diff options
| author | Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> | 2013-01-08 14:45:28 +0400 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-01-14 13:13:58 +0400 |
| commit | e12091ce7bdd3c82fa392a868d1bdccecee655d5 (patch) | |
| tree | 9c53da262ec3521a1938d2282cbf0c03517d6aa6 /arch | |
| parent | b99db1d35295cb26b61a1c665f542504110b0ac3 (diff) | |
KVM: Remove unused slot_bitmap from kvm_mmu_page
Not needed any more.
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 5 | ||||
| -rw-r--r-- | arch/x86/kvm/mmu.c | 10 |
2 files changed, 0 insertions, 15 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index c431b33271f3..f75e1feb6ec5 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -219,11 +219,6 @@ struct kvm_mmu_page { u64 *spt; /* hold the gfn of each spte inside spt */ gfn_t *gfns; - /* - * One bit set per slot which has memory - * in this shadow page. - */ - DECLARE_BITMAP(slot_bitmap, KVM_MEM_SLOTS_NUM); bool unsync; int root_count; /* Currently serving as active root */ unsigned int unsync_children; diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index aeb7666eb81e..9c1b2d6158bf 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1522,7 +1522,6 @@ static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu, sp->gfns = mmu_memory_cache_alloc(&vcpu->arch.mmu_page_cache); set_page_private(virt_to_page(sp->spt), (unsigned long)sp); list_add(&sp->link, &vcpu->kvm->arch.active_mmu_pages); - bitmap_zero(sp->slot_bitmap, KVM_MEM_SLOTS_NUM); sp->parent_ptes = 0; mmu_page_add_parent_pte(vcpu, sp, parent_pte); kvm_mod_used_mmu_pages(vcpu->kvm, +1); @@ -2183,14 +2182,6 @@ int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn) } EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page); -static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn) -{ - int slot = memslot_id(kvm, gfn); - struct kvm_mmu_page *sp = page_header(__pa(pte)); - - __set_bit(slot, sp->slot_bitmap); -} - /* * The function is based on mtrr_type_lookup() in * arch/x86/kernel/cpu/mtrr/generic.c @@ -2472,7 +2463,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, ++vcpu->kvm->stat.lpages; if (is_shadow_present_pte(*sptep)) { - page_header_update_slot(vcpu->kvm, sptep, gfn); if (!was_rmapped) { rmap_count = rmap_add(vcpu, sptep, gfn); if (rmap_count > RMAP_RECYCLE_THRESHOLD) |