kvm: mmu: ITLB_MULTIHIT mitigation

[linux-2.6-block.git] / arch / x86 / include / asm / kvm_host.h

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 50eb430b0ad8f0733906b31691c489fb8adb53f4..a37b03483b66cfef8c40f0044e0c7d426a96862f 100644 (file)
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -315,6 +315,7 @@ struct kvm_mmu_page {
        bool unsync;
        u8 mmu_valid_gen;
        bool mmio_cached;
+       bool lpage_disallowed; /* Can't be replaced by an equiv large page */
 
        /*
         * The following two entries are used to key the shadow page in the
@@ -946,6 +947,7 @@ struct kvm_vm_stat {
        ulong mmu_unsync;
        ulong remote_tlb_flush;
        ulong lpages;
+       ulong nx_lpage_splits;
        ulong max_mmu_page_hash_collisions;
 };
 
@@ -1189,7 +1191,7 @@ struct kvm_x86_ops {
        int (*set_nested_state)(struct kvm_vcpu *vcpu,
                                struct kvm_nested_state __user *user_kvm_nested_state,
                                struct kvm_nested_state *kvm_state);
-       void (*get_vmcs12_pages)(struct kvm_vcpu *vcpu);
+       bool (*get_vmcs12_pages)(struct kvm_vcpu *vcpu);
 
        int (*smi_allowed)(struct kvm_vcpu *vcpu);
        int (*pre_enter_smm)(struct kvm_vcpu *vcpu, char *smstate);