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hv: add Kconfig parameter to define the Service VM EFI bootloader

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Add a Kconfig parameter called UEFI_OS_LOADER_NAME to hold the Service VM EFI
bootloader to be run by the ACRN hypervisor. A new string manipulation function
to convert from (char *) to (CHAR16 *) has been added to facilitate the
implementation.

The default value is set to systemd-boot (bootloaderx64.efi)

Tracked-On: #2793
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
This commit is contained in:
Geoffroy Van Cutsem
2019-11-07 09:02:02 +01:00
committed by wenlingz
parent 058b03c3a7
commit 51a43dab79
3 changed files with 24 additions and 2 deletions
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3
misc/efi-stub/boot.c
View File

@@ -394,7 +394,6 @@ fail:
}
#define DEFAULT_UEFI_OS_LOADER_NAME L"\\EFI\\org.clearlinux\\bootloaderx64.efi"
/**
* efi_main - The entry point for the OS loader image.
* @image: firmware-allocated handle that identifies the image
@@ -460,7 +459,7 @@ efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *_table)
* bootloader name to be used. Fall back to the default bootloader
* as specified in config.h
*/
bootloader_name = DEFAULT_UEFI_OS_LOADER_NAME;
bootloader_name = ch8_2_ch16(CONFIG_UEFI_OS_LOADER_NAME, strlen(CONFIG_UEFI_OS_LOADER_NAME));
}
section = ".hv";

15
misc/efi-stub/stdlib.h
View File

@@ -108,4 +108,19 @@ static inline char *ch16_2_ch8(CHAR16 *str16, UINTN len)
return str8;
}
static inline CHAR16 *ch8_2_ch16(char *str8, UINTN len)
{
UINTN i;
CHAR16 *str16;
str16 = AllocatePool((len + 1) * sizeof(CHAR16));
for (i = 0; i < len; i++)
str16[i] = str8[i];
str16[len] = 0;
return str16;
}
#endif /* __STDLIB_H__ */