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Re: [Xen-devel] Grant a partial page

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Grant a partial page
From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Fri, 11 Nov 2011 06:44:21 +0000
Cc: Daniel Castro <evil.dani@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On Thu, 2011-11-10 at 22:22 +0000, Konrad Rzeszutek Wilk wrote:
> On Thu, Nov 10, 2011 at 02:46:37PM +0900, Daniel Castro wrote:
> > Hello,
> > I to issue a grant on a page, but only partially.
> > I have a pointer to somewhere in memory and need to issue the grant
> > for such a pointer but not to the entire page.
> > I know FLAG GTF_sub_page is used for that purpose but grant_entry_v1
> > apparently has no fields for sub_page, should I change the code to use
> > Version 2 grant table entries?
> 
> Well, there is no implementation for V2 grants yet. Thought Annie just posted
> a version.

Daniel is working on SeaBIOS, not Linux...

Ian.



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