3 Commits

Author	SHA1	Message	Date
Collin L. Walling	f717891084	s390-ccw: print zipl boot menu ... When the boot menu options are present and the guest's disk has been configured by the zipl tool, then the user will be presented with an interactive boot menu with labeled entries. An example of what the menu might look like: zIPL v1.37.1-build-20170714 interactive boot menu. 0. default (linux-4.13.0) 1. linux-4.13.0 2. performance 3. kvm Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>	2018-02-26 07:56:55 +01:00
Collin L. Walling	ba831b2526	s390-ccw: read stage2 boot loader data to find menu ... Read the stage2 boot loader data block-by-block. We scan the current block for the string "zIPL" to detect the start of the boot menu banner. We then load the adjacent blocks (previous block and next block) to account for the possibility of menu data spanning multiple blocks. Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>	2018-02-26 07:56:55 +01:00
Collin L. Walling	9eaa654ab3	s390-ccw: set up interactive boot menu parameters ... Reads boot menu flag and timeout values from the iplb and sets the respective fields for the menu. Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>	2018-02-26 07:56:55 +01:00