KVM: x86/mmu: Make walk_shadow_page_lockless_{begin,end} interoperate with the TDP MMU

[mirror_ubuntu-jammy-kernel.git] / arch / x86 / kvm / mmu / tdp_mmu.h

diff --git a/arch/x86/kvm/mmu/tdp_mmu.h b/arch/x86/kvm/mmu/tdp_mmu.h
index 1cae4485b3bc5f316e7d4f0076b566dc014dc908..93e1bf5089c4e6dc64d7b5687b30cae80b53bcf6 100644 (file)
--- a/arch/x86/kvm/mmu/tdp_mmu.h
+++ b/arch/x86/kvm/mmu/tdp_mmu.h
@@ -77,6 +77,16 @@ bool kvm_tdp_mmu_write_protect_gfn(struct kvm *kvm,
                                   struct kvm_memory_slot *slot, gfn_t gfn,
                                   int min_level);
 
+static inline void kvm_tdp_mmu_walk_lockless_begin(void)
+{
+       rcu_read_lock();
+}
+
+static inline void kvm_tdp_mmu_walk_lockless_end(void)
+{
+       rcu_read_unlock();
+}
+
 int kvm_tdp_mmu_get_walk(struct kvm_vcpu *vcpu, u64 addr, u64 *sptes,
                         int *root_level);