From patchwork Wed Oct 10 15:07:36 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [RFC,v2,3/6] hw/arm_gic: Add presave/postload hooks From: Peter Maydell X-Patchwork-Id: 190693 Message-Id: <1349881659-8403-4-git-send-email-peter.maydell@linaro.org> To: qemu-devel@nongnu.org Cc: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, patches@linaro.org Date: Wed, 10 Oct 2012 16:07:36 +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 Reviewed-by: Andreas Färber --- 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 360e782..d972755 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) { gic_state *s = (gic_state *)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) { gic_state *s = (gic_state *)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 db4fad5..183dca6 100644 --- a/hw/arm_gic_internal.h +++ b/hw/arm_gic_internal.h @@ -118,6 +118,8 @@ void gic_init_irqs_and_distributor(gic_state *s, int num_irq); typedef struct ARMGICCommonClass { SysBusDeviceClass parent_class; + void (*pre_save)(gic_state *s); + void (*post_load)(gic_state *s); } ARMGICCommonClass; #define TYPE_ARM_GIC "arm_gic"