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x86: zimage: Support booting Linux kernel from an EFI payload

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At present Linux kernel loaded from U-Boot as an EFI payload does
not boot. This fills in kernel's boot params structure with the
required critical EFI information like system table address and
memory map stuff so that kernel can obtain essential data like
runtime services and ACPI table to boot.

With this patch, now U-Boot as an EFI payload becomes much more
practical: it is another option of kernel bootloader, ie, can be
a replacement for grub.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng
2018-08-23 08:24:10 -07:00
parent cbe503fbc1
commit 1fdeacd32c
4 changed files with 45 additions and 0 deletions
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3
include/efi.h
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@@ -41,6 +41,9 @@
#define efi_va_end va_end
#endif /* __x86_64__ */
#define EFI32_LOADER_SIGNATURE "EL32"
#define EFI64_LOADER_SIGNATURE "EL64"
struct efi_device_path;
typedef struct {