Re: [Xen-devel] [PATCH v2 2/2] xen/arm: support gzip compressed kernels

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2015-09-01 at 15:57 +0100, Stefano Stabellini wrote:
> 
> > I'm not sure to see how this would work. Any call to 
> > alloc_xenheap_pages
> > should be follow by a called to free_xenheap_pages.
> > But when freeing the modules, we are using init_heap_pages.
> > I don't think they are similar.
> 
> Actually init_heap_pages is just a wrapper around free_heap_pages, like
> free_xenheap_pages. I think it is safe to call init_heap_pages, on
> memory allocated by alloc_xenheap_pages.

That probably depends on lots of things, in particular the setting of
CONFIG_SEPARATE_XENHEAP and in any case I think it should be avoided as a
matter of principal.

Also, modules are freed to the domheap not the xenheap. 

Maybe it would be best if this memory was allocated from there?

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel