From d8aacf5df86a961923a2c9c547d341d64a9d9f5d Mon Sep 17 00:00:00 2001 From: Takuya Yoshikawa Date: Fri, 16 Oct 2015 17:07:01 +0900 Subject: [PATCH] KVM: x86: MMU: Remove mapping_level_dirty_bitmap() Now that it has only one caller, and its name is not so helpful for readers, remove it. The new memslot_valid_for_gpte() function makes it possible to share the common code between gfn_to_memslot_dirty_bitmap() and mapping_level(). Signed-off-by: Takuya Yoshikawa Signed-off-by: Paolo Bonzini --- arch/x86/kvm/mmu.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 890cd69..09833b0 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -851,6 +851,17 @@ static int host_mapping_level(struct kvm *kvm, gfn_t gfn) return ret; } +static inline bool memslot_valid_for_gpte(struct kvm_memory_slot *slot, + bool no_dirty_log) +{ + if (!slot || slot->flags & KVM_MEMSLOT_INVALID) + return false; + if (no_dirty_log && slot->dirty_bitmap) + return false; + + return true; +} + static struct kvm_memory_slot * gfn_to_memslot_dirty_bitmap(struct kvm_vcpu *vcpu, gfn_t gfn, bool no_dirty_log) @@ -858,25 +869,22 @@ gfn_to_memslot_dirty_bitmap(struct kvm_vcpu *vcpu, gfn_t gfn, struct kvm_memory_slot *slot; slot = kvm_vcpu_gfn_to_memslot(vcpu, gfn); - if (!slot || slot->flags & KVM_MEMSLOT_INVALID || - (no_dirty_log && slot->dirty_bitmap)) + if (!memslot_valid_for_gpte(slot, no_dirty_log)) slot = NULL; return slot; } -static bool mapping_level_dirty_bitmap(struct kvm_vcpu *vcpu, gfn_t large_gfn) -{ - return !gfn_to_memslot_dirty_bitmap(vcpu, large_gfn, true); -} - static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn, bool *force_pt_level) { int host_level, level, max_level; + struct kvm_memory_slot *slot; + + slot = kvm_vcpu_gfn_to_memslot(vcpu, large_gfn); if (likely(!*force_pt_level)) - *force_pt_level = mapping_level_dirty_bitmap(vcpu, large_gfn); + *force_pt_level = !memslot_valid_for_gpte(slot, true); if (unlikely(*force_pt_level)) return PT_PAGE_TABLE_LEVEL; -- 2.7.4