Hi ALL:
Recently I review the vhost-user hotplug codes, when attach a vhost-user nic
with multiqueue, it seems that it doesn't pass mq=on and vectors num to qemu.
Is there any special consideration or just a small mistake? Parts of codes:
qemuDomainAttachNetDevice(vhostfdSize is 0 when type is vh
INT32("vectors", VirtIOPCIProxy, nvectors, 3))
So that qemu init msix table with 3 vectors(qemu function:
msix_init_exclusive_bar), this will cause Guest can only use 3 interrupts at
most. Actually, it use
Two, one for config one for other virtqueues.
> On 30.11.2016 08:41, Gaohaifeng
OK. I will try to provide a patch.
On 30.11.2016 10:02, Gaohaifeng (A) wrote:
> I think we should pass it. Two reasons:
> 1. in none hotplug, we will pass it. We can see from libvirt function
> qemuBuildVhostuserCommandLine, it will pass queue num as vhostfdSize
> 2. If we don