Tim Deegan
2008-Aug-13 10:43 UTC
[Xen-devel] [PATCH] Fix shadow code''s handling of p2m superpage changes
When a p2m superpage entry is shattered, it''s important not to unshadow any parts of the 2MB region that are still there afterwards. Otherwise shattering a superpage that contains the guest''s top-level pagetable will cause the guest to be killed. Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com> -- Tim Deegan <Tim.Deegan@citrix.com> Principal Software Engineer, Citrix Systems (R&D) Ltd. [Company #02300071, SL9 0DZ, UK.] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Tim Deegan
2008-Aug-13 11:02 UTC
[Xen-devel] Re: [PATCH] Fix shadow code''s handling of p2m superpage changes
Less broken patch this time... :) At 11:43 +0100 on 13 Aug (1218627784), Tim Deegan wrote:> When a p2m superpage entry is shattered, it''s important not to > unshadow any parts of the 2MB region that are still there afterwards. > Otherwise shattering a superpage that contains the guest''s top-level > pagetable will cause the guest to be killed. > > Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com> > > -- > Tim Deegan <Tim.Deegan@citrix.com> > Principal Software Engineer, Citrix Systems (R&D) Ltd. > [Company #02300071, SL9 0DZ, UK.]_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel