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A "Synchronous Abort" CPU exception happens on an attempt to run the
"bootflow info" command for a global boot method (e.g. efi_mgr):
=> bootflow select 0
=> bootflow info
"Synchronous Abort" handler, esr 0x96000006, far 0x8
It happens because do_bootflow_info() tries to dereference bflow->dev,
which is NULL in case of efi_mgr. Add the corresponding check to prevent
this NULL pointer dereference and make "bootflow info" command work
properly for global boot methods.
Fixes: 2d653f686b6d ("bootstd: Add a bootflow command")
Signed-off-by: Sam Protsenko <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
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Rather than returning a bootflow, return the index of the bootflow. This
will allow callers to do their own translation to bootflows or some
other data structure.
Also return a special code when the user tries to move the pointer, so
that the caller can cancel the boot-menu timeout, if this is in use.
Signed-off-by: Simon Glass <[email protected]>
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Within tests it is useful to be able to control rendering of the expo.
Drop the automatic call to expo_render() within expo_poll() and adjust
its callers to handle this instead.
Signed-off-by: Simon Glass <[email protected]>
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Split the starting piece of this function into bootflow_menu_start()
and the polling part into bootflow_menu_poll() so that it is possible
for the caller to be in control of the event loop.
Move the expo_destroy() call into the caller.
Signed-off-by: Simon Glass <[email protected]>
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Both bootflow_menu and cedit use similar logic to poll an expo. Move
this into the expo library so the code can be shared.
Update bootflow_menu_run() to return -EPIPE when the user quits without
choosing anything, since -EAGAIN is ambiguous and elsewhere means that
there is no input yet.
Signed-off-by: Simon Glass <[email protected]>
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The include file <command.h> does not need anything from <env.h>.
Furthermore, include/env.h itself includes other headers which can lead
to longer indirect inclusion paths. To prepare to remove <env.h> from
<command.h> fix all of the places which had relied on this indirect
inclusion to instead include <env.h> directly.
Reviewed-by: Mattijs Korpershoek <[email protected]> # android, bcb
Reviewed-by: Jerome Forissier <[email protected]> # spawn
Signed-off-by: Tom Rini <[email protected]>
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in extlinux / PXE""
This reverts commit 8bc3542384e3a1219e5ffb62b79d16dddc1b1fb9, reversing
changes made to 698edd63eca090a2e299cd3facf90a0b97bed677.
There are still problems with this series to work out.
Link: https://lore.kernel.org/u-boot/CAFLszTjw_MJbK9tpzVYi3XKGazcv55auBAdgVzcAVUta7dRqcg@mail.gmail.com/
Signed-off-by: Tom Rini <[email protected]>
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Any 'bootable' flag in a DOS partition causes boostd to only scan
bootable partitions for that media. This can mean that extlinux.conf
files on the root disk are missed.
Put this logic behind a flag and update the documentation.
For now, the flag is enabled, to preserve the existing behaviour of
bootstd which is to ignore non-bootable partitions so long as there is
at least one bootable partition on the disk. Future work may provide a
command (or some other mechanism) to control this.
Signed-off-by: Simon Glass <[email protected]>
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This value is include the bootm_info, so drop the unnecessary parameter.
Signed-off-by: Simon Glass <[email protected]>
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The address of the bzImage is not recorded in the bootflow, so we cannot
actually locate the version at present. Handle this case, to avoid
showing invalid data.
Signed-off-by: Simon Glass <[email protected]>
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Rather than holding the state in the implementation code, move it to the
command code. The state is now passed to the implementation functions
and can there (with future work) be pass in from bootstd, without going
through the commands.
Signed-off-by: Simon Glass <[email protected]>
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Use an alist for this data structure as it is somewhat simpler to
manage. This means that bootstd holds a simple list of bootflow structs
and can drop it at will, without chasing down lists.
Signed-off-by: Simon Glass <[email protected]>
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This relates to more than just the bootdev, since there is a global list
of bootflows. Move the function to the bootstd file and rename it.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Heinrich Schuchardt <[email protected]>
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This relates to more than just the bootdev, since there is a global list
of bootflows. Move the function to the bootstd file and rename it.
Signed-off-by: Simon Glass <[email protected]>
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When the buffer address is not set, say so, rather than showing an
address which looks very strange, on sandbox.
Signed-off-by: Simon Glass <[email protected]>
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This should really use an address rather than the buffer. Update it in
the command.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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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 <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Remove <common.h> from all "cmd/" files and when needed add
missing include files directly.
Signed-off-by: Tom Rini <[email protected]>
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Checking argc < 3 twice is redundant.
Addresses-Coverity-ID: 477198 Logically dead code
Fixes: 921f63e57238 ("bootflow: Allow setting a cmdline arg with no value")
Signed-off-by: Heinrich Schuchardt <[email protected]>
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This is supposed to be supported by the 'bootflow cmd' command, at
least according to the help. There is a 'bootflow cmd clear' but it is
often more intuitive to use 'bootcmd cmd set' with an empty value.
