[Xen-devel] [PATCH] xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 492ade8..d99346e 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -374,7 +374,7 @@ int __init pci_xen_init(void)
 
 int __init pci_xen_hvm_init(void)
 {
-       if (!xen_feature(XENFEAT_hvm_pirqs))
+       if (!xen_have_vector_callback || !xen_feature(XENFEAT_hvm_pirqs))
                return 0;
 
 #ifdef CONFIG_ACPI

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