static grub_err_t
retrieve_video_parameters (grub_properly_aligned_t **ptrorig)
{
grub_err_t err;
struct grub_video_mode_info mode_info;
void *framebuffer;
grub_video_driver_id_t driv_id;
struct grub_video_palette_data palette[256];
struct multiboot_tag_framebuffer *tag
= (struct multiboot_tag_framebuffer *) *ptrorig;
err = grub_multiboot_set_video_mode ();
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
grub_video_get_palette (0, ARRAY_SIZE (palette), palette);
driv_id = grub_video_get_driver_id ();
#if HAS_VGA_TEXT
if (driv_id == GRUB_VIDEO_DRIVER_NONE)
{
struct grub_vbe_mode_info_block vbe_mode_info;
grub_uint32_t vbe_mode;
#if defined (GRUB_MACHINE_PCBIOS)
{
grub_vbe_status_t status;
void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
status = grub_vbe_bios_get_mode (scratch);
vbe_mode = *(grub_uint32_t *) scratch;
if (status != GRUB_VBE_STATUS_OK)
return GRUB_ERR_NONE;
}
#else
vbe_mode = 3;
#endif
/* get_mode_info isn't available for mode 3. */
if (vbe_mode == 3)
{
grub_memset (&vbe_mode_info, 0,
sizeof (struct grub_vbe_mode_info_block));
vbe_mode_info.memory_model = GRUB_VBE_MEMORY_MODEL_TEXT;
vbe_mode_info.x_resolution = 80;
vbe_mode_info.y_resolution = 25;
}
#if defined (GRUB_MACHINE_PCBIOS)
else
{
grub_vbe_status_t status;
void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
status = grub_vbe_bios_get_mode_info (vbe_mode, scratch);
if (status != GRUB_VBE_STATUS_OK)
return GRUB_ERR_NONE;
grub_memcpy (&vbe_mode_info, scratch,
sizeof (struct grub_vbe_mode_info_block));
}
#endif
if (vbe_mode_info.memory_model == GRUB_VBE_MEMORY_MODEL_TEXT)
{
tag = (struct multiboot_tag_framebuffer *) *ptrorig;
tag->common.type = MULTIBOOT_TAG_TYPE_FRAMEBUFFER;
tag->common.size = 0;
tag->common.framebuffer_addr = 0xb8000;
tag->common.framebuffer_pitch = 2 * vbe_mode_info.x_resolution;
tag->common.framebuffer_width = vbe_mode_info.x_resolution;
tag->common.framebuffer_height = vbe_mode_info.y_resolution;
tag->common.framebuffer_bpp = 16;
tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT;
tag->common.size = sizeof (tag->common);
tag->common.reserved = 0;
*ptrorig += ALIGN_UP (tag->common.size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
return GRUB_ERR_NONE;
}
#else
if (driv_id == GRUB_VIDEO_DRIVER_NONE)
return GRUB_ERR_NONE;
#endif
#if GRUB_MACHINE_HAS_VBE
{
struct multiboot_tag_vbe *tag_vbe = (struct multiboot_tag_vbe *) *ptrorig;
fill_vbe_tag (tag_vbe);
*ptrorig += ALIGN_UP (tag_vbe->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
#endif
err = grub_video_get_info_and_fini (&mode_info, &framebuffer);
if (err)
return err;
tag = (struct multiboot_tag_framebuffer *) *ptrorig;
tag->common.type = MULTIBOOT_TAG_TYPE_FRAMEBUFFER;
tag->common.size = 0;
tag->common.framebuffer_addr = (grub_addr_t) framebuffer;
tag->common.framebuffer_pitch = mode_info.pitch;
tag->common.framebuffer_width = mode_info.width;
tag->common.framebuffer_height = mode_info.height;
tag->common.framebuffer_bpp = mode_info.bpp;
tag->common.reserved = 0;
if (mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR)
{
unsigned i;
tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED;
tag->framebuffer_palette_num_colors = mode_info.number_of_colors;
if (tag->framebuffer_palette_num_colors > ARRAY_SIZE (palette))
tag->framebuffer_palette_num_colors = ARRAY_SIZE (palette);
tag->common.size = sizeof (struct multiboot_tag_framebuffer_common)
