Hi Maxime,
> -Original Message-
> From: Maxime Coquelin
> Sent: Tuesday, June 29, 2021 5:23 PM
> To: Ding, Xuan ; Xia, Chenbo
> Cc: dev@dpdk.org; Hu, Jiayu ; Pai G, Sunil
> ; Richardson, Bruce ; Van
> Haaren, Harry ; Liu, Yong ;
> Jiang, Cheng1
> Subject: Re: [PATCH v3] vhost: enable IO
Hi Xuan,
On 6/22/21 8:18 AM, Ding, Xuan wrote:
> Hi Maxime,
>
> Replies are inline.
>
>> -Original Message-
>> From: Maxime Coquelin
>> Sent: Saturday, June 19, 2021 12:18 AM
>> To: Ding, Xuan ; Xia, Chenbo
>> Cc: dev@dpdk.org; Hu, Jiayu ; Pai G, Sunil
>> ; Richardson, Bruce ; Van
>
Hi Maxime,
Replies are inline.
> -Original Message-
> From: Maxime Coquelin
> Sent: Saturday, June 19, 2021 12:18 AM
> To: Ding, Xuan ; Xia, Chenbo
> Cc: dev@dpdk.org; Hu, Jiayu ; Pai G, Sunil
> ; Richardson, Bruce ; Van
> Haaren, Harry ; Liu, Yong
> Subject: Re: [PATCH v3] vhost:
Hi Maxime,
> -Original Message-
> From: Maxime Coquelin
> Sent: Saturday, June 19, 2021 12:18 AM
> To: Ding, Xuan ; Xia, Chenbo
> Cc: dev@dpdk.org; Hu, Jiayu ; Pai G, Sunil
> ; Richardson, Bruce ;
> Van Haaren, Harry ; Liu, Yong
>
> Subject: Re: [PATCH v3] vhost: enable IOMMU for async
Hi Xuan,
On 6/3/21 7:30 PM, xuan.d...@intel.com wrote:
> From: Xuan Ding
>
> For async copy, it is unsafe to directly use the physical address.
> And current address translation from GPA to HPA via SW also takes
> CPU cycles, these can all benefit from IOMMU.
>
> Since the existing DMA engine s
From: Xuan Ding
For async copy, it is unsafe to directly use the physical address.
And current address translation from GPA to HPA via SW also takes
CPU cycles, these can all benefit from IOMMU.
Since the existing DMA engine supports to use platform IOMMU,
this patch enables IOMMU for async vhos
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