Add -drive parameter, by Laurent Vivier.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3759 c046a42c-6fe2-441c-8c8c-71466251a162

24 files changed, 389 insertions, 104 deletions

diff --git a/hw/esp.c b/hw/esp.c
index b6c58ff711..d6af3f61f0 100644
--- a/hw/esp.c
+++ b/hw/esp.c
@@ -50,14 +50,11 @@ do { printf("ESP: " fmt , ##args); } while (0)
 #define ESP_REGS 16
 #define ESP_SIZE (ESP_REGS * 4)
 #define TI_BUFSZ 32
-/* The HBA is ID 7, so for simplicitly limit to 7 devices.  */
-#define ESP_MAX_DEVS      7
 
 typedef struct ESPState ESPState;
 
 struct ESPState {
     qemu_irq irq;
-    BlockDriverState **bd;
     uint8_t rregs[ESP_REGS];
     uint8_t wregs[ESP_REGS];
     int32_t ti_size;
@@ -65,7 +62,7 @@ struct ESPState {
     uint8_t ti_buf[TI_BUFSZ];
     int sense;
     int dma;
-    SCSIDevice *scsi_dev[MAX_DISKS];
+    SCSIDevice *scsi_dev[ESP_MAX_DEVS];
     SCSIDevice *current_dev;
     uint8_t cmdbuf[TI_BUFSZ];
     int cmdlen;
@@ -172,7 +169,7 @@ static int get_cmd(ESPState *s, uint8_t *buf)
         s->async_len = 0;
     }
 
-    if (target >= MAX_DISKS || !s->scsi_dev[target]) {
+    if (target >= ESP_MAX_DEVS || !s->scsi_dev[target]) {
         // No such drive
         s->rregs[ESP_RSTAT] = STAT_IN;
         s->rregs[ESP_RINTR] = INTR_DC;
@@ -621,7 +618,7 @@ void esp_scsi_attach(void *opaque, BlockDriverState *bd, int id)
     s->scsi_dev[id] = scsi_disk_init(bd, 0, esp_command_complete, s);
 }
 
-void *esp_init(BlockDriverState **bd, target_phys_addr_t espaddr,
+void *esp_init(target_phys_addr_t espaddr,
                void *dma_opaque, qemu_irq irq, qemu_irq *reset)
 {
     ESPState *s;
@@ -631,7 +628,6 @@ void *esp_init(BlockDriverState **bd, target_phys_addr_t espaddr,
     if (!s)
         return NULL;
 
-    s->bd = bd;
     s->irq = irq;
     s->dma_opaque = dma_opaque;
 
diff --git a/hw/gumstix.c b/hw/gumstix.c
index 15562b7b01..21325177c5 100644
--- a/hw/gumstix.c
+++ b/hw/gumstix.c
@@ -47,6 +47,7 @@ static void connex_init(int ram_size, int vga_ram_size,
                 const char *initrd_filename, const char *cpu_model)
 {
     struct pxa2xx_state_s *cpu;
+    int index;
 
     uint32_t connex_rom = 0x01000000;
     uint32_t connex_ram = 0x04000000;
@@ -59,14 +60,15 @@ static void connex_init(int ram_size, int vga_ram_size,
 
     cpu = pxa255_init(connex_ram, ds);
 
-    if (pflash_table[0] == NULL) {
+    index = drive_get_index(IF_PFLASH, 0, 0);
+    if (index == -1) {
         fprintf(stderr, "A flash image must be given with the "
                 "'pflash' parameter\n");
         exit(1);
     }
 
     if (!pflash_register(0x00000000, qemu_ram_alloc(connex_rom),
-            pflash_table[0], sector_len, connex_rom / sector_len,
+            drives_table[index].bdrv, sector_len, connex_rom / sector_len,
             2, 0, 0, 0, 0)) {
         fprintf(stderr, "qemu: Error registering flash memory.\n");
         exit(1);
@@ -85,6 +87,7 @@ static void verdex_init(int ram_size, int vga_ram_size,
                 const char *initrd_filename, const char *cpu_model)
 {
     struct pxa2xx_state_s *cpu;
+    int index;
 
     uint32_t verdex_rom = 0x02000000;
     uint32_t verdex_ram = 0x10000000;
@@ -97,14 +100,15 @@ static void verdex_init(int ram_size, int vga_ram_size,
 
     cpu = pxa270_init(verdex_ram, ds, cpu_model ?: "pxa270-c0");
 
-    if (pflash_table[0] == NULL) {
+    index = drive_get_index(IF_PFLASH, 0, 0);
+    if (index == -1) {
         fprintf(stderr, "A flash image must be given with the "
                 "'pflash' parameter\n");
         exit(1);
     }
 
     if (!pflash_register(0x00000000, qemu_ram_alloc(verdex_rom),
-            pflash_table[0], sector_len, verdex_rom / sector_len,
+            drives_table[index].bdrv, sector_len, verdex_rom / sector_len,
             2, 0, 0, 0, 0)) {
         fprintf(stderr, "qemu: Error registering flash memory.\n");
         exit(1);
diff --git a/hw/integratorcp.c b/hw/integratorcp.c
index f1d71ff873..549cc25df8 100644
--- a/hw/integratorcp.c
+++ b/hw/integratorcp.c
@@ -478,6 +478,7 @@ static void integratorcp_init(int ram_size, int vga_ram_size,
     uint32_t bios_offset;
     qemu_irq *pic;
     qemu_irq *cpu_pic;
+    int sd;
 
     if (!cpu_model)
         cpu_model = "arm926";
@@ -506,7 +507,12 @@ static void integratorcp_init(int ram_size, int vga_ram_size,
     icp_control_init(0xcb000000);
     pl050_init(0x18000000, pic[3], 0);
     pl050_init(0x19000000, pic[4], 1);
-    pl181_init(0x1c000000, sd_bdrv, pic[23], pic[24]);
+    sd = drive_get_index(IF_SD, 0, 0);
+    if (sd == -1) {
+        fprintf(stderr, "qemu: missing SecureDigital card\n");
+        exit(1);
+    }
+    pl181_init(0x1c000000, drives_table[sd].bdrv, pic[23], pic[24]);
     if (nd_table[0].vlan) {
         if (nd_table[0].model == NULL
             || strcmp(nd_table[0].model, "smc91c111") == 0) {
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c
index c841db1846..dbf67cb0c1 100644
--- a/hw/lsi53c895a.c
+++ b/hw/lsi53c895a.c
@@ -151,9 +151,6 @@ do { fprintf(stderr, "lsi_scsi: error: " fmt , ##args);} while (0)
 #define PHASE_MI          7
 #define PHASE_MASK        7
 
