]> git.proxmox.com Git - qemu.git/blobdiff - hw/sun4m.c
user: Restore debug usage message for '-d ?' in user mode emulation
[qemu.git] / hw / sun4m.c
index 41fb84ea5b01accf396821a1e2a5f40c3e3bbdff..df3aa321caccd26856ab0aa72e959546cb1ea758 100644 (file)
 #include "net.h"
 #include "boards.h"
 #include "firmware_abi.h"
-#include "scsi.h"
+#include "esp.h"
 #include "pc.h"
 #include "isa.h"
 #include "fw_cfg.h"
 #include "escc.h"
+#include "empty_slot.h"
 #include "qdev-addr.h"
-
-//#define DEBUG_IRQ
+#include "loader.h"
+#include "elf.h"
+#include "blockdev.h"
+#include "trace.h"
 
 /*
  * Sun4m architecture was used in the following machines:
  * See for example: http://www.sunhelp.org/faq/sunref1.html
  */
 
-#ifdef DEBUG_IRQ
-#define DPRINTF(fmt, ...)                                       \
-    do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF(fmt, ...)
-#endif
-
 #define KERNEL_LOAD_ADDR     0x00004000
 #define CMDLINE_ADDR         0x007ff000
 #define INITRD_LOAD_ADDR     0x00800000
 
 #define MAX_CPUS 16
 #define MAX_PILS 16
+#define MAX_VSIMMS 4
 
 #define ESCC_CLOCK 4915200
 
 struct sun4m_hwdef {
-    target_phys_addr_t iommu_base, slavio_base;
+    target_phys_addr_t iommu_base, iommu_pad_base, iommu_pad_len, slavio_base;
     target_phys_addr_t intctl_base, counter_base, nvram_base, ms_kb_base;
     target_phys_addr_t serial_base, fd_base;
-    target_phys_addr_t idreg_base, dma_base, esp_base, le_base;
+    target_phys_addr_t afx_base, idreg_base, dma_base, esp_base, le_base;
     target_phys_addr_t tcx_base, cs_base, apc_base, aux1_base, aux2_base;
+    target_phys_addr_t bpp_base, dbri_base, sx_base;
+    struct {
+        target_phys_addr_t reg_base, vram_base;
+    } vsimm[MAX_VSIMMS];
     target_phys_addr_t ecc_base;
     uint32_t ecc_version;
-    long vram_size, nvram_size;
     uint8_t nvram_machine_id;
     uint16_t machine_id;
     uint32_t iommu_version;
@@ -115,7 +115,6 @@ struct sun4d_hwdef {
     target_phys_addr_t ledma_base, le_base;
     target_phys_addr_t tcx_base;
     target_phys_addr_t sbi_base;
-    unsigned long vram_size, nvram_size;
     uint8_t nvram_machine_id;
     uint16_t machine_id;
     uint32_t iounit_version;
@@ -129,7 +128,6 @@ struct sun4c_hwdef {
     target_phys_addr_t serial_base, fd_base;
     target_phys_addr_t idreg_base, dma_base, esp_base, le_base;
     target_phys_addr_t tcx_base, aux1_base;
-    long vram_size, nvram_size;
     uint8_t nvram_machine_id;
     uint16_t machine_id;
     uint32_t iommu_version;
@@ -152,7 +150,11 @@ int DMA_write_memory (int nchan, void *buf, int pos, int size)
 void DMA_hold_DREQ (int nchan) {}
 void DMA_release_DREQ (int nchan) {}
 void DMA_schedule(int nchan) {}
-void DMA_init (int high_page_enable) {}
+
+void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit)
+{
+}
+
 void DMA_register_channel (int nchan,
                            DMA_transfer_handler transfer_handler,
                            void *opaque)
@@ -165,9 +167,9 @@ static int fw_cfg_boot_set(void *opaque, const char *boot_device)
     return 0;
 }
 
-static void nvram_init(m48t59_t *nvram, uint8_t *macaddr, const char *cmdline,
-                       const char *boot_devices, ram_addr_t RAM_size,
-                       uint32_t kernel_size,
+static void nvram_init(M48t59State *nvram, uint8_t *macaddr,
+                       const char *cmdline, const char *boot_devices,
+                       ram_addr_t RAM_size, uint32_t kernel_size,
                        int width, int height, int depth,
                        int nvram_machine_id, const char *arch)
 {
@@ -212,7 +214,7 @@ static void nvram_init(m48t59_t *nvram, uint8_t *macaddr, const char *cmdline,
         m48t59_write(nvram, i, image[i]);
 }
 
-static void *slavio_intctl;
+static DeviceState *slavio_intctl;
 
 void pic_info(Monitor *mon)
 {
@@ -238,30 +240,36 @@ void cpu_check_irqs(CPUState *env)
 
                 env->interrupt_index = TT_EXTINT | i;
                 if (old_interrupt != env->interrupt_index) {
-                    DPRINTF("Set CPU IRQ %d\n", i);
+                    trace_sun4m_cpu_interrupt(i);
                     cpu_interrupt(env, CPU_INTERRUPT_HARD);
                 }
                 break;
             }
         }
     } else if (!env->pil_in && (env->interrupt_index & ~15) == TT_EXTINT) {
-        DPRINTF("Reset CPU IRQ %d\n", env->interrupt_index & 15);
+        trace_sun4m_cpu_reset_interrupt(env->interrupt_index & 15);
         env->interrupt_index = 0;
         cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
     }
 }
 
+static void cpu_kick_irq(CPUState *env)
+{
+    env->halted = 0;
+    cpu_check_irqs(env);
+    qemu_cpu_kick(env);
+}
+
 static void cpu_set_irq(void *opaque, int irq, int level)
 {
     CPUState *env = opaque;
 
     if (level) {
-        DPRINTF("Raise CPU IRQ %d\n", irq);
-        env->halted = 0;
+        trace_sun4m_cpu_set_irq_raise(irq);
         env->pil_in |= 1 << irq;
-        cpu_check_irqs(env);
+        cpu_kick_irq(env);
     } else {
-        DPRINTF("Lower CPU IRQ %d\n", irq);
+        trace_sun4m_cpu_set_irq_lower(irq);
         env->pil_in &= ~(1 << irq);
         cpu_check_irqs(env);
     }
@@ -271,13 +279,6 @@ static void dummy_cpu_set_irq(void *opaque, int irq, int level)
 {
 }
 
-static void *slavio_misc;
-
-void qemu_system_powerdown(void)
-{
-    slavio_set_power_fail(slavio_misc, 1);
-}
-
 static void main_cpu_reset(void *opaque)
 {
     CPUState *env = opaque;
@@ -300,6 +301,11 @@ static void cpu_halt_signal(void *opaque, int irq, int level)
         cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HALT);
 }
 
+static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
+{
+    return addr - 0xf0000000ULL;
+}
+
 static unsigned long sun4m_load_kernel(const char *kernel_filename,
                                        const char *initrd_filename,
                                        ram_addr_t RAM_size)
@@ -307,16 +313,25 @@ static unsigned long sun4m_load_kernel(const char *kernel_filename,
     int linux_boot;
     unsigned int i;
     long initrd_size, kernel_size;
+    uint8_t *ptr;
 
     linux_boot = (kernel_filename != NULL);
 
     kernel_size = 0;
     if (linux_boot) {
-        kernel_size = load_elf(kernel_filename, -0xf0000000ULL, NULL, NULL,
-                               NULL);
+        int bswap_needed;
+
+#ifdef BSWAP_NEEDED
+        bswap_needed = 1;
+#else
+        bswap_needed = 0;
+#endif
+        kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
+                               NULL, NULL, NULL, 1, ELF_MACHINE, 0);
         if (kernel_size < 0)
             kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
-                                    RAM_size - KERNEL_LOAD_ADDR);
+                                    RAM_size - KERNEL_LOAD_ADDR, bswap_needed,
+                                    TARGET_PAGE_SIZE);
         if (kernel_size < 0)
             kernel_size = load_image_targphys(kernel_filename,
                                               KERNEL_LOAD_ADDR,
@@ -341,9 +356,10 @@ static unsigned long sun4m_load_kernel(const char *kernel_filename,
         }
         if (initrd_size > 0) {
             for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
-                if (ldl_phys(KERNEL_LOAD_ADDR + i) == 0x48647253) { // HdrS
-                    stl_phys(KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
-                    stl_phys(KERNEL_LOAD_ADDR + i + 20, initrd_size);
+                ptr = rom_ptr(KERNEL_LOAD_ADDR + i);
+                if (ldl_p(ptr) == 0x48647253) { // HdrS
+                    stl_p(ptr + 16, INITRD_LOAD_ADDR);
+                    stl_p(ptr + 20, initrd_size);
                     break;
                 }
             }
@@ -359,7 +375,7 @@ static void *iommu_init(target_phys_addr_t addr, uint32_t version, qemu_irq irq)
 
     dev = qdev_create(NULL, "iommu");
     qdev_prop_set_uint32(dev, "version", version);
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     sysbus_connect_irq(s, 0, irq);
     sysbus_mmio_map(s, 0, addr);
@@ -367,36 +383,54 @@ static void *iommu_init(target_phys_addr_t addr, uint32_t version, qemu_irq irq)
     return s;
 }
 
+static void *sparc32_dma_init(target_phys_addr_t daddr, qemu_irq parent_irq,
+                              void *iommu, qemu_irq *dev_irq, int is_ledma)
+{
+    DeviceState *dev;
+    SysBusDevice *s;
+
+    dev = qdev_create(NULL, "sparc32_dma");
+    qdev_prop_set_ptr(dev, "iommu_opaque", iommu);
+    qdev_prop_set_uint32(dev, "is_ledma", is_ledma);
+    qdev_init_nofail(dev);
+    s = sysbus_from_qdev(dev);
+    sysbus_connect_irq(s, 0, parent_irq);
+    *dev_irq = qdev_get_gpio_in(dev, 0);
+    sysbus_mmio_map(s, 0, daddr);
+
+    return s;
+}
+
 static void lance_init(NICInfo *nd, target_phys_addr_t leaddr,
-                       void *dma_opaque, qemu_irq irq, qemu_irq *reset)
+                       void *dma_opaque, qemu_irq irq)
 {
     DeviceState *dev;
     SysBusDevice *s;
+    qemu_irq reset;
 
     qemu_check_nic_model(&nd_table[0], "lance");
 
