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Wire up disabled wait a panicked event on s390

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On s390 the disabled wait state indicates a state of attention.
For example Linux uses that state after a panic. Lets
put the system into panicked state.

An alternative implementation would be to state
disabled-wait <address> instead of pause in the action field.
(e.g. z/OS, z/VM and other classic OSes use the address of the
disabled wait to indicate an error code).

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 6cf41156322e27e81a727b69f03728dbc225d5bb.1366945969.git.hutao@cn.fujitsu.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Christian Borntraeger 2013-04-26 11:24:47 +08:00 committed by Anthony Liguori
parent 3ab135f346
commit 08eb8c85e3
1 changed files with 14 additions and 3 deletions
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17
target-s390x/kvm.c
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@ -34,6 +34,8 @@
#include "sysemu/kvm.h"
#include "cpu.h"
#include "sysemu/device_tree.h"
#include "qapi/qmp/qjson.h"
#include "monitor/monitor.h"
/* #define DEBUG_KVM */
@ -779,9 +781,18 @@ static int handle_intercept(S390CPU *cpu)
r = handle_instruction(cpu, run);
break;
case ICPT_WAITPSW:
if (s390_del_running_cpu(cpu) == 0 &&
is_special_wait_psw(cs)) {
qemu_system_shutdown_request();
/* disabled wait, since enabled wait is handled in kernel */
if (s390_del_running_cpu(cpu) == 0) {
if (is_special_wait_psw(cs)) {
qemu_system_shutdown_request();
} else {
QObject *data;
data = qobject_from_jsonf("{ 'action': %s }", "pause");
monitor_protocol_event(QEVENT_GUEST_PANICKED, data);
qobject_decref(data);
vm_stop(RUN_STATE_GUEST_PANICKED);
}
}
r = EXCP_HALTED;
break;