kill drives_table

First step cleaning up the drives handling.  This one does nothing but
removing drives_table[], still it became seriously big.

drive_get_index() is gone and is replaced by drives_get() which hands
out DriveInfo pointers instead of a table index.  This needs adaption in
*tons* of places all over.

The drives are now maintained as linked list.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 7 insertions, 14 deletions

diff --git a/hw/pc.c b/hw/pc.c
index c55c303bc1..46ff8cf7ca 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1126,7 +1126,7 @@ static void pc_init1(ram_addr_t ram_size,
     CPUState *env;
     qemu_irq *cpu_irq;
     qemu_irq *i8259;
-    int index;
+    DriveInfo *dinfo;
     BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
     BlockDriverState *fd[MAX_FD];
     int using_vga = cirrus_vga_enabled || std_vga_enabled || vmsvga_enabled;
@@ -1356,11 +1356,8 @@ static void pc_init1(ram_addr_t ram_size,
     }
 
     for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
-        index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
-	if (index != -1)
-	    hd[i] = drives_table[index].bdrv;
-	else
-	    hd[i] = NULL;
+        dinfo = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
+        hd[i] = dinfo ? dinfo->bdrv : NULL;
     }
 
     if (pci_enabled) {
@@ -1379,11 +1376,8 @@ static void pc_init1(ram_addr_t ram_size,
 #endif
 
     for(i = 0; i < MAX_FD; i++) {
-        index = drive_get_index(IF_FLOPPY, 0, i);
-	if (index != -1)
-	    fd[i] = drives_table[index].bdrv;
-	else
-	    fd[i] = NULL;
+        dinfo = drive_get(IF_FLOPPY, 0, i);
+        fd[i] = dinfo ? dinfo->bdrv : NULL;
     }
     floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd);
 
@@ -1437,12 +1431,11 @@ static void pc_init1(ram_addr_t ram_size,
 
     /* Add virtio block devices */
     if (pci_enabled) {
-        int index;
         int unit_id = 0;
 
-        while ((index = drive_get_index(IF_VIRTIO, 0, unit_id)) != -1) {
+        while ((dinfo = drive_get(IF_VIRTIO, 0, unit_id)) != NULL) {
             pci_dev = pci_create(virtio_blk_name,
-                                 drives_table[index].devaddr);
+                                 dinfo->devaddr);
             qdev_init(&pci_dev->qdev);
             unit_id++;
         }