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Message-ID: <3c417ae0-16af-4c63-aca7-6f4a7578cb04@oracle.com>
Date: Wed, 17 Jan 2024 15:31:16 -0500
User-Agent: Mozilla Thunderbird
Subject: Re: [RFC V1 08/13] vduse: flush workers on suspend
Content-Language: en-US
To: Jason Wang <jasowang@redhat.com>
Cc: virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
        "Michael S. Tsirkin" <mst@redhat.com>,
        Si-Wei Liu <si-wei.liu@oracle.com>,
        Eugenio Perez Martin <eperezma@redhat.com>,
        Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
        Dragos Tatulea
 <dtatulea@nvidia.com>, Eli Cohen <elic@nvidia.com>,
        Xie Yongji <xieyongji@bytedance.com>
References: <1704919215-91319-1-git-send-email-steven.sistare@oracle.com>
 <1704919215-91319-9-git-send-email-steven.sistare@oracle.com>
 <CACGkMEuJ4yf4reW2SzDqgNZGBWo5Rcqeg+cFS=N7pa_gQmmDXg@mail.gmail.com>
From: Steven Sistare <steven.sistare@oracle.com>
Organization: Oracle Corporation
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On 1/10/2024 10:09 PM, Jason Wang wrote:
> On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare <steven.sistare@oracle.com> wrote:
>>
>> To pass ownership of a live vdpa device to a new process, the user
>> suspends the device, calls VHOST_NEW_OWNER to change the mm, and calls
>> VHOST_IOTLB_REMAP to change the user virtual addresses to match the new
>> mm.  Flush workers in suspend to guarantee that no worker sees the new
>> mm and old VA in between.
>>
>> Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
> 
> It seems we need a better title, probably "suspend support for vduse"?
> And it looks better to be an separate patch.

Will do - steve