From bd4e097a8e30bb63ed7f46553b13f60809c30ac3 Mon Sep 17 00:00:00 2001
From: Alex Zuepke <azu@sysgo.de>
Date: Fri, 4 Dec 2015 16:01:02 +0100
Subject: [PATCH] sparc: allow CASA with ASI 0xa from user space
LEON3 allows the CASA instruction to be used from user space
if the ASI is set to 0xa (user data).
Signed-off-by: Alex Zuepke <azu@sysgo.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target-sparc/translate.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index 41a33193d8..63440dd792 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -5097,7 +5097,8 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
if (IS_IMM) {
goto illegal_insn;
}
- if (!supervisor(dc)) {
+ /* LEON3 allows CASA from user space with ASI 0xa */
+ if ((GET_FIELD(insn, 19, 26) != 0xa) && !supervisor(dc)) {
goto priv_insn;
}
#endif