/* * GRUB -- GRand Unified Bootloader * Copyright (C) 2009 Free Software Foundation, Inc. * * GRUB is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GRUB is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GRUB. If not, see . */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define min(a,b) (((a) < (b)) ? (a) : (b)) #define max(a,b) (((a) > (b)) ? (a) : (b)) #define DEFAULT_VIDEO_MODE "auto" char grub_xnu_cmdline[1024]; grub_uint32_t grub_xnu_entry_point, grub_xnu_arg1, grub_xnu_stack; /* Aliases set for some tables. */ struct tbl_alias { grub_efi_guid_t guid; char *name; }; struct tbl_alias table_aliases[] = { {GRUB_EFI_ACPI_20_TABLE_GUID, "ACPI_20"}, {GRUB_EFI_ACPI_TABLE_GUID, "ACPI"}, }; struct grub_xnu_devprop_device_descriptor { struct grub_xnu_devprop_device_descriptor *next; struct property_descriptor *properties; struct grub_efi_device_path *path; int pathlen; }; static int utf16_strlen (grub_uint16_t *in) { int i; for (i = 0; in[i]; i++); return i; } /* Read frequency from a string in MHz and return it in Hz. */ static grub_uint64_t readfrequency (const char *str) { grub_uint64_t num = 0; int mul = 1000000; int found = 0; while (*str) { unsigned long digit; digit = grub_tolower (*str) - '0'; if (digit > 9) break; found = 1; num = num * 10 + digit; str++; } num *= 1000000; if (*str == '.') { str++; while (*str) { unsigned long digit; digit = grub_tolower (*str) - '0'; if (digit > 9) break; found = 1; mul /= 10; num = num + mul * digit; str++; } } if (! found) return 0; return num; } /* Thanks to Kabyl for precious information about Intel architecture. */ static grub_uint64_t guessfsb (void) { const grub_uint64_t sane_value = 100000000; grub_uint32_t manufacturer[3], max_cpuid, capabilities, msrlow; grub_uint64_t start_tsc; grub_uint64_t end_tsc; grub_uint64_t tsc_ticks_per_ms; if (! grub_cpu_is_cpuid_supported ()) return sane_value; #ifdef APPLE_CC asm volatile ("movl $0, %%eax\n" #ifdef __x86_64__ "push %%rbx\n" #else "push %%ebx\n" #endif "cpuid\n" #ifdef __x86_64__ "pop %%rbx\n" #else "pop %%ebx\n" #endif : "=a" (max_cpuid), "=d" (manufacturer[1]), "=c" (manufacturer[2])); /* Only Intel for now is done. */ if (grub_memcmp (manufacturer + 1, "ineIntel", 12) != 0) return sane_value; #else asm volatile ("movl $0, %%eax\n" "cpuid" : "=a" (max_cpuid), "=b" (manufacturer[0]), "=d" (manufacturer[1]), "=c" (manufacturer[2])); /* Only Intel for now is done. */ if (grub_memcmp (manufacturer, "GenuineIntel", 12) != 0) return sane_value; #endif /* Check Speedstep. */ if (max_cpuid < 1) return sane_value; #ifdef APPLE_CC asm volatile ("movl $1, %%eax\n" #ifdef __x86_64__ "push %%rbx\n" #else "push %%ebx\n" #endif "cpuid\n" #ifdef __x86_64__ "pop %%rbx\n" #else "pop %%ebx\n" #endif : "=c" (capabilities): : "%rax", "%rdx"); #else asm volatile ("movl $1, %%eax\n" "cpuid" : "=c" (capabilities): : "%rax", "%rbx", "%rdx"); #endif if (! (capabilities & (1 << 7))) return sane_value; /* Calibrate the TSC rate. */ start_tsc = grub_get_tsc (); grub_pit_wait (0xffff); end_tsc = grub_get_tsc (); tsc_ticks_per_ms = grub_divmod64 (end_tsc - start_tsc, 55, 0); /* Read the multiplier. */ asm volatile ("movl $0x198, %%ecx\n" "rdmsr" : "=d" (msrlow) : : "%ecx", "%eax"); return grub_divmod64 (2000 * tsc_ticks_per_ms, ((msrlow >> 7) & 0x3e) + ((msrlow >> 14) & 1), 0); } struct property_descriptor { struct property_descriptor *next; grub_uint8_t *name; grub_uint16_t *name16; int name16len; int length; void *data; }; struct grub_xnu_devprop_device_descriptor *devices = 0; grub_err_t grub_xnu_devprop_remove_property (struct grub_xnu_devprop_device_descriptor *dev, char *name) { struct property_descriptor *prop; prop = grub_named_list_find (GRUB_AS_NAMED_LIST_P (&dev->properties), name); if (!prop) return GRUB_ERR_NONE; grub_free (prop->name); grub_free (prop->name16); grub_free (prop->data); grub_list_remove (GRUB_AS_LIST_P (&dev->properties), GRUB_AS_LIST (prop)); return GRUB_ERR_NONE; } grub_err_t grub_xnu_devprop_remove_device (struct grub_xnu_devprop_device_descriptor *dev) { void *t; struct property_descriptor *prop; grub_list_remove (GRUB_AS_LIST_P (&devices), GRUB_AS_LIST (dev)); for (prop = dev->properties; prop; ) { grub_free (prop->name); grub_free (prop->name16); grub_free (prop->data); t = prop; prop = prop->next; grub_free (t); } grub_free (dev->path); grub_free (dev); return GRUB_ERR_NONE; } struct grub_xnu_devprop_device_descriptor * grub_xnu_devprop_add_device (struct grub_efi_device_path *path, int length) { struct grub_xnu_devprop_device_descriptor *ret; ret = grub_zalloc (sizeof (*ret)); if (!ret) return 0; ret->path = grub_malloc (length); if (!ret->path) { grub_free (ret); return 0; } ret->pathlen = length; grub_memcpy (ret->path, path, length); grub_list_push (GRUB_AS_LIST_P (&devices), GRUB_AS_LIST (ret)); return ret; } static grub_err_t grub_xnu_devprop_add_property (struct grub_xnu_devprop_device_descriptor *dev, grub_uint8_t *utf8, grub_uint16_t *utf16, int utf16len, void *data, int datalen) { struct property_descriptor *prop; prop = grub_malloc (sizeof (*prop)); if (!prop) return grub_errno; prop->name = utf8; prop->name16 = utf16; prop->name16len = utf16len; prop->length = datalen; prop->data = grub_malloc (prop->length); if (!prop->data) { grub_free (prop); grub_free (prop->name); grub_free (prop->name16); return grub_errno; } grub_memcpy (prop->data, data, prop->length); grub_list_push (GRUB_AS_LIST_P (&dev->properties), GRUB_AS_LIST (prop)); return GRUB_ERR_NONE; } grub_err_t grub_xnu_devprop_add_property_utf8 (struct grub_xnu_devprop_device_descriptor *dev, char *name, void *data, int datalen) { grub_uint8_t *utf8; grub_uint16_t *utf16; int len, utf16len; grub_err_t err; utf8 = (grub_uint8_t *) grub_strdup (name); if (!utf8) return grub_errno; len = grub_strlen (name); utf16 = grub_malloc (sizeof (grub_uint16_t) * len); if (!utf16) { grub_free (utf8); return grub_errno; } utf16len = grub_utf8_to_utf16 (utf16, len, utf8, len, NULL); if (utf16len < 0) { grub_free (utf8); grub_free (utf16); return grub_errno; } err = grub_xnu_devprop_add_property (dev, utf8, utf16, utf16len, data, datalen); if (err) { grub_free (utf8); grub_free (utf16); return err; } return GRUB_ERR_NONE; } grub_err_t grub_xnu_devprop_add_property_utf16 (struct grub_xnu_devprop_device_descriptor *dev, grub_uint16_t *name, int namelen, void *data, int datalen) { grub_uint8_t *utf8; grub_uint16_t *utf16; grub_err_t err; utf16 = grub_malloc (sizeof (grub_uint16_t) * namelen); if (!utf16) return grub_errno; grub_memcpy (utf16, name, sizeof (grub_uint16_t) * namelen); utf8 = grub_malloc (namelen * 4 + 1); if (!utf8) { grub_free (utf8); return grub_errno; } *grub_utf16_to_utf8 ((grub_uint8_t *) utf8, name, namelen) = '\0'; err = grub_xnu_devprop_add_property (dev, utf8, utf16, namelen, data, datalen); if (err) { grub_free (utf8); grub_free (utf16); return err; } return GRUB_ERR_NONE; } static inline int hextoval (char c) { if (c >= '0' && c <= '9') return c - '0'; if (c >= 'a' && c <= 'z') return c - 'a' + 10; if (c >= 'A' && c <= 'Z') return c - 'A' + 10; return 0; } void grub_cpu_xnu_unload (void) { struct grub_xnu_devprop_device_descriptor *dev1, *dev2; for (dev1 = devices; dev1; ) { dev2 = dev1->next; grub_xnu_devprop_remove_device (dev1); dev1 = dev2; } } static grub_err_t grub_cpu_xnu_fill_devprop (void) { struct grub_xnu_devtree_key *efikey; int total_length = sizeof (struct grub_xnu_devprop_header); struct grub_xnu_devtree_key *devprop; struct grub_xnu_devprop_device_descriptor *device; void *ptr; struct grub_xnu_devprop_header *head; void *t; int numdevs = 0; /* The key "efi". */ efikey = grub_xnu_create_key (&grub_xnu_devtree_root, "efi"); if (! efikey) return grub_errno; for (device = devices; device; device = device->next) { struct property_descriptor *propdesc; total_length += sizeof (struct grub_xnu_devprop_device_header); total_length += device->pathlen; for (propdesc = device->properties; propdesc; propdesc = propdesc->next) { total_length += sizeof (grub_uint32_t); total_length += sizeof (grub_uint16_t) * (propdesc->name16len + 1); total_length += sizeof (grub_uint32_t); total_length += propdesc->length; } numdevs++; } devprop = grub_xnu_create_value (&(efikey->first_child), "device-properties"); if (devprop) { devprop->data = grub_malloc (total_length); devprop->datasize = total_length; } ptr = devprop->data; head = ptr; ptr = head + 1; head->length = total_length; head->alwaysone = 1; head->num_devices = numdevs; for (device = devices; device; ) { struct grub_xnu_devprop_device_header *devhead; struct property_descriptor *propdesc; devhead = ptr; devhead->num_values = 0; ptr = devhead + 1; grub_memcpy (ptr, device->path, device->pathlen); ptr = (char *) ptr + device->pathlen; for (propdesc = device->properties; propdesc; ) { grub_uint32_t *len; grub_uint16_t *name; void *data; len = ptr; *len = 2 * propdesc->name16len + sizeof (grub_uint16_t) + sizeof (grub_uint32_t); ptr = len + 1; name = ptr; grub_memcpy (name, propdesc->name16, 2 * propdesc->name16len); name += propdesc->name16len; /* NUL terminator. */ *name = 0; ptr = name + 1; len = ptr; *len = propdesc->length + sizeof (grub_uint32_t); data = len + 1; ptr = data; grub_memcpy (ptr, propdesc->data, propdesc->length); ptr = (char *) ptr + propdesc->length; grub_free (propdesc->name); grub_free (propdesc->name16); grub_free (propdesc->data); t = propdesc; propdesc = propdesc->next; grub_free (t); devhead->num_values++; } devhead->length = (char *) ptr - (char *) devhead; t = device; device = device->next; grub_free (t); } devices = 0; return GRUB_ERR_NONE; } static grub_err_t grub_cmd_devprop_load (grub_command_t cmd __attribute__ ((unused)), int argc, char *args[]) { grub_file_t file; void *buf, *bufstart, *bufend; struct grub_xnu_devprop_header *head; grub_size_t size; unsigned i, j; if (argc != 1) return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required"); file = grub_gzfile_open (args[0], 1); if (! file) return grub_error (GRUB_ERR_FILE_NOT_FOUND, "couldn't load device-propertie dump"); size = grub_file_size (file); buf = grub_malloc (size); if (!buf) { grub_file_close (file); return grub_errno; } if (grub_file_read (file, buf, size) != (grub_ssize_t) size) { grub_file_close (file); return grub_errno; } grub_file_close (file); bufstart = buf; bufend = (char *) buf + size; head = buf; buf = head + 1; for (i = 0; i < grub_le_to_cpu32 (head->num_devices) && buf < bufend; i++) { struct grub_efi_device_path *dp, *dpstart; struct grub_xnu_devprop_device_descriptor *dev; struct grub_xnu_devprop_device_header *devhead; devhead = buf; buf = devhead + 1; dpstart = buf; do { dp = buf; buf = (char *) buf + GRUB_EFI_DEVICE_PATH_LENGTH (dp); } while (!GRUB_EFI_END_ENTIRE_DEVICE_PATH (dp) && buf < bufend); dev = grub_xnu_devprop_add_device (dpstart, (char *) buf - (char *) dpstart); for (j = 0; j < grub_le_to_cpu32 (devhead->num_values) && buf < bufend; j++) { grub_uint32_t *namelen; grub_uint32_t *datalen; grub_uint16_t *utf16; void *data; grub_err_t err; namelen = buf; buf = namelen + 1; if (buf >= bufend) break; utf16 = buf; buf = (char *) buf + *namelen - sizeof (grub_uint32_t); if (buf >= bufend) break; datalen = buf; buf = datalen + 1; if (buf >= bufend) break; data = buf; buf = (char *) buf + *datalen - sizeof (grub_uint32_t); if (buf >= bufend) break; err = grub_xnu_devprop_add_property_utf16 (dev, utf16, (*namelen - sizeof (grub_uint32_t) - sizeof (grub_uint16_t)) / sizeof (grub_uint16_t), data, *datalen - sizeof (grub_uint32_t)); if (err) { grub_free (bufstart); return err; } } } grub_free (bufstart); return GRUB_ERR_NONE; } /* Fill device tree. */ /* FIXME: some entries may be platform-agnostic. Move them to loader/xnu.c. */ grub_err_t grub_cpu_xnu_fill_devicetree (void) { struct grub_xnu_devtree_key *efikey; struct grub_xnu_devtree_key *cfgtablekey; struct grub_xnu_devtree_key *curval; struct grub_xnu_devtree_key *runtimesrvkey; struct grub_xnu_devtree_key *platformkey; unsigned i, j; /* The value "model". */ /* FIXME: may this value be sometimes different? */ curval = grub_xnu_create_value (&grub_xnu_devtree_root, "model"); if (! curval) return grub_errno; curval->datasize = sizeof ("ACPI"); curval->data = grub_strdup ("ACPI"); curval = grub_xnu_create_value (&grub_xnu_devtree_root, "compatible"); if (! curval) return grub_errno; curval->datasize = sizeof ("ACPI"); curval->data = grub_strdup ("ACPI"); /* The key "efi". */ efikey = grub_xnu_create_key (&grub_xnu_devtree_root, "efi"); if (! efikey) return grub_errno; /* Information about firmware. */ curval = grub_xnu_create_value (&(efikey->first_child), "firmware-revision"); if (! curval) return grub_errno; curval->datasize = (SYSTEM_TABLE_SIZEOF (firmware_revision)); curval->data = grub_malloc (curval->datasize); if (! curval->data) return grub_errno; grub_memcpy (curval->data, (SYSTEM_TABLE_VAR(firmware_revision)), curval->datasize); curval = grub_xnu_create_value (&(efikey->first_child), "firmware-vendor"); if (! curval) return grub_errno; curval->datasize = 2 * (utf16_strlen (SYSTEM_TABLE_PTR (firmware_vendor)) + 1); curval->data = grub_malloc (curval->datasize); if (! curval->data) return grub_errno; grub_memcpy (curval->data, SYSTEM_TABLE_PTR (firmware_vendor), curval->datasize); curval = grub_xnu_create_value (&(efikey->first_child), "firmware-abi"); if (! curval) return grub_errno; curval->datasize = sizeof ("EFI32"); curval->data = grub_malloc (curval->datasize); if (! curval->data) return grub_errno; if (SIZEOF_OF_UINTN == 4) grub_memcpy (curval->data, "EFI32", curval->datasize); else grub_memcpy (curval->data, "EFI64", curval->datasize); /* The key "platform". */ platformkey = grub_xnu_create_key (&(efikey->first_child), "platform"); if (! platformkey) return grub_errno; /* Pass FSB frequency to the kernel. */ curval = grub_xnu_create_value (&(platformkey->first_child), "FSBFrequency"); if (! curval) return grub_errno; curval->datasize = sizeof (grub_uint64_t); curval->data = grub_malloc (curval->datasize); if (!curval->data) return grub_errno; /* First see if user supplies the value. */ char *fsbvar = grub_env_get ("fsb"); if (! fsbvar) *((grub_uint64_t *) curval->data) = 0; else *((grub_uint64_t *) curval->data) = readfrequency (fsbvar); /* Try autodetect. */ if (! *((grub_uint64_t *) curval->data)) *((grub_uint64_t *) curval->data) = guessfsb (); grub_dprintf ("xnu", "fsb autodetected as %llu\n", (unsigned long long) *((grub_uint64_t *) curval->data)); cfgtablekey = grub_xnu_create_key (&(efikey->first_child), "configuration-table"); if (!cfgtablekey) return grub_errno; /* Fill "configuration-table" key. */ for (i = 0; i < SYSTEM_TABLE (num_table_entries); i++) { void *ptr; struct grub_xnu_devtree_key *curkey; grub_efi_guid_t guid; char guidbuf[64]; /* Retrieve current key. */ #ifdef GRUB_MACHINE_EFI { ptr = (void *) grub_efi_system_table->configuration_table[i].vendor_table; guid = grub_efi_system_table->configuration_table[i].vendor_guid; } #else if (SIZEOF_OF_UINTN == 4) { ptr = UINT_TO_PTR (((grub_efiemu_configuration_table32_t *) SYSTEM_TABLE_PTR (configuration_table))[i] .vendor_table); guid = ((grub_efiemu_configuration_table32_t *) SYSTEM_TABLE_PTR (configuration_table))[i].vendor_guid; } else { ptr = UINT_TO_PTR (((grub_efiemu_configuration_table64_t *) SYSTEM_TABLE_PTR (configuration_table))[i] .vendor_table); guid = ((grub_efiemu_configuration_table64_t *) SYSTEM_TABLE_PTR (configuration_table))[i].vendor_guid; } #endif /* The name of key for new table. */ grub_snprintf (guidbuf, sizeof (guidbuf), "%08x-%04x-%04x-%02x%02x-", guid.data1, guid.data2, guid.data3, guid.data4[0], guid.data4[1]); for (j = 2; j < 8; j++) grub_snprintf (guidbuf + grub_strlen (guidbuf), sizeof (guidbuf) - grub_strlen (guidbuf), "%02x", guid.data4[j]); /* For some reason GUID has to be in uppercase. */ for (j = 0; guidbuf[j] ; j++) if (guidbuf[j] >= 'a' && guidbuf[j] <= 'f') guidbuf[j] += 'A' - 'a'; curkey = grub_xnu_create_key (&(cfgtablekey->first_child), guidbuf); if (! curkey) return grub_errno; curval = grub_xnu_create_value (&(curkey->first_child), "guid"); if (! curval) return grub_errno; curval->datasize = sizeof (guid); curval->data = grub_malloc (curval->datasize); if (! curval->data) return grub_errno; grub_memcpy (curval->data, &guid, curval->datasize); /* The value "table". */ curval = grub_xnu_create_value (&(curkey->first_child), "table"); if (! curval) return grub_errno; curval->datasize = SIZEOF_OF_UINTN; curval->data = grub_malloc (curval->datasize); if (! curval->data) return grub_errno; if (SIZEOF_OF_UINTN == 4) *((grub_uint32_t *)curval->data) = PTR_TO_UINT32 (ptr); else *((grub_uint64_t *)curval->data) = PTR_TO_UINT64 (ptr); /* Create alias. */ for (j = 0; j < sizeof (table_aliases) / sizeof (table_aliases[0]); j++) if (grub_memcmp (&table_aliases[j].guid, &guid, sizeof (guid)) == 0) break; if (j != sizeof (table_aliases) / sizeof (table_aliases[0])) { curval = grub_xnu_create_value (&(curkey->first_child), "alias"); if (!curval) return grub_errno; curval->datasize = grub_strlen (table_aliases[j].name) + 1; curval->data = grub_malloc (curval->datasize); if (!curval->data) return grub_errno; grub_memcpy (curval->data, table_aliases[j].name, curval->datasize); } } /* Create and fill "runtime-services" key. */ runtimesrvkey = grub_xnu_create_key (&(efikey->first_child), "runtime-services"); if (! runtimesrvkey) return grub_errno; curval = grub_xnu_create_value (&(runtimesrvkey->first_child), "table"); if (! curval) return grub_errno; curval->datasize = SIZEOF_OF_UINTN; curval->data = grub_malloc (curval->datasize); if (! curval->data) return grub_errno; if (SIZEOF_OF_UINTN == 4) *((grub_uint32_t *) curval->data) = PTR_TO_UINT32 (SYSTEM_TABLE_PTR (runtime_services)); else *((grub_uint64_t *) curval->data) = PTR_TO_UINT64 (SYSTEM_TABLE_PTR (runtime_services)); return GRUB_ERR_NONE; } grub_err_t grub_xnu_boot_resume (void) { struct grub_relocator32_state state; state.esp = grub_xnu_stack; state.ebp = grub_xnu_stack; state.eip = grub_xnu_entry_point; state.eax = grub_xnu_arg1; return grub_relocator32_boot (grub_xnu_relocator, state); } /* Setup video for xnu. */ static grub_err_t grub_xnu_set_video (struct grub_xnu_boot_params *params) { struct grub_video_mode_info mode_info; int ret; char *tmp; const char *modevar; void *framebuffer; grub_err_t err; struct grub_video_bitmap *bitmap = NULL; modevar = grub_env_get ("gfxpayload"); /* Consider only graphical 32-bit deep modes. */ if (! modevar || *modevar == 0) err = grub_video_set_mode (DEFAULT_VIDEO_MODE, GRUB_VIDEO_MODE_TYPE_PURE_TEXT | GRUB_VIDEO_MODE_TYPE_DEPTH_MASK, 32 << GRUB_VIDEO_MODE_TYPE_DEPTH_POS); else { tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar); if (! tmp) return grub_errno; err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT | GRUB_VIDEO_MODE_TYPE_DEPTH_MASK, 32 << GRUB_VIDEO_MODE_TYPE_DEPTH_POS); grub_free (tmp); } if (err) return err; ret = grub_video_get_info (&mode_info); if (ret) return grub_error (GRUB_ERR_IO, "couldn't retrieve