From: Leon Alrae <leon.alrae@imgtec.com>
Date: Mon, 16 Mar 2015 16:29:34 +0000 (+0000)
Subject: target-mips: save cpu state before calling MSA load and store helpers
X-Git-Tag: qemu-xen-4.7.0-rc1~394^2
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=0af7a37054310384e00209e0a43efe95b7c19ef0;p=qemu-xen.git

target-mips: save cpu state before calling MSA load and store helpers

PC needs to be saved if an exception can be generated by an helper.
This fixes a problem related to resuming the execution at unexpected address
after an exception (caused by MSA load/store instruction) has been serviced.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
---

diff --git a/target-mips/translate.c b/target-mips/translate.c
index a91e5037f5..fd063a2aae 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -18414,12 +18414,14 @@ static void gen_msa(CPUMIPSState *env, DisasContext *ctx)
             case OPC_LD_H:
             case OPC_LD_W:
             case OPC_LD_D:
+                save_cpu_state(ctx, 1);
                 gen_helper_msa_ld_df(cpu_env, tdf, twd, trs, ts10);
                 break;
             case OPC_ST_B:
             case OPC_ST_H:
             case OPC_ST_W:
             case OPC_ST_D:
+                save_cpu_state(ctx, 1);
                 gen_helper_msa_st_df(cpu_env, tdf, twd, trs, ts10);
                 break;
             }