Re: [Xen-devel] [PATCH] x86/mm: Adjust linear uses / entries when a page loses validation

2019-11-22 Thread Jürgen Groß
On 22.11.19 19:52, George Dunlap wrote: "Linear pagetables" is a technique which involves either pointing a pagetable at itself, or to another pagetable the same or higher level. Xen has limited support for linear pagetables: A page may either point to itself, or point to another page of the same

[Xen-devel] [PATCH] x86/mm: Adjust linear uses / entries when a page loses validation

2019-11-22 Thread George Dunlap
"Linear pagetables" is a technique which involves either pointing a pagetable at itself, or to another pagetable the same or higher level. Xen has limited support for linear pagetables: A page may either point to itself, or point to another page of the same level (i.e., L2 to L2, L3 to L3, and so o