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[Qemu-devel] [RFC v3 4/8] hw/arm_gic: Add presave/postload hooks
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [RFC v3 4/8] hw/arm_gic: Add presave/postload hooks |
Date: |
Tue, 23 Oct 2012 11:50:24 +0100 |
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 <address@hidden>
Reviewed-by: Andreas Färber <address@hidden>
---
hw/arm_gic_common.c | 10 ++++++++++
hw/arm_gic_internal.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/hw/arm_gic_common.c b/hw/arm_gic_common.c
index 8369309..961b44c 100644
--- a/hw/arm_gic_common.c
+++ b/hw/arm_gic_common.c
@@ -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;
}
diff --git a/hw/arm_gic_internal.h b/hw/arm_gic_internal.h
index 699352c..3640be0 100644
--- a/hw/arm_gic_internal.h
+++ b/hw/arm_gic_internal.h
@@ -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"
--
1.7.9.5
- [Qemu-devel] [RFC v3 0/8] QEMU: Support KVM on ARM, Peter Maydell, 2012/10/23
- [Qemu-devel] [RFC v3 5/8] linux-headers: update with VGIC related headers (not for upstream), Peter Maydell, 2012/10/23
- [Qemu-devel] [RFC v3 4/8] hw/arm_gic: Add presave/postload hooks,
Peter Maydell <=
- [Qemu-devel] [RFC v3 1/8] linux-headers: Add ARM KVM headers (not for upstream), Peter Maydell, 2012/10/23
- [Qemu-devel] [RFC v3 6/8] target-arm: Use MemoryListener to identify GIC base address for KVM, Peter Maydell, 2012/10/23
- [Qemu-devel] [RFC v3 8/8] configure: Enable KVM on ARM, Peter Maydell, 2012/10/23
- [Qemu-devel] [RFC v3 2/8] ARM: KVM: Add support for KVM on ARM architecture, Peter Maydell, 2012/10/23
- [Qemu-devel] [RFC v3 3/8] ARM KVM: save and load VFP registers from kernel, Peter Maydell, 2012/10/23
- [Qemu-devel] [RFC v3 7/8] hw/kvm/arm_gic: Implement support for KVM in-kernel ARM GIC, Peter Maydell, 2012/10/23