     dev = qdev_create(NULL, "lance");
-    dev->nd = nd;
+    qdev_set_nic_properties(dev, nd);
     qdev_prop_set_ptr(dev, "dma", dma_opaque);
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     sysbus_mmio_map(s, 0, leaddr);
     sysbus_connect_irq(s, 0, irq);
-    *reset = qdev_get_gpio_in(dev, 0);
+    reset = qdev_get_gpio_in(dev, 0);
+    qdev_connect_gpio_out(dma_opaque, 0, reset);
 }
 
 static DeviceState *slavio_intctl_init(target_phys_addr_t addr,
                                        target_phys_addr_t addrg,
-                                       qemu_irq **parent_irq,
-                                       unsigned int cputimer)
+                                       qemu_irq **parent_irq)
 {
     DeviceState *dev;
     SysBusDevice *s;
     unsigned int i, j;
 
     dev = qdev_create(NULL, "slavio_intctl");
-    qdev_prop_set_uint32(dev, "cputimer_bit", cputimer);
-    qdev_init(dev);
+    qdev_init_nofail(dev);
 
     s = sysbus_from_qdev(dev);
 
@@ -425,7 +459,7 @@ static void slavio_timer_init_all(target_phys_addr_t addr, qemu_irq master_irq,
 
     dev = qdev_create(NULL, "slavio_timer");
     qdev_prop_set_uint32(dev, "num_cpus", num_cpus);
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     sysbus_connect_irq(s, 0, master_irq);
     sysbus_mmio_map(s, 0, addr + SYS_TIMER_OFFSET);
@@ -442,16 +476,16 @@ static void slavio_timer_init_all(target_phys_addr_t addr, qemu_irq master_irq,
 #define MISC_MDM  0x01b00000
 #define MISC_SYS  0x01f00000
 
-static void *slavio_misc_init(target_phys_addr_t base,
-                              target_phys_addr_t aux1_base,
-                              target_phys_addr_t aux2_base, qemu_irq irq,
-                              qemu_irq fdc_tc)
+static void slavio_misc_init(target_phys_addr_t base,
+                             target_phys_addr_t aux1_base,
+                             target_phys_addr_t aux2_base, qemu_irq irq,
+                             qemu_irq fdc_tc)
 {
     DeviceState *dev;
     SysBusDevice *s;
 
     dev = qdev_create(NULL, "slavio_misc");
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     if (base) {
         /* 8 bit registers */
@@ -478,8 +512,7 @@ static void *slavio_misc_init(target_phys_addr_t base,
     }
     sysbus_connect_irq(s, 0, irq);
     sysbus_connect_irq(s, 1, fdc_tc);
-
-    return s;
+    qemu_system_powerdown = qdev_get_gpio_in(dev, 0);
 }
 
 static void ecc_init(target_phys_addr_t base, qemu_irq irq, uint32_t version)
@@ -489,7 +522,7 @@ static void ecc_init(target_phys_addr_t base, qemu_irq irq, uint32_t version)
 
     dev = qdev_create(NULL, "eccmemctl");
     qdev_prop_set_uint32(dev, "version", version);
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     sysbus_connect_irq(s, 0, irq);
     sysbus_mmio_map(s, 0, base);
@@ -504,7 +537,7 @@ static void apc_init(target_phys_addr_t power_base, qemu_irq cpu_halt)
     SysBusDevice *s;
 
     dev = qdev_create(NULL, "apc");
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     /* Power management (APC) XXX: not a Slavio device */
     sysbus_mmio_map(s, 0, power_base);
@@ -523,7 +556,7 @@ static void tcx_init(target_phys_addr_t addr, int vram_size, int width,
     qdev_prop_set_uint16(dev, "width", width);
     qdev_prop_set_uint16(dev, "height", height);
     qdev_prop_set_uint16(dev, "depth", depth);
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     /* 8-bit plane */
     sysbus_mmio_map(s, 0, addr + 0x00800000ULL);
@@ -553,19 +586,20 @@ static void idreg_init(target_phys_addr_t addr)
     SysBusDevice *s;
 
     dev = qdev_create(NULL, "macio_idreg");
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
 
     sysbus_mmio_map(s, 0, addr);
     cpu_physical_memory_write_rom(addr, idreg_data, sizeof(idreg_data));
 }
 
-static void idreg_init1(SysBusDevice *dev)
+static int idreg_init1(SysBusDevice *dev)
 {
     ram_addr_t idreg_offset;
 
-    idreg_offset = qemu_ram_alloc(sizeof(idreg_data));
+    idreg_offset = qemu_ram_alloc(NULL, "sun4m.idreg", sizeof(idreg_data));
     sysbus_init_mmio(dev, sizeof(idreg_data), idreg_offset | IO_MEM_ROM);
+    return 0;
 }
 
 static SysBusDeviceInfo idreg_info = {
@@ -581,7 +615,48 @@ static void idreg_register_devices(void)
 
 device_init(idreg_register_devices);
 
