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Subject: Re: [RFC PATCH 2/4] vhost-user: add the vhost-user extension to support the vhost-pci based inter-vm communication
On 11/10/2016 07:36 PM, Marc-André Lureau wrote:
Thanks for the suggestion. It looks possible. I will need to investigate more about it.HiOn Thu, Nov 10, 2016 at 6:47 AM Wei Wang <wei.w.wang@intel.com <mailto:wei.w.wang@intel.com>> wrote:This is the slave part of vhost-user implemented in QEMU, with an extension to support vhost-pci.Instead of implementing "another vhost-user slave", it would be worth investigating using libvhost-user instead (https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03990.html). This is just a suggestion, it is quite fine for vhost-pci to have its own smaller/specific vhost-user slave implementation (without virtio rings handlings etc). (libvhost-user is also very young, not yet in qemu, we should be able shape it for vhost-pci needs)
libvhost-user is still at an initial stage and not in QEMU yet, I think we can probably have vhost-pci as an independent slave for now - this will not complicate libvhost-user when it's in the initial stage (it might not be good to make it a quite complex design at the beginning), and on the other side, the vhost-pci based slave implementation draft is already there. We can merge them if it is necessary when they both are stable in QEMU. What do you think?
Best, Wei
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