Re: [Xen-devel] [PATCH v8 00/24] Enable L2 Cache Allocation Technology & Refactor psr.c

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Wed, Feb 15, 2017 at 04:49:15PM +0800, Yi Sun wrote:
> Hi all,
> 
> We plan to bring a new PSR (Platform Shared Resource) feature called
> Intel L2 Cache Allocation Technology (L2 CAT) to Xen.
> 
> Besides the L2 CAT implementaion, we refactor the psr.c to make it more
> flexible to add new features and fulfill the principle, open for extension
> but closed for modification. We abstract the general operations of all

Hello,

I see that you use the term "open for extension but closed for modification"
here and in order patches. Could you please clarify what this means? "closed
for modification" doesn't seem to make much sense for an open source project,
where all the code is always open for modification.

Thanks, Roger.

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