-/* The HBA is ID 7, so for simplicitly limit to 7 devices.  */
-#define LSI_MAX_DEVS      7
-
 /* Maximum length of MSG IN data.  */
 #define LSI_MAX_MSGIN_LEN 8
 
diff --git a/hw/mainstone.c b/hw/mainstone.c
index 13f72b3504..354015202f 100644
--- a/hw/mainstone.c
+++ b/hw/mainstone.c
@@ -29,6 +29,7 @@ static void mainstone_common_init(int ram_size, int vga_ram_size,
     uint32_t mainstone_rom = 0x00800000;
     struct pxa2xx_state_s *cpu;
     qemu_irq *mst_irq;
+    int index;
 
     if (!cpu_model)
         cpu_model = "pxa270-c5";
@@ -47,18 +48,32 @@ static void mainstone_common_init(int ram_size, int vga_ram_size,
     /* Setup initial (reset) machine state */
     cpu->env->regs[15] = PXA2XX_SDRAM_BASE;
 
-	/* There are two 32MiB flash devices on the board */
-	if (!pflash_register(MST_FLASH_0, mainstone_ram + PXA2XX_INTERNAL_SIZE,
-		pflash_table[0], 256 * 1024, 128, 4, 0, 0, 0, 0)) {
-			fprintf(stderr, "qemu: Error register flash memory.\n");
-			exit(1);
-	}
+    /* There are two 32MiB flash devices on the board */
+    index = drive_get_index(IF_PFLASH, 0, 0);
+    if (index == -1) {
+        fprintf(stderr, "Two flash images must be given with the "
+                "'pflash' parameter\n");
+        exit(1);
+    }
+    if (!pflash_register(MST_FLASH_0, mainstone_ram + PXA2XX_INTERNAL_SIZE,
+                         drives_table[index].bdrv,
+                         256 * 1024, 128, 4, 0, 0, 0, 0)) {
+        fprintf(stderr, "qemu: Error registering flash memory.\n");
+        exit(1);
+    }
 
-	if (!pflash_register(MST_FLASH_1, mainstone_ram + PXA2XX_INTERNAL_SIZE,
-		pflash_table[1], 256 * 1024, 128, 4, 0, 0, 0, 0)) {
-			fprintf(stderr, "qemu: Error register flash memory.\n");
-			exit(1);
-	}
+    index = drive_get_index(IF_PFLASH, 0, 1);
+    if (index == -1) {
+        fprintf(stderr, "Two flash images must be given with the "
+                "'pflash' parameter\n");
+        exit(1);
+    }
+    if (!pflash_register(MST_FLASH_1, mainstone_ram + PXA2XX_INTERNAL_SIZE,
+                         drives_table[index].bdrv,
+                         256 * 1024, 128, 4, 0, 0, 0, 0)) {
+        fprintf(stderr, "qemu: Error registering flash memory.\n");
+        exit(1);
+    }
 
     mst_irq = mst_irq_init(cpu, MST_FPGA_PHYS, PXA2XX_PIC_GPIO_0);
     smc91c111_init(&nd_table[0], MST_ETH_PHYS, mst_irq[ETHERNET_IRQ]);
diff --git a/hw/mips_malta.c b/hw/mips_malta.c
index ac6800f65f..6af5e52dc4 100644
--- a/hw/mips_malta.c
+++ b/hw/mips_malta.c
@@ -53,6 +53,8 @@
 #define ENVP_NB_ENTRIES	 	16
 #define ENVP_ENTRY_SIZE	 	256
 
+#define MAX_IDE_BUS 2
+
 extern FILE *logfile;
 
 typedef struct {
@@ -776,6 +778,9 @@ void mips_malta_init (int ram_size, int vga_ram_size,
     uint8_t *eeprom_buf;
     i2c_bus *smbus;
     int i;
+    int index;
+    BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+    BlockDriverState *fd[MAX_FD];
 
     /* init CPUs */
     if (cpu_model == NULL) {
@@ -862,8 +867,22 @@ void mips_malta_init (int ram_size, int vga_ram_size,
     pci_bus = pci_gt64120_init(i8259);
 
     /* Southbridge */
+
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+
+    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;
+    }
+
     piix4_devfn = piix4_init(pci_bus, 80);
-    pci_piix4_ide_init(pci_bus, bs_table, piix4_devfn + 1, i8259);
+    pci_piix4_ide_init(pci_bus, hd, piix4_devfn + 1, i8259);
     usb_uhci_piix4_init(pci_bus, piix4_devfn + 2);
     smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100);
     eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
@@ -883,7 +902,14 @@ void mips_malta_init (int ram_size, int vga_ram_size,
         serial_init(0x2f8, i8259[3], serial_hds[1]);
     if (parallel_hds[0])
         parallel_init(0x378, i8259[7], parallel_hds[0]);
-    floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd_table);
+    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;
+    }
+    floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd);
 
     /* Sound card */
 #ifdef HAS_AUDIO
diff --git a/hw/mips_pica61.c b/hw/mips_pica61.c
index 2a358d53ef..ced0e55671 100644
--- a/hw/mips_pica61.c
+++ b/hw/mips_pica61.c
@@ -44,6 +44,9 @@
 
 #define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
 
+#define MAX_IDE_BUS 2
+#define MAX_FD 2
+
 static const int ide_iobase[2] = { 0x1f0, 0x170 };
 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
 static const int ide_irq[2] = { 14, 15 };
@@ -72,6 +75,8 @@ void mips_pica61_init (int ram_size, int vga_ram_size,
     int i;
     int available_ram;
     qemu_irq *i8259;
+    int index;
+    BlockDriverState *fd[MAX_FD];
 
     /* init CPUs */
     if (cpu_model == NULL) {
@@ -141,9 +146,20 @@ void mips_pica61_init (int ram_size, int vga_ram_size,
     i8042_mm_init(i8259[6], i8259[7], 0x80005060, 0);
 
     /* IDE controller */
-    for(i = 0; i < 2; i++)
+
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+
+    for(i = 0; i < MAX_IDE_BUS; i++) {
+        int hd0, hd1;
+        hd0 = drive_get_index(IF_IDE, i, 0);
+        hd1 = drive_get_index(IF_IDE, i, 1);
         isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
-                     bs_table[2 * i], bs_table[2 * i + 1]);
+                     hd0 == -1 ? NULL : drives_table[hd0].bdrv,
+                     hd1 == -1 ? NULL : drives_table[hd1].bdrv);
+    }
 
     /* Network controller */
     /* FIXME: missing NS SONIC DP83932 */
@@ -152,7 +168,14 @@ void mips_pica61_init (int ram_size, int vga_ram_size,
     /* FIXME: missing NCR 53C94 */
 
     /* ISA devices (floppy, serial, parallel) */
-    fdctrl_init(i8259[1], 1, 1, 0x80003000, fd_table);
+
+    for (i = 0; i < MAX_FD; i++) {
+        index = drive_get_index(IF_FLOPPY, 0, i);
+        if (index == -1)
+            continue;
+        fd[i] = drives_table[index].bdrv;
+    }
+    fdctrl_init(i8259[1], 1, 1, 0x80003000, fd);
     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
         if (serial_hds[i]) {
             serial_mm_init(serial_base[i], 0, i8259[serial_irq[i]], serial_hds[i], 1);
diff --git a/hw/mips_r4k.c b/hw/mips_r4k.c
index d090a2a1cc..b1c0433f65 100644
--- a/hw/mips_r4k.c
+++ b/hw/mips_r4k.c
@@ -25,6 +25,8 @@
 
 #define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
 
+#define MAX_IDE_BUS 2
+
 static const int ide_iobase[2] = { 0x1f0, 0x170 };
 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
 static const int ide_irq[2] = { 14, 15 };
@@ -155,6 +157,8 @@ void mips_r4k_init (int ram_size, int vga_ram_size,
     RTCState *rtc_state;
     int i;
     qemu_irq *i8259;
+    int index;
+    BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 
     /* init CPUs */
     if (cpu_model == NULL) {
@@ -245,9 +249,23 @@ void mips_r4k_init (int ram_size, int vga_ram_size,
         }
     }
 
-    for(i = 0; i < 2; i++)
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+
+    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;
+    }
+
+    for(i = 0; i < MAX_IDE_BUS; i++)
         isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
-                     bs_table[2 * i], bs_table[2 * i + 1]);
+                     hd[MAX_IDE_DEVS * i],
+		     hd[MAX_IDE_DEVS * i + 1]);
 
     i8042_init(i8259[1], i8259[12], 0x60);
     ds1225y_init(0x9000, "nvram");
diff --git a/hw/nand.c b/hw/nand.c
index 925583ae45..ea353ed957 100644
--- a/hw/nand.c
+++ b/hw/nand.c
@@ -444,14 +444,20 @@ struct nand_flash_s *nand_init(int manf_id, int chip_id)
 {
     int pagesize;
     struct nand_flash_s *s;
+    int index;
 
     if (nand_flash_ids[chip_id].size == 0) {
         cpu_abort(cpu_single_env, "%s: Unsupported NAND chip ID.\n",
                         __FUNCTION__);
     }
+    index = drive_get_index(IF_MTD, 0, 0);
+    if (index == -1) {
+        cpu_abort(cpu_single_env, "%s: missing MTD device\n",
+                        __FUNCTION__);
+    }
 
     s = (struct nand_flash_s *) qemu_mallocz(sizeof(struct nand_flash_s));
-    s->bdrv = mtd_bdrv;
+    s->bdrv = drives_table[index].bdrv;
     s->manf_id = manf_id;
     s->chip_id = chip_id;
     s->size = nand_flash_ids[s->chip_id].size << 20;
diff --git a/hw/omap.c b/hw/omap.c
index c8d5064f63..c56cd2423d 100644
--- a/hw/omap.c
+++ b/hw/omap.c
@@ -4901,6 +4901,7 @@ struct omap_mpu_state_s *omap310_mpu_init(unsigned long sdram_size,
     struct omap_mpu_state_s *s = (struct omap_mpu_state_s *)
             qemu_mallocz(sizeof(struct omap_mpu_state_s));
     ram_addr_t imif_base, emiff_base;
+    int index;
     
     if (!core)
         core = "ti925t";
@@ -4997,7 +4998,13 @@ struct omap_mpu_state_s *omap310_mpu_init(unsigned long sdram_size,
     omap_dpll_init(&s->dpll[1], 0xfffed000, omap_findclk(s, "dpll2"));
     omap_dpll_init(&s->dpll[2], 0xfffed100, omap_findclk(s, "dpll3"));
 
-    s->mmc = omap_mmc_init(0xfffb7800, sd_bdrv, s->irq[1][OMAP_INT_OQN],
+    index = drive_get_index(IF_SD, 0, 0);
+    if (index == -1) {
+        fprintf(stderr, "qemu: missing SecureDigital device\n");
+        exit(1);
+    }
+    s->mmc = omap_mmc_init(0xfffb7800, drives_table[index].bdrv,
+                    s->irq[1][OMAP_INT_OQN],
                     &s->drq[OMAP_DMA_MMC_TX], omap_findclk(s, "mmc_ck"));
 
     s->mpuio = omap_mpuio_init(0xfffb5000,
diff --git a/hw/pc.c b/hw/pc.c
index 7049c44a12..5f79cda98f 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -42,6 +42,8 @@
 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables.  */
 #define ACPI_DATA_SIZE       0x10000
 
+#define MAX_IDE_BUS 2
+
 static fdctrl_t *floppy_controller;
 static RTCState *rtc_state;
 static PITState *pit;
@@ -381,8 +383,10 @@ static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip)
 {
     uint8_t bootsect[512], *p;
     int i;
+    int hda;
 
-    if (bs_table[0] == NULL) {
+    hda = drive_get_index(IF_IDE, 0, 0);
+    if (hda == -1) {
 	fprintf(stderr, "A disk image must be given for 'hda' when booting "
 		"a Linux kernel\n");
 	exit(1);
@@ -391,7 +395,7 @@ static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip)
     memset(bootsect, 0, sizeof(bootsect));
 
     /* Copy the MSDOS partition table if possible */
-    bdrv_read(bs_table[0], 0, bootsect, 1);
+    bdrv_read(drives_table[hda].bdrv, 0, bootsect, 1);
 
     /* Make sure we have a partition signature */
     bootsect[510] = 0x55;
@@ -428,7 +432,7 @@ static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip)
     *p++ = segs[1];		/* CS */
     *p++ = segs[1] >> 8;
 
-    bdrv_set_boot_sector(bs_table[0], bootsect, sizeof(bootsect));
+    bdrv_set_boot_sector(drives_table[hda].bdrv, bootsect, sizeof(bootsect));
 }
 
 static int load_kernel(const char *filename, uint8_t *addr,
@@ -709,6 +713,9 @@ static void pc_init1(int ram_size, int vga_ram_size,
     NICInfo *nd;
     qemu_irq *cpu_irq;
     qemu_irq *i8259;
+    int index;
+    BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+    BlockDriverState *fd[MAX_FD];
 
     linux_boot = (kernel_filename != NULL);
 
@@ -926,12 +933,25 @@ static void pc_init1(int ram_size, int vga_ram_size,
         }
     }
 
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+
+    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;
+    }
+
     if (pci_enabled) {
-        pci_piix3_ide_init(pci_bus, bs_table, piix3_devfn + 1, i8259);
+        pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1, i8259);
     } else {
-        for(i = 0; i < 2; i++) {
+        for(i = 0; i < MAX_IDE_BUS; i++) {
             isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
-                         bs_table[2 * i], bs_table[2 * i + 1]);
+	                 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
         }
     }
 
@@ -941,9 +961,16 @@ static void pc_init1(int ram_size, int vga_ram_size,
     audio_init(pci_enabled ? pci_bus : NULL, i8259);
 #endif
 
-    floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd_table);
+    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;
+    }
+    floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd);
 
-    cmos_init(ram_size, boot_device, bs_table);
+    cmos_init(ram_size, boot_device, hd);
 
     if (pci_enabled && usb_enabled) {
         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
@@ -963,23 +990,24 @@ static void pc_init1(int ram_size, int vga_ram_size,
     if (i440fx_state) {
         i440fx_init_memory_mappings(i440fx_state);
     }
-#if 0
-    /* ??? Need to figure out some way for the user to
-       specify SCSI devices.  */
+
     if (pci_enabled) {
+	int max_bus;
+        int bus, unit;
         void *scsi;
-        BlockDriverState *bdrv;
 
-        scsi = lsi_scsi_init(pci_bus, -1);
-        bdrv = bdrv_new("scsidisk");
-        bdrv_open(bdrv, "scsi_disk.img", 0);
-        lsi_scsi_attach(scsi, bdrv, -1);
-        bdrv = bdrv_new("scsicd");
-        bdrv_open(bdrv, "scsi_cd.iso", 0);
-        bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM);
-        lsi_scsi_attach(scsi, bdrv, -1);
+        max_bus = drive_get_max_bus(IF_SCSI);
+
+	for (bus = 0; bus <= max_bus; bus++) {
+            scsi = lsi_scsi_init(pci_bus, -1);
+            for (unit = 0; unit < LSI_MAX_DEVS; unit++) {
+	        index = drive_get_index(IF_SCSI, bus, unit);
+		if (index == -1)
+		    continue;
+		lsi_scsi_attach(scsi, drives_table[index].bdrv, unit);
+	    }
+        }
     }
-#endif
 }
 
 static void pc_init_pci(int ram_size, int vga_ram_size,
diff --git a/hw/pci.h b/hw/pci.h
index 075754514a..96bb2136de 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -97,6 +97,7 @@ PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint32_t id,
                         pci_map_irq_fn map_irq, const char *name);
 
 /* lsi53c895a.c */
+#define LSI_MAX_DEVS 7
 void lsi_scsi_attach(void *opaque, BlockDriverState *bd, int id);
 void *lsi_scsi_init(PCIBus *bus, int devfn);
 
diff --git a/hw/ppc405_boards.c b/hw/ppc405_boards.c
index 91fecc877b..597f9b58a6 100644
--- a/hw/ppc405_boards.c
+++ b/hw/ppc405_boards.c
@@ -197,6 +197,7 @@ static void ref405ep_init (int ram_size, int vga_ram_size,
     int linux_boot;
     int fl_idx, fl_sectors, len;
     int ppc_boot_device = boot_device[0];
+    int index;
 
