1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 093f5f4272d3..5ef62ed20ba4 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -427,6 +427,7 @@ int __init pci_xen_init(void)
         x86_msi.teardown_msi_irqs = xen_teardown_msi_irqs;
         x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
         x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
+        pci_msi_ignore_mask = 1;
 #endif
         return 0;
 }
@@ -508,6 +509,7 @@ int __init pci_xen_initial_domain(void)
         x86_msi.restore_msi_irqs = xen_initdom_restore_msi_irqs;
         x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
         x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
+        pci_msi_ignore_mask = 1;
 #endif
         xen_setup_acpi_sci();
         __acpi_register_gsi = acpi_register_gsi_xen;