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Re: [qemu-s390x] [PATCH] s390-bios: Skip bootmap signature entries


From: Cornelia Huck
Subject: Re: [qemu-s390x] [PATCH] s390-bios: Skip bootmap signature entries
Date: Mon, 29 Apr 2019 15:40:03 +0200

On Mon, 29 Apr 2019 09:09:41 -0400
"Jason J. Herne" <address@hidden> 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 <address@hidden>
> Reviewed-by: Farhan Ali <address@hidden>
> ---
>  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.



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