+/* SS-5 TCX AFX register */
+static void afx_init(target_phys_addr_t addr)
+{
+    DeviceState *dev;
+    SysBusDevice *s;
+
+    dev = qdev_create(NULL, "tcx_afx");
+    qdev_init_nofail(dev);
+    s = sysbus_from_qdev(dev);
+
+    sysbus_mmio_map(s, 0, addr);
+}
+
+static int afx_init1(SysBusDevice *dev)
+{
+    ram_addr_t afx_offset;
+
+    afx_offset = qemu_ram_alloc(NULL, "sun4m.afx", 4);
+    sysbus_init_mmio(dev, 4, afx_offset | IO_MEM_RAM);
+    return 0;
+}
+
+static SysBusDeviceInfo afx_info = {
+    .init = afx_init1,
+    .qdev.name  = "tcx_afx",
+    .qdev.size  = sizeof(SysBusDevice),
+};
+
+static void afx_register_devices(void)
+{
+    sysbus_register_withprop(&afx_info);
+}
+
+device_init(afx_register_devices);
+
 /* Boot PROM (OpenBIOS) */
+static uint64_t translate_prom_address(void *opaque, uint64_t addr)
+{
+    target_phys_addr_t *base_addr = (target_phys_addr_t *)opaque;
+    return addr + *base_addr - PROM_VADDR;
+}
+
 static void prom_init(target_phys_addr_t addr, const char *bios_name)
 {
     DeviceState *dev;
@@ -590,7 +665,7 @@ static void prom_init(target_phys_addr_t addr, const char *bios_name)
     int ret;
 
     dev = qdev_create(NULL, "openprom");
-    qdev_init(dev);
+    qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
 
     sysbus_mmio_map(s, 0, addr);
@@ -601,7 +676,8 @@ static void prom_init(target_phys_addr_t addr, const char *bios_name)
     }
     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
     if (filename) {
-        ret = load_elf(filename, addr - PROM_VADDR, NULL, NULL, NULL);
+        ret = load_elf(filename, translate_prom_address, &addr, NULL,
+                       NULL, NULL, 1, ELF_MACHINE, 0);
         if (ret < 0 || ret > PROM_SIZE_MAX) {
             ret = load_image_targphys(filename, addr, PROM_SIZE_MAX);
         }
@@ -615,12 +691,13 @@ static void prom_init(target_phys_addr_t addr, const char *bios_name)
     }
 }
 
-static void prom_init1(SysBusDevice *dev)
+static int prom_init1(SysBusDevice *dev)
 {
     ram_addr_t prom_offset;
 
-    prom_offset = qemu_ram_alloc(PROM_SIZE_MAX);
+    prom_offset = qemu_ram_alloc(NULL, "sun4m.prom", PROM_SIZE_MAX);
     sysbus_init_mmio(dev, PROM_SIZE_MAX, prom_offset | IO_MEM_ROM);
+    return 0;
 }
 
 static SysBusDeviceInfo prom_info = {
@@ -646,15 +723,16 @@ typedef struct RamDevice
 } RamDevice;
 
 /* System RAM */
-static void ram_init1(SysBusDevice *dev)
+static int ram_init1(SysBusDevice *dev)
 {
     ram_addr_t RAM_size, ram_offset;
     RamDevice *d = FROM_SYSBUS(RamDevice, dev);
 
     RAM_size = d->size;
 
-    ram_offset = qemu_ram_alloc(RAM_size);
+    ram_offset = qemu_ram_alloc(NULL, "sun4m.ram", RAM_size);
     sysbus_init_mmio(dev, RAM_size, ram_offset);
+    return 0;
 }
 
 static void ram_init(target_phys_addr_t addr, ram_addr_t RAM_size,
@@ -677,7 +755,7 @@ static void ram_init(target_phys_addr_t addr, ram_addr_t RAM_size,
 
     d = FROM_SYSBUS(RamDevice, s);
     d->size = RAM_size;
-    qdev_init(dev);
+    qdev_init_nofail(dev);
 
     sysbus_mmio_map(s, 0, addr);
 }
@@ -687,12 +765,8 @@ static SysBusDeviceInfo ram_info = {
     .qdev.name  = "memory",
     .qdev.size  = sizeof(RamDevice),
     .qdev.props = (Property[]) {
-        {
-            .name = "size",
-            .info = &qdev_prop_uint64,
-            .offset = offsetof(RamDevice, size),
-        },
-        {/* end of property list */}
+        DEFINE_PROP_UINT64("size", RamDevice, size, 0),
+        DEFINE_PROP_END_OF_LIST(),
     }
 };
 
@@ -703,8 +777,8 @@ static void ram_register_devices(void)
 
 device_init(ram_register_devices);
 
-static CPUState *cpu_devinit(const char *cpu_model, unsigned int id,
-                             uint64_t prom_addr, qemu_irq **cpu_irqs)
+static void cpu_devinit(const char *cpu_model, unsigned int id,
+                        uint64_t prom_addr, qemu_irq **cpu_irqs)
 {
     CPUState *env;
 
@@ -723,8 +797,6 @@ static CPUState *cpu_devinit(const char *cpu_model, unsigned int id,
     }
     *cpu_irqs = qemu_allocate_irqs(cpu_set_irq, env, MAX_PILS);
     env->prom_addr = prom_addr;
-
-    return env;
 }
 
 static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
@@ -733,26 +805,24 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
                           const char *kernel_cmdline,
                           const char *initrd_filename, const char *cpu_model)
 {
-    CPUState *envs[MAX_CPUS];
     unsigned int i;
     void *iommu, *espdma, *ledma, *nvram;
     qemu_irq *cpu_irqs[MAX_CPUS], slavio_irq[32], slavio_cpu_irq[MAX_CPUS],
         espdma_irq, ledma_irq;
-    qemu_irq *esp_reset, *le_reset;
+    qemu_irq esp_reset, dma_enable;
     qemu_irq fdc_tc;
     qemu_irq *cpu_halt;
     unsigned long kernel_size;
-    BlockDriverState *fd[MAX_FD];
+    DriveInfo *fd[MAX_FD];
     void *fw_cfg;
-    DeviceState *dev;
-    DriveInfo *dinfo;
+    unsigned int num_vsimms;
 
