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KVM: Push rmap into kvm_arch_memory_slot

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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>
This commit is contained in:
Takuya Yoshikawa
2012-08-01 18:03:28 +09:00
committed by Avi Kivity
parent 65fbe37c42
commit d89cc617b9
9 changed files with 49 additions and 44 deletions
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2
arch/x86/include/asm/kvm_host.h
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@@ -504,7 +504,7 @@ struct kvm_lpage_info {
};
struct kvm_arch_memory_slot {
unsigned long *rmap_pde[KVM_NR_PAGE_SIZES - 1];
unsigned long *rmap[KVM_NR_PAGE_SIZES];
struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
};