[RFC,42/42] KVM: VMX: Notify importers of exported TDP to flush TLBs on KVM flushes EPT

Commit Message

Yan Zhao Dec. 2, 2023, 9:37 a.m. UTC

Call TDP FD helper to notify importers of exported TDP to flush TLBs when
KVM flushes EPT.

Signed-off-by: Yan Zhao <[e-mail]>
---
 arch/x86/kvm/vmx/vmx.c | 3 +++
 1 file changed, 3 insertions(+)

Patch

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 2fec351a3fa5b..3a2b6ddcde108 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7547,6 +7547,9 @@  static int vmx_vcpu_create(struct kvm_vcpu *vcpu)
 static int vmx_flush_remote_tlbs_range(struct kvm *kvm, gfn_t gfn, gfn_t nr_pages)
 {
 	kvm_make_all_cpus_request(kvm, KVM_REQ_TLB_FLUSH);
+#if IS_ENABLED(CONFIG_KVM_INTEL_EXPORTED_EPT)
+	kvm_tdp_fd_flush_notify(kvm, gfn, nr_pages);
+#endif
 	return 0;
 }