[PATCH 52/55] KVM: arm64: vgic-its: Add pointer to corresponding kvm_device

[Marc Zyngier]

Going from the ITS structure to the corresponding KVM structure
would be quite handy at times. The kvm_device pointer that is
passed at create time is quite convenient for this, so let's
keep a copy of it in the vgic_its structure.

This will be put to a good use in subsequent patches.

Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
---
 include/kvm/arm_vgic.h       | 1 +
 virt/kvm/arm/vgic/vgic-its.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 4e63a07..540da51 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -138,6 +138,7 @@ struct vgic_its {
 	bool			enabled;
 	bool			initialized;
 	struct vgic_io_device	iodev;
+	struct kvm_device	*dev;
 
 	/* These registers correspond to GITS_BASER{0,1} */
 	u64			baser_device_table;
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index d6f68e9..dcae567 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -1368,6 +1368,7 @@ static int vgic_its_create(struct kvm_device *dev, u32 type)
 	dev->kvm->arch.vgic.has_its = true;
 	its->initialized = false;
 	its->enabled = false;
+	its->dev = dev;
 
 	its->baser_device_table = INITIAL_BASER_VALUE			|
 		((u64)GITS_BASER_TYPE_DEVICE << GITS_BASER_TYPE_SHIFT);
-- 
2.8.1