     /* XXX: fix this */
     ram_bases[0] = 0x00000000;
@@ -223,17 +224,18 @@ static void ref405ep_init (int ram_size, int vga_ram_size,
     bios_offset = sram_offset + sram_size;
     fl_idx = 0;
 #ifdef USE_FLASH_BIOS
-    if (pflash_table[fl_idx] != NULL) {
-        bios_size = bdrv_getlength(pflash_table[fl_idx]);
+    index = drive_get_index(IF_PFLASH, 0, fl_idx);
+    if (index != -1) {
+        bios_size = bdrv_getlength(drives_table[index].bdrv);
         fl_sectors = (bios_size + 65535) >> 16;
 #ifdef DEBUG_BOARD_INIT
         printf("Register parallel flash %d size " ADDRX " at offset %08lx "
                " addr " ADDRX " '%s' %d\n",
                fl_idx, bios_size, bios_offset, -bios_size,
-               bdrv_get_device_name(pflash_table[fl_idx]), fl_sectors);
+               bdrv_get_device_name(drives_table[index].bdrv), fl_sectors);
 #endif
         pflash_register((uint32_t)(-bios_size), bios_offset,
-                        pflash_table[fl_idx], 65536, fl_sectors, 2,
+                        drives_table[index].bdrv, 65536, fl_sectors, 2,
                         0x0001, 0x22DA, 0x0000, 0x0000);
         fl_idx++;
     } else
@@ -519,6 +521,7 @@ static void taihu_405ep_init(int ram_size, int vga_ram_size,
     int linux_boot;
     int fl_idx, fl_sectors;
     int ppc_boot_device = boot_device[0];
+    int index;
 
     /* RAM is soldered to the board so the size cannot be changed */
     ram_bases[0] = 0x00000000;
@@ -536,8 +539,9 @@ static void taihu_405ep_init(int ram_size, int vga_ram_size,
 #endif
     fl_idx = 0;
 #if defined(USE_FLASH_BIOS)
-    if (pflash_table[fl_idx] != NULL) {
-        bios_size = bdrv_getlength(pflash_table[fl_idx]);
+    index = drive_get_index(IF_PFLASH, 0, fl_idx);
+    if (index != -1) {
+        bios_size = bdrv_getlength(drives_table[index].bdrv);
         /* XXX: should check that size is 2MB */
         //        bios_size = 2 * 1024 * 1024;
         fl_sectors = (bios_size + 65535) >> 16;
@@ -545,10 +549,10 @@ static void taihu_405ep_init(int ram_size, int vga_ram_size,
         printf("Register parallel flash %d size " ADDRX " at offset %08lx "
                " addr " ADDRX " '%s' %d\n",
                fl_idx, bios_size, bios_offset, -bios_size,
-               bdrv_get_device_name(pflash_table[fl_idx]), fl_sectors);
+               bdrv_get_device_name(drives_table[index].bdrv), fl_sectors);
 #endif
         pflash_register((uint32_t)(-bios_size), bios_offset,
-                        pflash_table[fl_idx], 65536, fl_sectors, 4,
+                        drives_table[index].bdrv, 65536, fl_sectors, 4,
                         0x0001, 0x22DA, 0x0000, 0x0000);
         fl_idx++;
     } else
@@ -571,8 +575,9 @@ static void taihu_405ep_init(int ram_size, int vga_ram_size,
     }
     bios_offset += bios_size;
     /* Register Linux flash */
-    if (pflash_table[fl_idx] != NULL) {
-        bios_size = bdrv_getlength(pflash_table[fl_idx]);
+    index = drive_get_index(IF_PFLASH, 0, fl_idx);
+    if (index != -1) {
+        bios_size = bdrv_getlength(drives_table[index].bdrv);
         /* XXX: should check that size is 32MB */
         bios_size = 32 * 1024 * 1024;
         fl_sectors = (bios_size + 65535) >> 16;
@@ -580,9 +585,9 @@ static void taihu_405ep_init(int ram_size, int vga_ram_size,
         printf("Register parallel flash %d size " ADDRX " at offset %08lx "
                " addr " ADDRX " '%s'\n",
                fl_idx, bios_size, bios_offset, (target_ulong)0xfc000000,
-               bdrv_get_device_name(pflash_table[fl_idx]));
+               bdrv_get_device_name(drives_table[index].bdrv));
 #endif
-        pflash_register(0xfc000000, bios_offset, pflash_table[fl_idx],
+        pflash_register(0xfc000000, bios_offset, drives_table[index].bdrv,
                         65536, fl_sectors, 4,
                         0x0001, 0x22DA, 0x0000, 0x0000);
         fl_idx++;
diff --git a/hw/ppc_chrp.c b/hw/ppc_chrp.c
index 1e3e6c4f6c..4437a1038e 100644
--- a/hw/ppc_chrp.c
+++ b/hw/ppc_chrp.c
@@ -32,6 +32,8 @@
 #include "sysemu.h"
 #include "boards.h"
 
+#define MAX_IDE_BUS 2
+
 /* UniN device */
 static void unin_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
 {
@@ -81,6 +83,8 @@ static void ppc_core99_init (int ram_size, int vga_ram_size,
     int pic_mem_index, dbdma_mem_index, cuda_mem_index;
     int ide_mem_index[2];
     int ppc_boot_device;
+    int index;
+    BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 
     linux_boot = (kernel_filename != NULL);
 
@@ -266,11 +270,22 @@ static void ppc_core99_init (int ram_size, int vga_ram_size,
             nd_table[i].model = "ne2k_pci";
         pci_nic_init(pci_bus, &nd_table[i], -1);
     }
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+    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;
+    }
 #if 1
-    ide_mem_index[0] = pmac_ide_init(&bs_table[0], pic[0x13]);
-    ide_mem_index[1] = pmac_ide_init(&bs_table[2], pic[0x14]);
+    ide_mem_index[0] = pmac_ide_init(&hd[0], pic[0x13]);
+    ide_mem_index[1] = pmac_ide_init(&hd[2], pic[0x14]);
 #else
-    pci_cmd646_ide_init(pci_bus, &bs_table[0], 0);
+    pci_cmd646_ide_init(pci_bus, &hd[0], 0);
 #endif
     /* cuda also initialize ADB */
     cuda_init(&cuda_mem_index, pic[0x19]);
diff --git a/hw/ppc_oldworld.c b/hw/ppc_oldworld.c
index 53edcd5c66..6b4f202d01 100644
--- a/hw/ppc_oldworld.c
+++ b/hw/ppc_oldworld.c
@@ -33,6 +33,8 @@
 #include "pci.h"
 #include "boards.h"
 