video parameters"); if (grub_xnu_bitmap) { if (grub_xnu_bitmap_mode == GRUB_XNU_BITMAP_STRETCH) err = grub_video_bitmap_create_scaled (&bitmap, mode_info.width, mode_info.height, grub_xnu_bitmap, GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST); else bitmap = grub_xnu_bitmap; } if (bitmap) { if (grub_xnu_bitmap_mode == GRUB_XNU_BITMAP_STRETCH) err = grub_video_bitmap_create_scaled (&bitmap, mode_info.width, mode_info.height, grub_xnu_bitmap, GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST); else bitmap = grub_xnu_bitmap; } if (bitmap) { int x, y; x = mode_info.width - bitmap->mode_info.width; x /= 2; y = mode_info.height - bitmap->mode_info.height; y /= 2; err = grub_video_blit_bitmap (bitmap, GRUB_VIDEO_BLIT_REPLACE, x > 0 ? x : 0, y > 0 ? y : 0, x < 0 ? -x : 0, y < 0 ? -y : 0, min (bitmap->mode_info.width, mode_info.width), min (bitmap->mode_info.height, mode_info.height)); } if (err) { grub_print_error (); grub_errno = GRUB_ERR_NONE; bitmap = 0; } ret = grub_video_get_info_and_fini (&mode_info, &framebuffer); if (ret) return grub_error (GRUB_ERR_IO, "couldn't retrieve video parameters"); params->lfb_width = mode_info.width; params->lfb_height = mode_info.height; params->lfb_depth = mode_info.bpp; params->lfb_line_len = mode_info.pitch; params->lfb_base = PTR_TO_UINT32 (framebuffer); params->lfb_mode = bitmap ? GRUB_XNU_VIDEO_SPLASH : GRUB_XNU_VIDEO_TEXT_IN_VIDEO; return GRUB_ERR_NONE; } /* Boot xnu. */ grub_err_t grub_xnu_boot (void) { struct grub_xnu_boot_params *bootparams; grub_addr_t bootparams_target; grub_err_t err; grub_efi_uintn_t memory_map_size = 0; grub_efi_memory_descriptor_t *memory_map; grub_addr_t memory_map_target; grub_efi_uintn_t map_key = 0; grub_efi_uintn_t descriptor_size = 0; grub_efi_uint32_t descriptor_version = 0; grub_uint64_t firstruntimepage, lastruntimepage; grub_uint64_t curruntimepage; grub_addr_t devtree_target; grub_size_t devtreelen; int i; struct grub_relocator32_state state; err = grub_autoefi_prepare (); if (err) return err; err = grub_cpu_xnu_fill_devprop (); if (err) return err; err = grub_cpu_xnu_fill_devicetree (); if (err) return err; err = grub_xnu_fill_devicetree (); if (err) return err; /* Page-align to avoid following parts to be inadvertently freed. */ err = grub_xnu_align_heap (GRUB_XNU_PAGESIZE); if (err) return err; /* Pass memory map to kernel. */ memory_map_size = 0; memory_map = 0; map_key = 0; descriptor_size = 0; descriptor_version = 0; grub_dprintf ("xnu", "eip=%x\n", grub_xnu_entry_point); const char *debug = grub_env_get ("debug"); if (debug && (grub_strword (debug, "all") || grub_strword (debug, "xnu"))) { grub_printf ("Press any key to launch xnu\n"); grub_getkey (); } /* Relocate the boot parameters to heap. */ err = grub_xnu_heap_malloc (sizeof (*bootparams), (void **) &bootparams, &bootparams_target); if (err) return err; /* Set video. */ err = grub_xnu_set_video (bootparams); if (err != GRUB_ERR_NONE) { grub_print_error (); grub_errno = GRUB_ERR_NONE; grub_printf ("Booting in blind mode\n"); bootparams->lfb_mode = 0; bootparams->lfb_width = 0; bootparams->lfb_height = 0; bootparams->lfb_depth = 0; bootparams->lfb_line_len = 