+ sizeof (multiboot_uint16_t) + tag->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
for (i = 0; i < tag->framebuffer_palette_num_colors; i++)
{
tag->framebuffer_palette[i].red = palette[i].r;
tag->framebuffer_palette[i].green = palette[i].g;
tag->framebuffer_palette[i].blue = palette[i].b;
}
}
else
{
tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB;
tag->framebuffer_red_field_position = mode_info.red_field_pos;
tag->framebuffer_red_mask_size = mode_info.red_mask_size;
tag->framebuffer_green_field_position = mode_info.green_field_pos;
tag->framebuffer_green_mask_size = mode_info.green_mask_size;
tag->framebuffer_blue_field_position = mode_info.blue_field_pos;
tag->framebuffer_blue_mask_size = mode_info.blue_mask_size;
tag->common.size = sizeof (struct multiboot_tag_framebuffer_common) + 6;
}
*ptrorig += ALIGN_UP (tag->common.size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_linux_boot (void)
{
grub_err_t err = 0;
const char *modevar;
char *tmp;
struct grub_relocator32_state state;
void *real_mode_mem;
struct grub_linux_boot_ctx ctx = {
.real_mode_target = 0
};
grub_size_t mmap_size;
grub_size_t cl_offset;
#ifdef GRUB_MACHINE_IEEE1275
{
const char *bootpath;
grub_ssize_t len;
bootpath = grub_env_get ("root");
if (bootpath)
grub_ieee1275_set_property (grub_ieee1275_chosen,
"bootpath", bootpath,
grub_strlen (bootpath) + 1,
&len);
linux_params.ofw_signature = GRUB_LINUX_OFW_SIGNATURE;
linux_params.ofw_num_items = 1;
linux_params.ofw_cif_handler = (grub_uint32_t) grub_ieee1275_entry_fn;
linux_params.ofw_idt = 0;
}
#endif
modevar = grub_env_get ("gfxpayload");
/* Now all graphical modes are acceptable.
May change in future if we have modes without framebuffer. */
if (modevar && *modevar != 0)
{
tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar);
if (! tmp)
return grub_errno;
#if ACCEPTS_PURE_TEXT
err = grub_video_set_mode (tmp, 0, 0);
#else
err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
#endif
grub_free (tmp);
}
else /* We can't go back to text mode from coreboot fb. */
#ifdef GRUB_MACHINE_COREBOOT
if (grub_video_get_driver_id () == GRUB_VIDEO_DRIVER_COREBOOT)
err = GRUB_ERR_NONE;
else
#endif
{
#if ACCEPTS_PURE_TEXT
err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0, 0);
#else
err = grub_video_set_mode (DEFAULT_VIDEO_MODE,
GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
#endif
}
if (err)
{
grub_print_error ();
grub_puts_ (N_("Booting in blind mode"));
grub_errno = GRUB_ERR_NONE;
}
if (grub_linux_setup_video (&linux_params))
{
#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU)
linux_params.have_vga = GRUB_VIDEO_LINUX_TYPE_TEXT;
linux_params.video_mode = 0x3;
#else
linux_params.have_vga = 0;
linux_params.video_mode = 0;
linux_params.video_width = 0;
linux_params.video_height = 0;
#endif
}
#ifndef GRUB_MACHINE_IEEE1275
if (linux_params.have_vga == GRUB_VIDEO_LINUX_TYPE_TEXT)
#endif
{
grub_term_output_t term;
int found = 0;
FOR_ACTIVE_TERM_OUTPUTS(term)
if (grub_strcmp (term->name, "vga_text") == 0
|| grub_strcmp (term->name, "console") == 0
|| grub_strcmp (term->name, "ofconsole") == 0)
{
struct grub_term_coordinate pos = grub_term_getxy (term);
linux_params.video_cursor_x = pos.x;
linux_params.video_cursor_y = pos.y;
linux_params.video_width = grub_term_width (term);
linux_params.video_height = grub_term_height (term);
found = 1;
break;
}
if (!found)
{
linux_params.video_cursor_x = 0;
linux_params.video_cursor_y = 0;
linux_params.video_width = 80;