+#define MAX_IDE_BUS 2
+
 /* temporary frame buffer OSI calls for the video.x driver. The right
    solution is to modify the driver to use VGA PCI I/Os */
 /* XXX: to be removed. This is no way related to emulation */
@@ -123,6 +125,8 @@ static void ppc_heathrow_init (int ram_size, int vga_ram_size,
     int pic_mem_index, nvram_mem_index, dbdma_mem_index, cuda_mem_index;
     int ide_mem_index[2];
     int ppc_boot_device;
+    BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+    int index;
 
     linux_boot = (kernel_filename != NULL);
 
@@ -292,10 +296,37 @@ static void ppc_heathrow_init (int ram_size, int vga_ram_size,
     }
 
     /* First IDE channel is a CMD646 on the PCI bus */
-    pci_cmd646_ide_init(pci_bus, &bs_table[0], 0);
+
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+    index = drive_get_index(IF_IDE, 0, 0);
+    if (index == -1)
+        hd[0] = NULL;
+    else
+        hd[0] =  drives_table[index].bdrv;
+    index = drive_get_index(IF_IDE, 0, 1);
+    if (index == -1)
+        hd[1] = NULL;
+    else
+        hd[1] =  drives_table[index].bdrv;
+    hd[3] = hd[2] = NULL;
+    pci_cmd646_ide_init(pci_bus, hd, 0);
+
     /* Second IDE channel is a MAC IDE on the MacIO bus */
+    index = drive_get_index(IF_IDE, 1, 0);
+    if (index == -1)
+        hd[0] = NULL;
+    else
+        hd[0] =  drives_table[index].bdrv;
+    index = drive_get_index(IF_IDE, 1, 1);
+    if (index == -1)
+        hd[1] = NULL;
+    else
+        hd[1] =  drives_table[index].bdrv;
     ide_mem_index[0] = -1;
-    ide_mem_index[1] = pmac_ide_init(&bs_table[2], pic[0x0D]);
+    ide_mem_index[1] = pmac_ide_init(hd, pic[0x0D]);
 
     /* cuda also initialize ADB */
     cuda_init(&cuda_mem_index, pic[0x12]);
diff --git a/hw/ppc_prep.c b/hw/ppc_prep.c
index 8e939760d3..c42688e427 100644
--- a/hw/ppc_prep.c
+++ b/hw/ppc_prep.c
@@ -38,6 +38,8 @@
 /* SMP is not enabled, for now */
 #define MAX_CPUS 1
 
+#define MAX_IDE_BUS 2
+
 #define BIOS_FILENAME "ppc_rom.bin"
 #define KERNEL_LOAD_ADDR 0x01000000
 #define INITRD_LOAD_ADDR 0x01800000
@@ -551,6 +553,9 @@ static void ppc_prep_init (int ram_size, int vga_ram_size,
     PCIBus *pci_bus;
     qemu_irq *i8259;
     int ppc_boot_device;
+    int index;
+    BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+    BlockDriverState *fd[MAX_FD];
 
     sysctrl = qemu_mallocz(sizeof(sysctrl_t));
     if (sysctrl == NULL)
@@ -675,16 +680,37 @@ static void ppc_prep_init (int ram_size, int vga_ram_size,
         }
     }
 
-    for(i = 0; i < 2; i++) {
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+
+    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;
+    }
+
+    for(i = 0; i < MAX_IDE_BUS; i++) {
         isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
-                     bs_table[2 * i], bs_table[2 * i + 1]);
+                     hd[2 * i],
+		     hd[2 * i + 1]);
     }
     i8042_init(i8259[1], i8259[12], 0x60);
     DMA_init(1);
     //    AUD_init();
     //    SB16_init();
 
-    fdctrl_init(i8259[6], 2, 0, 0x3f0, fd_table);
+    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;
+    }
+    fdctrl_init(i8259[6], 2, 0, 0x3f0, fd);
 
     /* Register speaker port */
     register_ioport_read(0x61, 1, 1, speaker_ioport_read, NULL);
diff --git a/hw/pxa2xx.c b/hw/pxa2xx.c
index 00cb2370ae..a67ffefd0d 100644
--- a/hw/pxa2xx.c
+++ b/hw/pxa2xx.c
@@ -2036,6 +2036,7 @@ struct pxa2xx_state_s *pxa270_init(unsigned int sdram_size,
     struct pxa2xx_state_s *s;
     struct pxa2xx_ssp_s *ssp;
     int iomemtype, i;
+    int index;
     s = (struct pxa2xx_state_s *) qemu_mallocz(sizeof(struct pxa2xx_state_s));
 
     if (revision && strncmp(revision, "pxa27", 5)) {
@@ -2070,8 +2071,13 @@ struct pxa2xx_state_s *pxa270_init(unsigned int sdram_size,
 
     s->gpio = pxa2xx_gpio_init(0x40e00000, s->env, s->pic, 121);
 
-    s->mmc = pxa2xx_mmci_init(0x41100000, sd_bdrv, s->pic[PXA2XX_PIC_MMC],
-                              s->dma);
+    index = drive_get_index(IF_SD, 0, 0);
+    if (index == -1) {
+        fprintf(stderr, "qemu: missing SecureDigital device\n");
+        exit(1);
+    }
+    s->mmc = pxa2xx_mmci_init(0x41100000, drives_table[index].bdrv,
+                              s->pic[PXA2XX_PIC_MMC], s->dma);
 
     for (i = 0; pxa270_serial[i].io_base; i ++)
         if (serial_hds[i])
@@ -2160,6 +2166,7 @@ struct pxa2xx_state_s *pxa255_init(unsigned int sdram_size,
     struct pxa2xx_state_s *s;
     struct pxa2xx_ssp_s *ssp;
     int iomemtype, i;
+    int index;
 
     s = (struct pxa2xx_state_s *) qemu_mallocz(sizeof(struct pxa2xx_state_s));
 
