[PATCH 15/15] sparc64: ignore hypervisor reboot memory block device

[Eric Snowberg <eric.snowberg@oracle.com>]

Ignore the hypervisor's reboot memory block device. Newer sun4v hardware
contain a block device for the hypervisor.  This block device should
not be used by anyone else.

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
---
 grub-core/disk/ieee1275/ofdisk.c |    3 +++
 grub-core/kern/ieee1275/cmain.c  |    1 +
 include/grub/ieee1275/ieee1275.h |    2 ++
 3 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/grub-core/disk/ieee1275/ofdisk.c b/grub-core/disk/ieee1275/ofdisk.c
index 17d082b..5405be8 100644
--- a/grub-core/disk/ieee1275/ofdisk.c
+++ b/grub-core/disk/ieee1275/ofdisk.c
@@ -524,6 +524,9 @@ dev_iterate (const struct grub_ieee1275_devalias *alias)
   if (!grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_NO_TREE_SCANNING_FOR_DISKS)
       && grub_strcmp (alias->type, "block") == 0)
     {
+      if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_IGNORE_REBOOT_DEV)
+          && grub_strstr (alias->path, "reboot-memory"))
+        return;
       dev_iterate_real (alias->path, alias->path);
       return;
     }
diff --git a/grub-core/kern/ieee1275/cmain.c b/grub-core/kern/ieee1275/cmain.c
index 59271ae..844862f 100644
--- a/grub-core/kern/ieee1275/cmain.c
+++ b/grub-core/kern/ieee1275/cmain.c
@@ -113,6 +113,7 @@ grub_ieee1275_find_options (void)
 	{
 	  grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_CACHE_OPEN);
 	  grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_VALIDATE_DEV_ALIASES);
+	  grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_IGNORE_REBOOT_DEV);
 	}
 
       for (ptr = tmp; ptr - tmp < actual; ptr += grub_strlen (ptr) + 1)
diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
index 7644956..fdd123d 100644
--- a/include/grub/ieee1275/ieee1275.h
+++ b/include/grub/ieee1275/ieee1275.h
@@ -150,6 +150,8 @@ enum grub_ieee1275_flag
   GRUB_IEEE1275_FLAG_CACHE_OPEN,
 
   GRUB_IEEE1275_FLAG_VALIDATE_DEV_ALIASES,
+
+  GRUB_IEEE1275_FLAG_IGNORE_REBOOT_DEV,
 };
 
 extern int EXPORT_FUNC(grub_ieee1275_test_flag) (enum grub_ieee1275_flag flag);
-- 
1.7.1