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Diffstat (limited to 'arch/x86/kvm/vmx/posted_intr.c')
-rw-r--r--arch/x86/kvm/vmx/posted_intr.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/posted_intr.c b/arch/x86/kvm/vmx/posted_intr.c
index 459748680daf..5f81ef092bd4 100644
--- a/arch/x86/kvm/vmx/posted_intr.c
+++ b/arch/x86/kvm/vmx/posted_intr.c
@@ -238,6 +238,20 @@ bool pi_has_pending_interrupt(struct kvm_vcpu *vcpu)
/*
+ * Bail out of the block loop if the VM has an assigned
+ * device, but the blocking vCPU didn't reconfigure the
+ * PI.NV to the wakeup vector, i.e. the assigned device
+ * came along after the initial check in pi_pre_block().
+ */
+void vmx_pi_start_assignment(struct kvm *kvm)
+{
+ if (!irq_remapping_cap(IRQ_POSTING_CAP))
+ return;
+
+ kvm_make_all_cpus_request(kvm, KVM_REQ_UNBLOCK);
+}
+
+/*
* pi_update_irte - set IRTE for Posted-Interrupts
*
* @kvm: kvm