Displaying 2 results from an estimated 2 matches for "sl2e".
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l2e
2009 Apr 22
7
Consult some concepts about shadow paging mechanism
Dear All:
I am pretty new to xen-devel, please correct me in the following.
Assume we have the following terms
GPT: guest page table
SPT: shadow page table
(Question a) When guest OS is running, is it always using SPT for
address translation? If it is the case, how does guest OS refer and
modify its own GPT content? It seems that there is a page table entry
in SPT for the GPT page.
(Question
2005 Mar 14
4
[patch/unstable] page table cleanups
...x86/shadow.c 2005-03-10 11:55:10.000000000 +0100
+++ xen/arch/x86/shadow.c 2005-03-14 12:34:26.000000000 +0100
@@ -532,13 +532,15 @@ static void shadow_map_l1_into_current_l
{
struct exec_domain *ed = current;
struct domain *d = ed->domain;
- unsigned long *gpl1e, *spl1e, gl2e, sl2e, gl1pfn, sl1mfn, sl1ss;
+ l1_pgentry_t *gpl1e, *spl1e;
+ l2_pgentry_t gl2e, sl2e;
+ unsigned long gl1pfn, sl1mfn, sl1ss;
struct pfn_info *sl1mfn_info;
int i;
__guest_get_l2e(ed, va, &gl2e);
- gl1pfn = gl2e >> PAGE_SHIFT;
+ gl1pfn...