From: "Mike D. Day" <ncmike@us.ibm.com>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>,
xen-devel@lists.xensource.com,
lkml <linux-kernel@vger.kernel.org>, Greg KH <greg@kroah.com>
Subject: Re: [ PATCH 2.6.16-rc3-xen 3/3] sysfs: export Xen hypervisor attributes to sysfs
Date: Wed, 22 Feb 2006 07:37:49 -0500 [thread overview]
Message-ID: <43FC5B1D.5040901@us.ibm.com> (raw)
In-Reply-To: <20060222123250.GB9295@osiris.boeblingen.de.ibm.com>
Heiko Carstens wrote:
>> You can also set the standard that any other hypervisor has to
>> follow! :)
>
> I doubt that there is much that different hypervisors can share.
> Why should all this be visible for user space anyway? What's the purpose?
In Xen at least, hypervisor management and control programs run in user
space in a "privileged" domain (or virtual machine). Systems management
agents in user space on the privileged domain need to know this
information, and sysfs is a good place to expose it.
Mike
--
WARNING: multiple messages have this Message-ID (diff)
From: "Mike D. Day" <ncmike@us.ibm.com>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Greg KH <greg@kroah.com>,
xen-devel@lists.xensource.com, Dave Hansen <haveblue@us.ibm.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [ PATCH 2.6.16-rc3-xen 3/3] sysfs: export Xen hypervisor attributes to sysfs
Date: Wed, 22 Feb 2006 07:37:49 -0500 [thread overview]
Message-ID: <43FC5B1D.5040901@us.ibm.com> (raw)
In-Reply-To: <20060222123250.GB9295@osiris.boeblingen.de.ibm.com>
Heiko Carstens wrote:
>> You can also set the standard that any other hypervisor has to
>> follow! :)
>
> I doubt that there is much that different hypervisors can share.
> Why should all this be visible for user space anyway? What's the purpose?
In Xen at least, hypervisor management and control programs run in user
space in a "privileged" domain (or virtual machine). Systems management
agents in user space on the privileged domain need to know this
information, and sysfs is a good place to expose it.
Mike
--
next prev parent reply other threads:[~2006-02-22 12:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-21 14:40 [ PATCH 2.6.16-rc3-xen 3/3] sysfs: export Xen hypervisor attributes to sysfs Mike D. Day
2006-02-21 17:15 ` Dave Hansen
2006-02-21 17:15 ` Dave Hansen
2006-02-21 17:48 ` Mike D. Day
2006-02-21 17:48 ` Mike D. Day
2006-02-22 12:32 ` Heiko Carstens
2006-02-22 12:37 ` Mike D. Day [this message]
2006-02-22 12:37 ` Mike D. Day
2006-02-22 12:56 ` Arjan van de Ven
2006-02-22 13:06 ` Mike D. Day
2006-02-22 13:06 ` Mike D. Day
2006-02-22 13:19 ` Heiko Carstens
2006-02-22 13:43 ` Mike D. Day
2006-02-22 13:43 ` Mike D. Day
2006-02-22 14:01 ` Arjan van de Ven
2006-02-22 16:08 ` Mike D. Day
2006-02-23 4:26 ` Anthony Liguori
2006-02-23 4:26 ` Anthony Liguori
2006-02-23 8:24 ` Arjan van de Ven
2006-02-21 18:02 ` Alan Cox
2006-02-21 18:10 ` Greg KH
2006-02-22 12:26 ` Heiko Carstens
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