     /* init CPUs */
     if (!cpu_model)
         cpu_model = hwdef->default_cpu_model;
 
     for(i = 0; i < smp_cpus; i++) {
-        envs[i] = cpu_devinit(cpu_model, i, hwdef->slavio_base, &cpu_irqs[i]);
+        cpu_devinit(cpu_model, i, hwdef->slavio_base, &cpu_irqs[i]);
     }
 
     for (i = smp_cpus; i < MAX_CPUS; i++)
@@ -761,46 +831,73 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
 
     /* set up devices */
     ram_init(0, RAM_size, hwdef->max_mem);
+    /* models without ECC don't trap when missing ram is accessed */
+    if (!hwdef->ecc_base) {
+        empty_slot_init(RAM_size, hwdef->max_mem - RAM_size);
+    }
 
     prom_init(hwdef->slavio_base, bios_name);
 
-    dev = slavio_intctl_init(hwdef->intctl_base,
-                             hwdef->intctl_base + 0x10000ULL,
-                             cpu_irqs,
-                             7);
+    slavio_intctl = slavio_intctl_init(hwdef->intctl_base,
+                                       hwdef->intctl_base + 0x10000ULL,
+                                       cpu_irqs);
 
     for (i = 0; i < 32; i++) {
-        slavio_irq[i] = qdev_get_gpio_in(dev, i);
+        slavio_irq[i] = qdev_get_gpio_in(slavio_intctl, i);
     }
     for (i = 0; i < MAX_CPUS; i++) {
-        slavio_cpu_irq[i] = qdev_get_gpio_in(dev, 32 + i);
+        slavio_cpu_irq[i] = qdev_get_gpio_in(slavio_intctl, 32 + i);
     }
 
     if (hwdef->idreg_base) {
         idreg_init(hwdef->idreg_base);
     }
 
+    if (hwdef->afx_base) {
+        afx_init(hwdef->afx_base);
+    }
+
     iommu = iommu_init(hwdef->iommu_base, hwdef->iommu_version,
                        slavio_irq[30]);
 
+    if (hwdef->iommu_pad_base) {
+        /* On the real hardware (SS-5, LX) the MMU is not padded, but aliased.
+           Software shouldn't use aliased addresses, neither should it crash
+           when does. Using empty_slot instead of aliasing can help with
+           debugging such accesses */
+        empty_slot_init(hwdef->iommu_pad_base,hwdef->iommu_pad_len);
+    }
+
     espdma = sparc32_dma_init(hwdef->dma_base, slavio_irq[18],
-                              iommu, &espdma_irq, &esp_reset);
+                              iommu, &espdma_irq, 0);
 
     ledma = sparc32_dma_init(hwdef->dma_base + 16ULL,
-                             slavio_irq[16], iommu, &ledma_irq,
-                             &le_reset);
+                             slavio_irq[16], iommu, &ledma_irq, 1);
 
     if (graphic_depth != 8 && graphic_depth != 24) {
         fprintf(stderr, "qemu: Unsupported depth: %d\n", graphic_depth);
         exit (1);
     }
-    tcx_init(hwdef->tcx_base, hwdef->vram_size, graphic_width, graphic_height,
-             graphic_depth);
+    num_vsimms = 0;
+    if (num_vsimms == 0) {
+        tcx_init(hwdef->tcx_base, 0x00100000, graphic_width, graphic_height,
+                 graphic_depth);
+    }
+
+    for (i = num_vsimms; i < MAX_VSIMMS; i++) {
+        /* vsimm registers probed by OBP */
+        if (hwdef->vsimm[i].reg_base) {
+            empty_slot_init(hwdef->vsimm[i].reg_base, 0x2000);
+        }
+    }
+
+    if (hwdef->sx_base) {
+        empty_slot_init(hwdef->sx_base, 0x2000);
+    }
 
-    lance_init(&nd_table[0], hwdef->le_base, ledma, ledma_irq, le_reset);
+    lance_init(&nd_table[0], hwdef->le_base, ledma, ledma_irq);
 
-    nvram = m48t59_init(slavio_irq[0], hwdef->nvram_base, 0,
-                        hwdef->nvram_size, 8);
+    nvram = m48t59_init(slavio_irq[0], hwdef->nvram_base, 0, 0x2000, 8);
 
     slavio_timer_init_all(hwdef->counter_base, slavio_irq[19], slavio_cpu_irq, smp_cpus);
 
@@ -812,9 +909,9 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
               serial_hds[0], serial_hds[1], ESCC_CLOCK, 1);
 
     cpu_halt = qemu_allocate_irqs(cpu_halt_signal, NULL, 1);
-    slavio_misc = slavio_misc_init(hwdef->slavio_base,
-                                   hwdef->aux1_base, hwdef->aux2_base,
-                                   slavio_irq[30], fdc_tc);
+    slavio_misc_init(hwdef->slavio_base, hwdef->aux1_base, hwdef->aux2_base,
+                     slavio_irq[30], fdc_tc);
+
     if (hwdef->apc_base) {
         apc_init(hwdef->apc_base, cpu_halt[0]);
     }
@@ -822,10 +919,7 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
     if (hwdef->fd_base) {
         /* there is zero or one floppy drive */
         memset(fd, 0, sizeof(fd));
-        dinfo = drive_get(IF_FLOPPY, 0, 0);
-        if (dinfo)
-            fd[0] = dinfo->bdrv;
-
+        fd[0] = drive_get(IF_FLOPPY, 0, 0);
         sun4m_fdctrl_init(slavio_irq[22], hwdef->fd_base, fd,
                           &fdc_tc);
     }
@@ -837,13 +931,29 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
 
