> We use large pages, and in fact we are forced to a special area to > handle real mode exceptions called an RMA. > Consider it a permanent large page (64M) that is used for real mode, > this is our minimum memory. > In order to decrease a reservation that mean that memory must be > greater than this minimum memory by at least as much as we want to > decrease. We also want to make sure that pages that are part of the > decrease do not come from the RMA. > > Any thoughts on this would be appreciated. > Also, I know others are thinking about super-pages, any progress on > that with regard to grant transfers?You could use the copy mode of operation supported by netfront/back. Ian _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Jimi Xenidis
2006-Aug-21 18:31 UTC
Re: [Xen-devel] Some advice. VIO: netfront finally begun
On Aug 21, 2006, at 1:11 PM, Ian Pratt wrote:>> We use large pages, and in fact we are forced to a special area to >> handle real mode exceptions called an RMA. >> Consider it a permanent large page (64M) that is used for real mode, >> this is our minimum memory. >> In order to decrease a reservation that mean that memory must be >> greater than this minimum memory by at least as much as we want to >> decrease. We also want to make sure that pages that are part of the >> decrease do not come from the RMA. >> >> Any thoughts on this would be appreciated. >> Also, I know others are thinking about super-pages, any progress on >> that with regard to grant transfers? > > You could use the copy mode of operation supported by netfront/back.Do you have more info on this? My specific issue at the moment is how to deal with put_page() -JX _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel