Re: [Xen-devel] Re: Next steps with pv_ops for Xen

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

We already make the VM_FOREIGN check conditional on defined(CONFIG_XEN). We
could add defined(CONFIG_X86) as well? This would seem reasonable as a
temporary measure for the old 2.6.18 tree.

 -- Keir

On 12/12/07 08:27, "Isaku Yamahata" <yamahata@xxxxxxxxxxxxx> wrote:

> This patch breaks blktap and gntdev on ia64.
> With auto translated physmap mode enabled, bktap/gntdev update
> the pte entry with vm_insert_page(). Not direct updating it with
> the hypercall.
> So when zapping the pte entry, it is necessary to release page
> reference counting, rmapping and etc. Thus vm_normal_page() have
> to return the struct page when auto translated physmap mode is enabled.
> 
> How about passing the page struct** to the zap_pte call back
> and set it to NULL if necessary?
> (or
> Can the condition be changed to check auto trasnalted physmap mode?
> or
> Should the clean up be done in zap_pte callback?)



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