diff options
Diffstat (limited to 'grub-core/kern/i386/coreboot/init.c')
-rw-r--r-- | grub-core/kern/i386/coreboot/init.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/grub-core/kern/i386/coreboot/init.c b/grub-core/kern/i386/coreboot/init.c new file mode 100644 index 0000000..434b9b5 --- /dev/null +++ b/grub-core/kern/i386/coreboot/init.c @@ -0,0 +1,132 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009 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/kernel.h> +#include <grub/mm.h> +#include <grub/machine/time.h> +#include <grub/machine/memory.h> +#include <grub/machine/console.h> +#include <grub/offsets.h> +#include <grub/types.h> +#include <grub/err.h> +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/loader.h> +#include <grub/env.h> +#include <grub/cache.h> +#include <grub/time.h> +#include <grub/symbol.h> +#include <grub/cpu/io.h> +#include <grub/cpu/floppy.h> +#include <grub/cpu/tsc.h> +#ifdef GRUB_MACHINE_QEMU +#include <grub/machine/kernel.h> +#endif + +extern char _start[]; +extern char _end[]; + +grub_uint32_t +grub_get_rtc (void) +{ + grub_fatal ("grub_get_rtc() is not implemented.\n"); +} + +void +grub_exit (void) +{ + /* We can't use grub_fatal() in this function. This would create an infinite + loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */ + while (1) + grub_cpu_idle (); +} + +void +grub_machine_init (void) +{ +#ifdef GRUB_MACHINE_QEMU + grub_qemu_init_cirrus (); +#endif + /* Initialize the console as early as possible. */ + grub_vga_text_init (); + + auto int NESTED_FUNC_ATTR heap_init (grub_uint64_t, grub_uint64_t, + grub_memory_type_t); + int NESTED_FUNC_ATTR heap_init (grub_uint64_t addr, grub_uint64_t size, + grub_memory_type_t type) + { +#if GRUB_CPU_SIZEOF_VOID_P == 4 + /* Restrict ourselves to 32-bit memory space. */ + if (addr > GRUB_ULONG_MAX) + return 0; + if (addr + size > GRUB_ULONG_MAX) + size = GRUB_ULONG_MAX - addr; +#endif + + if (type != GRUB_MEMORY_AVAILABLE) + return 0; + + /* Avoid the lower memory. */ + if (addr < GRUB_MEMORY_MACHINE_LOWER_SIZE) + { + if (addr + size <= GRUB_MEMORY_MACHINE_LOWER_SIZE) + return 0; + else + { + size -= GRUB_MEMORY_MACHINE_LOWER_SIZE - addr; + addr = GRUB_MEMORY_MACHINE_LOWER_SIZE; + } + } + + grub_mm_init_region ((void *) (grub_addr_t) addr, (grub_size_t) size); + + return 0; + } + +#if defined (GRUB_MACHINE_MULTIBOOT) || defined (GRUB_MACHINE_QEMU) + grub_machine_mmap_init (); +#endif + grub_machine_mmap_iterate (heap_init); + + grub_tsc_init (); +} + +void +grub_machine_set_prefix (void) +{ + /* Initialize the prefix. */ + grub_env_set ("prefix", grub_prefix); +} + +void +grub_machine_fini (void) +{ + grub_vga_text_fini (); + grub_stop_floppy (); +} + +/* Return the end of the core image. */ +grub_addr_t +grub_arch_modules_addr (void) +{ +#ifdef GRUB_MACHINE_QEMU + return grub_core_entry_addr + grub_kernel_image_size; +#else + return ALIGN_UP((grub_addr_t) _end, GRUB_KERNEL_MACHINE_MOD_ALIGN); +#endif +} |