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Re: [Xen-devel] [PATCH] VT-d: Chop down the DMAR_OPERATION_TIMEOUT to a low number of milliseconds.

To: "Xu, Quan" <quan.xu@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Tue, 15 Mar 2016 04:37:52 +0000
Accept-language: en-US
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, "Wu, Feng" <feng.wu@xxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
Delivery-date: Tue, 15 Mar 2016 04:38:01 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>
Thread-index: AQHRfcHDG8ckCUCSz0+ACTk0XA2DZp9Z7TAg
Thread-topic: [PATCH] VT-d: Chop down the DMAR_OPERATION_TIMEOUT to a low number of milliseconds.

> From: Xu, Quan
> Sent: Monday, March 14, 2016 3:16 PM
> 
> We confirmed with VT-d hardware team that 1ms is large enough for IOMMU
> internal flush. So We can change the DMAR_OPERATION_TIMEOUT from 1000 ms
> to 1 ms.
> 
> Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
> 

Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>

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References:
- [Xen-devel] [PATCH] VT-d: Chop down the DMAR_OPERATION_TIMEOUT to a low number of milliseconds.
  - From: Quan Xu

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