linux-kernel - Re: [virtio-dev] Re: [virtio-comment] Re: [VIRTIO PCI PATCH v5 1/1] transport-pci: Add freeze_mode to virtio_pci_common

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Message-ID: <BL1PR12MB5849B98B7D8498F02598691AE7F9A@BL1PR12MB5849.namprd12.prod.outlook.com>
Date:   Wed, 20 Sep 2023 07:53:31 +0000
From:   "Chen, Jiqian" <Jiqian.Chen@....com>
To:     "Zhu, Lingshan" <lingshan.zhu@...el.com>,
        Parav Pandit <parav@...dia.com>,
        "Chen, Jiqian" <Jiqian.Chen@....com>,
        "Michael S. Tsirkin" <mst@...hat.com>
CC:     Gerd Hoffmann <kraxel@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
        David Airlie <airlied@...hat.com>,
        Gurchetan Singh <gurchetansingh@...omium.org>,
        Chia-I Wu <olvaffe@...il.com>,
        Marc-André Lureau <marcandre.lureau@...il.com>,
        Robert Beckett <bob.beckett@...labora.com>,
        Mikhail Golubev-Ciuchea <Mikhail.Golubev-Ciuchea@...nsynergy.com>,
        "virtio-comment@...ts.oasis-open.org" 
        <virtio-comment@...ts.oasis-open.org>,
        "virtio-dev@...ts.oasis-open.org" <virtio-dev@...ts.oasis-open.org>,
        "qemu-devel@...gnu.org" <qemu-devel@...gnu.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Roger Pau Monné <roger.pau@...rix.com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Koenig, Christian" <Christian.Koenig@....com>,
        "Hildebrand, Stewart" <Stewart.Hildebrand@....com>,
        Xenia Ragiadakou <burzalodowa@...il.com>,
        "Huang, Honglei1" <Honglei1.Huang@....com>,
        "Zhang, Julia" <Julia.Zhang@....com>,
        "Huang, Ray" <Ray.Huang@....com>
Subject: Re: [virtio-dev] Re: [virtio-comment] Re: [VIRTIO PCI PATCH v5 1/1]
 transport-pci: Add freeze_mode to virtio_pci_common_cfg

Hi Lingshan,
Please reply to your own email thread, below are not related to my patches. Thanks a lot.

On 2023/9/20 15:47, Zhu, Lingshan wrote:
> 
> 
> On 9/20/2023 3:35 PM, Parav Pandit wrote:
>>> From: Zhu, Lingshan <lingshan.zhu@...el.com>
>>> Sent: Wednesday, September 20, 2023 1:00 PM
>>>
>>> On 9/20/2023 3:24 PM, Chen, Jiqian wrote:
>>>> Hi Lingshan,
>>>> It seems you reply to the wrong email thread. They are not related to my
>>> patch.
>>> These reply to Parva's comments.
>>> @Parva, if you want to discuss more about live migration, please reply in my
>>> thread, lets don't flood here.
>> You made the point that "this is not live migration".
>> I am not discussing live migration in this thread.
>>
>> I replied for the point that device restoration from suspend for physical and hypevisor based device is not a 40nsec worth of work to restore by just doing a register write.
>> This is not live or device migration. This is restoring the device context initiated by the driver owning the device.
> restore the device context should be done by the hypervisor before setting DRIVER_OK and waking up the guest, not a concern here, out of spec
> 

-- 
Best regards,
Jiqian Chen.