Re: [Xen-devel] [PATCH v13 00/10] enable Cache QoS Monitoring (CQM) feature

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 04.08.14 at 04:16, <dongxiao.xu@xxxxxxxxx> wrote:
> Changes from v12:
>  - Address comments from Jan, like QoS feature setting when booting,
>    avoid unbound memory allocation in Xen, put resource access
>    hypercall in platform_hypercall.c to avoid creating new files, 
>    specifically enumerate L3 cache size for CQM (instead of
>    x86_cache_size), get random socket CPU in user space tools, and 
>    also some coding styles. However the continue_hypercall_on_cpu()
>    suggestion is not adopted in this version due to the potential
>    issue in our usage case.

With "the potential issue" being what? The out of context copying
to guest memory? Without having looked at the patches yet, I'm
inclined to say that's what you need to deal with, rather than
avoiding this function.

Jan


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