     esp_init(hwdef->esp_base, 2,
              espdma_memory_read, espdma_memory_write,
-             espdma, espdma_irq, esp_reset);
+             espdma, espdma_irq, &esp_reset, &dma_enable);
+
+    qdev_connect_gpio_out(espdma, 0, esp_reset);
+    qdev_connect_gpio_out(espdma, 1, dma_enable);
 
     if (hwdef->cs_base) {
         sysbus_create_simple("SUNW,CS4231", hwdef->cs_base,
                              slavio_irq[5]);
     }
 
+    if (hwdef->dbri_base) {
+        /* ISDN chip with attached CS4215 audio codec */
+        /* prom space */
+        empty_slot_init(hwdef->dbri_base+0x1000, 0x30);
+        /* reg space */
+        empty_slot_init(hwdef->dbri_base+0x10000, 0x100);
+    }
+
+    if (hwdef->bpp_base) {
+        /* parallel port */
+        empty_slot_init(hwdef->bpp_base, 0x20);
+    }
+
     kernel_size = sun4m_load_kernel(kernel_filename, initrd_filename,
                                     RAM_size);
 
@@ -865,9 +975,15 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
     if (kernel_cmdline) {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
-        pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
+        pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
+        fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
+                         (uint8_t*)strdup(kernel_cmdline),
+                         strlen(kernel_cmdline) + 1);
+        fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,
+                       strlen(kernel_cmdline) + 1);
     } else {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
+        fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 0);
     }
     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, INITRD_LOAD_ADDR);
     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, 0); // not used
@@ -894,6 +1010,8 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
     /* SS-5 */
     {
         .iommu_base   = 0x10000000,
+        .iommu_pad_base = 0x10004000,
+        .iommu_pad_len  = 0x0fffb000,
         .tcx_base     = 0x50000000,
         .cs_base      = 0x6c000000,
         .slavio_base  = 0x70000000,
@@ -908,10 +1026,9 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .esp_base     = 0x78800000,
         .le_base      = 0x78c00000,
         .apc_base     = 0x6a000000,
+        .afx_base     = 0x6e000000,
         .aux1_base    = 0x71900000,
         .aux2_base    = 0x71910000,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = ss5_id,
         .iommu_version = 0x05000000,
@@ -938,8 +1055,6 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .aux2_base    = 0xff1a01000ULL,
         .ecc_base     = 0xf00000000ULL,
         .ecc_version  = 0x10000000, // version 0, implementation 1
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x72,
         .machine_id = ss10_id,
         .iommu_version = 0x03000000,
@@ -964,8 +1079,6 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .aux2_base    = 0xff1a01000ULL, // XXX should not exist
         .ecc_base     = 0xf00000000ULL,
         .ecc_version  = 0x00000000, // version 0, implementation 0
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x71,
         .machine_id = ss600mp_id,
         .iommu_version = 0x01000000,
@@ -987,13 +1100,27 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .dma_base     = 0xef0400000ULL,
         .esp_base     = 0xef0800000ULL,
         .le_base      = 0xef0c00000ULL,
+        .bpp_base     = 0xef4800000ULL,
         .apc_base     = 0xefa000000ULL, // XXX should not exist
         .aux1_base    = 0xff1800000ULL,
         .aux2_base    = 0xff1a01000ULL,
+        .dbri_base    = 0xee0000000ULL,
+        .sx_base      = 0xf80000000ULL,
+        .vsimm        = {
+            {
+                .reg_base  = 0x9c000000ULL,
+                .vram_base = 0xfc000000ULL
+            }, {
+                .reg_base  = 0x90000000ULL,
+                .vram_base = 0xf0000000ULL
+            }, {
+                .reg_base  = 0x94000000ULL
+            }, {
+                .reg_base  = 0x98000000ULL
+            }
+        },
         .ecc_base     = 0xf00000000ULL,
         .ecc_version  = 0x20000000, // version 0, implementation 2
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x72,
         .machine_id = ss20_id,
         .iommu_version = 0x13000000,
@@ -1018,8 +1145,6 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .apc_base     = 0x71300000, // pmc
         .aux1_base    = 0x71900000,
         .aux2_base    = 0x71910000,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = vger_id,
         .iommu_version = 0x05000000,
@@ -1029,6 +1154,8 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
     /* LX */
     {
         .iommu_base   = 0x10000000,
+        .iommu_pad_base = 0x10004000,
+        .iommu_pad_len  = 0x0fffb000,
         .tcx_base     = 0x50000000,
         .slavio_base  = 0x70000000,
         .ms_kb_base   = 0x71000000,
@@ -1043,8 +1170,6 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .le_base      = 0x78c00000,
         .aux1_base    = 0x71900000,
         .aux2_base    = 0x71910000,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = lx_id,
         .iommu_version = 0x04000000,
@@ -1070,8 +1195,6 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .apc_base     = 0x6a000000,
         .aux1_base    = 0x71900000,
         .aux2_base    = 0x71910000,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = ss4_id,
         .iommu_version = 0x05000000,
@@ -1096,8 +1219,6 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .apc_base     = 0x6a000000,
         .aux1_base    = 0x71900000,
         .aux2_base    = 0x71910000,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = scls_id,
         .iommu_version = 0x05000000,
@@ -1122,8 +1243,6 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .apc_base     = 0x6a000000,
         .aux1_base    = 0x71900000,
         .aux2_base    = 0x71910000,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = sbook_id,
         .iommu_version = 0x05000000,
@@ -1311,8 +1430,6 @@ static const struct sun4d_hwdef sun4d_hwdefs[] = {
         .ledma_base   = 0x800040000ULL,
         .le_base      = 0x800060000ULL,
         .sbi_base     = 0xf02800000ULL,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = ss1000_id,
         .iounit_version = 0x03000000,
@@ -1339,8 +1456,6 @@ static const struct sun4d_hwdef sun4d_hwdefs[] = {
         .ledma_base   = 0x800040000ULL,
         .le_base      = 0x800060000ULL,
         .sbi_base     = 0xf02800000ULL,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x2000,
         .nvram_machine_id = 0x80,
         .machine_id = ss2000_id,
         .iounit_version = 0x03000000,
@@ -1356,7 +1471,7 @@ static DeviceState *sbi_init(target_phys_addr_t addr, qemu_irq **parent_irq)
     unsigned int i;
 
