Displaying 2 results from an estimated 2 matches for "shadow_page_info".
2009 Jan 26
24
page ref/type count overflows
With pretty trivial user mode programs being able to crash the kernel due to
the ref counter widths in Xen being more narrow than in Linux, I started an
attempt to put together a kernel side fix. While addressing the plain
hypercalls is pretty strait forward, dealing with multicalls (both when using
them for lazy mmu mode batching and when explicitly using them in e.g.
netback - the backends are
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