update bar masking

diff --git a/palacios/src/devices/pci.c b/palacios/src/devices/pci.c
index 8abf45e..19eb21d 100644 (file)
--- a/palacios/src/devices/pci.c
+++ b/palacios/src/devices/pci.c
@@ -488,7 +488,6 @@ static int init_i440fx(struct vm_device * dev) {
     pci_dev->config_header.revision = 0x0002;
     pci_dev->config_header.subclass = 0x00; //  SubClass: host2pci
     pci_dev->config_header.class = 0x06;    // Class: PCI bridge
-    pci_dev->config_header.header_type = 0x00;
 
     pci_dev->bus_num = 0;
     return 0;
@@ -565,9 +564,10 @@ static inline int init_bars(struct pci_device * pci_dev) {
        int bar_offset = 0x10 + 4 * i;
 
        if (pci_dev->bar[i].type == PCI_BAR_IO) {
+           pci_dev->bar[i].mask = 0x0000fffd;
            *(uint32_t *)(pci_dev->config_space + bar_offset) = 0x00000001;
        } else if (pci_dev->bar[i].type == PCI_BAR_MEM32) {
-           pci_dev->bar[i].mask = (pci_dev->bar[i].num_pages << 12) - 1;
+           pci_dev->bar[i].mask = ~((pci_dev->bar[i].num_pages << 12) - 1);
            pci_dev->bar[i].mask |= 0xf; // preserve the configuration flags
             
            *(uint32_t *)(pci_dev->config_space + bar_offset) = 0x00000008;