From: Eric Blake <eblake@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: xen-devel@lists.xensource.com,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
jan.kiszka@siemens.com, qemu-devel@nongnu.org,
Luiz Capitulino <lcapitulino@redhat.com>,
avi@redhat.com
Subject: Re: [Qemu-devel] [PATCH v7 2/6] Introduce "save-devices-state"
Date: Fri, 16 Mar 2012 10:03:43 -0600 [thread overview]
Message-ID: <4F63645F.8070308@redhat.com> (raw)
In-Reply-To: <4F636339.3090101@codemonkey.ws>
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On 03/16/2012 09:58 AM, Anthony Liguori wrote:
>>> +These operations are normally used with migration (see migration.txt),
>>> +however it is also possible to save the state of all devices to file,
>>> +without saving the RAM or the block devices of the VM.
>>> +
>>> +This operation is called "save-devices-state" (see
>>> QMP/qmp-commands.txt)
>>
>> Is there a complimentary load-devices-state?
>
> Maybe we should call this xen-save-devices-state.
>
> As far as I'm concerned, this is a Xen specific interface, not an
> interface for general consumption.
Fair enough - and renaming it would certainly help.
>
> I would not expect libvirt to use this interface.
Good to know. In that case, adding an fd: interface isn't a priority,
after all.
--
Eric Blake eblake@redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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WARNING: multiple messages have this Message-ID (diff)
From: Eric Blake <eblake@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: xen-devel@lists.xensource.com,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
jan.kiszka@siemens.com, qemu-devel@nongnu.org,
Luiz Capitulino <lcapitulino@redhat.com>,
avi@redhat.com
Subject: Re: [PATCH v7 2/6] Introduce "save-devices-state"
Date: Fri, 16 Mar 2012 10:03:43 -0600 [thread overview]
Message-ID: <4F63645F.8070308@redhat.com> (raw)
In-Reply-To: <4F636339.3090101@codemonkey.ws>
[-- Attachment #1: Type: text/plain, Size: 887 bytes --]
On 03/16/2012 09:58 AM, Anthony Liguori wrote:
>>> +These operations are normally used with migration (see migration.txt),
>>> +however it is also possible to save the state of all devices to file,
>>> +without saving the RAM or the block devices of the VM.
>>> +
>>> +This operation is called "save-devices-state" (see
>>> QMP/qmp-commands.txt)
>>
>> Is there a complimentary load-devices-state?
>
> Maybe we should call this xen-save-devices-state.
>
> As far as I'm concerned, this is a Xen specific interface, not an
> interface for general consumption.
Fair enough - and renaming it would certainly help.
>
> I would not expect libvirt to use this interface.
Good to know. In that case, adding an fd: interface isn't a priority,
after all.
--
Eric Blake eblake@redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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next prev parent reply other threads:[~2012-03-16 16:04 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-16 12:11 [Qemu-devel] [PATCH v7 0/6] save/restore on Xen Stefano Stabellini
2012-03-16 12:11 ` Stefano Stabellini
2012-03-16 12:13 ` [Qemu-devel] [PATCH v7 1/6] cirrus_vga: do not reset videoram Stefano Stabellini
2012-03-16 12:13 ` Stefano Stabellini
2012-03-16 12:13 ` [Qemu-devel] [PATCH v7 2/6] Introduce "save-devices-state" Stefano Stabellini
2012-03-16 12:13 ` Stefano Stabellini
2012-03-16 15:49 ` [Qemu-devel] " Eric Blake
2012-03-16 15:49 ` Eric Blake
2012-03-16 15:58 ` [Qemu-devel] " Anthony Liguori
2012-03-16 15:58 ` Anthony Liguori
2012-03-16 16:03 ` Eric Blake [this message]
2012-03-16 16:03 ` Eric Blake
2012-03-19 11:48 ` [Qemu-devel] " Stefano Stabellini
2012-03-16 16:13 ` Stefano Stabellini
2012-03-16 16:13 ` Stefano Stabellini
2012-03-16 17:28 ` [Qemu-devel] " Luiz Capitulino
2012-03-16 17:28 ` Luiz Capitulino
2012-03-16 12:13 ` [Qemu-devel] [PATCH v7 3/6] Set runstate to INMIGRATE earlier Stefano Stabellini
2012-03-16 12:13 ` Stefano Stabellini
2012-03-16 12:13 ` [Qemu-devel] [PATCH v7 4/6] xen: record physmap changes to xenstore Stefano Stabellini
2012-03-16 12:13 ` Stefano Stabellini
2012-03-16 12:13 ` [Qemu-devel] [PATCH v7 5/6] xen mapcache: check if memory region has moved Stefano Stabellini
2012-03-16 12:13 ` Stefano Stabellini
2012-03-16 12:13 ` [Qemu-devel] [PATCH v7 6/6] xen: do not allocate RAM during INMIGRATE runstate Stefano Stabellini
2012-03-16 12:13 ` Stefano Stabellini
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