tree 54583e3ef5c84c04f92b7b15ea6aad8224781d9b
parent ad252ffa2a0fbb1f37e81688322034b3af037cee
author Michael Holzheu <holzheu@linux.vnet.ibm.com> 1331481574 -0400
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1331481569 -0400

[S390] kernel: Add OS info memory interface

In order to allow kdump based stand-alone dump, some information
has to be passed from the old kernel to the new dump kernel. This
is done via a the struct "os_info" that contains the following fields:
 * crashkernel base and size
 * reipl block
 * vmcoreinfo
 * init function
A pointer to os_info is stored at a well known storage location
and the whole structure as well as all fields are secured with
checksums.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>