From: Alex Zuepke <azu@sysgo.de>
Date: Fri, 4 Dec 2015 15:01:02 +0000 (+0100)
Subject: sparc: allow CASA with ASI 0xa from user space
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=bd4e097a8e30bb63ed7f46553b13f60809c30ac3;p=qemu.git

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>
---

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