From eca3ed0343ba413937f34ad4f8c4822dc82924e5 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger <borntraeger@de.ibm.com> Date: Sun, 22 Apr 2012 23:52:25 +0000 Subject: [PATCH] S390: dont call system_shutdown on disabled wait A disabled wait usually indicates a guest problem. Dont shutdown the guest to allow guest dumping. Have some special cases, e.g. a quiesce disabled wait. In that case we want to shutdown. Long term solution might be a crashed/panic indication. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de> --- target-s390x/kvm.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index 956730d638..90aad61eb0 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -407,6 +407,12 @@ static int handle_instruction(CPUS390XState *env, struct kvm_run *run) return 0; } +static bool is_special_wait_psw(CPUS390XState *env) +{ + /* signal quiesce */ + return env->kvm_run->psw_addr == 0xfffUL; +} + static int handle_intercept(CPUS390XState *env) { struct kvm_run *run = env->kvm_run; @@ -420,6 +426,12 @@ static int handle_intercept(CPUS390XState *env) r = handle_instruction(env, run); break; case ICPT_WAITPSW: + if (s390_del_running_cpu(env) == 0 && + is_special_wait_psw(env)) { + qemu_system_shutdown_request(); + } + r = EXCP_HALTED; + break; case ICPT_CPU_STOP: if (s390_del_running_cpu(env) == 0) { qemu_system_shutdown_request();