On 04/02/2010 07:41 AM, Marek Olszewski wrote:
quoted text
> When a guest OS writes to a shadowed (and therefore page protected) 
> guest page table, does the resulting page fault get handled in 
> paging_tmpl.h:xxx_page_fault or does it call some rmap related code 
> directly? 

page faults are dispatched to the page_fault callback.

quoted text
> Also, what does the "direct" mmu page role mean?
>

It means that the page maps the linear range (gfn << 12)..(((gfn + (1 << 
level*9))) << 12) instead of shadowing a guest page table at gfn.  
Useful for real mode, large pages, and tdp.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html