From: "Michael S. Tsirkin" <mst@redhat.com>
To: "Gaohaifeng (A)" <gaohaifeng.gao@huawei.com>
Cc: "pbonzini@redhat.com" <pbonzini@redhat.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"Lilijun (Jerry)" <jerry.lilijun@huawei.com>
Subject: Re: [Qemu-devel] [Question] about vhost user Interface
Date: Thu, 26 Feb 2015 10:36:25 +0100 [thread overview]
Message-ID: <20150226093625.GA24766@redhat.com> (raw)
In-Reply-To: <47CEA9C0E570484FBF22EF0D7EBCE5B534A4984F@szxema505-mbs.china.huawei.com>
On Thu, Feb 26, 2015 at 09:30:40AM +0000, Gaohaifeng (A) wrote:
> Hi
>
> I want to use pxe to install a guest os whose nic type is vhost user. However
> pxe rom doesn’t support msi-x interrupt, so qemu won’t start vhost net.
>
> Call relationship:
>
> virtio_net_vhost_status-> vhost_net_query-> vhost_dev_query->
> virtio_pci_query_guest_notifiers -> msix_enabled
>
>
>
> In my test, I remove the msix check for vhost user interface and successfully
> install the guest os by pxe.
>
> Is it OK to do like this and will it cause other problems?
>
>
>
> Thanks.
>
> Haifeng Gao
>
I think we should fix it.
As a quick hack, you should be able to just use vhostforce.
--
MST
next prev parent reply other threads:[~2015-02-26 9:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-26 9:30 [Qemu-devel] [Question] about vhost user Interface Gaohaifeng (A)
2015-02-26 9:36 ` Michael S. Tsirkin [this message]
2015-02-26 11:55 ` Nikolay Nikolaev
2015-02-26 12:01 ` Michael S. Tsirkin
2015-02-27 8:47 ` gaohaifeng
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