chardev: forbid 'reconnect' option with server sockets
[qemu/ar7.git] / hw / hppa / machine.c
blobd1b1d3caa40d247cdf77b5f7508563fadfb516fe
1 /*
2 * QEMU HPPA hardware system emulator.
3 * Copyright 2018 Helge Deller <deller@gmx.de>
4 */
6 #include "qemu/osdep.h"
7 #include "qemu-common.h"
8 #include "cpu.h"
9 #include "hw/hw.h"
10 #include "elf.h"
11 #include "hw/loader.h"
12 #include "hw/boards.h"
13 #include "qemu/error-report.h"
14 #include "sysemu/sysemu.h"
15 #include "hw/timer/mc146818rtc.h"
16 #include "hw/ide.h"
17 #include "hw/timer/i8254.h"
18 #include "hw/char/serial.h"
19 #include "hppa_sys.h"
20 #include "qemu/units.h"
21 #include "qapi/error.h"
22 #include "qemu/log.h"
24 #define MAX_IDE_BUS 2
26 static ISABus *hppa_isa_bus(void)
28 ISABus *isa_bus;
29 qemu_irq *isa_irqs;
30 MemoryRegion *isa_region;
32 isa_region = g_new(MemoryRegion, 1);
33 memory_region_init_io(isa_region, NULL, &hppa_pci_ignore_ops,
34 NULL, "isa-io", 0x800);
35 memory_region_add_subregion(get_system_memory(), IDE_HPA,
36 isa_region);
38 isa_bus = isa_bus_new(NULL, get_system_memory(), isa_region,
39 &error_abort);
40 isa_irqs = i8259_init(isa_bus,
41 /* qemu_allocate_irq(dino_set_isa_irq, s, 0)); */
42 NULL);
43 isa_bus_irqs(isa_bus, isa_irqs);
45 return isa_bus;
48 static uint64_t cpu_hppa_to_phys(void *opaque, uint64_t addr)
50 addr &= (0x10000000 - 1);
51 return addr;
54 static HPPACPU *cpu[HPPA_MAX_CPUS];
55 static uint64_t firmware_entry;
57 static void machine_hppa_init(MachineState *machine)
59 const char *kernel_filename = machine->kernel_filename;
60 const char *kernel_cmdline = machine->kernel_cmdline;
61 const char *initrd_filename = machine->initrd_filename;
62 DeviceState *dev;
63 PCIBus *pci_bus;
64 ISABus *isa_bus;
65 qemu_irq rtc_irq, serial_irq;
66 char *firmware_filename;
67 uint64_t firmware_low, firmware_high;
68 long size;
69 uint64_t kernel_entry = 0, kernel_low, kernel_high;
70 MemoryRegion *addr_space = get_system_memory();
71 MemoryRegion *rom_region;
72 MemoryRegion *ram_region;
73 MemoryRegion *cpu_region;
74 long i;
76 ram_size = machine->ram_size;
78 /* Create CPUs. */
79 for (i = 0; i < smp_cpus; i++) {
80 cpu[i] = HPPA_CPU(cpu_create(machine->cpu_type));
82 cpu_region = g_new(MemoryRegion, 1);
83 memory_region_init_io(cpu_region, OBJECT(cpu[i]), &hppa_io_eir_ops,
84 cpu[i], g_strdup_printf("cpu%ld-io-eir", i), 4);
85 memory_region_add_subregion(addr_space, CPU_HPA + i * 0x1000,
86 cpu_region);
89 /* Limit main memory. */
90 if (ram_size > FIRMWARE_START) {
91 machine->ram_size = ram_size = FIRMWARE_START;
94 /* Main memory region. */
95 ram_region = g_new(MemoryRegion, 1);
96 memory_region_allocate_system_memory(ram_region, OBJECT(machine),
97 "ram", ram_size);
98 memory_region_add_subregion(addr_space, 0, ram_region);
100 /* Init Dino (PCI host bus chip). */
101 pci_bus = dino_init(addr_space, &rtc_irq, &serial_irq);
102 assert(pci_bus);
104 /* Create ISA bus. */
105 isa_bus = hppa_isa_bus();
106 assert(isa_bus);
108 /* Realtime clock, used by firmware for PDC_TOD call. */
109 mc146818_rtc_init(isa_bus, 2000, rtc_irq);
111 /* Serial code setup. */
112 if (serial_hd(0)) {
113 uint32_t addr = DINO_UART_HPA + 0x800;
114 serial_mm_init(addr_space, addr, 0, serial_irq,
115 115200, serial_hd(0), DEVICE_BIG_ENDIAN);
118 /* SCSI disk setup. */
119 dev = DEVICE(pci_create_simple(pci_bus, -1, "lsi53c895a"));
120 lsi53c8xx_handle_legacy_cmdline(dev);
122 /* Network setup. e1000 is good enough, failing Tulip support. */
123 for (i = 0; i < nb_nics; i++) {
124 pci_nic_init_nofail(&nd_table[i], pci_bus, "e1000", NULL);
127 /* Load firmware. Given that this is not "real" firmware,
128 but one explicitly written for the emulation, we might as
129 well load it directly from an ELF image. */
130 firmware_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS,
131 bios_name ? bios_name :
132 "hppa-firmware.img");
133 if (firmware_filename == NULL) {
134 error_report("no firmware provided");
135 exit(1);
138 size = load_elf(firmware_filename, NULL, NULL, NULL,
139 &firmware_entry, &firmware_low, &firmware_high,
140 true, EM_PARISC, 0, 0);
142 /* Unfortunately, load_elf sign-extends reading elf32. */
143 firmware_entry = (target_ureg)firmware_entry;
144 firmware_low = (target_ureg)firmware_low;
