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From: Cornelia Huck <cohuck@redhat.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: "Jason J. Herne" <jjherne@linux.ibm.com>,
	Thomas Huth <thuth@redhat.com>,
	David Hildenbrand <david@redhat.com>,
	alifm@linux.ibm.com, qemu-devel@nongnu.org,
	qemu-s390x@nongnu.org
Subject: Re: [Qemu-devel] [qemu-s390x] [PATCH] s390-bios: Skip bootmap signature entries
Date: Mon, 6 May 2019 13:05:42 +0200	[thread overview]
Message-ID: <20190506130542.635513b1.cohuck@redhat.com> (raw)
In-Reply-To: <9493076a-6bbe-21eb-4df3-2b54dc6376b9@de.ibm.com>

On Mon, 6 May 2019 12:46:50 +0200
Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> On 06.05.19 12:34, Cornelia Huck wrote:
> > On Mon, 6 May 2019 12:18:42 +0200
> > Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> >> I think we should not. Those entries might have sematic elements that the guest
> >> wants to enforce. I do not think that this will come, but imagine a boot entry
> >> that mandates some security wishes (e.g. do only run on non-shared cores).  
> > 
> > Can we split the namespace for BOOT_SCRIPT into 'ignore if you don't
> > know what that is' and 'fail if you don't know what that is'? I'm
> > completely confused how 'optional' those entries are supposed to be...  
> 
> Since we do not know if and what future entries will come the current default
> of failing seems the best approach. We can then add things to pc-bios when
> necessary.

That's where I'm coming from: Have some values where unknown entries
lead to (desired) failure, and others where unknown entries are simply
ignored. That would give us automatic toleration for optional entries.


  reply	other threads:[~2019-05-06 11:06 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-29 13:09 [Qemu-devel] [PATCH] s390-bios: Skip bootmap signature entries Jason J. Herne
2019-04-29 13:40 ` Cornelia Huck
2019-04-29 13:40   ` Cornelia Huck
2019-04-29 13:45   ` Christian Borntraeger
2019-04-29 13:45     ` Christian Borntraeger
2019-04-30  9:24     ` Peter Oberparleiter
2019-04-30  9:24       ` Peter Oberparleiter
2019-04-30  9:44       ` Cornelia Huck
2019-04-30  9:44         ` Cornelia Huck
2019-05-03  9:34 ` Thomas Huth
2019-05-06  8:08   ` Christian Borntraeger
2019-05-06 13:03     ` Jason J. Herne
2019-05-06 10:01 ` [Qemu-devel] [qemu-s390x] " David Hildenbrand
2019-05-06 10:10   ` David Hildenbrand
2019-05-06 10:16     ` Thomas Huth
2019-05-06 10:18       ` Christian Borntraeger
2019-05-06 10:34         ` Cornelia Huck
2019-05-06 10:46           ` Christian Borntraeger
2019-05-06 11:05             ` Cornelia Huck [this message]
2019-05-06 11:13               ` Christian Borntraeger
2019-05-06 11:23                 ` Cornelia Huck
2019-05-06 11:24                   ` Christian Borntraeger
2019-05-06 10:14   ` Christian Borntraeger
2019-05-06 10:30     ` Cornelia Huck
2019-05-06 10:45       ` Christian Borntraeger

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