Update the command to pass BOOTFLOWCL_EMPTY in this case.
Signed-off-by: Simon Glass <[email protected]>
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Allow showing a menu and automatically booting, with 'bootflow scan'.
This is more convenient than using a script.
Signed-off-by: Simon Glass <[email protected]>
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Return an error when the user does not select an OS, so we know whether
to boot or not.
Move calling of bootflow_menu_run() into a separate function so we can
call it from other places.
Expand the test to cover these cases.
Add some documentation also, while we are here.
Signed-off-by: Simon Glass <[email protected]>
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- Generally we just drop the #ifdef CONFIG_SYS_LONGHELP and endif lines
and use U_BOOT_LONGHELP to declare the same variable name as before
- In a few places, either rename the variable to follow convention or
introduce the variable as it was being done inline before.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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At present 'bootflow list' shows <NULL> for the filename when it is not
present. Show an empty string instead, since that is more user-friendly.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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Provide an option to dump this information if available.
Move the funciion prototype to the common x86 header. Allow the command
line to be left out since 'bootflow info' show this itself and it is
not in the correct place in memory until the kernel is actually booted.
Fix a badly aligned heading while we are here.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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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 <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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On x86 boards Linux uses a block of binary data to provide information
about the command line, memory map, etc. Provide a way to store this in
the bootflow so it can be passed on to the OS.
No attempt is made to generalise the code, since other archs don't need
this information. The field is present always, though, to avoid needing
accessors or #ifdefs when building code on other archs.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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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 <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Some operating systems have a command line which can be adjusted before
booting. Store this in the bootflow so it can be controlled within
U-Boot.
Fix up the example output while we are here, since there are a few new
items.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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In a few cases the error handling is not quite right. Make sure we
return the actual error in distro_efi_read_bootflow_file() rather than
-EINVAL. Return -IO when a file cannot be read. Also show the error name
if available.
This does not change operation, but does make it easier to diagnose
problems.
Signed-off-by: Simon Glass <[email protected]>
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The patch to relax flag requirements was not accepted[1], so we still have
to have separate bootcommands depending on CMD_BOOTFLOW_FULL.
The previous attempt at this did not work, since it used the wrong name
for the options.
Fix this and change the message to mention BOOTSTD_FULL since this affects
not just the flags, but all functionality, so is more likely what the user
wants.
Drop the useless condition on CMD_BOOTFLOW_FULL while we are here.
[1] https://patchwork.ozlabs.org/project/uboot/patch/[email protected]/
Signed-off-by: Simon Glass <[email protected]>
Fixes: a91492b6e9c ("bootstd: Provide a default command")
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When building this with clang, we get a warning such as:
cmd/bootflow.c:412:27: warning: variable 'bflow' is uninitialized when used here [-Wuninitialized]
printf("Selected: %s\n", bflow->os_name ? bflow->os_name : bflow->name);
^~~~~
And a suggestion to just initialize bflow to NULL. This would however
would be ensuring a bad dereference. Instead, looking at the function we
rework things so that when CONFIG_EXPO is not enabled (and so, no UI) we
error early and would never reach this point in the code. Simplify the
rest slightly as well while at this.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Enable some messages that might provide hints, but only for
CMD_BOOTFLOW_FULL since otherwise the -l flag is not available.
Signed-off-by: Simon Glass <[email protected]>
Suggested-by: Tom Rini <[email protected]>
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These flags actually relate to the iterator, not the bootflow struct
itself. Rename them.
Signed-off-by: Simon Glass <[email protected]>
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It is sometimes useful to have one without the other, e.g. on a device
without a display, since at present the expo feature requires CONFIG_VIDEO
to be enabled.
Update the Makefile and bootflow command to support this, as well as the
EXPO dependency.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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Add a flag to control whether hunters are used when scanning for
bootflows. Enable it by default and tidy up the flag comments a little.
Fow now this has no effect, until a future patch enables this feature.
Signed-off-by: Simon Glass <[email protected]>
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These are associated with the ethernet boot device but do not match its
uclass name, so handle them as special cases.
Provide a way to pass flags through with the bootdev so that we know
how to process it. The flags are checked by the bootmeths, to ensure that
only the selected bootmeth is used.
While these both use the network device, they work quite differently. It
is common to run only one of these, or to run PXE before DHCP. Provide
bootflow flags to control which methods are used. Check these in the two
bootmeths so that only the chosen one is used.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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Create an expo to handle the boot menu. For now this is quite simple, with
just a header, some menu items and a pointer to show the current one.
Signed-off-by: Simon Glass <[email protected]>
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Some operating systems provide a logo in bmp format. Read this in if
present so it can be displayed in the menu.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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Add a 'bootflow' command to handle listing and selection of bootflow.
Signed-off-by: Simon Glass <[email protected]>
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