summaryrefslogtreecommitdiff
path: root/target/s390x/sigp.c
diff options
context:
space:
mode:
authorDavid Hildenbrand <david@redhat.com>2017-09-28 22:36:56 +0200
committerCornelia Huck <cohuck@redhat.com>2017-10-20 13:32:10 +0200
commit3047f8b549a5af0027d7921ed9dbeba233895ab9 (patch)
tree2e000ed2093538c7b2f3f082585d7b849ccff807 /target/s390x/sigp.c
parent74b4c74d5efb0a489bdf0acc5b5d0197167e7649 (diff)
s390x/kvm: factor out actual handling of STOP interrupts
For KVM, the KVM module decides when a STOP can be performed (when the STOP interrupt can be processed). Factor it out so we can use it later for TCG. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20170928203708.9376-19-david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/sigp.c')
-rw-r--r--target/s390x/sigp.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/target/s390x/sigp.c b/target/s390x/sigp.c
index 4813123aad..9587c3d319 100644
--- a/target/s390x/sigp.c
+++ b/target/s390x/sigp.c
@@ -81,7 +81,7 @@ static void sigp_stop_and_store_status(CPUState *cs, run_on_cpu_data arg)
case CPU_STATE_OPERATING:
cpu->env.sigp_order = SIGP_STOP_STORE_STATUS;
cpu_inject_stop(cpu);
- /* store will be performed when handling the stop intercept */
+ /* store will be performed in do_stop_interrup() */
break;
case CPU_STATE_STOPPED:
/* already stopped, just store the status */
@@ -360,6 +360,19 @@ int s390_cpu_restart(S390CPU *cpu)
return 0;
}
+void do_stop_interrupt(CPUS390XState *env)
+{
+ S390CPU *cpu = s390_env_get_cpu(env);
+
+ if (s390_cpu_set_state(CPU_STATE_STOPPED, cpu) == 0) {
+ qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
+ }
+ if (cpu->env.sigp_order == SIGP_STOP_STORE_STATUS) {
+ s390_store_status(cpu, S390_STORE_STATUS_DEF_ADDR, true);
+ }
+ env->sigp_order = 0;
+}
+
void s390_init_sigp(void)
{
qemu_mutex_init(&qemu_sigp_mutex);