For some operations it is necessary to process all objects in an expo.
Provide an iterator to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
As it is only called in bootmeth_efi.c
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Support booting ChromiumOS on ARM devices using FIT. Add an entry into the
boot implementation which does not require a command line. This can be
expanded over time as the bootm code is refactored.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
Use the two new functions to separate reading of the ChromiumOS info from
the partition from actually reading the kernel and booting it.
Signed-off-by: Simon Glass <sjg@chromium.org>
The code to read the ChromiumOS information from the partition is
currently all in one function.
Create a new function which reads the kernel, assuming that the metadata
has been parsed.
For now this function is not used. Future work will plumb it in.
Signed-off-by: Simon Glass <sjg@chromium.org>
The code to read the ChromiumOS information from the partition is
currently all in one function. It reads the entire kernel, which is
unnecessary unless it is to be booted.
Create a new function which reads just the minimum required data from the
disk, then obtains what it needs from there.
For now this function is not used. Future work will plumb it in.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
Create a new private structure to hold information gleaned from the disk.
This will allow separation between reading of the bootflow information and
(later) reading the whole kernel.
Signed-off-by: Simon Glass <sjg@chromium.org>
We want to avoid using #ifdefs around header files and in the code. It
makes sense to collect the various functions used for loading images into
a single header which can be included by all architectures. The best place
for this is the arch-neutral bootm.h header, so use that.
Move some zimage functions into this bootm.h header.
Signed-off-by: Simon Glass <sjg@chromium.org>
Create a common base from which the other parts are offset and make all
of the offsets related to that. This makes the code a little easier to
read.
Use X86_ prefixes for the two values which are x86-specific.
Drop OFFSET_BASE since it is available in a header field.
Drop the unnecessary 'start' variable too.
Signed-off-by: Simon Glass <sjg@chromium.org>
Decode the kernel start and size using the structures provided. This
accesses the same data, just in a cleaner way.
Add some logging for some of the fields in the kernel preamble.
Signed-off-by: Simon Glass <sjg@chromium.org>
ChromiumOS allows a kernel to be on either partition 2 or 4. Add support
for scanning both and using the first one we find with a suitable
signature.
Record the partition which is used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a header file with structures for booting ChromiumOS, taken from the
vboot tree. Using these makes it easier to understand the code.
Note that the code style has not been updated for U-Boot, with use of
uint64_t, __attribute__((packed)) and one comment-style nit. This should
make it easier to keep the code in sync. It was taken from commit:
5b8596ce ("2sha256_arm: Fix data abort issue")
Update the CHROMEOS string to use the defined values.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move the code which reads a partition into its own function. Add a
constant for the number of bytes to 'probe' at the start of the partition.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add some more output to make it easier to see what is going wrong when
a bootdev hunter fails.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This name is a little confusing since it suggests that it sets up the
sibling block device. In fact it sets up a bootdev for it. Rename the
function to make this clearer.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
It is not a parse error to have a default value of "0" for a "hex" type
entry, instead of "0x0". However, "0" and "0x0" are not treated the
same even by the tools themselves. Correct this by changing the default
value from "0" to "0x0" for all hex type questions that had the
incorrect default. Fix one instance (in two configs) of a default of "0"
being used on a hex question to be "0x0". Remove the cases where a
defconfig had set a value of "0x0" to be used as the default had been
"0".
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This should be allocating the memory for "item" instead of "menu".
The item struct is 48 bytes instead of 96 (assuming a 64bit system)
so this saves a little memory.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
These lines are supposed to be indented one more tab. Otherwise it's
confusing to read.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
The implementation in extlinux_pxe_getfile() does not pass a valid size
to bootmeth_read_file(), so this can fail if the uninited value happens to
be too small.
Fix this.
Signed-off-by: Simon Glass <sjg@chromium.org>
The implementation in distro_efi_try_bootflow_files() does not pass a
valid size to bootmeth_common_read_file(), so this can fail if the
uninted value happens to be too small.
Fix this.
This was reported by someone but I cannot now find the email.
Signed-off-by: Simon Glass <sjg@chromium.org>
The current bootflow-iteration algorithm reads the bootflow file into
an allocated memory buffer so it can be examined. This works well in
most cases.
However, while the common case is that the first bootflow is immediately
booted, it is also possible just to scan for available bootflows, perhaps
selecting one to boot later.
Even with the common case, EFI bootflows can be quite large. It doesn't
make sense to read it into an allocated buffer when we have kernel_addr_t
providing a suitable address for it. Even if we do have plenty of malloc()
space available, it is a violation of U-Boot's lazy-init principle to
read the bootflow before it is needed.
So overall it seems better to make a change.
Adjust the logic to read just the size of the EFI file at first. Later,
when the bootflow is booted, read the rest of the file into the designated
kernel buffer.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Da Xue <da@libre.computer>
Reported-by: Vincent Stehlé <vincent.stehle@arm.com>
This checks for a network-based bootflow in two places, one of which is
less than ideal. Move the correct test into a function and use it in both
places.
Signed-off-by: Simon Glass <sjg@chromium.org>
uclass_get_device_by_name() is meant to return 0 or a negative error code.
simple_itoa() cannot handle negative numbers.
This leads to output like:
=> bootdev list -p
Seq Probed Status Uclass Name
--- ------ ------ -------- ------------------
c [ ] 18446744073709551614 spi_flash spi.bin@0.bootdev
Convert the status to a positive number. Now we get
Seq Probed Status Uclass Name
--- ------ ------ -------- ------------------
c [ ] 2 spi_flash spi.bin@0.bootdev
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Enabling FIT_SIGNATURE required the old authentication method to be
disabled so disable this for K3 SOCs and enable FIT_SIGNATURE for K3
Platforms.
Signed-off-by: Kamlesh Gurudasani <kamlesh@ti.com>
[ cleanup the patch ]
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Change the device type from "usb_mass_storage" to "usb" when
booting a script.
Before this change:
=> printenv devtype
devtype=usb_mass_storage
After this change:
=> printenv devtype
devtype=usb
Signed-off-by: John Clark <inindev@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Some devices keep 2 copies of the bootloader_message in the misc
partition and write each in sequence when updating. This ensures that
there is always one valid copy of the bootloader_message. Teach u-boot
to optionally try a backup bootloader_message from a specified offset if
the primary one fails its CRC check.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
It is is sometimes desired to be able to skip decrementing the number of
tries remaining in an Android A/B boot, and instead just check which
slot will be tried later. This can commonly be be the case for platforms
that want to A/B u-boot itself, but are required to boot from a FAT MBR
partition. In these cases, u-boot must do an early check that the MBR
points to the correct A/B boot partition, and if not rewrite the MBR to
point to the correct one and reboot. Decrementing the try count in this
case is not desired because it means that each u-boot might constantly
ping-pong overwriting the MBR and rebooting until all the retries are
used up.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
It is possible to boot x86-based ChromeOS machines by parsing a table and
locating the kernel and command line. Add a bootmeth for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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>
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>
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>
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>
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>
Add a new 'cedit' command which allows editing configuration using an
expo. The configuration items appear as menus on the display.
This is extremely basic, only supporting menus and not providing any way
to load or save the configuration.
Signed-off-by: Simon Glass <sjg@chromium.org>
The only way to create an expo at present is by calling the functions to
create each object. It is useful to have more data-driven approach, where
the objects can be specified in a suitable file format and created from
that. This makes testing easier as well.
Add support for describing an expo in a devicetree node. This allows more
complex tests to be set up, as well as providing an easier format for
users. It also provides a better basis for the upcoming configuration
editor.
Signed-off-by: Simon Glass <sjg@chromium.org>
It looks better if menus have a bit of an inset, rather than be drawn hard
up against the background. Also, menu items look better if they have a bit
of spacing between them.
Add theme options for these and implement the required changes.
Signed-off-by: Simon Glass <sjg@chromium.org>
In 'popup' mode, the expo allows moving around the objects in a scene.
When 'enter' is pressed on a menu, it opens and the user can move around
the items in the menu.
Implement this using keypress handles and actions.
Signed-off-by: Simon Glass <sjg@chromium.org>
When a menu is opened, it must be displayed over all other objects in
the scene, so that all its items are visible.
Handle this by drawing the menu object a second time, after all other
objects have been drawn. Draw all of the objects which are dependent
on the menu object.
Signed-off-by: Simon Glass <sjg@chromium.org>
When a popup menu is closed it shows only the selected item. When it is
open it shows a background and all items, with a highlight that can be
moved between the items.
Add the drawing logic for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we only support a single menu, so all that can be pointed to
is the current menu item. Rename this action so that we can also add
an action for pointing to an object. This will allow cycling through
the objects in a scene.
Signed-off-by: Simon Glass <sjg@chromium.org>
