@@ -47,6 +47,13 @@ config KVM_ARM_VGIC
---help---
Adds support for a hardware assisted, in-kernel GIC emulation.
+config KVM_ARM_TIMER
+ bool "KVM support for Architected Timers"
+ depends on KVM_ARM_VGIC && ARM_ARCH_TIMER
+ select HAVE_KVM_IRQCHIP
+ ---help---
+ Adds support for the Architected Timers in virtual machines
+
source drivers/virtio/Kconfig
endif # VIRTUALIZATION
@@ -20,3 +20,4 @@ obj-$(CONFIG_KVM_ARM_HOST) += $(addprefix ../../../virt/kvm/, kvm_main.o coalesc
obj-$(CONFIG_KVM_ARM_HOST) += arm.o guest.o mmu.o emulate.o reset.o coproc.o
obj-$(CONFIG_KVM_ARM_VGIC) += vgic.o
+obj-$(CONFIG_KVM_ARM_TIMER) += timer.o
@@ -285,6 +285,7 @@ out:
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
{
kvm_mmu_free_memory_caches(vcpu);
+ kvm_timer_vcpu_terminate(vcpu);
kmem_cache_free(kvm_vcpu_cache, vcpu);
}
@@ -316,6 +317,9 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
/* Set up VGIC */
kvm_vgic_vcpu_init(vcpu);
+ /* Set up the timer */
+ kvm_timer_vcpu_init(vcpu);
+
return 0;
}
@@ -1016,6 +1020,13 @@ static int init_hyp_mode(void)
if (!err)
vgic_present = true;
+ /*
+ * Init HYP architected timer support
+ */
+ err = kvm_timer_hyp_init();
+ if (err)
+ goto out_free_mappings;
+
return 0;
out_free_vfp:
free_percpu(kvm_host_vfp_state);
@@ -1111,5 +1111,9 @@ int kvm_vgic_init(struct kvm *kvm)
out:
mutex_unlock(&kvm->lock);
+
+ if (!ret)
+ kvm_timer_init(kvm);
+
return ret;
}