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* grub-core/commands/nativedisk.c: Customize the list of modules on

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platform. Don't try to search for disks already using native drivers.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-04-29 12:14:57 +02:00
parent f7bf6c31f3
commit ef9d8cd510
3 changed files with 89 additions and 21 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
2013-04-29 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/commands/nativedisk.c: Customize the list of modules on
platform. Don't try to search for disks already using native drivers.
2013-04-29 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/bus/usb/uhci.c: Fix DMA handling and enable on all PCI

4
grub-core/Makefile.core.def
View file

@ -510,6 +510,10 @@ module = {
module = {
name = nativedisk;
common = commands/nativedisk.c;
enable = x86;
enable = mips_loongson;
enable = mips_qemu_mips;
};
module = {

101
grub-core/commands/nativedisk.c
View file

@ -31,17 +31,67 @@
GRUB_MOD_LICENSE ("GPLv3+");
static const char *modnames_def[] = { "pata", "ahci", "usbms", "ohci", "uhci", "ehci" };
static const char *modnames_def[] = {
/* FIXME: autogenerate this. */
#if defined (__i386__) || defined (__x86_64__) || defined (GRUB_MACHINE_MIPS_LOONGSON)
"pata", "ahci", "usbms", "ohci", "uhci", "ehci"
#elif defined (GRUB_MACHINE_MIPS_QEMU_MIPS)
"pata"
#else
#error "Fill this"
#endif
};
static grub_err_t
get_uuid (const char *name, char **uuid)
get_uuid (const char *name, char **uuid, int getnative)
{
grub_device_t dev;
grub_fs_t fs = 0;
*uuid = 0;
dev = grub_device_open (name);
if (!dev)
return grub_errno;
if (!dev->disk)
{
grub_dprintf ("nativedisk", "Skipping non-disk\n");
return 0;
}
switch (dev->disk->dev->id)
{
/* Firmware disks. */
case GRUB_DISK_DEVICE_BIOSDISK_ID:
case GRUB_DISK_DEVICE_OFDISK_ID:
case GRUB_DISK_DEVICE_EFIDISK_ID:
case GRUB_DISK_DEVICE_NAND_ID:
case GRUB_DISK_DEVICE_ARCDISK_ID:
case GRUB_DISK_DEVICE_HOSTDISK_ID:
break;
/* Native disks. */
case GRUB_DISK_DEVICE_ATA_ID:
case GRUB_DISK_DEVICE_SCSI_ID:
if (getnative)
break;
/* Virtual disks. */
case GRUB_DISK_DEVICE_PROCFS_ID:
case GRUB_DISK_DEVICE_HOST_ID:
/* GRUB-only memdisk. Can't match any of firmware devices. */
case GRUB_DISK_DEVICE_MEMDISK_ID:
grub_dprintf ("nativedisk", "Skipping native disk %s\n",
dev->disk->name);
return 0;
/* FIXME: those probably need special handling. */
case GRUB_DISK_DEVICE_LOOPBACK_ID:
case GRUB_DISK_DEVICE_DISKFILTER_ID:
case GRUB_DISK_DEVICE_CRYPTODISK_ID:
break;
}
if (dev)
fs = grub_fs_probe (dev);
if (!fs)
@ -49,7 +99,7 @@ get_uuid (const char *name, char **uuid)
grub_device_close (dev);
return grub_errno;
}
if (!fs->uuid || fs->uuid (dev, uuid))
if (!fs->uuid || fs->uuid (dev, uuid) || !*uuid)
{
grub_device_close (dev);
@ -77,14 +127,17 @@ iterate_device (const char *name, void *data)
struct search_ctx *ctx = data;
char *cur_uuid;
if (get_uuid (name, &cur_uuid))
if (get_uuid (name, &cur_uuid, 1))
{
if (grub_errno == GRUB_ERR_UNKNOWN_FS)
grub_errno = 0;
grub_print_error ();
return 0;
}
if (grub_strcasecmp (cur_uuid, ctx->prefix_uuid) == 0)
grub_dprintf ("nativedisk", "checking %s: %s\n", name,
cur_uuid);
if (ctx->prefix_uuid && grub_strcasecmp (cur_uuid, ctx->prefix_uuid) == 0)
{
char *prefix;
prefix = grub_xasprintf ("(%s)/%s", name, ctx->prefix_path);
@ -92,7 +145,7 @@ iterate_device (const char *name, void *data)
grub_free (prefix);
ctx->prefix_found = 1;
}
if (grub_strcasecmp (cur_uuid, ctx->root_uuid) == 0)
if (ctx->root_uuid && grub_strcasecmp (cur_uuid, ctx->root_uuid) == 0)
{
grub_env_set ("root", name);
ctx->root_found = 1;
@ -109,9 +162,7 @@ grub_cmd_nativedisk (grub_command_t cmd __attribute__ ((unused)),
const char *path_prefix = 0;
int mods_loaded = 0;
grub_dl_t *mods;
struct search_ctx ctx;
const char **args;
grub_fs_autoload_hook_t saved_autoload;
int i;
if (argc == 0)
@ -138,7 +189,7 @@ grub_cmd_nativedisk (grub_command_t cmd __attribute__ ((unused)),
if (!mods)
return grub_errno;
if (get_uuid (NULL, &uuid_root))
if (get_uuid (NULL, &uuid_root, 0))
return grub_errno;
prefdev = grub_file_get_device_name (prefix);
@ -148,12 +199,15 @@ grub_cmd_nativedisk (grub_command_t cmd __attribute__ ((unused)),
prefdev = 0;
}
if (get_uuid (prefdev, &uuid_prefix))
if (get_uuid (prefdev, &uuid_prefix, 0))
{
grub_free (uuid_root);
return grub_errno;
}
grub_dprintf ("nativedisk", "uuid_prefix = %s, uuid_root = %s\n",
uuid_prefix, uuid_root);
for (mods_loaded = 0; mods_loaded < argc; mods_loaded++)
{
char *filename;
@ -205,21 +259,26 @@ grub_cmd_nativedisk (grub_command_t cmd __attribute__ ((unused)),
if (mods[i])
grub_dl_init (mods[i]);
/* No need to autoload FS since obviously we already have the necessary fs modules. */
saved_autoload = grub_fs_autoload_hook;
grub_fs_autoload_hook = 0;
if (uuid_prefix || uuid_root)
{
struct search_ctx ctx;
grub_fs_autoload_hook_t saved_autoload;
ctx.root_uuid = uuid_root;
ctx.prefix_uuid = uuid_prefix;
ctx.prefix_path = path_prefix;
ctx.prefix_found = 0;
ctx.root_found = 0;
/* No need to autoload FS since obviously we already have the necessary fs modules. */
saved_autoload = grub_fs_autoload_hook;
grub_fs_autoload_hook = 0;
/* FIXME: try to guess the correct values. */
grub_device_iterate (iterate_device, &ctx);
ctx.root_uuid = uuid_root;
ctx.prefix_uuid = uuid_prefix;
ctx.prefix_path = path_prefix;
ctx.prefix_found = !uuid_prefix;
ctx.root_found = !uuid_root;
grub_fs_autoload_hook = saved_autoload;
/* FIXME: try to guess the correct values. */
grub_device_iterate (iterate_device, &ctx);
grub_fs_autoload_hook = saved_autoload;
}
grub_free (uuid_root);
grub_free (uuid_prefix);