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2025-07-26efi: Rename the lib/efi directorySimon Glass
This directory was created when U-Boot gained the ability to run as an EFI app in 2015. Since then the EFI-loader feature has been added. The code in lib/efi is not actually used by the loader, so the name is confusing. Rename the directory to efi_client to indicate that it includes files just for U-Boot being a client of EFI, i.e. the EFI app and stub. Signed-off-by: Simon Glass <[email protected]>
2024-09-12include: export uuid.hCaleb Connolly
Move this header to include/u-boot/ so that it can be used by external tools. Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Caleb Connolly <[email protected]>
2024-01-13efi: Avoid using dm_scan_other()Simon Glass
This function is defined by bootstd so using it precludes using that feature. Use the board_early_init_r() feature instead. Nove the affected code into a new file, so that it is clear that this relates to board init. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2023-12-21lib: Remove <common.h> inclusion from these filesTom Rini
After some header file cleanups to add missing include files, remove common.h from all files in the lib directory. This primarily means just dropping the line but in a few cases we need to add in other header files now. Reviewed-by: Simon Glass <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2023-12-05efi: Collect the ACPI tables in the appSimon Glass
Locate these so that they can be displayed using the 'acpi' command. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2022-04-29efi: fix devpath_is_partition()Heinrich Schuchardt
If the path consists only of an end node, it does not refer to a partition. Avoid returning a random value from the stack in this case. Signed-off-by: Heinrich Schuchardt <[email protected]>
2022-01-19doc: replace @return by Return:Heinrich Schuchardt
Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <[email protected]>
2022-01-15efi: Support the efi command in the appSimon Glass
At present the 'efi' command only works in the EFI payload. Update it to work in the app too, so the memory map can be examined. Signed-off-by: Simon Glass <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2022-01-15efi: Move exit_boot_services into a functionSimon Glass
At present this code is inline in the app and stub. But they do the same thing. The difference is that the stub does it immediately and the app doesn't want to do it until the end (when it boots a kernel) or not at all, if returning to UEFI. Move it into a function so it can be called as needed. Add a comment showing how to store the memory map so that it can be accessed within the app if needed, for debugging purposes only. The map can change without notice. Signed-off-by: Simon Glass <[email protected]>
2021-12-31efi: Show when allocated pages are usedSimon Glass
Add a message here so that both paths of memory allocation are reported. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2021-12-31efi: Check for failure when initing the appSimon Glass
The stub checks for failure with efi_init(). Add this for the app as well. It is unlikely that anything can be done, but we may as well stop. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2021-12-31efi: Share struct efi_priv between the app and stub codeSimon Glass
At present each of these has its own static variable and helper functions. Move them into a shared file. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2021-12-31efi: Locate all block devices in the appSimon Glass
When starting the app, locate all block devices and make them available to U-Boot. This allows listing partitions and accessing files in filesystems. EFI also has the concept of 'disks', meaning boot media. For now, this is not obviously useful in U-Boot, but add code to at least locate these. This can be expanded later as needed. We cannot use printf() in the early stub or app since it is not compiled in Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2021-11-07efi: Add a way to obtain boot services in the appSimon Glass
Add a function to return this information along with a stub for the efi_info_get() function, since calling it otherwise hangs U-Boot. Signed-off-by: Simon Glass <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2020-05-18common: Drop init.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <[email protected]>
2020-02-05dm: core: Create a new header file for 'compat' featuresSimon Glass
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <[email protected]>
2020-01-17common: Move reset_cpu() to the CPU headerSimon Glass
Move this function out of common.h and into a relevant header file. Signed-off-by: Simon Glass <[email protected]>
2018-11-14sysreset: Remove DM_FLAG_PRE_RELOC flag in various driversBin Meng
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be bound before relocation. However due to a bug in the DM core, the flag only takes effect when devices are statically declared via U_BOOT_DEVICE(). This bug has been fixed recently by commit "dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in lists_bind_fdt()", but with the fix, it has a side effect that all existing drivers that declared DM_FLAG_PRE_RELOC flag will be bound before relocation now. This may expose potential boot failure on some boards due to insufficient memory during the pre-relocation stage. To mitigate this potential impact, the following changes are implemented: - Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver only supports configuration from device tree (OF_CONTROL) - Keep DM_FLAG_PRE_RELOC flag in the driver only if the device is statically declared via U_BOOT_DEVICE() - Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for drivers that support both statically declared devices and configuration from device tree Signed-off-by: Bin Meng <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2018-07-20efi: app: Add a sysreset driverBin Meng
This adds the DM sysreset driver for EFI application support. Signed-off-by: Bin Meng <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2018-06-17x86: use EFI calling convention for efi_main on x86_64Ivan Gorinov
UEFI specifies the calling convention used in Microsoft compilers; first arguments of a function are passed in (%rcx, %rdx, %r8, %r9). All other compilers use System V ABI by default, passing first integer arguments of a function in (%rdi, %rsi, %rdx, %rcx, %r8, %r9). These ABI also specify different sets of registers that must be preserved across function calls (callee-saved). GCC allows using the Microsoft calling convention by adding the ms_abi attribute to a function declaration. Current EFI implementation in U-Boot specifies EFIAPI for efi_main() in the test apps but uses default calling convention in lib/efi. Save efi_main() arguments in the startup code on x86_64; use EFI calling convention for _relocate() on x86_64; consistently use EFI calling convention for efi_main() everywhere. Signed-off-by: Ivan Gorinov <[email protected]> Reviewed-by: Alexander Graf <[email protected]> Reviewed-by: Bin Meng <[email protected]> Tested-by: Bin Meng <[email protected]>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <[email protected]>
2017-07-27spl: make SPL and normal u-boot stage use independent SYS_MALLOC_F_LENAndy Yan
Some platforms have very limited SRAM to run SPL code, so there may not be the same amount space for a malloc pool before relocation in the SPL stage as the normal U-Boot stage. Make SPL and (the full) U-Boot stage use independent SYS_MALLOC_F_LEN, so the size of pre-relocation malloc pool can be configured memory space independently. Signed-off-by: Andy Yan <[email protected]> Reviewed-by: Tom Rini <[email protected]> Acked-by: Philipp Tomsich <[email protected]> Reviewed-by: Philipp Tomsich <[email protected]> [fixed up commit-message:] Signed-off-by: Philipp Tomsich <[email protected]>
2015-08-05efi: Add start-up library codeSimon Glass
When running as an EFI application, U-Boot must request memory from EFI, and provide access to the boot services U-Boot needs. Add library code to perform these tasks. This includes efi_main() which is the entry point from EFI. U-Boot is built as a shared library. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Bin Meng <[email protected]>