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From: "Xie, Huawei" <huawei.xie@intel.com>
To: Yuanhan Liu <yuanhan.liu@linux.intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Thread-Topic: [PATCH v2 7/7] virtio: add 1.0 support
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Date: Thu, 14 Jan 2016 07:47:17 +0000
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Cc: "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [dpdk-dev] [PATCH v2 7/7] virtio: add 1.0 support
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On 1/12/2016 2:58 PM, Yuanhan Liu wrote:=0A=
> Modern (v1.0) virtio pci device defines several pci capabilities.=0A=
[snip]=0A=
> +static void=0A=
> +modern_notify_queue(struct virtio_hw *hw __rte_unused, struct virtqueue =
*vq)=0A=
> +{=0A=
> +	modern_write16(1, vq->notify_addr);=0A=
> +}=0A=
=0A=
Does virtio 1.0 only supports MMIO? MMIO has long VMEXIT latency than=0A=
PORT IO.=0A=
=0A=
[snip]=0A=