[Qemu-devel] [PATCH] sparc: allow CASA with ASI 0xa from user space

[Alex Zuepke]

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 <address@hidden>
---
 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 41a3319..63440dd 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
-- 
1.9.1