arm64: KVM: split GICv2 world switch from hyp code

Move the GICv2 world switch code into its own file, and add the
necessary indirection to the arm64 switch code.

Also introduce a new type field to the vgic_params structure.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/virt/kvm/arm/vgic-v2.c b/virt/kvm/arm/vgic-v2.c
index 940418ebd0d0..d6c9c142f813 100644
--- a/virt/kvm/arm/vgic-v2.c
+++ b/virt/kvm/arm/vgic-v2.c
@@ -236,6 +236,7 @@ int vgic_v2_probe(struct device_node *vgic_node,
         kvm_info("%s@%llx IRQ%d\n", vgic_node->name,
                  vctrl_res.start, vgic->maint_irq);
 
+        vgic->type = VGIC_V2;
         *ops = &vgic_v2_ops;
         *params = vgic;
         goto out;
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 1348e74c4d11..7867b9a1f694 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1568,6 +1568,9 @@ int kvm_vgic_hyp_init(void)
 
         on_each_cpu(vgic_init_maintenance_interrupt, NULL, 1);
 
+        /* Callback into for arch code for setup */
+        vgic_arch_setup(vgic);
+
         return 0;
 
 out_free_irq: