linux-kernel - Re: [PATCH V9 07/10] iommu/vt-d: Cache virtual command capability register

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Message-ID: <20200221122004.0307c789@jacob-XPS-13-9365>
Date:   Fri, 21 Feb 2020 12:20:04 -0800
From:   Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:     Auger Eric <eric.auger@...hat.com>
Cc:     iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Yi Liu <yi.l.liu@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Christoph Hellwig <hch@...radead.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>,
        Jonathan Cameron <jic23@...nel.org>,
        jacob.jun.pan@...ux.intel.com
Subject: Re: [PATCH V9 07/10] iommu/vt-d: Cache virtual command capability
 register

On Wed, 12 Feb 2020 14:00:22 +0100
Auger Eric <eric.auger@...hat.com> wrote:

> Hi Jacob,
> 
> On 1/29/20 7:01 AM, Jacob Pan wrote:
> > Virtual command registers are used in the guest only, to prevent
> > vmexit cost, we cache the capability and store it during
> > initialization.
> > 
> > Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>  
> I sent my R-b in https://lkml.org/lkml/2019/11/8/228
> Also Baolo did. Do I miss any change?
> 
> Again history log would help.
> 
You didn't miss any change. I forgot to add R-bs.

Thanks!

Jacob

> Thanks
> 
> Eric
>  [...]  
> 

[Jacob Pan]