0; bootparams->lfb_base = 0; } if (grub_autoefi_get_memory_map (&memory_map_size, memory_map, &map_key, &descriptor_size, &descriptor_version) < 0) return grub_errno; /* We will do few allocations later. Reserve some space for possible memory map growth. */ memory_map_size += 20 * descriptor_size; err = grub_xnu_heap_malloc (memory_map_size, (void **) &memory_map, &memory_map_target); if (err) return err; err = grub_xnu_writetree_toheap (&devtree_target, &devtreelen); if (err) return err; grub_memcpy (bootparams->cmdline, grub_xnu_cmdline, sizeof (bootparams->cmdline)); bootparams->devtree = devtree_target; bootparams->devtreelen = devtreelen; err = grub_autoefi_finish_boot_services (&memory_map_size, memory_map, &map_key, &descriptor_size, &descriptor_version); if (err) return err; bootparams->efi_system_table = PTR_TO_UINT32 (grub_autoefi_system_table); firstruntimepage = (((grub_addr_t) grub_xnu_heap_target_start + grub_xnu_heap_size + GRUB_XNU_PAGESIZE - 1) / GRUB_XNU_PAGESIZE) + 20; curruntimepage = firstruntimepage; for (i = 0; (unsigned) i < memory_map_size / descriptor_size; i++) { grub_efi_memory_descriptor_t *curdesc = (grub_efi_memory_descriptor_t *) ((char *) memory_map + descriptor_size * i); curdesc->virtual_start = curdesc->physical_start; if (curdesc->type == GRUB_EFI_RUNTIME_SERVICES_DATA || curdesc->type == GRUB_EFI_RUNTIME_SERVICES_CODE) { curdesc->virtual_start = curruntimepage << 12; curruntimepage += curdesc->num_pages; if (curdesc->physical_start <= PTR_TO_UINT64 (grub_autoefi_system_table) && curdesc->physical_start + (curdesc->num_pages << 12) > PTR_TO_UINT64 (grub_autoefi_system_table)) bootparams->efi_system_table = PTR_TO_UINT64 (grub_autoefi_system_table) - curdesc->physical_start + curdesc->virtual_start; if (SIZEOF_OF_UINTN == 8 && grub_xnu_is_64bit) curdesc->virtual_start |= 0xffffff8000000000ULL; } } lastruntimepage = curruntimepage; bootparams->efi_mmap = memory_map_target; bootparams->efi_mmap_size = memory_map_size; bootparams->efi_mem_desc_size = descriptor_size; bootparams->efi_mem_desc_version = descriptor_version; bootparams->heap_start = grub_xnu_heap_target_start; bootparams->heap_size = grub_xnu_heap_size; bootparams->efi_runtime_first_page = firstruntimepage; bootparams->efi_runtime_npages = lastruntimepage - firstruntimepage; bootparams->efi_uintnbits = SIZEOF_OF_UINTN * 8; bootparams->verminor = GRUB_XNU_BOOTARGS_VERMINOR; bootparams->vermajor = GRUB_XNU_BOOTARGS_VERMAJOR; /* Parameters for asm helper. */ grub_xnu_stack = bootparams->heap_start + bootparams->heap_size + GRUB_XNU_PAGESIZE; grub_xnu_arg1 = bootparams_target; grub_autoefi_set_virtual_address_map (memory_map_size, descriptor_size, descriptor_version,memory_map); state.eip = grub_xnu_entry_point; state.eax = grub_xnu_arg1; state.esp = grub_xnu_stack; state.ebp = grub_xnu_stack; return grub_relocator32_boot (grub_xnu_relocator, state); } static grub_command_t cmd_devprop_load; void grub_cpu_xnu_init (void) { cmd_devprop_load = grub_register_command ("xnu_devprop_load", grub_cmd_devprop_load, 0, N_("Load device-properties dump.")); } void grub_cpu_xnu_fini (void) { grub_unregister_command (cmd_devprop_load); }