#qemu-only -> submit upstream qemu, but improve first: 
# undo rather hacky pci_enabled -> model > MODEL_ISA changes 
# and replace checks wether to enable newer emulated Mac hardware 
# depending in the bits in a bitfield which is passed pc_init1() 
# like this: pc_init1(.... , ISA, ...) 
#            pc_init1(.... , PCI | IOAPIC | PIIX, ..... 
#            pc_init1(.... , PCI | ICH6, LPC, SMC , ...) 
Index: kvm-78/qemu/hw/pc.c
===================================================================
--- kvm-78.orig/qemu/hw/pc.c
+++ kvm-78/qemu/hw/pc.c
@@ -58,6 +58,12 @@ static PITState *pit;
 static IOAPICState *ioapic;
 static PCIDevice *i440fx_state;
 
+enum pc_model {
+    MODEL_ISA = 0,
+    MODEL_PCI = 1,
+    MODEL_MAC = 2
+};
+
 static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
 {
 }
@@ -805,7 +811,7 @@ static void pc_init1(ram_addr_t ram_size
                      const char *boot_device, DisplayState *ds,
                      const char *kernel_filename, const char *kernel_cmdline,
                      const char *initrd_filename,
-                     int pci_enabled, const char *cpu_model)
+                     int model, const char *cpu_model)
 {
     char buf[1024];
     int ret, linux_boot, i;
@@ -833,15 +839,19 @@ static void pc_init1(ram_addr_t ram_size
 
     /* init CPUs */
     if (cpu_model == NULL) {
+        if(model == MODEL_MAC) {
+            cpu_model = "coreduo";
+        } else {
 #ifdef TARGET_X86_64
-        cpu_model = "qemu64";
+            cpu_model = "qemu64";
 #else
-        cpu_model = "qemu32";
+            cpu_model = "qemu32";
 #endif
+        }
     }
     
     for(i = 0; i < smp_cpus; i++) {
-	env = pc_new_cpu(i, cpu_model, pci_enabled);
+	env = pc_new_cpu(i, cpu_model, model > MODEL_ISA);
     }
 
     vmport_init();
@@ -880,8 +890,16 @@ static void pc_init1(ram_addr_t ram_size
     vga_ram_addr = qemu_ram_alloc(vga_ram_size);
 
     /* BIOS load */
-    if (bios_name == NULL)
-        bios_name = BIOS_FILENAME;
+    if (bios_name == NULL) {
+        switch(model) {
+            case MODEL_MAC:
+                bios_name = "bios-mac.bin";
+                break;
+            default:
+                bios_name = BIOS_FILENAME;
+                break;
+        }
+    }
     snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
     bios_size = get_image_size(buf);
     if (bios_size <= 0 ||
@@ -956,7 +974,7 @@ static void pc_init1(ram_addr_t ram_size
     i8259 = i8259_init(cpu_irq[0]);
     ferr_irq = i8259[13];
 
-    if (pci_enabled) {
+    if (model > MODEL_ISA) {
         pci_bus = i440fx_init(&i440fx_state, i8259);
         piix3_devfn = piix3_init(pci_bus, -1);
     } else {
@@ -969,7 +987,7 @@ static void pc_init1(ram_addr_t ram_size
     register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
 
     if (cirrus_vga_enabled) {
-        if (pci_enabled) {
+        if (model > MODEL_ISA) {
             pci_cirrus_vga_init(pci_bus,
                                 ds, phys_ram_base + vga_ram_addr,
                                 vga_ram_addr, vga_ram_size);
@@ -978,13 +996,13 @@ static void pc_init1(ram_addr_t ram_size
                                 vga_ram_addr, vga_ram_size);
         }
     } else if (vmsvga_enabled) {
-        if (pci_enabled)
+        if (model > MODEL_ISA)
             pci_vmsvga_init(pci_bus, ds, phys_ram_base + vga_ram_addr,
                             vga_ram_addr, vga_ram_size);
         else
             fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
     } else {
-        if (pci_enabled) {
+        if (model > MODEL_ISA) {
             pci_vga_init(pci_bus, ds, phys_ram_base + vga_ram_addr,
                          vga_ram_addr, vga_ram_size, 0, 0);
         } else {
@@ -1000,8 +1018,13 @@ static void pc_init1(ram_addr_t ram_size
     register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
     register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
 
-    if (pci_enabled) {
-        ioapic = ioapic_init();
+    switch (model) {
+        case MODEL_MAC:
+            applesmc_init();
+            lpc_init(pci_bus, piix3_devfn, i8259);
+        case MODEL_PCI:
+            ioapic = ioapic_init();
+            break;
     }
 #ifdef USE_KVM_PIT
     if (kvm_enabled() && qemu_kvm_pit_in_kernel())
@@ -1010,7 +1033,7 @@ static void pc_init1(ram_addr_t ram_size
 #endif
 	pit = pit_init(0x40, i8259[0]);
     pcspk_init(pit);
-    if (pci_enabled) {
+    if (model > MODEL_ISA) {
         pic_set_alt_irq_func(isa_pic, ioapic_set_irq, ioapic);
     }
 
@@ -1031,15 +1054,22 @@ static void pc_init1(ram_addr_t ram_size
     for(i = 0; i < nb_nics; i++) {
         nd = &nd_table[i];
         if (!nd->model) {
-            if (pci_enabled) {
-                nd->model = "rtl8139";
-            } else {
-                nd->model = "ne2k_isa";
+            switch(model) {
+                case MODEL_ISA:
+                    nd->model = "ne2k_isa";
+                    break;
+                case MODEL_MAC:
+                    nd->model = "rtl8139";
+                    nd->link = Link_10mbps;
+                    break;
+                default:
+                    nd->model = "ne2k_pci";
+                    break;
             }
         }
         if (strcmp(nd->model, "ne2k_isa") == 0) {
             pc_init_ne2k_isa(nd, i8259);
-        } else if (pci_enabled) {
+        } else if (model > MODEL_ISA) {
             if (strcmp(nd->model, "?") == 0)
                 fprintf(stderr, "qemu: Supported ISA NICs: ne2k_isa\n");
             if (!pci_nic_init(pci_bus, nd, -1))
@@ -1068,19 +1098,25 @@ static void pc_init1(ram_addr_t ram_size
 	    hd[i] = NULL;
     }
 
-    if (pci_enabled) {
-        pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1, i8259);
-    } else {
-        for(i = 0; i < MAX_IDE_BUS; i++) {
-            isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
-	                 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
-        }
+    switch(model) {
+        case MODEL_MAC:
+            pci_ich6_ide_init(pci_bus, hd, piix3_devfn + 1, i8259);
+            break;
+        case MODEL_PCI:
+            pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1, i8259);
+            break;
+        default:
+            for(i = 0; i < 2; i++) {
+                isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
+                             hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
+            }
+            break;
     }
 
     i8042_init(i8259[1], i8259[12], 0x60);
     DMA_init(0);
 #ifdef HAS_AUDIO
-    audio_init(pci_enabled ? pci_bus : NULL, i8259);
+    audio_init((model > MODEL_ISA) ? pci_bus : NULL, i8259);
 #endif
 
     for(i = 0; i < MAX_FD; i++) {
@@ -1094,11 +1130,11 @@ static void pc_init1(ram_addr_t ram_size
 
     cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd);
 
-    if (pci_enabled && usb_enabled) {
+    if ((model > MODEL_ISA) && usb_enabled) {
         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
     }
 
-    if (pci_enabled && acpi_enabled) {
+    if ((model > MODEL_ISA) && acpi_enabled) {
         uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
         i2c_bus *smbus;
 
@@ -1113,7 +1149,7 @@ static void pc_init1(ram_addr_t ram_size
         i440fx_init_memory_mappings(i440fx_state);
     }
 
-    if (pci_enabled) {
+    if (model > MODEL_ISA) {
 	int max_bus;
         int bus, unit;
         void *scsi;
@@ -1132,7 +1168,7 @@ static void pc_init1(ram_addr_t ram_size
     }
 
     /* Add virtio block devices */
-    if (pci_enabled) {
+    if (model > MODEL_ISA) {
 	int index;
 	int unit_id = 0;
 
@@ -1155,10 +1191,22 @@ static void pc_init1(ram_addr_t ram_size
 	extboot_init(info->bdrv, 1);
     }
 
-    if (pci_enabled)
+    if (model > MODEL_ISA)
         virtio_balloon_init(pci_bus);
 }
 
+static void pc_init_mac(ram_addr_t ram_size, int vga_ram_size,
+                        const char *boot_device, DisplayState *ds,
+                        const char *kernel_filename,
+                        const char *kernel_cmdline,
+                        const char *initrd_filename,
+                        const char *cpu_model)
+{
+    pc_init1(ram_size, vga_ram_size, boot_device, ds,
+             kernel_filename, kernel_cmdline,
+             initrd_filename, MODEL_MAC, cpu_model);
+}
+
 static void pc_init_pci(ram_addr_t ram_size, int vga_ram_size,
                         const char *boot_device, DisplayState *ds,
                         const char *kernel_filename,
@@ -1168,7 +1216,7 @@ static void pc_init_pci(ram_addr_t ram_s
 {
     pc_init1(ram_size, vga_ram_size, boot_device, ds,
              kernel_filename, kernel_cmdline,
-             initrd_filename, 1, cpu_model);
+             initrd_filename, MODEL_PCI, cpu_model);
 }
 
 static void pc_init_isa(ram_addr_t ram_size, int vga_ram_size,
@@ -1180,7 +1228,7 @@ static void pc_init_isa(ram_addr_t ram_s
 {
     pc_init1(ram_size, vga_ram_size, boot_device, ds,
              kernel_filename, kernel_cmdline,
-             initrd_filename, 0, cpu_model);
+             initrd_filename, MODEL_ISA, cpu_model);
 }
 
 QEMUMachine pc_machine = {
@@ -1190,6 +1238,14 @@ QEMUMachine pc_machine = {
     .ram_require = VGA_RAM_SIZE + PC_MAX_BIOS_SIZE,
     .max_cpus = 255,
 };
+
+QEMUMachine mac_machine = {
+    .name = "mac",
+    .desc = "Intel-Mac",
+    .init = pc_init_mac,
+    .ram_require = VGA_RAM_SIZE + PC_MAX_BIOS_SIZE,
+    .max_cpus = 255,
+};
 
 QEMUMachine isapc_machine = {
     .name = "isapc",
Index: kvm-78/qemu/hw/boards.h
===================================================================
--- kvm-78.orig/qemu/hw/boards.h
+++ kvm-78/qemu/hw/boards.h
@@ -33,6 +33,7 @@ extern QEMUMachine bareetraxfs_machine;
 /* pc.c */
 extern QEMUMachine pc_machine;
 extern QEMUMachine isapc_machine;
+extern QEMUMachine mac_machine;
 
 /* ppc.c */
 extern QEMUMachine prep_machine;
Index: kvm-78/qemu/target-i386/machine.c
===================================================================
--- kvm-78.orig/qemu/target-i386/machine.c
+++ kvm-78/qemu/target-i386/machine.c
@@ -10,6 +10,7 @@ void register_machines(void)
 {
     qemu_register_machine(&pc_machine);
     qemu_register_machine(&isapc_machine);
+    qemu_register_machine(&mac_machine);
 }
 
 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)