Add handle of write to command register

diff --git a/palacios/src/devices/pci.c b/palacios/src/devices/pci.c
index 4b2566c..8170e6e 100644 (file)
--- a/palacios/src/devices/pci.c
+++ b/palacios/src/devices/pci.c
@@ -370,8 +370,16 @@ static int data_port_write(ushort_t port, void * src, uint_t length, struct vm_d
                }
            } else if ((cur_reg >= 0x30) && (cur_reg < 0x34)) {
                pci_dev->ext_rom_updated = 1;
-           } else if ((cur_reg == 0x04) || (cur_reg == 0x05)) {
-               // COMMAND update
+           } else if (cur_reg == 0x04) {
+             // COMMAND update      
+             uint8_t command = *((uint8_t *)src + i);
+
+             pci_dev->config_space[cur_reg] = command;       
+
+             if (pci_dev->cmd_update) {
+               pci_dev->cmd_update(pci_dev, (command & 0x01), (command & 0x02));
+             }
+             
            } else if (cur_reg == 0x0f) {
                // BIST update
            }