diff options
| author | Alexander Yarygin <yarygin@linux.vnet.ibm.com> | 2015-07-31 17:04:51 +0300 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2016-05-17 15:50:29 +0200 |
| commit | d046c51dad3bda03e4c012c83411842b92271542 (patch) | |
| tree | 1e23abd83114274998f2dc6f3cad2c9127cbf822 /os-win32.c | |
| parent | 3041e3bead8df443e5212ae8a608cbec81bc90bd (diff) | |
pc-bios/s390-ccw: Get device address via diag 308/6
To IPL from a device, pc-bios receives from qemu a device address via
general register 7. The better way to do it is to use diag308/6
instruction which returns so called
"IplParameterBlock". IplParameterBlock contains the device address for
IPL and additional parameters that can be used by pc-bios.
This patch allows pc-bios to get device address via diag308/6 and
doesn't use gr7 passed boot information anymore.
Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'os-win32.c')
0 files changed, 0 insertions, 0 deletions