Re: [Qemu-devel] [PATCH] s390-bios: Skip bootmap signature entries

[Peter Oberparleiter <oberpar@linux.ibm.com>]

On 29.04.2019 15:45, Christian Borntraeger wrote:
> 
> 
> On 29.04.19 15:40, Cornelia Huck wrote:
>> On Mon, 29 Apr 2019 09:09:41 -0400
>> "Jason J. Herne" <jjherne@linux.ibm.com> wrote:
>>
>>> Newer versions of zipl have the ability to write signature entries to the boot
>>> script for secure boot. We don't yet support secure boot, but we need to skip
>>> over signature entries while reading the boot script in order to maintain our
>>> ability to boot guest operating systems that have a secure bootloader.
>>>
>>> Signed-off-by: Jason J. Herne <jjherne@linux.ibm.com>
>>> Reviewed-by: Farhan Ali <alifm@linux.ibm.com>
>>> ---
>>>  pc-bios/s390-ccw/bootmap.c | 19 +++++++++++++++++--
>>>  pc-bios/s390-ccw/bootmap.h | 10 ++++++----
>>>  2 files changed, 23 insertions(+), 6 deletions(-)
>>
>> Skipping something that we don't have support for yet, but that doesn't
>> hinder normal operation sounds reasonable; but can you point me to the
>> relevant commit implementing this in zipl or some documentation? I
>> haven't been able to find something like that in the s390-tools git
>> tree.
> 
> the s390-tools update is currently in preparation, adding Stefan and Peter.

Here's the link to the s390-tools commit that introduces the new
signature component to zipl:

https://github.com/ibm-s390-tools/s390-tools/commit/7c7e10ed8fb048efc4e0cd91b0f6fa704fba128e


-- 
Peter Oberparleiter
Linux on Z Development - IBM Germany