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2009-04-06 Pavel Roskin <proski@gnu.org>

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* include/grub/misc.h (ARRAY_SIZE): New macro.
	* include/grub/i386/linux.h (GRUB_LINUX_VID_MODE_VESA_START):
	New macro.
	* loader/i386/linux.c (allocate_pages): Use free_pages().
	(grub_linux_unload): Don't use free_pages().
	(grub_linux_boot): Prevent accessing linux_vesafb_modes with a
	wrong index.  Treat all other modes as text modes.
	(grub_cmd_linux): Initialize vid_mode unconditionally to
	GRUB_LINUX_VID_MODE_NORMAL.  Recognize and support "vga=ask".
This commit is contained in:
proski 2009-04-07 00:48:57 +00:00
parent 761319cfd3
commit 1007d1f562
4 changed files with 21 additions and 6 deletions
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10
ChangeLog
View file

@ -1,5 +1,15 @@
2009-04-06 Pavel Roskin <proski@gnu.org>
* include/grub/misc.h (ARRAY_SIZE): New macro.
* include/grub/i386/linux.h (GRUB_LINUX_VID_MODE_VESA_START):
New macro.
* loader/i386/linux.c (allocate_pages): Use free_pages().
(grub_linux_unload): Don't use free_pages().
(grub_linux_boot): Prevent accessing linux_vesafb_modes with a
wrong index. Treat all other modes as text modes.
(grub_cmd_linux): Initialize vid_mode unconditionally to
GRUB_LINUX_VID_MODE_NORMAL. Recognize and support "vga=ask".
* commands/help.c (print_command_help): Use cmd->prio, not
cmd->flags to check for GRUB_PRIO_LIST_FLAG_ACTIVE.

1
include/grub/i386/linux.h
View file

@ -38,6 +38,7 @@
#define GRUB_LINUX_VID_MODE_NORMAL 0xFFFF
#define GRUB_LINUX_VID_MODE_EXTENDED 0xFFFE
#define GRUB_LINUX_VID_MODE_ASK 0xFFFD
#define GRUB_LINUX_VID_MODE_VESA_START 0x0301
#define GRUB_LINUX_SETUP_MOVE_SIZE 0x9100
#define GRUB_LINUX_CL_MAGIC 0xA33F

1
include/grub/misc.h
View file

@ -26,6 +26,7 @@
#include <grub/err.h>
#define ALIGN_UP(addr, align) (((grub_uint64_t)addr + align - 1) & ~(align - 1))
#define ARRAY_SIZE(array) (sizeof (array) / sizeof (array[0]))
#define grub_dprintf(condition, fmt, args...) grub_real_dprintf(__FILE__, __LINE__, condition, fmt, ## args);
/* XXX: If grub_memmove is too slow, we must implement grub_memcpy. */

15
loader/i386/linux.c
View file

@ -206,8 +206,7 @@ allocate_pages (grub_size_t prot_size)
prot_mode_pages = (prot_size >> 12);
/* Initialize the memory pointers with NULL for convenience. */
real_mode_mem = 0;
prot_mode_mem = 0;
free_pages ();
/* FIXME: Should request low memory from the heap when this feature is
implemented. */
@ -332,7 +331,9 @@ grub_linux_boot (void)
params = real_mode_mem;
if (vid_mode == GRUB_LINUX_VID_MODE_NORMAL || vid_mode == GRUB_LINUX_VID_MODE_EXTENDED)
if (vid_mode < GRUB_LINUX_VID_MODE_VESA_START ||
vid_mode >= GRUB_LINUX_VID_MODE_VESA_START +
ARRAY_SIZE (linux_vesafb_modes))
grub_video_restore ();
else if (vid_mode)
{
@ -340,7 +341,7 @@ grub_linux_boot (void)
int depth, flags;
flags = 0;
linux_mode = &linux_vesafb_modes[vid_mode - 0x301];
linux_mode = &linux_vesafb_modes[vid_mode - GRUB_LINUX_VID_MODE_VESA_START];
depth = linux_mode->depth;
/* If we have 8 or less bits, then assume that it is indexed color mode. */
@ -443,7 +444,6 @@ grub_linux_boot (void)
static grub_err_t
grub_linux_unload (void)
{
free_pages ();
grub_dl_unref (my_mod);
loaded = 0;
return GRUB_ERR_NONE;
@ -569,7 +569,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
grub_printf (" [Linux-bzImage, setup=0x%x, size=0x%x]\n",
(unsigned) real_size, (unsigned) prot_size);
/* Detect explicitly specified memory size, if any. */
/* Look for memory size and video mode specified on the command line. */
vid_mode = GRUB_LINUX_VID_MODE_NORMAL;
linux_mem_size = 0;
for (i = 1; i < argc; i++)
if (grub_memcmp (argv[i], "vga=", 4) == 0)
@ -581,6 +582,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
vid_mode = GRUB_LINUX_VID_MODE_NORMAL;
else if (grub_strcmp (val, "ext") == 0)
vid_mode = GRUB_LINUX_VID_MODE_EXTENDED;
else if (grub_strcmp (val, "ask") == 0)
vid_mode = GRUB_LINUX_VID_MODE_ASK;
else
vid_mode = (grub_uint16_t) grub_strtoul (val, 0, 0);