Heinrich Schuchardt b20bb09b21 efi_loader: restrict EFI_LOADER to armv7 and armv8 on ARM ...

fatload USB was reported to fail on the Sheevaplug. Debugging showed that
this was caused by an incorrect unaligned write to memory in
path_to_uefi().

UEFI on ARM requires that unaligned memory access is enabled.

* ARMv5 does not support unaligned access at all.
* ARMv6 supports unaligned access when we clear the A flag and set the
  U flag.
* On ARMv7 unaligned access is possible when clearing the aligned flag,
  which we do in function allow_unaligned() (arch/arm/cpu/armv7/sctlr.S).
  For none of the other cpus in arch/arm/cpu/ we have implemented a
  similar function.
* ARMv8 allows unaligned access.

Let EFI_LOADER on ARM depend on SYS_CPU=armv7 or SYS_CPU=armv8.

Once we have implemented allow_unaligned() for other ARM CPUs we can add
these to Kconfig.

Reported-by: Gray Remlin <gryrmln@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

2019-11-19 12:10:22 +01:00

..

.gitignore

lib: gitignore *.elf and *.so generated by efi_loader

2017-01-09 10:30:24 -05:00

efi_acpi.c

efi_loader: Install ACPI configuration tables

2018-07-02 09:23:28 +08:00

efi_bootmgr.c

efi_loader: function comments efi_bootmgr.c

2019-07-16 22:17:20 +00:00

efi_boottime.c

efi_loader: incorrect return value form DisconnectController

2019-09-20 20:09:18 +02:00

efi_console.c

doc: UEFI API documentation

2019-09-05 23:18:52 +02:00

efi_device_path_to_text.c

efi: device path for nvme

2019-10-06 16:02:37 +02:00

efi_device_path_utilities.c

SPDX: Convert a few files that were missed before

2018-05-10 20:38:35 -04:00

efi_device_path.c

efi_loader: remove unused function efi_dp_from_dev()

2019-11-19 12:10:22 +01:00

efi_disk.c

efi_loader: disk: install file system protocol to a whole disk

2019-11-12 23:13:54 +01:00

efi_file.c

efi_loader: parameter checks EFI_FILE_PROTOCOL.SetInfo()

2019-09-11 21:51:38 +02:00

efi_freestanding.c

efi_loader: provide freestanding library

2019-02-13 09:40:06 +01:00

efi_gop.c

doc: UEFI API documentation

2019-09-05 23:18:52 +02:00

efi_hii_config.c

efi_loader: debug output for HII protocols

2019-02-13 09:40:06 +01:00

efi_hii.c

efi_loader: ListPackageLists() return EFI_NOT_FOUND

2019-06-20 22:26:19 +00:00

efi_image_loader.c

efi_loader: unload applications upon Exit()

2019-05-07 21:10:03 +02:00

efi_memory.c

efi_loader: call add_u_boot_and_runtime() on sandbox

2019-11-12 23:13:54 +01:00

efi_net.c

doc: UEFI API documentation

2019-09-05 23:18:52 +02:00

efi_root_node.c

efi_loader: implement deprecated Unicode collation protocol

2019-05-19 08:10:10 +02:00

efi_runtime.c

efi_loader: do not call efi_runtime_detach twice

2019-08-15 20:33:10 +02:00

efi_setup.c

efi_loader: initialization of variable services

2019-07-06 21:25:32 +02:00

efi_smbios.c

sandbox: smbios: Update to support sandbox

2018-12-02 21:59:37 +01:00

efi_unicode_collation.c

efi_loader: description efi_stri_coll()

2019-09-23 22:53:25 +02:00

efi_variable.c

efi_loader: correct includes in efi_variable.c

2019-10-30 17:49:41 +01:00

efi_watchdog.c

SPDX: Convert a few files that were missed before

2018-05-10 20:38:35 -04:00

helloworld.c

efi_loader: consistent naming of protocol GUIDs

2019-04-23 00:37:27 +02:00

Kconfig

efi_loader: restrict EFI_LOADER to armv7 and armv8 on ARM

2019-11-19 12:10:22 +01:00

Makefile

efi_loader: support building UEFI binaries on sandbox

2019-11-12 23:13:54 +01:00