[PATCH] qemu: document "boot" option for "drive" flag

[Carlo Marcelo Arenas Belon <carenas@sajinet.com.pe>]

complement 982e9b725e32f58158b6b9968f04e3377f52e63 with some basic
documentation, extracted from the commit message.

Signed-off-by: Carlo Marcelo Arenas Belon <carenas@sajinet.com.pe>
---
 qemu/qemu-doc.texi |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/qemu/qemu-doc.texi b/qemu/qemu-doc.texi
index 7a24676..fcb220f 100644
--- a/qemu/qemu-doc.texi
+++ b/qemu/qemu-doc.texi
@@ -266,6 +266,8 @@ These options have the same definition as they have in @option{-hdachs}.
 Specify which disk @var{format} will be used rather than detecting
 the format.  Can be used to specifiy format=raw to avoid interpreting
 an untrusted format header.
+@item boot=@var{boot}
+@var{boot} if "on" allows to enable extboot for a given drive so it can be used as a boot drive.
 @end table
 
 Instead of @option{-cdrom} you can use:
@@ -297,6 +299,12 @@ You can connect a SCSI disk with unit ID 6 on the bus #0:
 qemu -drive file=file,if=scsi,bus=0,unit=6
 @end example
 
+To boot from a SCSI disk, one would use:
+
+@example
+qemu -drive file=file,if=scsi,boot=on
+@end example
+
 Instead of @option{-fda}, @option{-fdb}, you can use:
 @example
 qemu -drive file=file,index=0,if=floppy
-- 
1.5.3.7