Re: [Qemu-devel] Fwd: How live migration work for vhost-user

2019-04-29 Thread Dr. David Alan Gilbert
* fengyd (fengy...@gmail.com) wrote: > Hi, > > For vhost, *last_avail_idx* is maintained in vhost_virtqueue > but during live migration, *last_avail_idx* is fetched from VirtQueue. > Do you know how these two *last_avail_idx *are synchronized? > > virtio_load related code which is called durin

Re: [Qemu-devel] Fwd: How live migration work for vhost-user

2019-04-29 Thread Dr. David Alan Gilbert
* fengyd (fengy...@gmail.com) wrote: > Hi, > > I want to add some log to qemu-kvm-ev. > Do you know how to compile qemu-kvm-ev from source code? That's our downstream package build; it should build fine with rpmbuild, or you can configure and build it like any other qemu. Dave > Thanks > > Yaf

Re: [Qemu-devel] Fwd: How live migration work for vhost-user

2019-04-23 Thread fengyd
Hi, For vhost, *last_avail_idx* is maintained in vhost_virtqueue but during live migration, *last_avail_idx* is fetched from VirtQueue. Do you know how these two *last_avail_idx *are synchronized? virtio_load related code which is called during live migration: * vdev->vq[i].inuse = (uint16_t)

Re: [Qemu-devel] Fwd: How live migration work for vhost-user

2019-04-22 Thread fengyd
Hi, I want to add some log to qemu-kvm-ev. Do you know how to compile qemu-kvm-ev from source code? Thanks Yafeng On Tue, 16 Apr 2019 at 16:47, Dr. David Alan Gilbert wrote: > * fengyd (fengy...@gmail.com) wrote: > > -- Forwarded message - > > From: fengyd > > Date: Tue, 16 A

Re: [Qemu-devel] Fwd: How live migration work for vhost-user

2019-04-16 Thread Dr. David Alan Gilbert
* fengyd (fengy...@gmail.com) wrote: > -- Forwarded message - > From: fengyd > Date: Tue, 16 Apr 2019 at 09:17 > Subject: Re: [Qemu-devel] How live migration work for vhost-user > To: Dr. David Alan Gilbert > > > Hi, > > Any special feature needs to be supported on guest driver

[Qemu-devel] Fwd: How live migration work for vhost-user

2019-04-16 Thread fengyd
-- Forwarded message - From: fengyd Date: Tue, 16 Apr 2019 at 09:17 Subject: Re: [Qemu-devel] How live migration work for vhost-user To: Dr. David Alan Gilbert Hi, Any special feature needs to be supported on guest driver? Because it's OK for standard Linux VM, but not OK for o