Re: [PATCH v3 19/20] xen/privcmd: Add support for Linux 64KB page granularity

From	Julien Grall <julien.grall@citrix.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3 19/20] xen/privcmd: Add support for Linux 64KB page granularity
Date	2015-09-01 19:20 +0200
Message-ID	<q3XnY-4ya-1@gated-at.bofh.it> (permalink)
References	<pUT0e-5e5-15@gated-at.bofh.it> <pUTtg-61C-15@gated-at.bofh.it> <pVU3U-5R8-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi Stefano,

On 10/08/15 13:03, Stefano Stabellini wrote:
>> +			xen_pfn = xen_page_to_pfn(page);
>> +		}
>> +		fn(pfn_to_gfn(xen_pfn++), data);
> 
> What is the purpose of incrementing xen_pfn here?

Because the Linux page is split into multiple xen_pfn, so we want to get
the next xen_pfn for the next iteration.

Regards,

-- 
Julien Grall
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Re: [PATCH v3 19/20] xen/privcmd: Add support for Linux 64KB page  granularity Julien Grall <julien.grall@citrix.com> - 2015-09-01 19:20 +0200

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