On 11/03/2017 05:29 PM, Haozhong Zhang wrote:
On 11/03/17 17:24 +0800, Xiao Guangrong wrote:
On 11/03/2017 05:02 PM, Haozhong Zhang wrote:
On 11/03/17 16:51 +0800, Haozhong Zhang wrote:
On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
Some re
On 11/03/17 16:51 +0800, Haozhong Zhang wrote:
> On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
> >
> >
> > On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
> > > Some reserved pages, such as those from NVDIMM DAX devices, are
> > > not for MMIO, and can be mapped with cached memory type for better
On 11/03/17 17:24 +0800, Xiao Guangrong wrote:
>
>
> On 11/03/2017 05:02 PM, Haozhong Zhang wrote:
> > On 11/03/17 16:51 +0800, Haozhong Zhang wrote:
> > > On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
> > > >
> > > >
> > > > On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
> > > > > Some reserve
On 11/03/17 17:10 +0800, Xiao Guangrong wrote:
>
>
> On 11/03/2017 04:51 PM, Haozhong Zhang wrote:
> > On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
> > >
> > >
> > > On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
> > > > Some reserved pages, such as those from NVDIMM DAX devices, are
> > > > n
On 11/03/2017 05:02 PM, Haozhong Zhang wrote:
On 11/03/17 16:51 +0800, Haozhong Zhang wrote:
On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
Some reserved pages, such as those from NVDIMM DAX devices, are
not for MMIO, and can be mapped with cac
On 11/03/2017 04:51 PM, Haozhong Zhang wrote:
On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
Some reserved pages, such as those from NVDIMM DAX devices, are
not for MMIO, and can be mapped with cached memory type for better
performance. However,
On 11/03/17 16:51 +0800, Haozhong Zhang wrote:
> On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
> >
> >
> > On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
> > > Some reserved pages, such as those from NVDIMM DAX devices, are
> > > not for MMIO, and can be mapped with cached memory type for better
On 11/03/17 14:54 +0800, Xiao Guangrong wrote:
>
>
> On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
> > Some reserved pages, such as those from NVDIMM DAX devices, are
> > not for MMIO, and can be mapped with cached memory type for better
> > performance. However, the above check misconceives thos
On 11/03/2017 01:53 PM, Haozhong Zhang wrote:
Some reserved pages, such as those from NVDIMM DAX devices, are
not for MMIO, and can be mapped with cached memory type for better
performance. However, the above check misconceives those pages as
MMIO. Because KVM maps MMIO pages with UC memory ty
Some reserved pages, such as those from NVDIMM DAX devices, are
not for MMIO, and can be mapped with cached memory type for better
performance. However, the above check misconceives those pages as
MMIO. Because KVM maps MMIO pages with UC memory type, the
performance of guest accesses to those pag
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