x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource

This allows us to use the BIOS SR-IOV allocations rather than assigning
our own later on.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 15 insertions, 2 deletions

diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index b73c09f45210..5dc9e8c63fcd 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -146,16 +146,29 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
         }
 }
 
+struct pci_check_idx_range {
+        int start;
+        int end;
+};
+
 static void __init pcibios_allocate_resources(int pass)
 {
         struct pci_dev *dev = NULL;
-        int idx, disabled;
+        int idx, disabled, i;
         u16 command;
         struct resource *r;
 
+        struct pci_check_idx_range idx_range[] = {
+                { PCI_STD_RESOURCES, PCI_STD_RESOURCE_END },
+#ifdef CONFIG_PCI_IOV
+                { PCI_IOV_RESOURCES, PCI_IOV_RESOURCE_END },
+#endif
+        };
+
         for_each_pci_dev(dev) {
                 pci_read_config_word(dev, PCI_COMMAND, &command);
-                for (idx = 0; idx < PCI_ROM_RESOURCE; idx++) {
+                for (i = 0; i < ARRAY_SIZE(idx_range); i++)
+                for (idx = idx_range[i].start; idx <= idx_range[i].end; idx++) {
                         r = &dev->resource[idx];
                         if (r->parent)          /* Already allocated */
                                 continue;