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hw/intc/arm_gicv3: Add vmstate descriptors 

Add state structure descriptors for the GICv3 state. We mark
the KVM GICv3 device as having a migration blocker until the
code to save and restore the state in the kernel is implemented.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1465915112-29272-9-git-send-email-peter.maydell@linaro.org
[PMM: Adjust to renamed struct fields; switched to using uint32_t
 array backed bitmaps; add migration blocker setting]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Pavel Fedin 2016-06-17 15:23:46 +01:00 committed by Peter Maydell
parent 3faf2b0cd5
commit 757caeed76
2 changed files with 57 additions and 1 deletions
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50
hw/intc/arm_gicv3_common.c
View File

@ -49,11 +49,59 @@ static int gicv3_post_load(void *opaque, int version_id)
return 0;
}
static const VMStateDescription vmstate_gicv3_cpu = {
.name = "arm_gicv3_cpu",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(level, GICv3CPUState),
VMSTATE_UINT32(gicr_ctlr, GICv3CPUState),
VMSTATE_UINT32_ARRAY(gicr_statusr, GICv3CPUState, 2),
VMSTATE_UINT32(gicr_waker, GICv3CPUState),
VMSTATE_UINT64(gicr_propbaser, GICv3CPUState),
VMSTATE_UINT64(gicr_pendbaser, GICv3CPUState),
VMSTATE_UINT32(gicr_igroupr0, GICv3CPUState),
VMSTATE_UINT32(gicr_ienabler0, GICv3CPUState),
VMSTATE_UINT32(gicr_ipendr0, GICv3CPUState),
VMSTATE_UINT32(gicr_iactiver0, GICv3CPUState),
VMSTATE_UINT32(edge_trigger, GICv3CPUState),
VMSTATE_UINT32(gicr_igrpmodr0, GICv3CPUState),
VMSTATE_UINT32(gicr_nsacr, GICv3CPUState),
VMSTATE_UINT8_ARRAY(gicr_ipriorityr, GICv3CPUState, GIC_INTERNAL),
VMSTATE_UINT64_ARRAY(icc_ctlr_el1, GICv3CPUState, 2),
VMSTATE_UINT64(icc_pmr_el1, GICv3CPUState),
VMSTATE_UINT64_ARRAY(icc_bpr, GICv3CPUState, 3),
VMSTATE_UINT64_2DARRAY(icc_apr, GICv3CPUState, 3, 4),
VMSTATE_UINT64_ARRAY(icc_igrpen, GICv3CPUState, 3),
VMSTATE_UINT64(icc_ctlr_el3, GICv3CPUState),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_gicv3 = {
.name = "arm_gicv3",
.unmigratable = 1,
.version_id = 1,
.minimum_version_id = 1,
.pre_save = gicv3_pre_save,
.post_load = gicv3_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT32(gicd_ctlr, GICv3State),
VMSTATE_UINT32_ARRAY(gicd_statusr, GICv3State, 2),
VMSTATE_UINT32_ARRAY(group, GICv3State, GICV3_BMP_SIZE),
VMSTATE_UINT32_ARRAY(grpmod, GICv3State, GICV3_BMP_SIZE),
VMSTATE_UINT32_ARRAY(enabled, GICv3State, GICV3_BMP_SIZE),
VMSTATE_UINT32_ARRAY(pending, GICv3State, GICV3_BMP_SIZE),
VMSTATE_UINT32_ARRAY(active, GICv3State, GICV3_BMP_SIZE),
VMSTATE_UINT32_ARRAY(level, GICv3State, GICV3_BMP_SIZE),
VMSTATE_UINT32_ARRAY(edge_trigger, GICv3State, GICV3_BMP_SIZE),
VMSTATE_UINT8_ARRAY(gicd_ipriority, GICv3State, GICV3_MAXIRQ),
VMSTATE_UINT64_ARRAY(gicd_irouter, GICv3State, GICV3_MAXIRQ),
VMSTATE_UINT32_ARRAY(gicd_nsacr, GICv3State,
DIV_ROUND_UP(GICV3_MAXIRQ, 16)),
VMSTATE_STRUCT_VARRAY_POINTER_UINT32(cpu, GICv3State, num_cpu,
vmstate_gicv3_cpu, GICv3CPUState),
VMSTATE_END_OF_LIST()
}
};
void gicv3_init_irqs_and_mmio(GICv3State *s, qemu_irq_handler handler,

8
hw/intc/arm_gicv3_kvm.c
View File

@ -26,6 +26,7 @@
#include "sysemu/kvm.h"
#include "kvm_arm.h"
#include "vgic_common.h"
#include "migration/migration.h"
#ifdef DEBUG_GICV3_KVM
#define DPRINTF(fmt, ...) \
@ -119,6 +120,13 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
KVM_VGIC_V3_ADDR_TYPE_DIST, s->dev_fd);
kvm_arm_register_device(&s->iomem_redist, -1, KVM_DEV_ARM_VGIC_GRP_ADDR,
KVM_VGIC_V3_ADDR_TYPE_REDIST, s->dev_fd);
/* Block migration of a KVM GICv3 device: the API for saving and restoring
* the state in the kernel is not yet finalised in the kernel or
* implemented in QEMU.
*/
error_setg(&s->migration_blocker, "vGICv3 migration is not implemented");
migrate_add_blocker(s->migration_blocker);
}
static void kvm_arm_gicv3_class_init(ObjectClass *klass, void *data)