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efi_loader: Make HII a config option

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Heinrich ran into issues with HII and iPXE which lead to #SErrors on
his Odroid-C2 system. We definitely do not want to regress just yet,
so let's not expose the HII protocols by default.

Instead, let's make it a config option that people can play with
This way, we can stabilize the code in tree without breaking any
users.

Once someone figures out, why this breaks iPXE (probably a NULL
dereference), we can enable it by default.

Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

---

v1 -> v2:

  - Remove HII selftest as well

v2 -> v3:

  - Make config option
This commit is contained in:
Alexander Graf 2019-02-11 15:24:00 +01:00
parent 2f8ab1218f
commit 5fbb28958b
3 changed files with 18 additions and 1 deletions
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15
lib/efi_loader/Kconfig
View File

@ -34,3 +34,18 @@ config EFI_LOADER_BOUNCE_BUFFER
Some hardware does not support DMA to full 64bit addresses. For this
hardware we can create a bounce buffer so that payloads don't have to
worry about platform details.
config EFI_LOADER_HII
bool "Expose HII protocols to EFI applications"
depends on EFI_LOADER
default n
help
The Human Interface Infrastructure is a complicated framework that
allows UEFI applications to draw fancy menus and hook strings using
a translation framework.
U-Boot implements enough of its features to be able to run the UEFI
Shell, but not more than that. The code is experimental still, so
beware that your system might break with HII enabled.
If unsure, say n.

2
lib/efi_loader/efi_boottime.c
View File

@ -1558,6 +1558,7 @@ efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
if (ret != EFI_SUCCESS)
goto failure;
#if CONFIG_IS_ENABLED(EFI_LOADER_HII)
ret = efi_add_protocol(&obj->header,
&efi_guid_hii_string_protocol,
(void *)&efi_hii_string);
@ -1575,6 +1576,7 @@ efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
(void *)&efi_hii_config_routing);
if (ret != EFI_SUCCESS)
goto failure;
#endif
return ret;
failure:

2
lib/efi_selftest/Makefile
View File

@ -25,7 +25,6 @@ efi_selftest_exception.o \
efi_selftest_exitbootservices.o \
efi_selftest_fdt.o \
efi_selftest_gop.o \
efi_selftest_hii.o \
efi_selftest_loaded_image.o \
efi_selftest_manageprotocols.o \
efi_selftest_memory.o \
@ -41,6 +40,7 @@ efi_selftest_variables.o \
efi_selftest_watchdog.o
obj-$(CONFIG_CPU_V7) += efi_selftest_unaligned.o
obj-$(CONFIG_EFI_LOADER_HII) += efi_selftest_hii.o
ifeq ($(CONFIG_BLK)$(CONFIG_PARTITIONS),yy)
obj-y += efi_selftest_block_device.o