You can more simply just have the existing xmalloc interface go at
alloc_domheap_pages(NULL) on x86/64. That would just need some #ifdef
abstraction within xmalloc.c.
 -- Keir
On 29/8/08 18:12, "Daniel Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:
> This patch uses some #define-and-Makefile trickery to completely
> leverage common/xmalloc.c to provide a sub-page memory
> allocator that takes memory from anonymous domain heap instead
> of xen heap. Note that it is useful only on a 64-bit hypervisor.
> (Some other #define trickery can be used so that 32-bit
> hypervisor uses xenheap and 64-bit hypervisor uses adheap.)
>
> Keir says that a goal for 3.4 is to combine xen heap and
> domain heap on 64-bit hypervisors. This is a step in that
> direction that I am using today in some work that requires
> more memory than xenheap can provide (which I'll hopefully
> post sometime in the next few weeks).
>
> Comments?
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