[Qemu-devel] [PATCH] s390x/tcg: initialize machine check queue

[Cornelia Huck <cohuck@redhat.com>]

Just as for external interrupts and I/O interrupts, we need to
initialize mchk_index during cpu reset.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---

Trying a device_add with a ccw device under tcg currently insta-crashes
qemu. Probably nobody ever tried the crw machine check support that I
hacked in...

Needs more work to avoid a guest kernel panic next; but let's pick the
low-hanging fruit first.

---
 target/s390x/cpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index 4e1823a3e0..3fdf9bae70 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -111,6 +111,7 @@ static void s390_cpu_initial_reset(CPUState *s)
     for (i = 0; i < ARRAY_SIZE(env->io_index); i++) {
         env->io_index[i] = -1;
     }
+    env->mchk_index = -1;
 
     /* tininess for underflow is detected before rounding */
     set_float_detect_tininess(float_tininess_before_rounding,
@@ -148,6 +149,7 @@ static void s390_cpu_full_reset(CPUState *s)
     for (i = 0; i < ARRAY_SIZE(env->io_index); i++) {
         env->io_index[i] = -1;
     }
+    env->mchk_index = -1;
 
     /* tininess for underflow is detected before rounding */
     set_float_detect_tininess(float_tininess_before_rounding,
-- 
2.13.6