On 2/20/23 10:45 AM, Thomas Huth wrote:
On 20/02/2023 16.13, Jared Rossi wrote:
Hi,
Pinging this patch since v2.26.0 of s390-tools adds ECKD DASD
list-directed IPL.
This patch set allows QEMU to utilize that new boot pointer format.
Any feedback about what needs to be changed for acceptance is much
appreciated.
Where did you send your patches to? I can't find it in neither my
qemu-s390x nor my qemu-devel mailing list folders.
Thomas
Hi Thomas,
I tried to send them toqemu-s3...@nongnu.org andqemu-de...@nongnu.org lists
with some additional people (including you)
in CC. The initial mail was on January 30th. I can resend them if there was a
problem with the delivery.
Regards,
Jared Rossi
On 1/30/23 4:24 PM, Jared Rossi wrote:
Add support for List-Directed IPL (LD-IPL) type pointers.
We check for a boot record indicating LD-IPL and use it if it is valid,
otherwise we use the CCW CDL or LDL format as usual. When a block is
accessed
during IPL the block number is first calculated based on the
cylinder, head,
and record numbers included in the block pointer; if LD-IPL has been
initiated
then each pointer will be interpreted using the new format.
For simplicity, there is no choice presented to forcibly use CCW-IPL
if LD-IPL
is available. Because both sets of pointers ultimately go to the same
kernel/initrd, using CCW- or LD-IPL is transparent to the user.
One aspect of the user experience that does change is the
availability of the
interactive boot menu when a loadparm is not specified. For the
existing
CCW-IPL, when the user does not specify a loadparm they are
presented with a
list of boot options; however, this list is only written in the old
style
pointers. Therefore, if no loadparm is specified, and LD-IPL is
supported, the
default boot option will be used automatically.
Jared Rossi (1):
pc-bios: Add support for List-Directed IPL from ECKD DASD
pc-bios/s390-ccw/bootmap.c | 157
++++++++++++++++++++++++++++---------
pc-bios/s390-ccw/bootmap.h | 30 ++++++-
2 files changed, 148 insertions(+), 39 deletions(-)
