KVM: x86/mmu: fix parameters to kvm_flush_remote_tlbs_with_address

kvm_flush_remote_tlbs_with_address expects (start gfn, number of pages),
and not (start gfn, end gfn)

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210810205251.424103-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 9a7199679f62a88ce4e5edb2c1fed38bc6f37b79..3cb2808e1e5cf999af85ea4bb51b36194f9dee29 100644 (file)
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5703,13 +5703,17 @@ void kvm_zap_gfn_range(struct kvm *kvm, gfn_t gfn_start, gfn_t gfn_end)
                        }
                }
                if (flush)
-                       kvm_flush_remote_tlbs_with_address(kvm, gfn_start, gfn_end);
+                       kvm_flush_remote_tlbs_with_address(kvm, gfn_start,
+                                                          gfn_end - gfn_start);
        }
 
        if (is_tdp_mmu_enabled(kvm)) {
                for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++)
                        flush = kvm_tdp_mmu_zap_gfn_range(kvm, i, gfn_start,
                                                          gfn_end, flush);
+               if (flush)
+                       kvm_flush_remote_tlbs_with_address(kvm, gfn_start,
+                                                          gfn_end - gfn_start);
        }
 
        if (flush)