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[PATCH 5/5] multiboot2: Add tags used to pass ImageHandle to loaded imag
From: |
Daniel Kiper |
Subject: |
[PATCH 5/5] multiboot2: Add tags used to pass ImageHandle to loaded image |
Date: |
Fri, 30 Jan 2015 18:59:28 +0100 |
Add tags used to pass ImageHandle to loaded image. It is used
by at least ExitBootServices() function.
Signed-off-by: Daniel Kiper <address@hidden>
---
grub-core/loader/multiboot_mbi2.c | 36 +++++++++++++++++++++++++++++++-----
include/multiboot2.h | 16 ++++++++++++++++
2 files changed, 47 insertions(+), 5 deletions(-)
diff --git a/grub-core/loader/multiboot_mbi2.c
b/grub-core/loader/multiboot_mbi2.c
index 8d66e3f..865267c 100644
--- a/grub-core/loader/multiboot_mbi2.c
+++ b/grub-core/loader/multiboot_mbi2.c
@@ -172,6 +172,8 @@ grub_multiboot_load (grub_file_t file, const char *filename)
case MULTIBOOT_TAG_TYPE_NETWORK:
case MULTIBOOT_TAG_TYPE_EFI_MMAP:
case MULTIBOOT_TAG_TYPE_EFI_BS:
+ case MULTIBOOT_TAG_TYPE_EFI32_IH:
+ case MULTIBOOT_TAG_TYPE_EFI64_IH:
break;
default:
@@ -906,11 +908,35 @@ grub_multiboot_make_mbi (grub_uint32_t *target)
if (keep_bs)
{
- struct multiboot_tag *tag = (struct multiboot_tag *) ptrorig;
- tag->type = MULTIBOOT_TAG_TYPE_EFI_BS;
- tag->size = sizeof (struct multiboot_tag);
- ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
- / sizeof (grub_properly_aligned_t);
+ {
+ struct multiboot_tag *tag = (struct multiboot_tag *) ptrorig;
+ tag->type = MULTIBOOT_TAG_TYPE_EFI_BS;
+ tag->size = sizeof (struct multiboot_tag);
+ ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
+ / sizeof (grub_properly_aligned_t);
+ }
+
+#ifdef __x86_64__
+ {
+ struct multiboot_tag_efi64_ih *tag = (struct multiboot_tag_efi64_ih *)
ptrorig;
+ tag->type = MULTIBOOT_TAG_TYPE_EFI64_IH;
+ tag->size = sizeof (*tag);
+ tag->pointer = (grub_addr_t) grub_efi_image_handle;
+ ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
+ / sizeof (grub_properly_aligned_t);
+ }
+#endif
+
+#ifdef __i386__
+ {
+ struct multiboot_tag_efi32_ih *tag = (struct multiboot_tag_efi32_ih *)
ptrorig;
+ tag->type = MULTIBOOT_TAG_TYPE_EFI32_IH;
+ tag->size = sizeof (*tag);
+ tag->pointer = (grub_addr_t) grub_efi_image_handle;
+ ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
+ / sizeof (grub_properly_aligned_t);
+ }
+#endif
}
#endif
diff --git a/include/multiboot2.h b/include/multiboot2.h
index 75cc99b..36372f4 100644
--- a/include/multiboot2.h
+++ b/include/multiboot2.h
@@ -60,6 +60,8 @@
#define MULTIBOOT_TAG_TYPE_NETWORK 16
#define MULTIBOOT_TAG_TYPE_EFI_MMAP 17
#define MULTIBOOT_TAG_TYPE_EFI_BS 18
+#define MULTIBOOT_TAG_TYPE_EFI32_IH 19
+#define MULTIBOOT_TAG_TYPE_EFI64_IH 20
#define MULTIBOOT_HEADER_TAG_END 0
#define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1
@@ -382,6 +384,20 @@ struct multiboot_tag_efi_mmap
multiboot_uint8_t efi_mmap[0];
};
+struct multiboot_tag_efi32_ih
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+ multiboot_uint32_t pointer;
+};
+
+struct multiboot_tag_efi64_ih
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+ multiboot_uint64_t pointer;
+};
+
#endif /* ! ASM_FILE */
#endif /* ! MULTIBOOT_HEADER */
--
1.7.10.4