arm/arm64: KVM: Introduce stage2_unmap_vm

[deliverable/linux.git] / arch / arm / kvm / arm.c

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 4043769583e7fc4e4a68311ff7703b984b1e4d83..da87c07d8577f9ce9e0bf8a73bb3b6823947ae3e 100644 (file)
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -701,6 +701,13 @@ static int kvm_arch_vcpu_ioctl_vcpu_init(struct kvm_vcpu *vcpu,
        if (ret)
                return ret;
 
+       /*
+        * Ensure a rebooted VM will fault in RAM pages and detect if the
+        * guest MMU is turned off and flush the caches as needed.
+        */
+       if (vcpu->arch.has_run_once)
+               stage2_unmap_vm(vcpu->kvm);
+
        vcpu_reset_hcr(vcpu);
 
        /*