[PATCH -V3 2/4] powerpc/kvm: Contiguous memory allocator based hash page table allocation

[Paul Mackerras]

On Tue, Jul 02, 2013 at 11:15:16AM +0530, Aneesh Kumar K.V wrote:
> From: "Aneesh Kumar K.V" <aneesh.kumar at linux.vnet.ibm.com>
> 
> Powerpc architecture uses a hash based page table mechanism for mapping virtual
> addresses to physical address. The architecture require this hash page table to
> be physically contiguous. With KVM on Powerpc currently we use early reservation
> mechanism for allocating guest hash page table. This implies that we need to
> reserve a big memory region to ensure we can create large number of guest
> simultaneously with KVM on Power. Another disadvantage is that the reserved memory
> is not available to rest of the subsystems and and that implies we limit the total
> available memory in the host.
> 
> This patch series switch the guest hash page table allocation to use
> contiguous memory allocator.
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>

Acked-by: Paul Mackerras <paulus at samba.org>