PCI bugfix for passthrough bars

diff --git a/palacios/src/devices/pci.c b/palacios/src/devices/pci.c
index 7bac081..c911639 100644 (file)
--- a/palacios/src/devices/pci.c
+++ b/palacios/src/devices/pci.c
@@ -1389,6 +1389,9 @@ static inline int init_bars(struct v3_vm_info * vm, struct pci_device * pci_dev)
            // Call the bar init function to get the local cached value
            bar->bar_init(i, &(bar->val), bar->private_data);
 
+           // Copy back changes it made
+            *(uint32_t *)(pci_dev->config_space + bar_offset) = bar->val;
+
        } else {
            PrintError(vm, VCORE_NONE, "Invalid BAR type for bar #%d\n", i);
            return -1;