[dpdk-dev] [PATCH v2 2/5] EAL: Add new EAL "--qtest-virtio" option

Tan, Jianfeng jianfeng.tan at intel.com
Tue Feb 16 12:36:58 CET 2016


Hi David,

On 2/16/2016 1:53 PM, David Marchand wrote:
> On Wed, Feb 10, 2016 at 4:40 AM, Tetsuya Mukawa <mukawa at igel.co.jp> wrote:
>> To work with qtest virtio-net PMD, virtual address that maps hugepages
>> should be between (1 << 31) to (1 << 44). This patch adds one more option
>> to map like this. Also all hugepages should consists of one file.
>> Because of this, the option will work only when '--single-file' option is
>> specified.
> This patch is pure virtio stuff.
> Please, rework this so that we have a generic api in eal (asking for a
> free region could be of use for something else).
> Then you can call this api from virtio pmd.
>
> If you need to pass options to virtio pmd, add some devargs for it.
>

Seems it's hard to slip this option into --vdev="eth_qtest_virtio0..." 
from my side because memory initialization happens before vdev option is 
parsed.

Can we make use of "--base-virtaddr" achieve the function of this option?

Thanks,
Jianfeng


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