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From: Carsten Otte <carsteno@de.ibm.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Carsten Otte <cotte@de.ibm.com>, Alexander Graf <agraf@suse.de>,
	Aurelien Jarno <aurelien@aurel32.net>,
	qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 12/13] Add zipl bootloader interpreter
Date: Wed, 25 Nov 2009 09:59:12 +0100	[thread overview]
Message-ID: <4B0CF1E0.4030103@de.ibm.com> (raw)
In-Reply-To: <4B0C2BB7.5010203@codemonkey.ws>

Anthony Liguori wrote:
> This is a bit unfortunate.  Wouldn't it be better to write a custom 
> version of zipl that ran in the guest?
> 
> This is like implementing grub in qemu (or pygrub in Xen).  The level of 
> security exposure this introduces is really scary.
Oh that's really the wrong way to see it. We don't have bios, and 
therefore we need _some_ functionality to start up initial code on the 
disk. The interface that Alex is implementing is also used by the real 
hardware to load from disk in case a scsi/fcp volume is used, and it is 
part of the published machine architecture. That's very unlike grub.

  parent reply	other threads:[~2009-11-25  8:58 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-24 17:29 [Qemu-devel] [PATCH 00/13] S390x KVM support v4 Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 01/13] S/390 CPU fake emulation Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 02/13] S/390 host/target build system support Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 03/13] S/390 fake TCG implementation Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 04/13] Add KVM support for S390x Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 05/13] Allocate physical memory in low virtual address space Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 06/13] Add support for S390x system emulation Alexander Graf
2009-11-25 11:46   ` Paul Brook
2009-11-25 11:47     ` Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 07/13] Add S390x virtio machine bus Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 08/13] Add S390x virtio machine description Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 09/13] S390 GDB stub Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 10/13] Implement early printk in virtio-console Alexander Graf
2009-11-24 18:55   ` Anthony Liguori
2009-11-24 18:56     ` Alexander Graf
2009-11-24 19:25       ` Anthony Liguori
2009-11-24 19:27         ` Alexander Graf
2009-11-24 19:30           ` Anthony Liguori
2009-11-24 19:32             ` Alexander Graf
2009-11-24 19:48               ` Anthony Liguori
2009-11-24 19:58                 ` Alexander Graf
2009-11-25 10:00             ` Carsten Otte
2009-11-25 13:14               ` Arnd Bergmann
2009-11-25 13:47                 ` Carsten Otte
2009-11-25  9:03     ` Carsten Otte
2009-11-24 17:29 ` [Qemu-devel] [PATCH 11/13] Set default console to virtio on S390x Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 12/13] Add zipl bootloader interpreter Alexander Graf
2009-11-24 18:53   ` Anthony Liguori
2009-11-24 18:56     ` Alexander Graf
2009-11-24 19:26       ` Anthony Liguori
2009-11-24 19:29         ` Alexander Graf
2009-11-24 20:39           ` Mark Williamson
2009-11-24 21:10             ` Anthony Liguori
2009-11-25  8:35               ` Hannes Reinecke
2009-11-25  8:38                 ` Alexander Graf
2009-11-25 10:09                 ` Carsten Otte
2009-11-25 10:02               ` Carsten Otte
2009-11-25  9:58         ` Carsten Otte
2009-11-25  8:59     ` Carsten Otte [this message]
2009-11-24 17:29 ` [Qemu-devel] [PATCH 13/13] Add S390 maintainer information Alexander Graf

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