/* * QEMU Sun4u/Sun4v System Emulator * * Copyright (c) 2005 Fabrice Bellard * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "hw.h" #include "pci.h" #include "pc.h" #include "nvram.h" #include "fdc.h" #include "net.h" #include "qemu-timer.h" #include "sysemu.h" #include "boards.h" #include "firmware_abi.h" #include "fw_cfg.h" //#define DEBUG_IRQ #ifdef DEBUG_IRQ #define DPRINTF(fmt, args...) \ do { printf("CPUIRQ: " fmt , ##args); } while (0) #else #define DPRINTF(fmt, args...) #endif #define KERNEL_LOAD_ADDR 0x00404000 #define CMDLINE_ADDR 0x003ff000 #define INITRD_LOAD_ADDR 0x00300000 #define PROM_SIZE_MAX (4 * 1024 * 1024) #define PROM_VADDR 0x000ffd00000ULL #define APB_SPECIAL_BASE 0x1fe00000000ULL #define APB_MEM_BASE 0x1ff00000000ULL #define VGA_BASE (APB_MEM_BASE + 0x400000ULL) #define PROM_FILENAME "openbios-sparc64" #define NVRAM_SIZE 0x2000 #define MAX_IDE_BUS 2 #define BIOS_CFG_IOPORT 0x510 #define MAX_PILS 16 #define TICK_INT_DIS 0x8000000000000000ULL #define TICK_MAX 0x7fffffffffffffffULL struct hwdef { const char * const default_cpu_model; uint16_t machine_id; uint64_t prom_addr; uint64_t console_serial_base; }; int DMA_get_channel_mode (int nchan) { return 0; } int DMA_read_memory (int nchan, void *buf, int pos, int size) { return 0; } int DMA_write_memory (int nchan, void *buf, int pos, int size) { return 0; } 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_register_channel (int nchan, DMA_transfer_handler transfer_handler, void *opaque) { } static int fw_cfg_boot_set(void *opaque, const char *boot_device) { fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); return 0; } static int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size, const char *arch, ram_addr_t RAM_size, const char *boot_devices, uint32_t kernel_image, uint32_t kernel_size, const char *cmdline, uint32_t initrd_image, uint32_t initrd_size, uint32_t NVRAM_image, int width, int height, int depth, const uint8_t *macaddr) { unsigned int i; uint32_t start, end; uint8_t image[0x1ff0]; struct OpenBIOS_nvpart_v1 *part_header; memset(image, '\0', sizeof(image)); start = 0; // OpenBIOS nvram variables // Variable partition part_header = (struct OpenBIOS_nvpart_v1 *)&image[start]; part_header->signature = OPENBIOS_PART_SYSTEM; pstrcpy(part_header->name, sizeof(part_header->name), "system"); end = start + sizeof(struct OpenBIOS_nvpart_v1); for (i = 0; i < nb_prom_envs; i++) end = OpenBIOS_set_var(image, end, prom_envs[i]); // End marker image[end++] = '\0'; end = start + ((end - start + 15) & ~15); OpenBIOS_finish_partition(part_header, end - start); // free partition start = end; part_header = (struct OpenBIOS_nvpart_v1 *)&image[start]; part_header->signature = OPENBIOS_PART_FREE; pstrcpy(part_header->name, sizeof(part_header->name), "free"); end = 0x1fd0; OpenBIOS_finish_partition(part_header, end - start); Sun_init_header((struct Sun_nvram *)&image[0x1fd8], macaddr, 0x80); for (i = 0; i < sizeof(image); i++) m48t59_write(nvram, i, image[i]); return 0; } void pic_info(Monitor *mon) { } void irq_info(Monitor *mon) { } void cpu_check_irqs(CPUState *env) { uint32_t pil = env->pil_in | (env->softint & ~SOFTINT_TIMER) | ((env->softint & SOFTINT_TIMER) << 14); if (pil && (env->interrupt_index == 0 || (env->interrupt_index & ~15) == TT_EXTINT)) { unsigned int i; for (i = 15; i > 0; i--) { if (pil & (1 << i)) { int old_interrupt = env->interrupt_index; env->interrupt_index = TT_EXTINT | i; if (old_interrupt != env->interrupt_index) { DPRINTF("Set CPU IRQ %d\n", i); cpu_interrupt(env, CPU_INTERRUPT_HARD); } break; } } } else if (!pil && (env->interrupt_index & ~15) == TT_EXTINT) { DPRINTF("Reset CPU IRQ %d\n", env->interrupt_index & 15); env->interrupt_index = 0; cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); } } 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; env->pil_in |= 1 << irq; cpu_check_irqs(env); } else { DPRINTF("Lower CPU IRQ %d\n", irq); env->pil_in &= ~(1 << irq); cpu_check_irqs(env); } } void qemu_system_powerdown(void) { } typedef struct ResetData { CPUState *env; uint64_t reset_addr; } ResetData; static void main_cpu_reset(void *opaque) { ResetData *s = (ResetData *)opaque; CPUState *env = s->env; cpu_reset(env); env->tick_cmpr = TICK_INT_DIS | 0; ptimer_set_limit(env->tick, TICK_MAX, 1); ptimer_run(env->tick, 1); env->stick_cmpr = TICK_INT_DIS | 0; ptimer_set_limit(env->stick, TICK_MAX, 1); ptimer_run(env->stick, 1); env->hstick_cmpr = TICK_INT_DIS | 0; ptimer_set_limit(env->hstick, TICK_MAX, 1); ptimer_run(env->hstick, 1); env->gregs[1] = 0; // Memory start env->gregs[2] = ram_size; // Memory size env->gregs[3] = 0; // Machine description XXX env->pc = s->reset_addr; env->npc = env->pc + 4; } static void tick_irq(void *opaque) { CPUState *env = opaque; if (!(env->tick_cmpr & TICK_INT_DIS)) { env->softint |= SOFTINT_TIMER; cpu_interrupt(env, CPU_INTERRUPT_TIMER); } } static void stick_irq(void *opaque) { CPUState *env = opaque; if (!(env->stick_cmpr & TICK_INT_DIS)) { env->softint |= SOFTINT_STIMER; cpu_interrupt(env, CPU_INTERRUPT_TIMER); } } static void hstick_irq(void *opaque) { CPUState *env = opaque; if (!(env->hstick_cmpr & TICK_INT_DIS)) { cpu_interrupt(env, CPU_INTERRUPT_TIMER); } } void cpu_tick_set_count(void *opaque, uint64_t count) { ptimer_set_count(opaque, -count); } uint64_t cpu_tick_get_count(void *opaque) { return -ptimer_get_count(opaque); } void cpu_tick_set_limit(void *opaque, uint64_t limit) { ptimer_set_limit(opaque, -limit, 0); } static const int ide_iobase[2] = { 0x1f0, 0x170 }; static const int ide_iobase2[2] = { 0x3f6, 0x376 }; static const int ide_irq[2] = { 14, 15 }; static const int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 }; static const int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 }; static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc }; static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 }; static fdctrl_t *floppy_controller; static void ebus_mmio_mapfunc(PCIDevice *pci_dev, int region_num, uint32_t addr, uint32_t size, int type) { DPRINTF("Mapping region %d registers at %08x\n", region_num, addr); switch (region_num) { case 0: isa_mmio_init(addr, 0x1000000); break; case 1: isa_mmio_init(addr, 0x800000); break; } } /* EBUS (Eight bit bus) bridge */ static void pci_ebus_init(PCIBus *bus, int devfn) { PCIDevice *s; s = pci_register_device(bus, "EBUS", sizeof(*s), devfn, NULL, NULL); pci_config_set_vendor_id(s->config, PCI_VENDOR_ID_SUN); pci_config_set_device_id(s->config, PCI_DEVICE_ID_SUN_EBUS); s->config[0x04] = 0x06; // command = bus master, pci mem s->config[0x05] = 0x00; s->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error s->config[0x07] = 0x03; // status = medium devsel s->config[0x08] = 0x01; // revision s->config[0x09] = 0x00; // programming i/f pci_config_set_class(s->config, PCI_CLASS_BRIDGE_OTHER); s->config[0x0D] = 0x0a; // latency_timer s->config[0x0E] = 0x00; // header_type pci_register_io_region(s, 0, 0x1000000, PCI_ADDRESS_SPACE_MEM, ebus_mmio_mapfunc); pci_register_io_region(s, 