diff options
| author | Fan Zhang <zhangfan@linux.vnet.ibm.com> | 2017-02-15 04:47:49 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-07-14 12:29:49 +0200 |
| commit | 62deb62d999cf9e2be61272c6b720104f764bd6a (patch) | |
| tree | 5462d3a6f5935ece77b6a9e560e91c7cad50797c /hw/s390x | |
| parent | c0a9cd940e6bbad75cef3b5e87b826125702c353 (diff) | |
s390x/kvm: enable guarded storage
Introduce guarded storage support for KVM guests on s390.
We need to enable the capability, extend machine check validity,
sigp store-additional-status-at-address, and migration.
The feature is fenced for older machine type versions.
Signed-off-by: Fan Zhang <zhangfan@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'hw/s390x')
| -rw-r--r-- | hw/s390x/s390-virtio-ccw.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index 657a45ff95..ce3921e4de 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -211,6 +211,7 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data) s390mc->ri_allowed = true; s390mc->cpu_model_allowed = true; s390mc->css_migration_enabled = true; + s390mc->gs_allowed = true; mc->init = ccw_init; mc->reset = s390_machine_reset; mc->hot_add_cpu = s390_hot_add_cpu; @@ -288,6 +289,22 @@ bool cpu_model_allowed(void) return get_machine_class()->cpu_model_allowed; } +bool gs_allowed(void) +{ + if (kvm_enabled()) { + MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine()); + if (object_class_dynamic_cast(OBJECT_CLASS(mc), + TYPE_S390_CCW_MACHINE)) { + S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); + + return s390mc->gs_allowed; + } + /* Make sure the "none" machine can have gs */ + return true; + } + return false; +} + static char *machine_get_loadparm(Object *obj, Error **errp) { S390CcwMachineState *ms = S390_CCW_MACHINE(obj); @@ -515,6 +532,7 @@ static void ccw_machine_2_9_class_options(MachineClass *mc) { S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); + s390mc->gs_allowed = false; ccw_machine_2_10_class_options(mc); SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_9); s390mc->css_migration_enabled = false; |