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hw/arm_gic: Add presave/postload hooks

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Add presave/postload hooks to the ARM GIC common base class.
These will be used by the KVM in-kernel GIC subclass to sync
state between kernel and userspace when migrating.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Maydell 2013-03-05 00:34:41 +00:00
parent 81635574f6
commit 9ecb992674
2 changed files with 12 additions and 0 deletions
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10
hw/arm_gic_common.c
View file

@ -23,9 +23,14 @@
static void gic_save(QEMUFile *f, void *opaque)
{
GICState *s = (GICState *)opaque;
ARMGICCommonClass *c = ARM_GIC_COMMON_GET_CLASS(s);
int i;
int j;
if (c->pre_save) {
c->pre_save(s);
}
qemu_put_be32(f, s->enabled);
for (i = 0; i < s->num_cpu; i++) {
qemu_put_be32(f, s->cpu_enabled[i]);
@ -57,6 +62,7 @@ static void gic_save(QEMUFile *f, void *opaque)
static int gic_load(QEMUFile *f, void *opaque, int version_id)
{
GICState *s = (GICState *)opaque;
ARMGICCommonClass *c = ARM_GIC_COMMON_GET_CLASS(s);
int i;
int j;
@ -91,6 +97,10 @@ static int gic_load(QEMUFile *f, void *opaque, int version_id)
s->irq_state[i].trigger = qemu_get_byte(f);
}
if (c->post_load) {
c->post_load(s);
}
return 0;
}

2
hw/arm_gic_internal.h
View file

@ -118,6 +118,8 @@ void gic_init_irqs_and_distributor(GICState *s, int num_irq);
typedef struct ARMGICCommonClass {
SysBusDeviceClass parent_class;
void (*pre_save)(GICState *s);
void (*post_load)(GICState *s);
} ARMGICCommonClass;
#define TYPE_ARM_GIC "arm_gic"