Re: [Xen-devel] [PATCH] x86/PAE partially linear page table support

[Keir Fraser <keir@xxxxxxxxxxxxx>]

How do you ensure that circular references are correctly cleaned up at
domain destruction time? (i.e., A references B and B references A).

We have special destructore code to clean up all root pagetable references,
but the code isn't there for lower levels.

 -- Keir

On 15/2/07 09:41, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> While full linear page table support makes little sense (and would be more
> complicated to implement), partial linear page table support is almost
> identical
> to that in non-PAE, and is used (at least) by NetWare.
> 
> Of course, the question here is whether this shouldn't be generalized - all
> validated page tables (except for top level PAE) could be allowed to be
> installed
> at lower levels using the same scheme.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>


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