@@ -2187,8 +2194,13 @@ struct pxa2xx_state_s *pxa255_init(unsigned int sdram_size,
 
     s->gpio = pxa2xx_gpio_init(0x40e00000, s->env, s->pic, 85);
 
-    s->mmc = pxa2xx_mmci_init(0x41100000, sd_bdrv, s->pic[PXA2XX_PIC_MMC],
-                              s->dma);
+    index = drive_get_index(IF_SD, 0, 0);
+    if (index == -1) {
+        fprintf(stderr, "qemu: missing SecureDigital device\n");
+        exit(1);
+    }
+    s->mmc = pxa2xx_mmci_init(0x41100000, drives_table[index].bdrv,
+                              s->pic[PXA2XX_PIC_MMC], s->dma);
 
     for (i = 0; pxa255_serial[i].io_base; i ++)
         if (serial_hds[i])
diff --git a/hw/realview.c b/hw/realview.c
index 7e8586f4a3..29579d87b0 100644
--- a/hw/realview.c
+++ b/hw/realview.c
@@ -32,6 +32,7 @@ static void realview_init(int ram_size, int vga_ram_size,
     int done_smc = 0;
     qemu_irq cpu_irq[4];
     int ncpu;
+    int index;
 
     if (!cpu_model)
         cpu_model = "arm926";
@@ -89,7 +90,12 @@ static void realview_init(int ram_size, int vga_ram_size,
 
     pl110_init(ds, 0x10020000, pic[23], 1);
 
-    pl181_init(0x10005000, sd_bdrv, pic[17], pic[18]);
+    index = drive_get_index(IF_SD, 0, 0);
+    if (index == -1) {
+        fprintf(stderr, "qemu: missing SecureDigital card\n");
+        exit(1);
+    }
+    pl181_init(0x10005000, drives_table[index].bdrv, pic[17], pic[18]);
 
     pl031_init(0x10017000, pic[10]);
 
@@ -97,11 +103,16 @@ static void realview_init(int ram_size, int vga_ram_size,
     if (usb_enabled) {
         usb_ohci_init_pci(pci_bus, 3, -1);
     }
+    if (drive_get_max_bus(IF_SCSI) > 0) {
+        fprintf(stderr, "qemu: too many SCSI bus\n");
+        exit(1);
+    }
     scsi_hba = lsi_scsi_init(pci_bus, -1);
-    for (n = 0; n < MAX_DISKS; n++) {
-        if (bs_table[n]) {
-            lsi_scsi_attach(scsi_hba, bs_table[n], n);
-        }
+    for (n = 0; n < LSI_MAX_DEVS; n++) {
+        index = drive_get_index(IF_SCSI, 0, n);
+        if (index == -1)
+            continue;
+        lsi_scsi_attach(scsi_hba, drives_table[index].bdrv, n);
     }
     for(n = 0; n < nb_nics; n++) {
         nd = &nd_table[n];
diff --git a/hw/spitz.c b/hw/spitz.c
index 461a60dd83..159c633789 100644
--- a/hw/spitz.c
+++ b/hw/spitz.c
@@ -940,9 +940,14 @@ static void spitz_ssp_attach(struct pxa2xx_state_s *cpu)
 static void spitz_microdrive_attach(struct pxa2xx_state_s *cpu)
 {
     struct pcmcia_card_s *md;
-    BlockDriverState *bs = bs_table[0];
+    int index;
+    BlockDriverState *bs;
 
-    if (bs && bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {
+    index = drive_get_index(IF_IDE, 0, 0);
+    if (index == -1)
+        return;
+    bs = drives_table[index].bdrv;
+    if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {
         md = dscm1xxxx_init(bs);
         pxa2xx_pcmcia_attach(cpu->pcmcia[1], md);
     }
diff --git a/hw/stellaris.c b/hw/stellaris.c
index 5f06388a94..2fb927b614 100644
--- a/hw/stellaris.c
+++ b/hw/stellaris.c
@@ -1133,9 +1133,11 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
             void * oled;
             void * sd;
             void *ssi_bus;
+            int index;
 
             oled = ssd0323_init(ds, &gpio_out[GPIO_C][7]);
-            sd = ssi_sd_init(sd_bdrv);
+            index = drive_get_index(IF_SD, 0, 0);
+            sd = ssi_sd_init(drives_table[index].bdrv);
 
             ssi_bus = stellaris_ssi_bus_init(&gpio_out[GPIO_D][0],
                                              ssi_sd_xfer, sd,
diff --git a/hw/sun4m.c b/hw/sun4m.c
index 1f78ff8935..428519a5a5 100644
--- a/hw/sun4m.c
+++ b/hw/sun4m.c
@@ -338,6 +338,8 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int RAM_size,
     unsigned long prom_offset, kernel_size;
     int ret;
     char buf[1024];
+    BlockDriverState *fd[MAX_FD];
+    int index;
 
     /* init CPUs */
     if (!cpu_model)
@@ -440,16 +442,29 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int RAM_size,
     slavio_serial_init(hwdef->serial_base, slavio_irq[hwdef->ser_irq],
                        serial_hds[1], serial_hds[0]);
 
-    if (hwdef->fd_base != (target_phys_addr_t)-1)
-        sun4m_fdctrl_init(slavio_irq[hwdef->fd_irq], hwdef->fd_base, fd_table);
+    if (hwdef->fd_base != (target_phys_addr_t)-1) {
+        /* there is zero or one floppy drive */
+        fd[1] = fd[0] = NULL;
+        index = drive_get_index(IF_FLOPPY, 0, 0);
+        if (index != -1)
+            fd[0] = drives_table[index].bdrv;
 
