when virtfn is used, we should use physfn to find correct drhd
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
drivers/pci/dmar.c | 5 +++++
1 file changed, 5 insertions(+)
Index: linux-2.6/drivers/pci/dmar.c
===================================================================
--- linux-2.6.orig/drivers/pci/dmar.c
+++ linux-2.6/drivers/pci/dmar.c
@@ -500,6 +500,11 @@ dmar_find_matched_drhd_unit(struct pci_d
struct dmar_drhd_unit *dmaru = NULL;
struct acpi_dmar_hardware_unit *drhd;
+#ifdef CONFIG_PCI_IOV
+ if (dev->is_virtfn)
+ dev = dev->physfn;
+#endif
+
list_for_each_entry(dmaru, &dmar_drhd_units, list) {
drhd = container_of(dmaru->hdr,
struct acpi_dmar_hardware_unit,
--
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