diff options
Diffstat (limited to 'grub-core/efiemu/i386')
-rw-r--r-- | grub-core/efiemu/i386/coredetect.c | 27 | ||||
-rw-r--r-- | grub-core/efiemu/i386/loadcore32.c | 121 | ||||
-rw-r--r-- | grub-core/efiemu/i386/loadcore64.c | 138 | ||||
-rw-r--r-- | grub-core/efiemu/i386/nocfgtables.c | 30 | ||||
-rw-r--r-- | grub-core/efiemu/i386/pc/cfgtables.c | 69 |
5 files changed, 385 insertions, 0 deletions
diff --git a/grub-core/efiemu/i386/coredetect.c b/grub-core/efiemu/i386/coredetect.c new file mode 100644 index 0000000..a262b53 --- /dev/null +++ b/grub-core/efiemu/i386/coredetect.c @@ -0,0 +1,27 @@ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <grub/efiemu/efiemu.h> +#include <grub/command.h> +#include <grub/i386/cpuid.h> + +const char * +grub_efiemu_get_default_core_name (void) +{ + return grub_cpuid_has_longmode ? "efiemu64.o" : "efiemu32.o"; +} diff --git a/grub-core/efiemu/i386/loadcore32.c b/grub-core/efiemu/i386/loadcore32.c new file mode 100644 index 0000000..e746df8 --- /dev/null +++ b/grub-core/efiemu/i386/loadcore32.c @@ -0,0 +1,121 @@ +/* i386 CPU-specific part of loadcore.c for 32-bit mode */ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <grub/err.h> +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/efiemu/efiemu.h> +#include <grub/cpu/efiemu.h> +#include <grub/elf.h> +#include <grub/i18n.h> + +/* Check if EHDR is a valid ELF header. */ +int +grub_arch_efiemu_check_header32 (void *ehdr) +{ + Elf32_Ehdr *e = ehdr; + + /* Check the magic numbers. */ + return (e->e_ident[EI_CLASS] == ELFCLASS32 + && e->e_ident[EI_DATA] == ELFDATA2LSB + && e->e_machine == EM_386); +} + +/* Relocate symbols. */ +grub_err_t +grub_arch_efiemu_relocate_symbols32 (grub_efiemu_segment_t segs, + struct grub_efiemu_elf_sym *elfsyms, + void *ehdr) +{ + unsigned i; + Elf32_Ehdr *e = ehdr; + Elf32_Shdr *s; + grub_err_t err; + + grub_dprintf ("efiemu", "relocating symbols %d %d\n", + e->e_shoff, e->e_shnum); + + for (i = 0, s = (Elf32_Shdr *) ((char *) e + e->e_shoff); + i < e->e_shnum; + i++, s = (Elf32_Shdr *) ((char *) s + e->e_shentsize)) + if (s->sh_type == SHT_REL) + { + grub_efiemu_segment_t seg; + grub_dprintf ("efiemu", "shtrel\n"); + + /* Find the target segment. */ + for (seg = segs; seg; seg = seg->next) + if (seg->section == s->sh_info) + break; + + if (seg) + { + Elf32_Rel *rel, *max; + + for (rel = (Elf32_Rel *) ((char *) e + s->sh_offset), + max = rel + s->sh_size / s->sh_entsize; + rel < max; + rel++) + { + Elf32_Word *addr; + struct grub_efiemu_elf_sym sym; + if (seg->size < rel->r_offset) + return grub_error (GRUB_ERR_BAD_MODULE, + "reloc offset is out of the segment"); + + addr = (Elf32_Word *) + ((char *) grub_efiemu_mm_obtain_request (seg->handle) + + seg->off + rel->r_offset); + sym = elfsyms[ELF32_R_SYM (rel->r_info)]; + + switch (ELF32_R_TYPE (rel->r_info)) + { + case R_386_32: + err = grub_efiemu_write_value (addr, sym.off + *addr, + sym.handle, 0, + seg->ptv_rel_needed, + sizeof (grub_uint32_t)); + if (err) + return err; + + break; + + case R_386_PC32: + err = grub_efiemu_write_value (addr, sym.off + *addr + - rel->r_offset + - seg->off, sym.handle, + seg->handle, + seg->ptv_rel_needed, + sizeof (grub_uint32_t)); + if (err) + return err; + break; + default: + return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET, + N_("relocation 0x%x is not implemented yet"), + ELF_R_TYPE (rel->r_info)); + } + } + } + } + + return GRUB_ERR_NONE; +} + + diff --git a/grub-core/efiemu/i386/loadcore64.c b/grub-core/efiemu/i386/loadcore64.c new file mode 100644 index 0000000..ae476ef --- /dev/null +++ b/grub-core/efiemu/i386/loadcore64.c @@ -0,0 +1,138 @@ +/* i386 CPU-specific part of loadcore.c for 32-bit mode */ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <grub/err.h> +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/efiemu/efiemu.h> +#include <grub/cpu/efiemu.h> +#include <grub/elf.h> +#include <grub/i18n.h> + +/* Check if EHDR is a valid ELF header. */ +int +grub_arch_efiemu_check_header64 (void *ehdr) +{ + Elf64_Ehdr *e = ehdr; + + return (e->e_ident[EI_CLASS] == ELFCLASS64 + && e->e_ident[EI_DATA] == ELFDATA2LSB + && e->e_machine == EM_X86_64); +} + +/* Relocate symbols. */ +grub_err_t +grub_arch_efiemu_relocate_symbols64 (grub_efiemu_segment_t segs, + struct grub_efiemu_elf_sym *elfsyms, + void *ehdr) +{ + unsigned i; + Elf64_Ehdr *e = ehdr; + Elf64_Shdr *s; + grub_err_t err; + + for (i = 0, s = (Elf64_Shdr *) ((char *) e + e->e_shoff); + i < e->e_shnum; + i++, s = (Elf64_Shdr *) ((char *) s + e->e_shentsize)) + if (s->sh_type == SHT_RELA) + { + grub_efiemu_segment_t seg; + grub_dprintf ("efiemu", "shtrel\n"); + + /* Find the target segment. */ + for (seg = segs; seg; seg = seg->next) + if (seg->section == s->sh_info) + break; + + if (seg) + { + Elf64_Rela *rel, *max; + + for (rel = (Elf64_Rela *) ((char *) e + s->sh_offset), + max = rel + (unsigned long) s->sh_size + / (unsigned long)s->sh_entsize; + rel < max; + rel++) + { + void *addr; + grub_uint32_t *addr32; + grub_uint64_t *addr64; + struct grub_efiemu_elf_sym sym; + if (seg->size < rel->r_offset) + return grub_error (GRUB_ERR_BAD_MODULE, + "reloc offset is out of the segment"); + + addr = + ((char *) grub_efiemu_mm_obtain_request (seg->handle) + + seg->off + rel->r_offset); + addr32 = (grub_uint32_t *) addr; + addr64 = (grub_uint64_t *) addr; + sym = elfsyms[ELF64_R_SYM (rel->r_info)]; + + switch (ELF64_R_TYPE (rel->r_info)) + { + case R_X86_64_64: + err = grub_efiemu_write_value (addr, + *addr64 + rel->r_addend + + sym.off, sym.handle, + 0, seg->ptv_rel_needed, + sizeof (grub_uint64_t)); + if (err) + return err; + break; + + case R_X86_64_PC32: + case R_X86_64_PLT32: + err = grub_efiemu_write_value (addr, + *addr32 + rel->r_addend + + sym.off + - rel->r_offset - seg->off, + sym.handle, seg->handle, + seg->ptv_rel_needed, + sizeof (grub_uint32_t)); + if (err) + return err; + break; + + case R_X86_64_32: + case R_X86_64_32S: + err = grub_efiemu_write_value (addr, + *addr32 + rel->r_addend + + sym.off, sym.handle, + 0, seg->ptv_rel_needed, + sizeof (grub_uint32_t)); + if (err) + return err; + break; + default: + { + char rel_info[17]; /* log16(2^64) = 16, plus NUL. */ + + grub_snprintf (rel_info, sizeof (rel_info) - 1, "%" PRIxGRUB_UINT64_T, + ELF_R_TYPE (rel->r_info)); + return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET, + N_("relocation 0x%s is not implemented yet"), rel_info); + } + } + } + } + } + + return GRUB_ERR_NONE; +} diff --git a/grub-core/efiemu/i386/nocfgtables.c b/grub-core/efiemu/i386/nocfgtables.c new file mode 100644 index 0000000..775f1d0 --- /dev/null +++ b/grub-core/efiemu/i386/nocfgtables.c @@ -0,0 +1,30 @@ +/* Register SMBIOS and ACPI tables. */ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <grub/err.h> +#include <grub/efiemu/efiemu.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/acpi.h> + +grub_err_t +grub_machine_efiemu_init_tables (void) +{ + return GRUB_ERR_NONE; +} diff --git a/grub-core/efiemu/i386/pc/cfgtables.c b/grub-core/efiemu/i386/pc/cfgtables.c new file mode 100644 index 0000000..e5fffb7 --- /dev/null +++ b/grub-core/efiemu/i386/pc/cfgtables.c @@ -0,0 +1,69 @@ +/* Register SMBIOS and ACPI tables. */ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <grub/err.h> +#include <grub/efiemu/efiemu.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/acpi.h> +#include <grub/smbios.h> + +grub_err_t +grub_machine_efiemu_init_tables (void) +{ + void *table; + grub_err_t err; + grub_efi_guid_t smbios = GRUB_EFI_SMBIOS_TABLE_GUID; + grub_efi_guid_t acpi20 = GRUB_EFI_ACPI_20_TABLE_GUID; + grub_efi_guid_t acpi = GRUB_EFI_ACPI_TABLE_GUID; + + err = grub_efiemu_unregister_configuration_table (smbios); + if (err) + return err; + err = grub_efiemu_unregister_configuration_table (acpi); + if (err) + return err; + err = grub_efiemu_unregister_configuration_table (acpi20); + if (err) + return err; + + table = grub_acpi_get_rsdpv1 (); + if (table) + { + err = grub_efiemu_register_configuration_table (acpi, 0, 0, table); + if (err) + return err; + } + table = grub_acpi_get_rsdpv2 (); + if (table) + { + err = grub_efiemu_register_configuration_table (acpi20, 0, 0, table); + if (err) + return err; + } + table = grub_smbios_get_eps (); + if (table) + { + err = grub_efiemu_register_configuration_table (smbios, 0, 0, table); + if (err) + return err; + } + + return GRUB_ERR_NONE; +} |