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Re: [PATCH] vhost-user-scsi: implement handle_output
From: |
Yongji Xie |
Subject: |
Re: [PATCH] vhost-user-scsi: implement handle_output |
Date: |
Mon, 21 Oct 2019 12:01:17 +0800 |
On Fri, 18 Oct 2019 at 19:14, Felipe Franciosi <address@hidden> wrote:
>
>
>
> > On Oct 18, 2019, at 3:59 AM, Yongji Xie <address@hidden> wrote:
> >
> > On Fri, 18 Oct 2019 at 01:17, Felipe Franciosi <address@hidden> wrote:
> >>
> >> Originally, vhost-user-scsi did not implement a handle_output callback
> >> as that didn't seem necessary. Turns out it is.
> >>
> >> Depending on which other devices are presented to a VM, SeaBIOS may
> >> decide to map vhost-user-scsi devices on the 64-bit range of the address
> >> space. As a result, SeaBIOS will kick VQs via the config space. Those
> >> land on Qemu (not the vhost backend) and are missed, causing the VM not
> >> to boot. This fixes the issue by getting Qemu to post the notification.
> >>
> > Should we fix this in vhost-user-blk too?
>
> I'm not sure vhost-user-blk suffers from the same problem. Certainly
Actually I found vhost-user-blk has the same problem in a mutilple
GPUs passthough environment.
Thanks,
Yongji
- [PATCH] vhost-user-scsi: implement handle_output, Felipe Franciosi, 2019/10/17
- Re: [PATCH] vhost-user-scsi: implement handle_output, Yongji Xie, 2019/10/17
- Re: [PATCH] vhost-user-scsi: implement handle_output, Felipe Franciosi, 2019/10/18
- Re: [PATCH] vhost-user-scsi: implement handle_output,
Yongji Xie <=
- Re: [PATCH] vhost-user-scsi: implement handle_output, Felipe Franciosi, 2019/10/21
- RE: [PATCH] vhost-user-scsi: implement handle_output, Liu, Changpeng, 2019/10/21
- Re: [PATCH] vhost-user-scsi: implement handle_output, Yongji Xie, 2019/10/21
- Re: [PATCH] vhost-user-scsi: implement handle_output, Stefan Hajnoczi, 2019/10/22
- Re: [PATCH] vhost-user-scsi: implement handle_output, Yongji Xie, 2019/10/21
Re: [PATCH] vhost-user-scsi: implement handle_output, Stefan Hajnoczi, 2019/10/21