diff options
| author | Pavel Fedin <p.fedin@samsung.com> | 2015-10-27 12:00:50 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-10-27 12:00:50 +0000 |
| commit | 24182fbc19cbc7c387bb350a72e6b55f63ea1747 (patch) | |
| tree | a61e7e45e06de6081517c0eaf537b0a42db7bf6d /hw/intc | |
| parent | b876452507d0b719cff0b478efafb34ac41db683 (diff) | |
arm_gic_kvm: Disable live migration if not supported
Currently, if the kernel does not have live migration API, the migration
will still be attempted, but vGIC save/restore functions will just not do
anything. This will result in a broken machine state.
This patch fixes the problem by adding migration blocker if kernel API is
not supported.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/intc')
| -rw-r--r-- | hw/intc/arm_gic_kvm.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/hw/intc/arm_gic_kvm.c b/hw/intc/arm_gic_kvm.c index e8b2386908..0ceebbf87e 100644 --- a/hw/intc/arm_gic_kvm.c +++ b/hw/intc/arm_gic_kvm.c @@ -20,6 +20,7 @@ */ #include "hw/sysbus.h" +#include "migration/migration.h" #include "sysemu/kvm.h" #include "kvm_arm.h" #include "gic_internal.h" @@ -307,11 +308,6 @@ static void kvm_arm_gic_put(GICState *s) int num_cpu; int num_irq; - if (!kvm_arm_gic_can_save_restore(s)) { - DPRINTF("Cannot put kernel gic state, no kernel interface"); - return; - } - /* Note: We do the restore in a slightly different order than the save * (where the order doesn't matter and is simply ordered according to the * register offset values */ @@ -411,11 +407,6 @@ static void kvm_arm_gic_get(GICState *s) int i; int cpu; - if (!kvm_arm_gic_can_save_restore(s)) { - DPRINTF("Cannot get kernel gic state, no kernel interface"); - return; - } - /***************************************************************** * Distributor State */ @@ -503,7 +494,10 @@ static void kvm_arm_gic_reset(DeviceState *dev) KVMARMGICClass *kgc = KVM_ARM_GIC_GET_CLASS(s); kgc->parent_reset(dev); - kvm_arm_gic_put(s); + + if (kvm_arm_gic_can_save_restore(s)) { + kvm_arm_gic_put(s); + } } static void kvm_arm_gic_realize(DeviceState *dev, Error **errp) @@ -573,6 +567,12 @@ static void kvm_arm_gic_realize(DeviceState *dev, Error **errp) KVM_DEV_ARM_VGIC_GRP_ADDR, KVM_VGIC_V2_ADDR_TYPE_CPU, s->dev_fd); + + if (!kvm_arm_gic_can_save_restore(s)) { + error_setg(&s->migration_blocker, "This operating system kernel does " + "not support vGICv2 migration"); + migrate_add_blocker(s->migration_blocker); + } } static void kvm_arm_gic_class_init(ObjectClass *klass, void *data) |