linux_params.video_height = 25;
}
}
mmap_size = find_mmap_size ();
/* Make sure that each size is aligned to a page boundary. */
cl_offset = ALIGN_UP (mmap_size + sizeof (linux_params), 4096);
if (cl_offset < ((grub_size_t) linux_params.setup_sects << GRUB_DISK_SECTOR_BITS))
cl_offset = ALIGN_UP ((grub_size_t) (linux_params.setup_sects
<< GRUB_DISK_SECTOR_BITS), 4096);
ctx.real_size = ALIGN_UP (cl_offset + maximal_cmdline_size, 4096);
#ifdef GRUB_MACHINE_EFI
efi_mmap_size = find_efi_mmap_size ();
if (efi_mmap_size == 0)
return grub_errno;
#endif
grub_dprintf ("linux", "real_size = %x, mmap_size = %x\n",
(unsigned) ctx.real_size, (unsigned) mmap_size);
#ifdef GRUB_MACHINE_EFI
grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 1);
if (! ctx.real_mode_target)
grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 0);
#else
grub_mmap_iterate (grub_linux_boot_mmap_find, &ctx);
#endif
grub_dprintf ("linux", "real_mode_target = %lx, real_size = %x, efi_mmap_size = %x\n",
(unsigned long) ctx.real_mode_target,
(unsigned) ctx.real_size,
(unsigned) efi_mmap_size);
if (! ctx.real_mode_target)
return grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate real mode pages");
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
ctx.real_mode_target,
(ctx.real_size + efi_mmap_size));
if (err)
return err;
real_mode_mem = get_virtual_current_address (ch);
}
efi_mmap_buf = (grub_uint8_t *) real_mode_mem + ctx.real_size;
grub_dprintf ("linux", "real_mode_mem = %p\n",
real_mode_mem);
ctx.params = real_mode_mem;
*ctx.params = linux_params;
ctx.params->cmd_line_ptr = ctx.real_mode_target + cl_offset;
grub_memcpy ((char *) ctx.params + cl_offset, linux_cmdline,
maximal_cmdline_size);
grub_dprintf ("linux", "code32_start = %x\n",
(unsigned) ctx.params->code32_start);
ctx.e820_num = 0;
if (grub_mmap_iterate (grub_linux_boot_mmap_fill, &ctx))
return grub_errno;
ctx.params->mmap_size = ctx.e820_num;
#ifdef GRUB_MACHINE_EFI
{
grub_efi_uintn_t efi_desc_size;
grub_size_t efi_mmap_target;
grub_efi_uint32_t efi_desc_version;
err = grub_efi_finish_boot_services (&efi_mmap_size, efi_mmap_buf, NULL,
&efi_desc_size, &efi_desc_version);
if (err)
return err;
/* Note that no boot services are available from here. */
efi_mmap_target = ctx.real_mode_target
+ ((grub_uint8_t *) efi_mmap_buf - (grub_uint8_t *) real_mode_mem);
/* Pass EFI parameters. */
if (grub_le_to_cpu16 (ctx.params->version) >= 0x0208)
{
ctx.params->v0208.efi_mem_desc_size = efi_desc_size;
ctx.params->v0208.efi_mem_desc_version = efi_desc_version;
ctx.params->v0208.efi_mmap = efi_mmap_target;
ctx.params->v0208.efi_mmap_size = efi_mmap_size;
#ifdef __x86_64__
ctx.params->v0208.efi_mmap_hi = (efi_mmap_target >> 32);
#endif
}
else if (grub_le_to_cpu16 (ctx.params->version) >= 0x0206)
static grub_err_t
retrieve_video_parameters (struct multiboot_info *mbi,
grub_uint8_t *ptrorig, grub_uint32_t ptrdest)
{
grub_err_t err;
struct grub_video_mode_info mode_info;
void *framebuffer;
grub_video_driver_id_t driv_id;
struct grub_video_palette_data palette[256];
err = grub_multiboot_set_video_mode ();
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
grub_video_get_palette (0, ARRAY_SIZE (palette), palette);
driv_id = grub_video_get_driver_id ();
if (driv_id == GRUB_VIDEO_DRIVER_NONE)
return GRUB_ERR_NONE;
err = grub_video_get_info_and_fini (&mode_info, &framebuffer);
if (err)
return err;
mbi->framebuffer_addr = (grub_addr_t) framebuffer;
