/* * QEMU Sun4u 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 "vl.h" #include "m48t59.h" #define KERNEL_LOAD_ADDR 0x00404000 #define CMDLINE_ADDR 0x003ff000 #define INITRD_LOAD_ADDR 0x00300000 #define PROM_SIZE_MAX (512 * 1024) #define PROM_ADDR 0x1fff0000000ULL #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 /* TSC handling */ uint64_t cpu_get_tsc() { return qemu_get_clock(vm_clock); } 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_run (void) {} void DMA_init (int high_page_enable) {} void DMA_register_channel (int nchan, DMA_transfer_handler transfer_handler, void *opaque) { } /* NVRAM helpers */ void NVRAM_set_byte (m48t59_t *nvram, uint32_t addr, uint8_t value) { m48t59_write(nvram, addr, value); } uint8_t NVRAM_get_byte (m48t59_t *nvram, uint32_t addr) { return m48t59_read(nvram, addr); } void NVRAM_set_word (m48t59_t *nvram, uint32_t addr, uint16_t value) { m48t59_write(nvram, addr, value >> 8); m48t59_write(nvram, addr + 1, value & 0xFF); } uint16_t NVRAM_get_word (m48t59_t *nvram, uint32_t addr) { uint16_t tmp; tmp = m48t59_read(nvram, addr) << 8; tmp |= m48t59_read(nvram, addr + 1); return tmp; } void NVRAM_set_lword (m48t59_t *nvram, uint32_t addr, uint32_t value) { m48t59_write(nvram, addr, value >> 24); m48t59_write(nvram, addr + 1, (value >> 16) & 0xFF); m48t59_write(nvram, addr + 2, (value >> 8) & 0xFF); m48t59_write(nvram, addr + 3, value & 0xFF); } uint32_t NVRAM_get_lword (m48t59_t *nvram, uint32_t addr) { uint32_t tmp; tmp = m48t59_read(nvram, addr) << 24; tmp |= m48t59_read(nvram, addr + 1) << 16; tmp |= m48t59_read(nvram, addr + 2) << 8; tmp |= m48t59_read(nvram, addr + 3); return tmp; } void NVRAM_set_string (m48t59_t *nvram, uint32_t addr, const unsigned char *str, uint32_t max) { int i; for (i = 0; i < max && str[i] != '\0'; i++) { m48t59_write(nvram, addr + i, str[i]); } m48t59_write(nvram, addr + max - 1, '\0'); } int NVRAM_get_string (m48t59_t *nvram, uint8_t *dst, uint16_t addr, int max) { int i; memset(dst, 0, max); for (i = 0; i < max; i++) { dst[i] = NVRAM_get_byte(nvram, addr + i); if (dst[i] == '\0') break; } return i; } static uint16_t NVRAM_crc_update (uint16_t prev, uint16_t value) { uint16_t tmp; uint16_t pd, pd1, pd2; tmp = prev >> 8; pd = prev ^ value; pd1 = pd & 0x000F; pd2 = ((pd >> 4) & 0x000F) ^ pd1; tmp ^= (pd1 << 3) | (pd1 << 8); tmp ^= pd2 | (pd2 << 7) | (pd2 << 12); return tmp; } uint16_t NVRAM_compute_crc (m48t59_t *nvram, uint32_t start, uint32_t count) { uint32_t i; uint16_t crc = 0xFFFF; int odd; odd = count & 1; count &= ~1; for (i = 0; i != count; i++) { crc = NVRAM_crc_update(crc, NVRAM_get_word(nvram, start + i)); } if (odd) { crc = NVRAM_crc_update(crc, NVRAM_get_byte(nvram, start + i) << 8); } return crc; } static uint32_t nvram_set_var (m48t59_t *nvram, uint32_t addr, const unsigned char *str) { uint32_t len; len = strlen(str) + 1; NVRAM_set_string(nvram, addr, str, len); return addr + len; } static void nvram_finish_partition (m48t59_t *nvram, uint32_t start, uint32_t end) { unsigned int i, sum; // Length divided by 16 m48t59_write(nvram, start + 2, ((end - start) >> 12) & 0xff); m48t59_write(nvram, start + 3, ((end - start) >> 4) & 0xff); // Checksum sum = m48t59_read(nvram, start); for (i = 0; i < 14; i++) { sum += m48t59_read(nvram, start + 2 + i); sum = (sum + ((sum & 0xff00) >> 8)) & 0xff; } m48t59_write(nvram, start + 1, sum & 0xff); } extern int nographic; int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size, const unsigned char *arch, uint32_t RAM_size, int boot_device, 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) { uint16_t crc; unsigned int i; uint32_t start, end; /* Set parameters for Open Hack'Ware BIOS */ NVRAM_set_string(nvram, 0x00, "QEMU_BIOS", 16); NVRAM_set_lword(nvram, 0x10, 0x00000002); /* structure v2 */ NVRAM_set_word(nvram, 0x14, NVRAM_size); NVRAM_set_string(nvram, 0x20, arch, 16); NVRAM_set_byte(nvram, 0x2f, nographic & 0xff); NVRAM_set_lword(nvram, 0x30, RAM_size); NVRAM_set_byte(nvram, 0x34, boot_device); NVRAM_set_lword(nvram, 0x38, kernel_image); NVRAM_set_lword(nvram, 0x3C, kernel_size); if (cmdline) { /* XXX: put the cmdline in NVRAM too ? */ strcpy(phys_ram_base + CMDLINE_ADDR, cmdline); NVRAM_set_lword(nvram, 0x40, CMDLINE_ADDR); NVRAM_set_lword(nvram, 0x44, strlen(cmdline)); } else { NVRAM_set_lword(nvram, 0x40, 0); NVRAM_set_lword(nvram, 0x44, 0); } NVRAM_set_lword(nvram, 0x48, initrd_image); NVRAM_set_lword(nvram, 0x4C, initrd_size); NVRAM_set_lword(nvram, 0x50, NVRAM_image); NVRAM_set_word(nvram, 0x54, width); NVRAM_set_word(nvram, 0x56, height); NVRAM_set_word(nvram, 0x58, depth); crc = NVRAM_compute_crc(nvram, 0x00, 0xF8); NVRAM_set_word(nvram, 0xFC, crc); // OpenBIOS nvram variables // Variable partition start = 252; m48t59_write(nvram, start, 0x70); NVRAM_set_string(nvram, start + 4, "system", 12); end = start + 16; for (i = 0; i < nb_prom_envs; i++) end = nvram_set_var(nvram, end, prom_envs[i]); m48t59_write(nvram, end++ , 0); end = start + ((end - start + 15) & ~15); nvram_finish_partition(nvram, start, end); // free partition start = end; m48t59_write(nvram, start, 0x7f); NVRAM_set_string(nvram, start + 4, "free", 12); end = 0x1fd0; nvram_finish_partition(nvram, start, end); return 0; } void pic_info() { } void irq_info() { } void qemu_system_powerdown(void) { } static void main_cpu_reset(void *opaque) { CPUState *env = opaque; cpu_reset(env); } 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; /* Sun4u hardware initialisation */ static void sun4u_init(int ram_size, int vga_ram_size, int boot_device, DisplayState *ds, const char **fd_filename, int snapshot, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { CPUState *env; char buf[1024]; m48t59_t *nvram; int ret, linux_boot; unsigned int i; long prom_offset, initrd_size, kernel_size; PCIBus *pci_bus; const sparc_def_t *def; linux_boot = (kernel_filename != NULL); /* init CPUs */ if (cpu_model == NULL) cpu_model = "TI UltraSparc II"; sparc_find_by_name(cpu_model, &def); if (def == NULL) { fprintf(stderr, "Unable to find Sparc CPU definition\n"); exit(1); } env = cpu_init(); cpu_sparc_register(env, def); register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); qemu_register_reset(main_cpu_reset, env); /* allocate RAM */ cpu_register_physical_memory(0, ram_size, 0); prom_offset = ram_size + vga_ram_size; cpu_register_physical_memory(PROM_ADDR, (PROM_SIZE_MAX + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK, prom_offset | IO_MEM_ROM); snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAME); ret = load_elf(buf, 0, NULL, NULL, NULL); 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, phys_ram_base + KERNEL_LOAD_ADDR); if (kernel_size < 0) kernel_size = load_image(kernel_filename, phys_ram_base + 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(initrd_filename, phys_ram_base + 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_raw(phys_ram_base + KERNEL_LOAD_ADDR + i) == 0x48647253) { // HdrS stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR); stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 20, initrd_size); break; } } } } pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, NULL); isa_mem_base = VGA_BASE; pci_cirrus_vga_init(pci_bus, ds, phys_ram_base + ram_size, ram_size, vga_ram_size); for(i = 0; i < MAX_SERIAL_PORTS; i++) { if (serial_hds[i]) { serial_init(serial_io[i], NULL/*serial_irq[i]*/, 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++) { if (!nd_table[i].model) nd_table[i].model = "ne2k_pci"; pci_nic_init(pci_bus, &nd_table[i], -1); } pci_cmd646_ide_init(pci_bus, bs_table, 1); /* FIXME: wire up interrupts. */ i8042_init(NULL/*1*/, NULL/*12*/, 0x60); floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd_table); nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59); sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", ram_size, boot_device, 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); } QEMUMachine sun4u_machine = { "sun4u", "Sun4u platform", sun4u_init, };