-    main_esp = esp_init(bs_table, hwdef->esp_base, espdma, *espdma_irq,
+        sun4m_fdctrl_init(slavio_irq[hwdef->fd_irq], hwdef->fd_base, fd);
+    }
+
+    if (drive_get_max_bus(IF_SCSI) > 0) {
+        fprintf(stderr, "qemu: too many SCSI bus\n");
+        exit(1);
+    }
+
+    main_esp = esp_init(hwdef->esp_base, espdma, *espdma_irq,
                         esp_reset);
 
-    for (i = 0; i < MAX_DISKS; i++) {
-        if (bs_table[i]) {
-            esp_scsi_attach(main_esp, bs_table[i], i);
-        }
+    for (i = 0; i < ESP_MAX_DEVS; i++) {
+        index = drive_get_index(IF_SCSI, 0, i);
+        if (index == -1)
+            continue;
+        esp_scsi_attach(main_esp, drives_table[index].bdrv, i);
     }
 
     slavio_misc = slavio_misc_init(hwdef->slavio_base, hwdef->power_base,
diff --git a/hw/sun4m.h b/hw/sun4m.h
index 12fa83223b..e0ae5faf97 100644
--- a/hw/sun4m.h
+++ b/hw/sun4m.h
@@ -49,8 +49,9 @@ void *slavio_misc_init(target_phys_addr_t base, target_phys_addr_t power_base,
 void slavio_set_power_fail(void *opaque, int power_failing);
 
 /* esp.c */
+#define ESP_MAX_DEVS 7
 void esp_scsi_attach(void *opaque, BlockDriverState *bd, int id);
-void *esp_init(BlockDriverState **bd, target_phys_addr_t espaddr,
+void *esp_init(target_phys_addr_t espaddr,
                void *dma_opaque, qemu_irq irq, qemu_irq *reset);
 
 /* cs4231.c */
diff --git a/hw/sun4u.c b/hw/sun4u.c
index 6fb7faeb38..183f64a5ac 100644
--- a/hw/sun4u.c
+++ b/hw/sun4u.c
@@ -43,6 +43,7 @@
 #define VGA_BASE             (APB_MEM_BASE + 0x400000ULL)
 #define PROM_FILENAME        "openbios-sparc64"
 #define NVRAM_SIZE           0x2000
+#define MAX_IDE_BUS          2
 
 /* TSC handling */
 
@@ -240,6 +241,9 @@ static void sun4u_init(int ram_size, int vga_ram_size,
     PCIBus *pci_bus;
     QEMUBH *bh;
     qemu_irq *irq;
+    int index;
+    BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+    BlockDriverState *fd[MAX_FD];
 
     linux_boot = (kernel_filename != NULL);
 
@@ -342,11 +346,30 @@ static void sun4u_init(int ram_size, int vga_ram_size,
     }
 
     irq = qemu_allocate_irqs(dummy_cpu_set_irq, NULL, 32);
-    // XXX pci_cmd646_ide_init(pci_bus, bs_table, 1);
-    pci_piix3_ide_init(pci_bus, bs_table, -1, irq);
+    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+        fprintf(stderr, "qemu: too many IDE bus\n");
+        exit(1);
+    }
+    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;
+    }
+
+    // XXX pci_cmd646_ide_init(pci_bus, hd, 1);
+    pci_piix3_ide_init(pci_bus, hd, -1, irq);
     /* FIXME: wire up interrupts.  */
     i8042_init(NULL/*1*/, NULL/*12*/, 0x60);
-    floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd_table);
+    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;
+    }
+    floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd);
     nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59);
     sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", ram_size, boot_devices,
                          KERNEL_LOAD_ADDR, kernel_size,
diff --git a/hw/versatilepb.c b/hw/versatilepb.c
index 66e11bf735..da6e4ec330 100644
--- a/hw/versatilepb.c
+++ b/hw/versatilepb.c
@@ -171,6 +171,7 @@ static void versatile_init(int ram_size, int vga_ram_size,
     NICInfo *nd;
     int n;
     int done_smc = 0;
+    int index;
 
     if (!cpu_model)
         cpu_model = "arm926";
@@ -206,11 +207,16 @@ static void versatile_init(int ram_size, int vga_ram_size,
     if (usb_enabled) {
         usb_ohci_init_pci(pci_bus, 3, -1);
     }
+    if (drive_get_max_bus(IF_SCSI) > 0) {
+        fprintf(stderr, "qemu: too many SCSI bus\n");
+        exit(1);
+    }
     scsi_hba = lsi_scsi_init(pci_bus, -1);
-    for (n = 0; n < MAX_DISKS; n++) {
-        if (bs_table[n]) {
-            lsi_scsi_attach(scsi_hba, bs_table[n], n);
-        }
+    for (n = 0; n < LSI_MAX_DEVS; n++) {
+        index = drive_get_index(IF_SCSI, 0, n);
+        if (index == -1)
+            continue;
+        lsi_scsi_attach(scsi_hba, drives_table[index].bdrv, n);
     }
 
     pl011_init(0x101f1000, pic[12], serial_hds[0], PL011_ARM);
@@ -226,7 +232,13 @@ static void versatile_init(int ram_size, int vga_ram_size,
        that includes hardware cursor support from the PL111.  */
     pl110_init(ds, 0x10120000, pic[16], 1);
 
-    pl181_init(0x10005000, sd_bdrv, sic[22], sic[1]);
+    index = drive_get_index(IF_SD, 0, 0);
+    if (index == -1) {
+        fprintf(stderr, "qemu: missing SecureDigital card\n");
+        exit(1);
+    }
+
+    pl181_init(0x10005000, drives_table[index].bdrv, sic[22], sic[1]);
 #if 0
     /* Disabled because there's no way of specifying a block device.  */
     pl181_init(0x1000b000, NULL, sic, 23, 2);