1, 0x800000, PCI_ADDRESS_SPACE_MEM, ebus_mmio_mapfunc); } static void sun4uv_init(ram_addr_t RAM_size, int vga_ram_size, const char *boot_devices, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model, const struct hwdef *hwdef) { CPUState *env; char buf[1024]; m48t59_t *nvram; int ret, linux_boot; unsigned int i; ram_addr_t ram_offset, prom_offset; long initrd_size, kernel_size; PCIBus *pci_bus, *pci_bus2, *pci_bus3; QEMUBH *bh; qemu_irq *irq; int drive_index; BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; BlockDriverState *fd[MAX_FD]; void *fw_cfg; ResetData *reset_info; linux_boot = (kernel_filename != NULL); /* init CPUs */ if (!cpu_model) cpu_model = hwdef->default_cpu_model; env = cpu_init(cpu_model); if (!env) { fprintf(stderr, "Unable to find Sparc CPU definition\n"); exit(1); } bh = qemu_bh_new(tick_irq, env); env->tick = ptimer_init(bh); ptimer_set_period(env->tick, 1ULL); bh = qemu_bh_new(stick_irq, env); env->stick = ptimer_init(bh); ptimer_set_period(env->stick, 1ULL); bh = qemu_bh_new(hstick_irq, env); env->hstick = ptimer_init(bh); ptimer_set_period(env->hstick, 1ULL); reset_info = qemu_mallocz(sizeof(ResetData)); reset_info->env = env; reset_info->reset_addr = hwdef->prom_addr + 0x40ULL; qemu_register_reset(main_cpu_reset, reset_info); main_cpu_reset(reset_info); // Override warm reset address with cold start address env->pc = hwdef->prom_addr + 0x20ULL; env->npc = env->pc + 4; /* allocate RAM */ ram_offset = qemu_ram_alloc(RAM_size); cpu_register_physical_memory(0, RAM_size, ram_offset); prom_offset = qemu_ram_alloc(PROM_SIZE_MAX); cpu_register_physical_memory(hwdef->prom_addr, (PROM_SIZE_MAX + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK, prom_offset | IO_MEM_ROM); if (bios_name == NULL) bios_name = PROM_FILENAME; snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name); ret = load_elf(buf, hwdef->prom_addr - PROM_VADDR, NULL, NULL, NULL); if (ret < 0) { ret = load_image_targphys(buf, hwdef->prom_addr, (PROM_SIZE_MAX + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK); if (ret < 0) { fprintf(stderr, "qemu: could not load prom '%s'\n", buf); exit(1); } } kernel_size = 0; initrd_size = 0; if (linux_boot) { /* XXX: put correct offset */ kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL); if (kernel_size < 0) kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR, ram_size - KERNEL_LOAD_ADDR); if (kernel_size < 0) kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR, ram_size - KERNEL_LOAD_ADDR); if (kernel_size < 0) { fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); exit(1); } /* load initrd */ if (initrd_filename) { initrd_size = load_image_targphys(initrd_filename, INITRD_LOAD_ADDR, ram_size - INITRD_LOAD_ADDR); if (initrd_size < 0) { fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", initrd_filename); exit(1); } } 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); break; } } } } pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, NULL, &pci_bus2, &pci_bus3); isa_mem_base = VGA_BASE; pci_vga_init(pci_bus, vga_ram_size, 0, 0); // XXX Should be pci_bus3 pci_ebus_init(pci_bus, -1); i = 0; if (hwdef->console_serial_base) { serial_mm_init(hwdef->console_serial_base, 0, NULL, 115200, serial_hds[i], 1); i++; } for(; i < MAX_SERIAL_PORTS; i++) { if (serial_hds[i]) { serial_init(serial_io[i], NULL/*serial_irq[i]*/, 115200, serial_hds[i]); } } for(i = 0; i < MAX_PARALLEL_PORTS; i++) { if (parallel_hds[i]) { parallel_init(parallel_io[i], NULL/*parallel_irq[i]*/, parallel_hds[i]); } } for(i = 0; i < nb_nics; i++) pci_nic_init(pci_bus, &nd_table[i], -1, "ne2k_pci"); irq = qemu_allocate_irqs(cpu_set_irq, env, MAX_PILS); 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++) { drive_index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); if (drive_index != -1) hd[i] = drives_table[drive_index].bdrv; else hd[i] = NULL; } pci_cmd646_ide_init(pci_bus, hd, 1); /* FIXME: wire up interrupts. */ i8042_init(NULL/*1*/, NULL/*12*/, 0x60); for(i = 0; i < MAX_FD; i++) { drive_index = drive_get_index(IF_FLOPPY, 0, i); if (drive_index != -1) fd[i] = drives_table[drive_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, kernel_cmdline, INITRD_LOAD_ADDR, initrd_size, /* XXX: need an option to load a NVRAM image */ 0, graphic_width, graphic_height, graphic_depth, (uint8_t *)&nd_table[0].macaddr); fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0); fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1); fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id); fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, KERNEL_LOAD_ADDR); 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); } else { fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); } fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, INITRD_LOAD_ADDR); fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, boot_devices[0]); qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); } enum { sun4u_id = 0, sun4v_id = 64, niagara_id, }; static const struct hwdef hwdefs[] = { /* Sun4u generic PC-like machine */ { .default_cpu_model = "TI UltraSparc II", .machine_id = sun4u_id, .prom_addr = 0x1fff0000000ULL, .console_serial_base = 0, }, /* Sun4v generic PC-like machine */ { .default_cpu_model = "Sun UltraSparc T1", .machine_id = sun4v_id, .prom_addr = 0x1fff0000000ULL, .console_serial_base = 0, }, /* Sun4v generic Niagara machine */ { .default_cpu_model = "Sun UltraSparc T1", .machine_id = niagara_id, .prom_addr = 0xfff0000000ULL, .console_serial_base = 0xfff0c2c000ULL, }, }; /* Sun4u hardware initialisation */ static void sun4u_init(ram_addr_t RAM_size, int vga_ram_size, const char *boot_devices, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { sun4uv_init(RAM_size, vga_ram_size, boot_devices, kernel_filename, kernel_cmdline, initrd_filename, cpu_model, &hwdefs[0]); } /* Sun4v hardware initialisation */ static void sun4v_init(ram_addr_t RAM_size, int vga_ram_size, const char *boot_devices, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { sun4uv_init(RAM_size, vga_ram_size, boot_devices, kernel_filename, kernel_cmdline, initrd_filename, cpu_model, &hwdefs[1]); } /* Niagara hardware initialisation */ static void niagara_init(ram_addr_t RAM_size, int vga_ram_size, const char *boot_devices, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { sun4uv_init(RAM_size, vga_ram_size, boot_devices, kernel_filename, kernel_cmdline, initrd_filename, cpu_model, &hwdefs[2]); } QEMUMachine sun4u_machine = { .name = "sun4u", .desc = "Sun4u platform", .init = sun4u_init, .ram_require = PROM_SIZE_MAX + VGA_RAM_SIZE, .max_cpus = 1, // XXX for now }; QEMUMachine sun4v_machine = { .name = "sun4v", .desc = "Sun4v platform", .init = sun4v_init, .ram_require = PROM_SIZE_MAX + VGA_RAM_SIZE, .max_cpus = 1, // XXX for now }; QEMUMachine niagara_machine = { .name = "Niagara", .desc = "Sun4v platform, Niagara", .init = niagara_init, .ram_require = PROM_SIZE_MAX + VGA_RAM_SIZE, .max_cpus = 1, // XXX for now };