updated pci

[palacios.git] / palacios / src / devices / pci.c

diff --git a/palacios/src/devices/pci.c b/palacios/src/devices/pci.c
index de3e0ea..1cad975 100644 (file)
--- a/palacios/src/devices/pci.c
+++ b/palacios/src/devices/pci.c
@@ -125,7 +125,7 @@ static int get_free_dev_num(struct pci_bus * bus) {
            // availability
            for (j = 0; j < 8; j++) {
                if (!(bus->dev_map[i] & (0x1 << j))) {
-                   return i * 8 + j;
+                   return ((i * 8) + j);
                }
            }
        }
@@ -135,7 +135,7 @@ static int get_free_dev_num(struct pci_bus * bus) {
 }
 
 static void allocate_dev_num(struct pci_bus * bus, int dev_num) {
-    int major = dev_num / 8;
+    int major = (dev_num / 8);
     int minor = dev_num % 8;
 
     bus->dev_map[major] |= (0x1 << minor);
@@ -381,8 +381,17 @@ 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_update_flag = 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
                pci_dev->config_header.BIST = 0x00;
@@ -456,11 +465,22 @@ static int pci_deinit_device(struct vm_device * dev) {
 
 
 static int init_i440fx(struct vm_device * dev) {
-    /*struct pci_device * pci_dev = v3_pci_register_device(dev, 0, "i440FX", 0, 
-                                                        NULL, NULL, NULL);
+    struct pci_device * pci_dev = NULL;
+    struct v3_pci_bar bars[6];
+    int i;
+    
+    for (i = 0; i < 6; i++) {
+       bars[i].type = PCI_BAR_NONE;
+       bars[i].mem_hook = 0;
+       bars[i].num_pages = 0;
+       bars[i].bar_update = NULL;
+    }    
+
+    pci_dev = v3_pci_register_device(dev, PCI_STD_DEVICE, 0, "i440FX", 0, bars,
+                                    NULL, NULL, NULL, NULL);
     
     if (!pci_dev) {
-       return -1;
+       return -1;
     }
     
     pci_dev->config_header.vendor_id = 0x8086;
@@ -468,15 +488,51 @@ 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;
 }
 
 
 
+static void test_devices(struct vm_device * dev) {
+    struct pci_device * pci_dev = NULL;
+    struct v3_pci_bar bars[6];
+    int i;
+    
+    for (i = 0; i < 6; i++) {
+       bars[i].type = PCI_BAR_NONE;
+       bars[i].mem_hook = 0;
+       bars[i].num_pages = 0;
+       bars[i].bar_update = NULL;
+    }    
+
+
+    pci_dev = v3_pci_register_device(dev, PCI_STD_DEVICE, 0, "", 0, bars,
+                                    NULL, NULL, NULL, NULL);
+    
+    pci_dev->config_header.vendor_id = 0x8086;
+    pci_dev->config_header.device_id = 0x0101;
+    pci_dev->config_header.revision = 0x0002;
+    pci_dev->config_header.subclass = 0x01; //  SubClass: host2pci
+    pci_dev->config_header.class = 0x01;    // Class: PCI bridge
+
+    pci_dev = v3_pci_register_device(dev, PCI_STD_DEVICE, 0, "", 0, bars,
+                                    NULL, NULL, NULL, NULL);
+    
+    pci_dev->config_header.vendor_id = 0x8086;
+    pci_dev->config_header.device_id = 0x0101;
+    pci_dev->config_header.revision = 0x0002;
+    pci_dev->config_header.subclass = 0x00; //  SubClass: host2pci
+    pci_dev->config_header.class = 0x02;    // Class: PCI bridge
+    
+
+
+
+}
+
+
+
 static void init_pci_busses(struct pci_internal * pci_state) {
     int i;
 
@@ -507,6 +563,8 @@ static int pci_init_device(struct vm_device * dev) {
        return -1;
     }
 
+    test_devices(dev);
+    
     PrintDebug("Sizeof config header=%d\n", (int)sizeof(struct pci_config_header));
     
     for (i = 0; i < 4; i++) {
@@ -546,9 +604,10 @@ 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;
@@ -576,6 +635,7 @@ static inline int init_bars(struct pci_device * pci_dev) {
 
 // if dev_num == -1, auto assign 
 struct pci_device * v3_pci_register_device(struct vm_device * pci,
+                                          pci_device_type_t dev_type, 
                                           uint_t bus_num,
                                           const char * name,
                                           int dev_num,
@@ -618,6 +678,15 @@ struct pci_device * v3_pci_register_device(struct vm_device * pci,
     memset(pci_dev, 0, sizeof(struct pci_device));
     
     
+    switch (dev_type) {
+       case PCI_STD_DEVICE:
+           pci_dev->config_header.header_type = 0x00;
+           break;
+       default:
+           PrintError("Unhandled PCI Device Type: %d\n", dev_type);
+           return NULL;
+    }
+
     pci_dev->bus_num = bus_num;
     pci_dev->dev_num = dev_num;