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Create ELF notes for the vector registers where applicable, so that
their contents can be examined by utilities such as crash or readelf.
Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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Provide a routine to access the correct floating point register,
to simplify future expansion.
Suggested-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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This fixes warnings from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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The prstatus of an s390x dump contains several padding areas. Zero out
these bytes to make reading the notes section easier with a hexdump.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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RAMBlock.offset --> GuestPhysBlock.target_start
RAMBlock.offset + RAMBlock.length --> GuestPhysBlock.target_end
RAMBlock.length --> GuestPhysBlock.target_end -
GuestPhysBlock.target_start
"GuestPhysBlock.host_addr" is only used when writing the dump contents.
This patch enables "crash" to work with the vmcore by rebasing the vmcore
from the left side of the following diagram to the right side:
host-private
offset
relative
to ram_addr RAMBlock guest-visible paddrs
0 +-------------------+.....+-------------------+ 0
| ^ | | ^ |
| 640 KB | | 640 KB |
| v | | v |
0x0000a0000 +-------------------+.....+-------------------+ 0x0000a0000
| ^ | |XXXXXXXXXXXXXXXXXXX|
| 384 KB | |XXXXXXXXXXXXXXXXXXX|
| v | |XXXXXXXXXXXXXXXXXXX|
0x000100000 +-------------------+.....+-------------------+ 0x000100000
| ^ | | ^ |
| 3583 MB | | 3583 MB |
| v | | v |
0x0e0000000 +-------------------+.....+-------------------+ 0x0e0000000
| ^ |. |XXXXXXXXXXXXXXXXXXX|
| above_4g_mem_size | . |XXXX PCI hole XXXXX|
| v | . |XXXX XXXXX|
ram_size +-------------------+ . |XXXX 512 MB XXXXX|
. .|XXXXXXXXXXXXXXXXXXX|
. +-------------------+ 0x100000000
. | ^ |
. | above_4g_mem_size |
.| v |
+-------------------+ ram_size
+ 512 MB
Related RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=981582
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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With this patch dump-guest-memory on s390 produces an ELF formatted,
crash-readable dump.
In order to implement this, the arch-specific part of dump-guest-memory
was added:
target-s390x/arch_dump.c contains the whole set of function for writing
Elf note sections of all types for s390x.
Signed-off-by: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
[fixed indentation, use CamelCase, rename note_t to Note, use S390CPU]
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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