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Diffstat (limited to 'virt/kvm/arm/arm.c')
-rw-r--r--virt/kvm/arm/arm.c48
1 files changed, 46 insertions, 2 deletions
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 772bf74ac2e9..a6524ff27de4 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -27,6 +27,8 @@
#include <linux/mman.h>
#include <linux/sched.h>
#include <linux/kvm.h>
+#include <linux/kvm_irqfd.h>
+#include <linux/irqbypass.h>
#include <trace/events/kvm.h>
#include <kvm/arm_pmu.h>
@@ -175,6 +177,8 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
{
int i;
+ kvm_vgic_destroy(kvm);
+
free_percpu(kvm->arch.last_vcpu_ran);
kvm->arch.last_vcpu_ran = NULL;
@@ -184,8 +188,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
kvm->vcpus[i] = NULL;
}
}
-
- kvm_vgic_destroy(kvm);
}
int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
@@ -313,11 +315,13 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
{
kvm_timer_schedule(vcpu);
+ kvm_vgic_v4_enable_doorbell(vcpu);
}
void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
{
kvm_timer_unschedule(vcpu);
+ kvm_vgic_v4_disable_doorbell(vcpu);
}
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
@@ -1450,6 +1454,46 @@ struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr)
return NULL;
}
+bool kvm_arch_has_irq_bypass(void)
+{
+ return true;
+}
+
+int kvm_arch_irq_bypass_add_producer(struct irq_bypass_consumer *cons,
+ struct irq_bypass_producer *prod)
+{
+ struct kvm_kernel_irqfd *irqfd =
+ container_of(cons, struct kvm_kernel_irqfd, consumer);
+
+ return kvm_vgic_v4_set_forwarding(irqfd->kvm, prod->irq,
+ &irqfd->irq_entry);
+}
+void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons,
+ struct irq_bypass_producer *prod)
+{
+ struct kvm_kernel_irqfd *irqfd =
+ container_of(cons, struct kvm_kernel_irqfd, consumer);
+
+ kvm_vgic_v4_unset_forwarding(irqfd->kvm, prod->irq,
+ &irqfd->irq_entry);
+}
+
+void kvm_arch_irq_bypass_stop(struct irq_bypass_consumer *cons)
+{
+ struct kvm_kernel_irqfd *irqfd =
+ container_of(cons, struct kvm_kernel_irqfd, consumer);
+
+ kvm_arm_halt_guest(irqfd->kvm);
+}
+
+void kvm_arch_irq_bypass_start(struct irq_bypass_consumer *cons)
+{
+ struct kvm_kernel_irqfd *irqfd =
+ container_of(cons, struct kvm_kernel_irqfd, consumer);
+
+ kvm_arm_resume_guest(irqfd->kvm);
+}
+
/**
* Initialize Hyp-mode and memory mappings on all CPUs.
*/