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>
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>
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>
* 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>
According to our coding style guide #ifdef should be avoided.
Use IS_ENABLED() instead.
Sort string comparisons alphabetically.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Executing an EFI binary fails for files loaded via semihosting.
Construct a dummy device path for EFI binaries loaded via semihosting.
A future complete solution may include the creation of a handle with a
simple file system protocol.
Reported-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Symbol CONFIG_EFI_SETUP_EARLY does not exist anymore.
CONFIG_FWU_MULTI_BANK_UPDATE without CONFIG_FWU_MDATA results in
lib/fwu_updates/fwu.c:49: undefined reference to `fwu_get_mdata'
Fixes: 8679405241 ("FWU: Add support for the FWU Multi Bank Update feature")
Fixes: 023d9c9393 ("efi_loader: remove CONFIG_EFI_SETUP_EARLY")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Sughosh Ganu <sughosh.ganu@linaro.org>
This is useful for other features. Move the function into library code
so it can be used outside just the 'acpi' command.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
We have several Kconfig options for ACPI, but all relate to specific
functions, such as generating tables and AML code.
Add a new option which controls including basic ACPI library code,
including the lib/acpi directory. This will allow us to add functions
which are available even if table generation is not supported.
Adjust the command to avoid a build error when ACPIGEN is not enabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Please pull the second part of the sunxi pull request for this cycle.
Another bunch of patches that replace old-school U-Boot hacks with
proper DM based code, this time for the raw NAND flash driver, and the
USB PHY VBUS detection code. Plus two smaller patches that were sitting
in my inbox for a while.
Gitlab CI passed. In lack of some supported board with NAND flash I
couldn't really test this part, but apparently this was tested by the
reviewer. I briefly ran the branch on some boards with USB-OTG, and
this still worked.
As a first step toward converting this driver to the driver model, use
the ofnode abstraction to replace direct references to the FDT blob.
Using ofnode_read_u32_index removes an extra pair of loops and makes the
allwinner,rb property optional, matching the devicetree binding.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
HandleProtocol() is deprecated and leaves an OpenedProtocolInformation
behind. Use OpenProtocol(GET_PROTOCOL) instead.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
HandleProtocol() is deprecated and leaves an OpenedProtocolInformation
behind. Use OpenProtocol(GET_PROTOCOL) instead.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
When a case statement intentionally falls through we should add a comment.
Cf. -Wimplicit-fallthrough
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Remove test on CONFIG_LMB_MEMORY_REGIONS introduced by commit
7c1860fce4 ("lmb: Fix lmb property's defination under struct lmb").
This code in lmb_init() is strange, because if CONFIG_LMB_USE_MAX_REGIONS
and CONFIG_LMB_MEMORY_REGIONS are not defined, the implicit #else is empty
and the required initialization is not done:
lmb->memory.max = ?
lmb->reserved.max = ?
But this setting is not possible:
- CONFIG_LMB_USE_MAX_REGIONS not defined
- CONFIG_LMB_MEMORY_REGIONS not defined
because CONFIG_LMB_MEMORY_REGIONS and CONFIG_LMB_RESERVED_REGIONS are
defined as soon as the CONFIG_LMB_USE_MAX_REGIONS is not defined.
This patch removes this impossible case #elif and I add some
explanation in lmb.h to explain why in the struct lmb {} the lmb
property is defined if CONFIG_LMB_MEMORY_REGIONS is NOT defined.
This patch also removes CONFIG_LMB_XXX dependency on CONFIG_LMB as these
defines are used in API file lmb.h and not only in library file.
Fixes: 5e2548c1d6 ("lmb: Fix LMB_MEMORY_REGIONS flag usage")
Reported-by: Mark Millard <marklmi@yahoo.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Create a distinct EFI device path for each blkmap device.
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Assigning the value of a variable to itself should be avoided.
Addresses-Coverity-ID: 451089 ("Evaluation order violation")
Fixes: 180b7118be ("efi_loader: fix device-path for USB devices")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
We use short device-paths in boot options so that a file on a block device
can be found independent of the port into which the device is plugged.
Usb() device-path nodes only contain port and interface information and
therefore cannot identify a block device.
UsbWwi() device-path nodes contain the serial number of USB devices.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
These are currently only available when running with EFI_LOADER.
Expand this to include the app and payload, since it is useful to be
able to decode things there.
Signed-off-by: Simon Glass <sjg@chromium.org>
Provide information about the GUIDs supplied by QEMU, so far as it is
known.
These values are used in the 'efi table' command as well as the printf
format string %sU
Signed-off-by: Simon Glass <sjg@chromium.org>
The incumbent function efi_alloc() is unused.
Replace dp_alloc() by a new function efi_alloc() that we can use more
widely.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
EFI device paths for block devices must be unique. If a non-unique device
path is discovered, probing of the block device fails.
Currently we use UsbClass() device path nodes. As multiple devices may
have the same vendor and product id these are non-unique. Instead we
should use Usb() device path nodes. They include the USB port on the
parent hub. Hence they are unique.
A USB storage device may contain multiple logical units. These can be
modeled as Ctrl() nodes.
Reported-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
* Add the definitions for Ctrl() device path nodes.
* Implement Ctrl() nodes in the device path to text protocol.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
EFI device paths for block devices must be unique. If a non-unique device
path is discovered, probing of the block device fails.
Currently we use UsbClass() device path nodes. As multiple devices may
have the same vendor and product id these are non-unique. Instead we
should use Usb() device path nodes. They include the USB port on the
parent hub. Hence they are unique.
A USB storage device may contain multiple logical units. These can be
modeled as Ctrl() nodes.
Reported-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
* Add the definitions for Ctrl() device path nodes.
* Implement Ctrl() nodes in the device path to text protocol.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
With clang-15 we now will get warnings such as:
warning: a function declaration without a prototype is deprecated in all
versions of C [-Wstrict-prototypes]
And it is easy enough to address this warning here, even if we would
like to stay in sync more with upstream as it's a single location.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
With clang-15 we now will get warnings such as:
warning: a function declaration without a prototype is deprecated in all
versions of C [-Wstrict-prototypes]
And it is easy enough to address this warning here, as we aren't
concerned with re-syncing with an upstream.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
To make sure the panic and the reset messages will go out, console flush() should be used.
Sleep periods do not work in early u-boot phase when timer driver is not initialized yet.
Reference: https://lists.denx.de/pipermail/u-boot/2023-March/512233.html
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