     dev = qdev_create(NULL, "sbi");
-    qdev_init(dev);
+    qdev_init_nofail(dev);
 
     s = sysbus_from_qdev(dev);
 
@@ -1375,12 +1490,11 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
                           const char *kernel_cmdline,
                           const char *initrd_filename, const char *cpu_model)
 {
-    CPUState *envs[MAX_CPUS];
     unsigned int i;
     void *iounits[MAX_IOUNITS], *espdma, *ledma, *nvram;
     qemu_irq *cpu_irqs[MAX_CPUS], sbi_irq[32], sbi_cpu_irq[MAX_CPUS],
         espdma_irq, ledma_irq;
-    qemu_irq *esp_reset, *le_reset;
+    qemu_irq esp_reset, dma_enable;
     unsigned long kernel_size;
     void *fw_cfg;
     DeviceState *dev;
@@ -1390,7 +1504,7 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
         cpu_model = hwdef->default_cpu_model;
 
     for(i = 0; i < smp_cpus; i++) {
-        envs[i] = cpu_devinit(cpu_model, i, hwdef->slavio_base, &cpu_irqs[i]);
+        cpu_devinit(cpu_model, i, hwdef->slavio_base, &cpu_irqs[i]);
     }
 
     for (i = smp_cpus; i < MAX_CPUS; i++)
@@ -1417,22 +1531,22 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
                                     sbi_irq[0]);
 
     espdma = sparc32_dma_init(hwdef->espdma_base, sbi_irq[3],
-                              iounits[0], &espdma_irq, &esp_reset);
+                              iounits[0], &espdma_irq, 0);
 
+    /* should be lebuffer instead */
     ledma = sparc32_dma_init(hwdef->ledma_base, sbi_irq[4],
-                             iounits[0], &ledma_irq, &le_reset);
+                             iounits[0], &ledma_irq, 0);
 
     if (graphic_depth != 8 && graphic_depth != 24) {
         fprintf(stderr, "qemu: Unsupported depth: %d\n", graphic_depth);
         exit (1);
     }
-    tcx_init(hwdef->tcx_base, hwdef->vram_size, graphic_width, graphic_height,
+    tcx_init(hwdef->tcx_base, 0x00100000, graphic_width, graphic_height,
              graphic_depth);
 
-    lance_init(&nd_table[0], hwdef->le_base, ledma, ledma_irq, le_reset);
+    lance_init(&nd_table[0], hwdef->le_base, ledma, ledma_irq);
 
-    nvram = m48t59_init(sbi_irq[0], hwdef->nvram_base, 0,
-                        hwdef->nvram_size, 8);
+    nvram = m48t59_init(sbi_irq[0], hwdef->nvram_base, 0, 0x2000, 8);
 
     slavio_timer_init_all(hwdef->counter_base, sbi_irq[10], sbi_cpu_irq, smp_cpus);
 
@@ -1450,7 +1564,10 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
 
     esp_init(hwdef->esp_base, 2,
              espdma_memory_read, espdma_memory_write,
-             espdma, espdma_irq, esp_reset);
+             espdma, espdma_irq, &esp_reset, &dma_enable);
+
+    qdev_connect_gpio_out(espdma, 0, esp_reset);
+    qdev_connect_gpio_out(espdma, 1, dma_enable);
 
     kernel_size = sun4m_load_kernel(kernel_filename, initrd_filename,
                                     RAM_size);
@@ -1469,7 +1586,10 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
     if (kernel_cmdline) {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
-        pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
+        pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
+        fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
+                         (uint8_t*)strdup(kernel_cmdline),
+                         strlen(kernel_cmdline) + 1);
     } else {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
     }
@@ -1531,8 +1651,6 @@ static const struct sun4c_hwdef sun4c_hwdefs[] = {
         .esp_base     = 0xf8800000,
         .le_base      = 0xf8c00000,
         .aux1_base    = 0xf7400003,
-        .vram_size    = 0x00100000,
-        .nvram_size   = 0x800,
         .nvram_machine_id = 0x55,
         .machine_id = ss2_id,
         .max_mem = 0x10000000,
@@ -1548,7 +1666,7 @@ static DeviceState *sun4c_intctl_init(target_phys_addr_t addr,
     unsigned int i;
 
     dev = qdev_create(NULL, "sun4c_intctl");
-    qdev_init(dev);
+    qdev_init_nofail(dev);
 
     s = sysbus_from_qdev(dev);
 
