Dear friends, I''m working on Xen''s Dom0, my question is how we can enable the shadow page table or hardware assistant page table for it (the Dom0). Thanks in advance. Regards _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Sat, Dec 10, 2011 at 9:54 AM, jack nemati <hn_nemati1985@yahoo.com>wrote:> Dear friends, > > I''m working on Xen''s Dom0, my question is how we can enable the shadow > page table or hardware assistant page table for it (the Dom0). Thanks in > advance. > > You can''t enable HAP at the moment. What do you want to do with shadowpagetables? -George _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Dear George Dunlap, I just need to enable the Xen shadow page table ( if HAP is not possible) in that I need to take the control of dom0''s pages in order to modify their control flags. is there any solution for this problem. it''s noticeable that, I have enabled this feature by directly setting of the opt_dom0_shadow init variable but I cause some CPU stall. thanks in advance. Regards --- On Mon, 12/12/11, George Dunlap <dunlapg@umich.edu> wrote: From: George Dunlap <dunlapg@umich.edu> Subject: Re: [Xen-devel] Xen shadow page table To: "jack nemati" <hn_nemati1985@yahoo.com> Cc: xen-devel@lists.xensource.com Date: Monday, December 12, 2011, 5:05 AM On Sat, Dec 10, 2011 at 9:54 AM, jack nemati <hn_nemati1985@yahoo.com> wrote: Dear friends, I''m working on Xen''s Dom0, my question is how we can enable the shadow page table or hardware assistant page table for it (the Dom0). Thanks in advance. You can''t enable HAP at the moment. What do you want to do with shadow pagetables? -George -----Inline Attachment Follows----- _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hello, (Please don''t top-post) At 03:02 -0800 on 12 Dec (1323658959), jack nemati wrote:> I just need to enable the Xen shadow page table (if HAP is not > possible) in that I need to take the control of dom0''s pages in order > to modify their control flags. is there any solution for this problem.The way to enable shadow pagetables for dom0 is the "dom0_shadow" command-line option to xen.> it''s noticeable that, I have enabled this feature by directly setting > of the opt_dom0_shadow init variable but I cause some CPU stall.It works fine for me (with a 64-bit dom0 on 64-bit xen from xen-unstable tip, on an Intel Xeon E5520). There must be something different about your setup that causes it to fail. (Please read http://wiki.xen.org/wiki/Reporting_Bugs_against_Xen about how to report errors in Xen.) Cheers,