145 firmware_high = (target_ureg)firmware_high;
147 if (size < 0) {
148 error_report("could not load firmware '%s'", firmware_filename);
149 exit(1);
151 qemu_log_mask(CPU_LOG_PAGE, "Firmware loaded at 0x%08" PRIx64
152 "-0x%08" PRIx64 ", entry at 0x%08" PRIx64 ".\n",
153 firmware_low, firmware_high, firmware_entry);
154 if (firmware_low < ram_size || firmware_high >= FIRMWARE_END) {
155 error_report("Firmware overlaps with memory or IO space");
156 exit(1);
158 g_free(firmware_filename);
160 rom_region = g_new(MemoryRegion, 1);
161 memory_region_allocate_system_memory(rom_region, OBJECT(machine),
162 "firmware",
163 (FIRMWARE_END - FIRMWARE_START));
164 memory_region_add_subregion(addr_space, FIRMWARE_START, rom_region);
166 /* Load kernel */
167 if (kernel_filename) {
168 size = load_elf(kernel_filename, NULL, &cpu_hppa_to_phys,
169 NULL, &kernel_entry, &kernel_low, &kernel_high,
170 true, EM_PARISC, 0, 0);
172 /* Unfortunately, load_elf sign-extends reading elf32. */
173 kernel_entry = (target_ureg) cpu_hppa_to_phys(NULL, kernel_entry);
174 kernel_low = (target_ureg)kernel_low;
175 kernel_high = (target_ureg)kernel_high;
177 if (size < 0) {
178 error_report("could not load kernel '%s'", kernel_filename);
179 exit(1);
181 qemu_log_mask(CPU_LOG_PAGE, "Kernel loaded at 0x%08" PRIx64
182 "-0x%08" PRIx64 ", entry at 0x%08" PRIx64
183 ", size %" PRIu64 " kB\n",
184 kernel_low, kernel_high, kernel_entry, size / KiB);
186 if (kernel_cmdline) {
187 cpu[0]->env.gr[24] = 0x4000;
188 pstrcpy_targphys("cmdline", cpu[0]->env.gr[24],
189 TARGET_PAGE_SIZE, kernel_cmdline);
192 if (initrd_filename) {
193 ram_addr_t initrd_base;
194 int64_t initrd_size;
196 initrd_size = get_image_size(initrd_filename);
197 if (initrd_size < 0) {
198 error_report("could not load initial ram disk '%s'",
199 initrd_filename);
200 exit(1);
203 /* Load the initrd image high in memory.
204 Mirror the algorithm used by palo:
205 (1) Due to sign-extension problems and PDC,
206 put the initrd no higher than 1G.
207 (2) Reserve 64k for stack. */
208 initrd_base = MIN(ram_size, 1 * GiB);
209 initrd_base = initrd_base - 64 * KiB;
210 initrd_base = (initrd_base - initrd_size) & TARGET_PAGE_MASK;
212 if (initrd_base < kernel_high) {
213 error_report("kernel and initial ram disk too large!");
214 exit(1);
217 load_image_targphys(initrd_filename, initrd_base, initrd_size);
218 cpu[0]->env.gr[23] = initrd_base;
219 cpu[0]->env.gr[22] = initrd_base + initrd_size;
223 if (!kernel_entry) {
224 /* When booting via firmware, tell firmware if we want interactive
225 * mode (kernel_entry=1), and to boot from CD (gr[24]='d')
226 * or hard disc * (gr[24]='c').
228 kernel_entry = boot_menu ? 1 : 0;
229 cpu[0]->env.gr[24] = machine->boot_order[0];
232 /* We jump to the firmware entry routine and pass the
233 * various parameters in registers. After firmware initialization,
234 * firmware will start the Linux kernel with ramdisk and cmdline.
236 cpu[0]->env.gr[26] = ram_size;
237 cpu[0]->env.gr[25] = kernel_entry;
239 /* tell firmware how many SMP CPUs to present in inventory table */
240 cpu[0]->env.gr[21] = smp_cpus;
243 static void hppa_machine_reset(void)
245 int i;
247 qemu_devices_reset();
249 /* Start all CPUs at the firmware entry point.
250 * Monarch CPU will initialize firmware, secondary CPUs
251 * will enter a small idle look and wait for rendevouz. */
252 for (i = 0; i < smp_cpus; i++) {
253 cpu_set_pc(CPU(cpu[i]), firmware_entry);
254 cpu[i]->env.gr[5] = CPU_HPA + i * 0x1000;
257 /* already initialized by machine_hppa_init()? */
258 if (cpu[0]->env.gr[26] == ram_size) {
259 return;
262 cpu[0]->env.gr[26] = ram_size;
263 cpu[0]->env.gr[25] = 0; /* no firmware boot menu */
264 cpu[0]->env.gr[24] = 'c';
265 /* gr22/gr23 unused, no initrd while reboot. */
266 cpu[0]->env.gr[21] = smp_cpus;
270 static void machine_hppa_machine_init(MachineClass *mc)
272 mc->desc = "HPPA generic machine";
273 mc->default_cpu_type = TYPE_HPPA_CPU;
274 mc->init = machine_hppa_init;
275 mc->reset = hppa_machine_reset;
276 mc->block_default_type = IF_SCSI;
277 mc->max_cpus = HPPA_MAX_CPUS;
278 mc->default_cpus = 1;
279 mc->is_default = 1;
280 mc->default_ram_size = 512 * MiB;
281 mc->default_boot_order = "cd";
284 DEFINE_MACHINE("hppa", machine_hppa_machine_init)