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grub2/0388-grub-core-commands-nativedisk.c-Customize-the-list-o.patch
Peter Jones f74b50e380 Rebase to upstream, fix a pile of bugs. The usual. 
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-06-12 15:37:08 -04:00

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From 25ec194a39ae32af2000600ee2e6e1d28230fa98 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Mon, 29 Apr 2013 12:14:57 +0200
Subject: [PATCH 388/482] * grub-core/commands/nativedisk.c: Customize
the list of modules on platform. Don't try to search for disks
already using native drivers.
---
ChangeLog | 5 ++
grub-core/Makefile.core.def | 4 ++
grub-core/commands/nativedisk.c | 101 +++++++++++++++++++++++++++++++---------
3 files changed, 89 insertions(+), 21 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 99a049a..1ba588d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
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
platforms.
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index dcb92ef..ebcd01d 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -510,6 +510,10 @@ module = {
module = {
name = nativedisk;
common = commands/nativedisk.c;
+
+ enable = x86;
+ enable = mips_loongson;
+ enable = mips_qemu_mips;
};
module = {
diff --git a/grub-core/commands/nativedisk.c b/grub-core/commands/nativedisk.c
index 333fc82..453faad 100644
--- a/grub-core/commands/nativedisk.c
+++ b/grub-core/commands/nativedisk.c
@@ -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);
--
1.8.2.1
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