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Author SHA1 Message Date
Eric Snowberg f8679cedff sparc64: Don't use devspec to determine the OBP path 
Don't use devspec to determine the OBP path on SPARC hardware.  Within all
versions of Linux on SPARC, the devspec returns one of three values:
"none", "vnet-port", or "vdisk".  Unlike on PPC, none of these values
are useful in determining the OBP path.

Before this patch grub-ofpathname always returned the wrong value
for a virtual disk. For example:

% grub-ofpathname /dev/vdiskc2
vdisk/disk@2:b

After this patch it now returns the correct value:

% grub-ofpathname /dev/vdiskc2
/virtual-devices@100/channel-devices@200/disk@2:b

Orabug: 24459765

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2017-05-29 16:59:44 +02:00
Eric Snowberg bd4e40aadd sparc64: Close cdboot ihandle 
The ihandle is left open with a cd-core image.  This will cause a delay
booting grub from a virtual cdrom in a LDOM.  It will also cause problems
as Linux boots, since it expects the ihandle to be closed during init.

Orabug: 25911275

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2017-05-18 21:58:15 +02:00
Eric Snowberg bc220962e3 ieee1275: prevent buffer over-read 
Prevent buffer over-read in grub_machine_mmap_iterate. This was
causing phys_base from being calculated properly. This then
caused the wrong value to be placed in ramdisk_image within
struct linux_hdrs. Which prevented the ramdisk from loading on
boot.

Newer SPARC systems contain more than 8 available memory entries.

For example on a T5-8 with 2TB of memory, the memory layout could
look like this:

T5-8 Memory
reg                      00000000 30000000 0000003f b0000000
                         00000800 00000000 00000040 00000000
                         00001000 00000000 00000040 00000000
                         00001800 00000000 00000040 00000000
                         00002000 00000000 00000040 00000000
                         00002800 00000000 00000040 00000000
                         00003000 00000000 00000040 00000000
                         00003800 00000000 00000040 00000000
available                00003800 00000000 0000003f ffcae000
                         00003000 00000000 00000040 00000000
                         00002800 00000000 00000040 00000000
                         00002000 00000000 00000040 00000000
                         00001800 00000000 00000040 00000000
                         00001000 00000000 00000040 00000000
                         00000800 00000000 00000040 00000000
                         00000000 70000000 0000003f 70000000
                         00000000 6eef8000 00000000 00002000
                         00000000 30400000 00000000 3eaf6000
name                     memory

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
 2016-02-22 10:01:31 +03:00
Eric Snowberg 080a20861c OBP available region contains grub. Start at grub_phys_end. 
This prevents a problem where grub was being overwritten since
grub_phys_start does not start at a zero offset within the memory
map.
 2016-02-12 23:16:03 +01:00
Eric Snowberg 0b72543afd ofdisk: Fix devpath freeing logic. 2015-10-26 23:03:06 +01:00
Eric Snowberg 8cb4c4edbe sparc64 - use correct drive name within grub_util_sparc_setup 
Incorrect drive name was being passed into grub_util_sparc_setup,
causing the grub-install to fail.

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
 2015-10-07 19:51:57 +03:00