[Qemu-devel] [PATCH 1/3] mips: Break TBs after mfc0_count

[edgar . iglesias]

From: Edgar E. Iglesias <address@hidden>

Break the TB after reading the count register. This makes it
possible to take timer interrupts immediately after a read of
a possibly expired timer.

Signed-off-by: Edgar E. Iglesias <address@hidden>
---
 target-mips/translate.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/target-mips/translate.c b/target-mips/translate.c
index cce77be..313cc29 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -3410,8 +3410,10 @@ static void gen_mfc0 (CPUState *env, DisasContext *ctx, 
TCGv arg, int reg, int s
             gen_helper_mfc0_count(arg);
             if (use_icount) {
                 gen_io_end();
-                ctx->bstate = BS_STOP;
             }
+            /* Break the TB to be able to take timer interrupts immediately
+               after reading count.  */
+            ctx->bstate = BS_STOP;
             rn = "Count";
             break;
         /* 6,7 are implementation dependent */
-- 
1.7.2.2