From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir@xensource.com>
Subject: Re: Should Qemu monitor be enabled by default
Date: Tue, 10 Apr 2007 10:22:32 +0100
Message-ID: <C24115E8.D03B%keir@xensource.com>
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To: "You, Yongkang" <yongkang.you@intel.com>, Christian Limpach <Christian.Limpach@xensource.com>, "Daniel P. Berrange" <berrange@redhat.com>
Cc: xen-devel@lists.xensource.com
List-Id: xen-devel@lists.xenproject.org

The right answer here is to plumb the qemu monitor interface into xend, and
provide a method for accessing the interesting monitor commands from xm.
It's already assumed that an xm user is privileged. This also provides a
more consistent administrator experience: requiring to issue some commands
directly at the qemu monitor interface is kinda cheesy.

 -- Keir

On 10/4/07 06:34, "You, Yongkang" <yongkang.you@intel.com> wrote:

> Hi Christian and Daniel,
> 
> I have read the original discussion about the security purpose concern for
> removing the ioemu monitor. For the CD-ROM configuration, if we only give 'r'
> readonly permission to hdc:cdrom device, user can not write to the file
> directly.
> 
> For example:
> disk = [ 'file:/var/image1,hda,w', 'file:/var/boot.iso,hdc:cdrom,r' ]
> 
> Best Regards,
> Yongkang (Kangkang) 永康
> 
>> -----Original Message-----
>> From: xen-devel-bounces@lists.xensource.com
>> [mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of You,
>> Yongkang
>> Sent: 2007年4月10日 11:36
>> To: Christian Limpach
>> Cc: xen-devel@lists.xensource.com
>> Subject: [Xen-devel] Should Qemu monitor be enabled by default
>> 
>> Hi Christian,
>> 
>> We noticed you removed the Qemu's default monitor & serial console in
>> changeset 14609. As we didn't use qemu serial console frequently and also
>> has "xm console", it can be removed. But for qemu monitor, I think we'd
>> better
>> to keep it by default, it is because it has become the important function of
>> HVM.
>> 
>> 1. We have to use monitor to switch CD-ROM files. This is significant when
>> installation with multi CDs.
>> 2. We need to use monitor to send the short combined keys to HVM (e.g.
>> ctrl-alt-delete, ctrl-alt-f2 etc.). This is a "couldn't dropped" feature of
>> HVM. :)
>> 
>> So, how about adding it back?
>> 
>> Best Regards,
>> Yongkang (Kangkang) 永康
>> 
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
> 
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