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| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2012-03-11 11:59:34 -0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-03-11 11:59:29 -0400 |
| commit | 4857d4bbe9821c8d732cb84455e18e12b3d79add (patch) | |
| tree | 54583e3ef5c84c04f92b7b15ea6aad8224781d9b /arch/s390/kernel/setup.c | |
| parent | ad252ffa2a0fbb1f37e81688322034b3af037cee (diff) | |
| download | linux-4857d4bbe9821c8d732cb84455e18e12b3d79add.tar.gz linux-4857d4bbe9821c8d732cb84455e18e12b3d79add.tar.bz2 linux-4857d4bbe9821c8d732cb84455e18e12b3d79add.zip | |
[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>
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 9a3edb5f2c92..38e751278bf7 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -62,6 +62,7 @@ #include <asm/ebcdic.h> #include <asm/kvm_virtio.h> #include <asm/diag.h> +#include <asm/os_info.h> #include "entry.h" long psw_kernel_bits = PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_ASC_PRIMARY | @@ -778,6 +779,7 @@ static void __init reserve_crashkernel(void) pr_info("Reserving %lluMB of memory at %lluMB " "for crashkernel (System RAM: %luMB)\n", crash_size >> 20, crash_base >> 20, memory_end >> 20); + os_info_crashkernel_add(crash_base, crash_size); #endif } @@ -1057,6 +1059,7 @@ void __init setup_arch(char **cmdline_p) parse_early_param(); + os_info_init(); setup_ipl(); setup_memory_end(); setup_addressing_mode(); |