[Xen-devel] [PATCH] multiboot2: clarify usage of the address tag

[Roger Pau Monne <roger.pau@xxxxxxxxxx>]

Add a note to spell out that if the address tag is not present the
file should be loaded using the elf header.

Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
Cc: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
---
 doc/multiboot.texi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/doc/multiboot.texi b/doc/multiboot.texi
index 2e2d7e74a..196f9c17a 100644
--- a/doc/multiboot.texi
+++ b/doc/multiboot.texi
@@ -509,6 +509,12 @@ assumes that no bss segment is present.
 
 @end table
 
+Note: This information does not need to be provided if the kernel
+image is in elf format, but it must be provided if the image is in
+a.out format or in some other format. Compliant boot loaders must be
+able to load images that are either in elf format or contain the
+address tag embedded in the Multiboot header.
+
 @subsection The entry address tag of Multiboot2 header
 
 @example
-- 
2.17.0


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