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_init (void)
{
grub_modbase = ALIGN_UP((grub_addr_t) _end
+ GRUB_KERNEL_MACHINE_MOD_GAP,
GRUB_KERNEL_MACHINE_MOD_ALIGN);
grub_ieee1275_init ();
grub_console_init_early ();
grub_claim_heap ();
grub_console_init_lately ();
grub_ofdisk_init ();
grub_parse_cmdline ();
#ifdef __i386__
grub_tsc_init ();
#else
grub_install_get_time_ms (grub_rtc_get_time_ms);
#endif
}
void
grub_machine_init (void)
{
int i;
int grub_lower_mem;
/* Initialize the console as early as possible. */
grub_console_init ();
grub_lower_mem = grub_get_conv_memsize () << 10;
/* Sanity check. */
if (grub_lower_mem < GRUB_MEMORY_MACHINE_RESERVED_END)
grub_fatal ("too small memory");
/* FIXME: This prevents loader/i386/linux.c from using low memory. When our
heap implements support for requesting a chunk in low memory, this should
no longer be a problem. */
#if 0
/* Add the lower memory into free memory. */
if (grub_lower_mem >= GRUB_MEMORY_MACHINE_RESERVED_END)
add_mem_region (GRUB_MEMORY_MACHINE_RESERVED_END,
grub_lower_mem - GRUB_MEMORY_MACHINE_RESERVED_END);
#endif
auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t,
grub_memory_type_t);
int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size,
grub_memory_type_t type)
{
/* Avoid the lower memory. */
if (addr < 0x100000)
{
if (size <= 0x100000 - addr)
return 0;
size -= 0x100000 - addr;
addr = 0x100000;
}
/* Ignore >4GB. */
if (addr <= 0xFFFFFFFF && type == GRUB_MEMORY_AVAILABLE)
{
grub_size_t len;
len = (grub_size_t) ((addr + size > 0xFFFFFFFF)
? 0xFFFFFFFF - addr
: size);
add_mem_region (addr, len);
}
return 0;
}
grub_machine_mmap_iterate (hook);
compact_mem_regions ();
for (i = 0; i < num_regions; i++)
grub_mm_init_region ((void *) mem_regions[i].addr, mem_regions[i].size);
grub_tsc_init ();
}
