From 13529cc74ba53fb032172a58dfb04ea4d6e64891 Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Fri, 21 Sep 2012 04:18:07 +0400
Subject: [PATCH] tcg/README: document tcg_gen_goto_tb restrictions
See
http://lists.nongnu.org/archive/html/qemu-devel/2012-09/msg03196.html
for the whole story.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
tcg/README | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tcg/README b/tcg/README
index d03ae05..33783ee 100644
--- a/tcg/README
+++ b/tcg/README
@@ -392,7 +392,8 @@ Exit the current TB and return the value t0 (word type).
Exit the current TB and jump to the TB index 'index' (constant) if the
current TB was linked to this TB. Otherwise execute the next
-instructions.
+instructions. Only indices 0 and 1 are valid and tcg_gen_goto_tb may be issued
+at most once with each slot index per TB.
* qemu_ld8u t0, t1, flags
qemu_ld8s t0, t1, flags