KVM: Push rmap into kvm_arch_memory_slot

Two reasons:
 - x86 can integrate rmap and rmap_pde and remove heuristics in
   __gfn_to_rmap().
 - Some architectures do not need rmap.

Since rmap is one of the most memory consuming stuff in KVM, ppc'd
better restrict the allocation to Book3S HV.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index dbc65f9d6a2b..3c16f0f1fe35 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -213,7 +213,6 @@ struct kvm_memory_slot {
         gfn_t base_gfn;
         unsigned long npages;
         unsigned long flags;
-        unsigned long *rmap;
         unsigned long *dirty_bitmap;
         struct kvm_arch_memory_slot arch;
         unsigned long userspace_addr;