not require the HUSH parser though, which helps a little with size. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-02-06bootstd: Probe the block device before useSimon Glass
In some cases the block device is obtained but is not probed, since it is a sibling of the bootdev. Make sure it is probed, so it can be used without any trouble. This fixes a bug with virtio, where the device is accessed before it has been set up by the virtio uclass. Signed-off-by: Simon Glass <sjg@chromium.org> Fixes: 201417d700a ("bootstd: Add the bootdev uclass") Reported-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2023-01-23bootstd: Add a little more logging of bootflowsSimon Glass
Add some logging to aid debugging of problems with bootflows. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23bootstd: Record the bootdevs used during scanningSimon Glass
Add a way to record the bootdevs used when scanning for bootflows. This is useful for testing. Enable this only with BOOTSTD_FULL and do the same for the progress reporting. Re-enable and update the affected tests now that we have this feature. For bootdev_test_order_default() there is no-longer any support for using the bootdev aliases to specify an ordering, so drop that part of the test. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23bootstd: Drop the old bootflow_scan_first()Simon Glass
This function is not used outside tests. Drop it and rename bootflow_scan_dev() since it is how we start a scan now. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23bootstd: Allow scanning a single bootdev labelSimon Glass
We want to support scanning a single label, like 'mmc' or 'usb0'. Add this feature by plumbing the label through to the iterator, setting a flag to indicate that only siblings of the initial device should be used. This means that scanning a bootdev by its name is not supported anymore. That feature doesn't seem very useful in practice, so it is no great loss. Add a test for bootdev_find_by_any() while we are here. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23bootstd: Switch bootdev scanning to use labelsSimon Glass
At present we set up the bootdev order at the start, then scan the bootdevs one by one. However this approach cannot be used with hunters, since the bootdevs may not exist until the hunter is used. Nor can we just run all the hunters at the start, since that violate's U-Boot's 'lazy init' requirement. It also increases boot time. So we need to adjust the algorithm to scan by labels instead. As a first step, drop the dev_order[] array in favour of a list of labels. Update the name of bootdev_setup_iter_order() to better reflect what it does. Update some related comments and log messages. Also disable a few tests until a later commit where we can use them. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23bootstd: Add a SPI flash bootdevSimon Glass
Add a bootdev for SPI flash so that these devices can be used with standard boot. It only supports loading a script. Add a special case for the label, since we want to use "spi", not "spi_flash". Enable the new bootdev on sandbox. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23bootstd: Include the device tree in the bootflowSimon Glass
Some bootmeths provide a way to load a device tree as well as the base OS image. Add a way to store this in the bootflow. Update the 'bootflow info' command to show this information. Note that the device tree is not allocated, but instead is stored at an address provided by an environment variable. This may need to be adjusted at some point, but for now it works well and fits in with the existing distro-boot scripts. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23bootstd: Rename bootdev checkersSimon Glass
These functions return 0 if the check passes, so the names are somewhat confusing. Rename them. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-16bootstd: Read the Operating System name for distro/scriptsSimon Glass
Add the concept of an OS name to the bootflow. This typically includes the OS name, version and kernel version. Implement this for the distro and script bootmeths so that it works with Armbian and older version of Fedora. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-31bootstd: Add a way to set up a bootflowSimon Glass
Add a function to init a bootflow, to reduce code duplication. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12bootstd: Allow scanning for global bootmeths separatelySimon Glass
Typically we want to find and use global bootmeths first, since they have the best idea of how the system should boot. We then use normal bootmeths as a fallback. Add the logic for this, putting global bootmeths at the end of the ordering. We can then easily scan the global bootmeths first, then drop them from the list for subsequent bootdev-centric scans. This changes the ordering of global bootmeths, so update the bootflow_system() accordingly. Drop the comment from bootmeth_setup_iter_order() since this is an exported function and it should be in the header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12bootstd: Support bootflows with global bootmethsSimon Glass
Add support for handling this concept in bootflows. Update the 'bootflow' command to allow only the normal bootmeths to be used. This alllows skipping EFI bootmgr and VBE, for example. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12bootstd: Allow the bootdev to be optional in bootflowsSimon Glass
With global bootmeths we want to scan without a bootdev. Update the logic to allow this. Change the bootflow command to show the bootdev only when valid. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25bootstd: Add support for bootflowsSimon Glass
Add support for bootflows, including maintaining a list of them and iterating to find them. Signed-off-by: Simon Glass <sjg@chromium.org>