diff options
Diffstat (limited to 'drivers/kvm/kvm.h')
| -rw-r--r-- | drivers/kvm/kvm.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h index b24a86e1f434..91e0c75aca8f 100644 --- a/drivers/kvm/kvm.h +++ b/drivers/kvm/kvm.h @@ -168,6 +168,17 @@ struct kvm_mmu { u64 *pae_root; }; +#define KVM_NR_MEM_OBJS 20 + +struct kvm_mmu_memory_cache { + int nobjs; + void *objects[KVM_NR_MEM_OBJS]; +}; + +/* + * We don't want allocation failures within the mmu code, so we preallocate + * enough memory for a single page fault in a cache. + */ struct kvm_guest_debug { int enabled; unsigned long bp[4]; @@ -239,6 +250,9 @@ struct kvm_vcpu { struct kvm_mmu_page page_header_buf[KVM_NUM_MMU_PAGES]; struct kvm_mmu mmu; + struct kvm_mmu_memory_cache mmu_pte_chain_cache; + struct kvm_mmu_memory_cache mmu_rmap_desc_cache; + gfn_t last_pt_write_gfn; int last_pt_write_count; @@ -381,7 +395,7 @@ int kvm_mmu_create(struct kvm_vcpu *vcpu); int kvm_mmu_setup(struct kvm_vcpu *vcpu); int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); -void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); +void kvm_mmu_slot_remove_write_access(struct kvm_vcpu *vcpu, int slot); hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa); #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |