On devices with multiple USB mass storage devices errors like
Path /../USB(0x0,0x0)/USB(0x1,0x0)/Ctrl(0x0)
already installed.
are seen. This is due to creating non-unique device paths. To uniquely
identify devices we must provide path nodes for all devices on the path
from the root device.
Add support for generating device path nodes for all uclasses.
Reported-by: Suniel Mahesh <sunil@amarulasolutions.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Do not assume that the preceding device path contains a single VenHW node.
Instead use the return value of dp_fill() which provides the address of the
next node.
Fixes: 23ad52fff4 ("efi_loader: device_path: support Sandbox's "host" devices")
Fixes: 19ecced71c ("efi_loader: device path for virtio block devices")
Fixes: 272ec6b453 ("efi_loader: device_path: support blkmap devices")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
The devnum value of the blk_desc structure starts from 0,
current efi_bl_create_block_device() function creates
two "efiblk#0" devices for the cases that blk_find_max_devnum()
returns -ENODEV and blk_find_max_devnum() returns 0(one device
found in this case).
This commit uses blk_next_free_devnum() instead of blk_find_max_devnum().
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
A previous patch is removing the last consumer of efi_remove_protocol().
Switch that to static and treat it as an internal API in order to force
users install and remove protocols with the appropriate EFI functions.
It's worth noting that we still have files using efi_add_protocol(). We
should convert all these to efi_install_multiple_protocol_interfaces()
and treat efi_add_protocol() in a similar manner
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
The TCG2 protocol currently adds and removes protocols with
efi_(add/remove)_protocol().
Removing protocols with efi_remove_protocol() might prove
problematic since it doesn't call DisconnectController() when
uninstalling the protocol and does not comply with the UEFI specification.
It's also beneficial for readability to have protocol installations and
removals in pairs -- IOW when efi_install_multiple_protocol_interfaces()
is called, efi_uninstall_multiple_protocol_interfaces() should be used to
remove it. So let's swap the efi_add_protocol() as well.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
The call to efi_search_obj() is redundant as the function is called in
efi_search_protocol() too.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
U-Boot sets up the ACPI tables during startup. Rather than creating a
new set, install the existing ones. Create a memory-map record to cover
the tables.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The CMD_EFIDEBUG option enables debugging so it is reasonable to assume
that all effects should be made to decode the dreaded UUIDs favoured by
UEFI.
Update the table to show them all when CONFIG_CMD_EFIDEBUG is enabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
We recently fixed a few issues wrt to controller handling. Add a few
test cases to cover the new code.
- return EFI_DEVICE_ERROR the first time the protocol interface of
the controller is uninstalled, after all the children have been
disconnected. This should make the drivers reconnect
- add tests to verify controllers are reconnected when uninstalling a
protocol fails
- add tests to make sure EFI_NOT_FOUND is returned if a non existent
interface is being removed
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Up to now we did not check the return value of DisconnectController.
A previous patch is fixing that taking into account what happened during
the controller disconnect. But that check takes place before our code
is trying to figure out if the interface exists to begin with. In case a
driver is not allowed to unbind -- e.g returning EFI_DEVICE_ERROR, we
will end up returning that error instead of EFI_NOT_FOUND.
Add an extra check on the top of the function to make sure the protocol
interface exists before trying to disconnect any drivers
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
efi_uninstall_protocol() calls efi_disconnect_all_drivers() but never
checks the return value. Instead it tries to identify protocols that
are still open after closing the ones that were opened with
EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL, EFI_OPEN_PROTOCOL_GET_PROTOCOL
and EFI_OPEN_PROTOCOL_TEST_PROTOCOL.
Instead of doing that, check the return value early and exit if
disconnecting the drivers failed. Also reconnect all the drivers of
a handle if protocols are still found on the handle after disconnecting
controllers and closing the remaining protocols.
While at it fix a memory leak and properly free the opened protocol
information when closing a protocol.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
efi_disconnect_controller() doesn't reconnect drivers in case of
failure. Reconnect the disconnected drivers properly
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
The boot variables automatically generated for removable medias
should be with short form of device path without device nodes.
This is a requirement for the case that a removable media is
plugged into a different port but is still able to work with the
existing boot variables.
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Correct the return code for out-of-memory and no boot option found
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Rename and move bootorder and bootoption apis from cmd to lib
for re-use between eficonfig and bootmgr
Fix 'unexpected indentation' when 'make htmldocs' after functions
are moved
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Uncompressing a 1.7Mbytes FIT image on U-boot 2023.04 takes
approx 7s on a powerpc 8xx.
The same on U-boot 2023.07-rc6 takes approx 28s unless watchdog
is disabled.
During that decompression, LzmaDec_DecodeReal() calls schedule
1.6 million times, that is every 4µs in average.
In the past it used to be a call to WATCHDOG_RESET() which was
just calling hw_watchdog_reset().
But the combination of commit 29caf9305b ("cyclic: Use schedule()
instead of WATCHDOG_RESET()") and commit 26e8ebcd7c ("watchdog:
mpc8xxx: Make it generic") results in an heavier processing.
However, there is absolutely no point in calling schedule() that
often.
By moving and keeping only one call to schedule() in the main
loop the number of calls is reduced to 1.2 million which is still
too much. So add logic to only call schedule every 1024 times.
That leads to a call to schedule approx every 6ms which is still
far enough to entertain the watchdog which has a 1s timeout on
powerpc 8xx.
powerpc 8xx being one of the slowest targets we have today in
U-boot, and most other watchdogs having a timeout of one minutes
instead of one second like the 8xx, this fix should not have
negative impact on other targets.
Fixes: 29caf9305b ("cyclic: Use schedule() instead of WATCHDOG_RESET()")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Simon Glass <sjg@chromium.org>
This fixes CVE-2022-37434 [1] and bases on 2 commits from Mark
Adler's zlib master repo - the original fix of CVE bug [2] and
the fix for the fix [3].
[1]
https://github.com/advisories/GHSA-cfmr-vrgj-vqwv
[2]
eff308af42
[3]
1eb7682f84
Fixes: e89516f031 ("zlib: split up to match original source tree")
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
At present livetree can only be used for the control FDT. It is useful
to be able to use the ofnode API for other FDTs, e.g. those used by
the upcoming configuration editor.
We already have most of the support present, and tests can be marked with
the UT_TESTF_OTHER_FDT flag to use another FDT as a special case. But
with this change, the functionality becomes more generally available.
Plumb in the require support.
Signed-off-by: Simon Glass <sjg@chromium.org>
Ensure that the block of memory used by live tree is aligned according to
the default for structures. This ensures that the root node appears at
the start of the block, so it can be used with free(), rather than being
4 bytes later in some cases.
This corrects a rather obscure bug in unflatten_device_tree().
Fixes: 8b50d526ea ("dm: Add a function to create a 'live' device tree")
Signed-off-by: Simon Glass <sjg@chromium.org>
Debian's arm64 UEFI Secure Boot shim makes the EFI variable store run
out of space while mirroring its MOK database to variables. This can be
observed in QEMU like so:
$ tools/buildman/buildman -o build/qemu_arm64 --boards=qemu_arm64 -w
$ cd build/qemu_arm64
$ curl -L -o debian.iso \
https://cdimage.debian.org/debian-cd/current/arm64/iso-cd/debian-12.0.0-arm64-netinst.iso
$ qemu-system-aarch64 \
-nographic -bios u-boot.bin \
-machine virt -cpu cortex-a53 -m 1G -smp 2 \
-drive if=virtio,file=debian.iso,index=0,format=raw,readonly=on,media=cdrom
[...]
=> # interrupt autoboot
=> env set -e -bs -nv -rt -guid 605dab50-e046-4300-abb6-3dd810dd8b23 SHIM_VERBOSE 1
=> boot
[...]
mok.c:296:mirror_one_esl() SetVariable("MokListXRT43", ... varsz=0x4C) = Out of Resources
mok.c:452:mirror_mok_db() esd:0x7DB92D20 adj:0x30
Failed to set MokListXRT: Out of Resources
mok.c:767:mirror_one_mok_variable() mirror_mok_db("MokListXRT", datasz=17328) returned Out of Resources
mok.c:812:mirror_one_mok_variable() returning Out of Resources
Could not create MokListXRT: Out of Resources
[...]
Welcome to GRUB!
This would normally be fine as shim would continue to run grubaa64.efi,
but shim's error handling code for this case has a bug [1] that causes a
synchronous abort on at least chromebook_kevin (but apparently not on
QEMU arm64).
Double the default variable store size so the variables fit. There is a
note about this value matching PcdFlashNvStorageVariableSize when
EFI_MM_COMM_TEE is enabled, so keep the old default in that case.
[1] https://github.com/rhboot/shim/pull/577
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
The efi_var_mem_free() function calculates the available size for a new
EFI variable by subtracting the occupied buffer size and the overhead
for a new variable from the maximum buffer size set in Kconfig. This
is then returned as QueryVariableInfo()'s RemainingVariableStorageSize
output.
This can underflow as the calculation is done in and processed as
unsigned integer types. Check for underflow before doing the subtraction
and return zero if there's no space.
Fixes: f1f990a8c9 ("efi_loader: memory buffer for variables")
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Use a variable (MKIMAGE_SIGN_PASSWORD) like already done for RSA to
allow the signing process to run in batch.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Running the protocols selftest more than one times fails with
=> setenv efi_selftest 'manage protocols' && bootefi selftest
Testing EFI API implementation
Selected test: 'manage protocols'
Setting up 'manage protocols'
Setting up 'manage protocols' succeeded
Executing 'manage protocols'
Executing 'manage protocols' succeeded
Tearing down 'manage protocols'
Tearing down 'manage protocols' succeeded
Summary: 0 failures
=> bootefi selftest
Testing EFI API implementation
Selected test: 'manage protocols'
Setting up 'manage protocols'
lib/efi_selftest/efi_selftest_manageprotocols.c(88):
ERROR: InstallProtocolInterface failed
lib/efi_selftest/efi_selftest.c(89):
ERROR: Setting up 'manage protocols' failed
Tearing down 'manage protocols'
Tearing down 'manage protocols' succeeded
Summary: 1 failures
The reason is that we don't set the handles to NULL after deleting and
freeing them. As a result the subsequent protocol installation will try
to use an existing handle which we just removed that from our object list.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Instead of discovering the ID of the device and call two different
functions for a block device or a partition, we can rewrite
efi_disk_remove() and handle the minor differences between the two
variants internally. As a results we can simplify efi_disk_remove()
a lot and get rid of the extra efi_disk_delete_raw/blk calls.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
If a handle is not found, return 0 to let the device be removed.
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Running the controller selftest more than one times fails with
=> setenv efi_selftest 'controllers' && bootefi selftest
Testing EFI API implementation
Selected test: 'controllers'
Setting up 'controllers'
Setting up 'controllers' succeeded
Executing 'controllers'
Executing 'controllers' succeeded
Summary: 0 failures
=> bootefi selftest
Testing EFI API implementation
Selected test: 'controllers'
Setting up 'controllers'
lib/efi_selftest/efi_selftest_controllers.c(280):
ERROR: InstallProtocolInterface failed
lib/efi_selftest/efi_selftest.c(89):
ERROR: Setting up 'controllers' failed
Summary: 1 failures
There are multiple reason for this. We don't uninstall the binding
interface from the controller handle and we don't reset the handle
pointers either. So let's uninstall all the protocols properly and
reset the handles to NULL on setup().
While at it add a forgotten check when uninstalling protocols from the
handle_controller and make sure the number of child controllers is 0
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Test ReinstallProtocolInterface() more rigorously.
Replacing the sole installed protocol interface must not result in deleting
the handle and creating a new one.
Check which interface is actually installed before and after
ReinstallProtocolInterface().
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Just like fwu_plat_get_update_index, provide a default/weak
implementation of fwu_plat_get_bootidx. So that most platforms
wouldn't have to re-implement the likely case.
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
In the FWU Multi Bank Update feature, the information about the
updatable images is stored as part of the metadata, on a separate
region. Add a driver for reading from and writing to the metadata
when the updatable images and the metadata are stored on a raw
MTD region.
The code is divided into core under drivers/fwu-mdata/ and some helper
functions clubbed together under lib/fwu_updates/
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
The common code can now read, verify and fix meta-data copies
while exposing one consistent structure to users.
Only the .read_mdata() and .write_mdata() callbacks of fwu_mdata_ops
are needed. Get rid of .get_mdata() .update_mdata() .get_mdata_part_num()
.read_mdata_partition() and .write_mdata_partition() and also the
corresponding wrapper functions.
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Tested-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Instead of each i/f having to implement their own meta-data verification
and storage, move the logic in common code. This simplifies the i/f code
much simpler and compact.
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Tested-by: Sughosh Ganu <sughosh.ganu@linaro.org>
The FMP Payload Header which EDK II capsule generation scripts
insert has a firmware version.
This commit reads the lowest supported version stored in the
device tree, then check if the firmware version in FMP payload header
of the ongoing capsule is equal or greater than the
lowest supported version. If the firmware version is lower than
lowest supported version, capsule update will not be performed.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
This commit gets the lowest supported version from device tree,
then fills the lowest supported version in FMP->GetImageInfo().
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Current FMP->GetImageInfo() always return 0 for the firmware
version, user can not identify which firmware version is currently
running through the EFI interface.
This commit reads the "FmpStateXXXX" EFI variable, then fills the
firmware version in FMP->GetImageInfo().
Now FMP->GetImageInfo() and ESRT have the meaningful version number.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Firmware version management is not implemented in the current
FMP protocol.
EDK II reference implementation capsule generation script inserts
the FMP Payload Header right before the payload, FMP Payload Header
contains the firmware version and lowest supported version.
This commit utilizes the FMP Payload Header, reads the header and
stores the firmware version into "FmpStateXXXX" EFI non-volatile variable.
XXXX indicates the image index, since FMP protocol handles multiple
image indexes.
Note that lowest supported version included in the FMP Payload Header
is not used. If the platform uses file-based EFI variable storage,
it can be tampered. The file-based EFI variable storage is not the
right place to store the lowest supported version for anti-rollback
protection.
This change is compatible with the existing FMP implementation.
This change does not mandate the FMP Payload Header.
If no FMP Payload Header is found in the capsule file, fw_version,
lowest supported version, last attempt version and last attempt
status is 0 and this is the same behavior as existing FMP
implementation.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
The number of image array entries global variable is required
to support EFI capsule update. This information is exposed as a
num_image_type_guids variable, but this information
should be included in the efi_capsule_update_info structure.
This commit adds the num_images member in the
efi_capsule_update_info structure. All board files supporting
EFI capsule update are updated.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Check that LocateHandleBuffer() return EFI_NOT_FOUND when called with
ByRegisterNotify and all handles already have been retrieved.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
part_get_info() may return an error code. Check it.
Update function description of dp_part_node().
Addresses-Coverity-ID: 184067 ("Unchecked return value")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
These files should have both 'always' and 'targets' so that dependencies
are detected correctly.
When only 'always' is used, the target is built every time, although I am
not quite sure why.
Make sure each has both 'always' and 'targets' to avoid this problem.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present two acpi files are built every time since they use a version
number from version.h
This is not necessary. Make use of the same technique as for the version
string, so that they are build only when they change.
Signed-off-by: Simon Glass <sjg@chromium.org>
* When called from efi_dp_from_name() we miss to append the filename
for non-block devices.
* expand_media_path() could be simplified by using efi_dp_from_file to
prepend the device path of the boot device.
This can be avoided by passing a device path to efi_dp_from_file() instead
of a block device descriptor and a partition number.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
* Improve variable name usage: Use pos instead of buf to indicate the
current position in a buffer.
* Avoid double assignment in a single code line.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
efi_dp_from_name() has duplicate code to replace slash by backslash.
path_to_uefi() called by efi_dp_from_file() already does this.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
