It is useful to have a basic sanity check for EFI loader support. Add a
'bootefi hello' command which loads HelloWord.efi and runs it under U-Boot.
Signed-off-by: Simon Glass <s...@chromium.org>
---
arch/arm/lib/HelloWorld32.efi | Bin 0 -> 11712 bytes
arch/arm/lib/Makefile | 6 ++++++
cmd/Kconfig | 10 ++++++++++
cmd/bootefi.c | 26 ++++++++++++++++++++------
include/asm-generic/sections.h | 2 ++
scripts/Makefile.lib | 19 +++++++++++++++++++
6 files changed, 57 insertions(+), 6 deletions(-)
create mode 100644 arch/arm/lib/HelloWorld32.efi
diff --git a/arch/arm/lib/HelloWorld32.efi b/arch/arm/lib/HelloWorld32.efi
new file mode 100644
index
0000000000000000000000000000000000000000..7708451c04a99752ed468842090a9b3f3506090e
GIT binary patch
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HcmV?d00001
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index a8d1557..0f3ea0c 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -29,6 +29,12 @@ obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-$(CONFIG_CMD_BOOTM) += zimage.o
obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
+ifdef CONFIG_ARM64
+# This option does not work for arm64, as there is no binary.
+obj-$(CONFIG_CMD_BOOTEFI_HELLO) += HelloWorld64.o
+else
+obj-$(CONFIG_CMD_BOOTEFI_HELLO) += HelloWorld32.o
+endif
obj-$(CONFIG_USE_ARCH_MEMSET) += memset.o
obj-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
else
diff --git a/cmd/Kconfig b/cmd/Kconfig
index d69b817..8df80b6 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -172,6 +172,16 @@ config CMD_BOOTEFI
help
Boot an EFI image from memory.
+config CMD_BOOTEFI_HELLO
+ bool "Allow booting a standard EFI hello word for testing"
+ depends on CMD_BOOTEFI
+ default y if CMD_BOOTEFI && !ARM64
+ help
+ This adds a standard EFI hello world application to U-Boot so that
+ it can be used with the 'bootefi hello' command. This is useful
+ for testing that EFI is woring at a basic level, and for brining
+ up EFI support on a new architecture.
+
config CMD_ELF
bool "bootelf, bootvx"
default y
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index 0536b63..ecf9968 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -229,13 +229,22 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int
argc, char * const argv[])
if (argc < 2)
return 1;
- saddr = argv[1];
+#ifdef CONFIG_CMD_BOOTEFI_HELLO
+ if (!strcmp(argv[1], "hello")) {
+ addr = CONFIG_SYS_LOAD_ADDR;
+ memcpy((char *)addr, __efi_hello_world_begin,
+ __efi_hello_world_end - __efi_hello_world_begin);
+ } else
+#endif
+ {
+ saddr = argv[1];
- addr = simple_strtoul(saddr, NULL, 16);
+ addr = simple_strtoul(saddr, NULL, 16);
- if (argc > 2) {
- sfdt = argv[2];
- fdt_addr = simple_strtoul(sfdt, NULL, 16);
+ if (argc > 2) {
+ sfdt = argv[2];
+ fdt_addr = simple_strtoul(sfdt, NULL, 16);
+ }
}
printf("## Starting EFI application at 0x%08lx ...\n", addr);
@@ -253,7 +262,12 @@ static char bootefi_help_text[] =
"<image address> [fdt address]\n"
" - boot EFI payload stored at address <image address>.\n"
" If specified, the device tree located at <fdt address> gets\n"
- " exposed as EFI configuration table.\n";
+ " exposed as EFI configuration table.\n"
+#ifdef CONFIG_CMD_BOOTEFI_HELLO
+ "hello\n"
+ " - boot a sample Hello Word application stored within U-Boot"
+#endif
+ ;
#endif
U_BOOT_CMD(
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 328bc62..54ccac9 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -22,6 +22,8 @@ extern char __kprobes_text_start[], __kprobes_text_end[];
extern char __entry_text_start[], __entry_text_end[];
extern char __initdata_begin[], __initdata_end[];
extern char __start_rodata[], __end_rodata[];
+extern char __efi_hello_world_begin[];
+extern char __efi_hello_world_end[];
/* Start and end of .ctors section - used for constructor calls. */
extern char __ctors_start[], __ctors_end[];
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index e720562..07469f0 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -321,6 +321,25 @@ cmd_S_ttf= \
$(obj)/%.S: $(src)/%.ttf
$(call cmd,S_ttf)
+# EFI Hello World application
+# ---------------------------------------------------------------------------
+
+# Generate an assembly file to wrap the EFI app
+cmd_S_efi= \
+( \
+ echo '.section .rodata.efi.init,"a"'; \
+ echo '.balign 16'; \
+ echo '.global __efi_hello_world_begin'; \
+ echo '__efi_hello_world_begin:'; \
+ echo '.incbin "$<" '; \
+ echo '__efi_hello_world_end:'; \
+ echo '.global __efi_hello_world_end'; \
+ echo '.balign 16'; \
+) > $@
+
+$(obj)/%.S: $(src)/%.efi
+ $(call cmd,S_efi)
+
# ACPI
# ---------------------------------------------------------------------------
quiet_cmd_acpi_c_asl= ASL $<
--
2.8.0.rc3.226.g39d4020
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