mbi->framebuffer_pitch = mode_info.pitch;
mbi->framebuffer_width = mode_info.width;
mbi->framebuffer_height = mode_info.height;
mbi->framebuffer_bpp = mode_info.bpp;
if (mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR)
{
struct multiboot_color *mb_palette;
unsigned i;
mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED;
mbi->framebuffer_palette_addr = ptrdest;
mbi->framebuffer_palette_num_colors = mode_info.number_of_colors;
if (mbi->framebuffer_palette_num_colors > ARRAY_SIZE (palette))
mbi->framebuffer_palette_num_colors = ARRAY_SIZE (palette);
mb_palette = (struct multiboot_color *) ptrorig;
for (i = 0; i < mbi->framebuffer_palette_num_colors; i++)
{
mb_palette[i].red = palette[i].r;
mb_palette[i].green = palette[i].g;
mb_palette[i].blue = palette[i].b;
}
ptrorig += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
ptrdest += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
}
else
{
mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB;
mbi->framebuffer_red_field_position = mode_info.green_field_pos;
mbi->framebuffer_red_mask_size = mode_info.green_mask_size;
mbi->framebuffer_green_field_position = mode_info.green_field_pos;
mbi->framebuffer_green_mask_size = mode_info.green_mask_size;
mbi->framebuffer_blue_field_position = mode_info.blue_field_pos;
mbi->framebuffer_blue_mask_size = mode_info.blue_mask_size;
}
mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
return GRUB_ERR_NONE;
}
static grub_err_t
grub_linux_boot (void)
{
grub_err_t err = 0;
const char *modevar;
char *tmp;
struct grub_relocator32_state state;
void *real_mode_mem;
struct grub_linux_boot_ctx ctx = {
.real_mode_target = 0
};
grub_size_t mmap_size;
grub_size_t cl_offset;
#ifdef GRUB_MACHINE_IEEE1275
{
const char *bootpath;
grub_ssize_t len;
bootpath = grub_env_get ("root");
if (bootpath)
grub_ieee1275_set_property (grub_ieee1275_chosen,
"bootpath", bootpath,
grub_strlen (bootpath) + 1,
&len);
linux_params.ofw_signature = GRUB_LINUX_OFW_SIGNATURE;
linux_params.ofw_num_items = 1;
linux_params.ofw_cif_handler = (grub_uint32_t) grub_ieee1275_entry_fn;
linux_params.ofw_idt = 0;
}
#endif
modevar = grub_env_get ("gfxpayload");
/* Now all graphical modes are acceptable.
May change in future if we have modes without framebuffer. */
if (modevar && *modevar != 0)
{
tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar);
if (! tmp)
return grub_errno;
#if ACCEPTS_PURE_TEXT
err = grub_video_set_mode (tmp, 0, 0);
#else
err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
#endif
grub_free (tmp);
}
else /* We can't go back to text mode from coreboot fb. */
#ifdef GRUB_MACHINE_COREBOOT
if (grub_video_get_driver_id () == GRUB_VIDEO_DRIVER_COREBOOT)
err = GRUB_ERR_NONE;
else
#endif
{
#if ACCEPTS_PURE_TEXT
err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0, 0);
#else
err = grub_video_set_mode (DEFAULT_VIDEO_MODE,
GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
#endif
}
if (err)
{
grub_print_error ();
grub_puts_ (N_("Booting in blind mode"));
grub_errno = GRUB_ERR_NONE;
}
if (grub_linux_setup_video (&linux_params))
{
#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU)
linux_params.have_vga = GRUB_VIDEO_LINUX_TYPE_TEXT;
linux_params.video_mode = 0x3;
#else
linux_params.have_vga = 0;
linux_params.video_mode = 0;
linux_params.video_width = 0;
linux_params.video_height = 0;
#endif
}
#ifndef GRUB_MACHINE_IEEE1275
if (linux_params.have_vga == GRUB_VIDEO_LINUX_TYPE_TEXT)
#endif
{
grub_term_output_t term;
int found = 0;
FOR_ACTIVE_TERM_OUTPUTS(term)
if (grub_strcmp (term->name, "vga_text") == 0
|| grub_strcmp (term->name, "console") == 0
|| grub_strcmp (term->name, "ofconsole") == 0)
{
grub_uint16_t pos = grub_term_getxy (term);
linux_params.video_cursor_x = pos >> 8;
linux_params.video_cursor_y = pos & 0xff;
linux_params.video_width = grub_term_width (term);
linux_params.video_height = grub_term_height (term);
found = 1;
break;
}
if (!found)
{
linux_params.video_cursor_x = 0;
linux_params.video_cursor_y = 0;
linux_params.video_width = 80;
linux_params.video_height = 25;
}
}
static grub_err_t
grub_linux_setup_video (struct linux_kernel_params *params)
{
struct grub_video_mode_info mode_info;
void *framebuffer;
grub_err_t err;
grub_video_driver_id_t driver_id;
const char *gfxlfbvar = grub_env_get ("gfxpayloadforcelfb");
driver_id = grub_video_get_driver_id ();
if (driver_id == GRUB_VIDEO_DRIVER_NONE)
return 1;
err = grub_video_get_info_and_fini (&mode_info, &framebuffer);
if (err)
{
grub_errno = GRUB_ERR_NONE;
return 1;
}
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 = (grub_size_t) framebuffer;
params->lfb_size = ALIGN_UP (params->lfb_line_len * params->lfb_height, 65536);
params->red_mask_size = mode_info.red_mask_size;
params->red_field_pos = mode_info.red_field_pos;
params->green_mask_size = mode_info.green_mask_size;
params->green_field_pos = mode_info.green_field_pos;
params->blue_mask_size = mode_info.blue_mask_size;
params->blue_field_pos = mode_info.blue_field_pos;
params->reserved_mask_size = mode_info.reserved_mask_size;
params->reserved_field_pos = mode_info.reserved_field_pos;
if (gfxlfbvar && (gfxlfbvar[0] == '1' || gfxlfbvar[0] == 'y'))
params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE;
else
{
switch (driver_id)
{
case GRUB_VIDEO_DRIVER_VBE:
params->lfb_size >>= 16;
params->have_vga = GRUB_VIDEO_LINUX_TYPE_VESA;
break;
case GRUB_VIDEO_DRIVER_EFI_UGA:
case GRUB_VIDEO_DRIVER_EFI_GOP:
params->have_vga = GRUB_VIDEO_LINUX_TYPE_EFIFB;
break;
/* FIXME: check if better id is available. */
case GRUB_VIDEO_DRIVER_SM712:
case GRUB_VIDEO_DRIVER_SIS315PRO:
case GRUB_VIDEO_DRIVER_VGA:
case GRUB_VIDEO_DRIVER_CIRRUS:
case GRUB_VIDEO_DRIVER_BOCHS:
case GRUB_VIDEO_DRIVER_RADEON_FULOONG2E:
case GRUB_VIDEO_DRIVER_RADEON_YEELOONG3A:
case GRUB_VIDEO_DRIVER_IEEE1275:
case GRUB_VIDEO_DRIVER_COREBOOT:
/* Make gcc happy. */
case GRUB_VIDEO_DRIVER_XEN:
case GRUB_VIDEO_DRIVER_SDL:
case GRUB_VIDEO_DRIVER_NONE:
case GRUB_VIDEO_ADAPTER_CAPTURE:
params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE;
break;
}
}
#ifdef GRUB_MACHINE_PCBIOS
/* VESA packed modes may come with zeroed mask sizes, which need
to be set here according to DAC Palette width. If we don't,
this results in Linux displaying a black screen. */
if (driver_id == GRUB_VIDEO_DRIVER_VBE && mode_info.bpp <= 8)
{
struct grub_vbe_info_block controller_info;
int status;
int width = 8;
status = grub_vbe_bios_get_controller_info (&controller_info);
if (status == GRUB_VBE_STATUS_OK &&
(controller_info.capabilities & GRUB_VBE_CAPABILITY_DACWIDTH))
status = grub_vbe_bios_set_dac_palette_width (&width);
if (status != GRUB_VBE_STATUS_OK)
/* 6 is default after mode reset. */
width = 6;
params->red_mask_size = params->green_mask_size
= params->blue_mask_size = width;
params->reserved_mask_size = 0;
}
#endif
return GRUB_ERR_NONE;
}
