[Xen-devel] [MULTIBOOT2 DOC PATCH v2 06/11] multiboot2: Add description of EFI image handle tags

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
---
 doc/multiboot.texi |   28 ++++++++++++++++++++++++++++
 doc/multiboot2.h   |   16 ++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/doc/multiboot.texi b/doc/multiboot.texi
index cc1edab..dca3e62 100644
--- a/doc/multiboot.texi
+++ b/doc/multiboot.texi
@@ -1288,6 +1288,34 @@ u32     | size = 8          |
 
 This tag indicates ExitBootServices wasn't called
 
+@subsection EFI 32-bit image handle pointer
+@example
+@group
+        +-------------------+
+u32     | type = 19         |
+u32     | size = 12         |
+u32     | pointer           |
+        +-------------------+
+@end group
+@end example
+
+This tag contains pointer to EFI i386 image handle.
+Usually it is boot loader image handle.
+
+@subsection EFI 64-bit image handle pointer
+@example
+@group
+        +-------------------+
+u32     | type = 20         |
+u32     | size = 16         |
+u64     | pointer           |
+        +-------------------+
+@end group
+@end example
+
+This tag contains pointer to EFI amd64 image handle.
+Usually it is boot loader image handle.
+
 @node Examples
 @chapter Examples
 
diff --git a/doc/multiboot2.h b/doc/multiboot2.h
index 240400d..b85cb13 100644
--- a/doc/multiboot2.h
+++ b/doc/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
@@ -372,6 +374,20 @@ 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


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel