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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2015-07-21 13:47:32 +0200 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2015-10-21 12:21:30 +0200 |
| commit | db3b2566e0fb45e2901b6f9b842d91db6963915d (patch) | |
| tree | 758906db40e0a59d2131e8cd432fdb6c2ba0d619 /hw/s390x/s390-virtio.c | |
| parent | feacc6c2c8fff037f67a89402b29923251833425 (diff) | |
| download | qemu-db3b2566e0fb45e2901b6f9b842d91db6963915d.tar.gz qemu-db3b2566e0fb45e2901b6f9b842d91db6963915d.tar.bz2 qemu-db3b2566e0fb45e2901b6f9b842d91db6963915d.zip | |
s390x: machine reset function with new ipl cpu handling
Current implementation depends on the order of resets getting triggered.
If a cpu reset is triggered after the ipl device reset, the CPU is stopped and
the VM will not run. In fact, that hinders us from converting the ipl device
into a TYPE_DEVICE. Let's change that by manually configuring the ipl cpu
during a system reset, so we have full control and can demangle that code.
Also remove the superflous cpu parameter from s390_update_iplstate on the way.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/s390x/s390-virtio.c')
| -rw-r--r-- | hw/s390x/s390-virtio.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio.c b/hw/s390x/s390-virtio.c index bc013eb3d4..7b8f15bb31 100644 --- a/hw/s390x/s390-virtio.c +++ b/hw/s390x/s390-virtio.c @@ -40,6 +40,7 @@ #include "hw/s390x/s390_flic.h" #include "hw/s390x/s390-virtio.h" #include "hw/s390x/storage-keys.h" +#include "hw/s390x/ipl.h" #include "cpu.h" //#define DEBUG_S390 @@ -314,6 +315,17 @@ void s390_nmi(NMIState *n, int cpu_index, Error **errp) } } +void s390_machine_reset(void) +{ + S390CPU *ipl_cpu = S390_CPU(qemu_get_cpu(0)); + + qemu_devices_reset(); + + /* all cpus are stopped - configure and start the ipl cpu only */ + s390_ipl_prepare_cpu(ipl_cpu); + s390_cpu_set_state(CPU_STATE_OPERATING, ipl_cpu); +} + static void s390_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); @@ -322,6 +334,7 @@ static void s390_machine_class_init(ObjectClass *oc, void *data) mc->alias = "s390"; mc->desc = "VirtIO based S390 machine"; mc->init = s390_init; + mc->reset = s390_machine_reset; mc->block_default_type = IF_VIRTIO; mc->max_cpus = 255; mc->no_serial = 1; |