@@ -1566,23 +1684,21 @@ static void sun4c_hw_init(const struct sun4c_hwdef *hwdef, ram_addr_t RAM_size,
                           const char *kernel_cmdline,
                           const char *initrd_filename, const char *cpu_model)
 {
-    CPUState *env;
     void *iommu, *espdma, *ledma, *nvram;
     qemu_irq *cpu_irqs, slavio_irq[8], espdma_irq, ledma_irq;
-    qemu_irq *esp_reset, *le_reset;
+    qemu_irq esp_reset, dma_enable;
     qemu_irq fdc_tc;
     unsigned long kernel_size;
-    BlockDriverState *fd[MAX_FD];
+    DriveInfo *fd[MAX_FD];
     void *fw_cfg;
     DeviceState *dev;
     unsigned int i;
-    DriveInfo *dinfo;
 
     /* init CPU */
     if (!cpu_model)
         cpu_model = hwdef->default_cpu_model;
 
-    env = cpu_devinit(cpu_model, 0, hwdef->slavio_base, &cpu_irqs);
+    cpu_devinit(cpu_model, 0, hwdef->slavio_base, &cpu_irqs);
 
     /* set up devices */
     ram_init(0, RAM_size, hwdef->max_mem);
@@ -1599,23 +1715,21 @@ static void sun4c_hw_init(const struct sun4c_hwdef *hwdef, ram_addr_t RAM_size,
                        slavio_irq[1]);
 
     espdma = sparc32_dma_init(hwdef->dma_base, slavio_irq[2],
-                              iommu, &espdma_irq, &esp_reset);
+                              iommu, &espdma_irq, 0);
 
     ledma = sparc32_dma_init(hwdef->dma_base + 16ULL,
-                             slavio_irq[3], iommu, &ledma_irq,
-                             &le_reset);
+                             slavio_irq[3], iommu, &ledma_irq, 1);
 
     if (graphic_depth != 8 && graphic_depth != 24) {
         fprintf(stderr, "qemu: Unsupported depth: %d\n", graphic_depth);
         exit (1);
     }
-    tcx_init(hwdef->tcx_base, hwdef->vram_size, graphic_width, graphic_height,
+    tcx_init(hwdef->tcx_base, 0x00100000, graphic_width, graphic_height,
              graphic_depth);
 
-    lance_init(&nd_table[0], hwdef->le_base, ledma, ledma_irq, le_reset);
+    lance_init(&nd_table[0], hwdef->le_base, ledma, ledma_irq);
 
-    nvram = m48t59_init(slavio_irq[0], hwdef->nvram_base, 0,
-                        hwdef->nvram_size, 2);
+    nvram = m48t59_init(slavio_irq[0], hwdef->nvram_base, 0, 0x800, 2);
 
     slavio_serial_ms_kbd_init(hwdef->ms_kb_base, slavio_irq[1],
                               display_type == DT_NOGRAPHIC, ESCC_CLOCK, 1);
@@ -1625,16 +1739,12 @@ static void sun4c_hw_init(const struct sun4c_hwdef *hwdef, ram_addr_t RAM_size,
               slavio_irq[1], serial_hds[0], serial_hds[1],
               ESCC_CLOCK, 1);
 
-    slavio_misc = slavio_misc_init(0, hwdef->aux1_base, 0,
-                                   slavio_irq[1], fdc_tc);
+    slavio_misc_init(0, hwdef->aux1_base, 0, slavio_irq[1], fdc_tc);
 
     if (hwdef->fd_base != (target_phys_addr_t)-1) {
         /* there is zero or one floppy drive */
         memset(fd, 0, sizeof(fd));
-        dinfo = drive_get(IF_FLOPPY, 0, 0);
-        if (dinfo)
-            fd[0] = dinfo->bdrv;
-
+        fd[0] = drive_get(IF_FLOPPY, 0, 0);
         sun4m_fdctrl_init(slavio_irq[1], hwdef->fd_base, fd,
                           &fdc_tc);
     }
@@ -1646,7 +1756,10 @@ static void sun4c_hw_init(const struct sun4c_hwdef *hwdef, ram_addr_t RAM_size,
 
     esp_init(hwdef->esp_base, 2,
              espdma_memory_read, espdma_memory_write,
-             espdma, espdma_irq, esp_reset);
+             espdma, espdma_irq, &esp_reset, &dma_enable);
+
+    qdev_connect_gpio_out(espdma, 0, esp_reset);
+    qdev_connect_gpio_out(espdma, 1, dma_enable);
 
     kernel_size = sun4m_load_kernel(kernel_filename, initrd_filename,
                                     RAM_size);
@@ -1665,7 +1778,10 @@ static void sun4c_hw_init(const struct sun4c_hwdef *hwdef, ram_addr_t RAM_size,
     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
     if (kernel_cmdline) {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
-        pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
+        pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
+        fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
+                         (uint8_t*)strdup(kernel_cmdline),
+                         strlen(kernel_cmdline) + 1);
     } else {
         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
     }