KVM: x86: Add missing trace points for RDMSR/WRMSR in emulator path

Since the RDMSR/WRMSR emulation uses a sepearte emualtor interface,
the trace points for RDMSR/WRMSR can be added in emulator path like
normal path.
Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com>
Link: https://lore.kernel.org/r/39181a9f777a72d61a4d0bb9f6984ccbd1de2ea3.1661930557.git.houwenlong.hwl@antgroup.comSigned-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/x86.c

@@ -7927,9 +7927,12 @@ static int emulator_get_msr_with_filter(struct x86_emulate_ctxt *ctxt,
 		if (kvm_msr_user_space(vcpu, msr_index, KVM_EXIT_X86_RDMSR, 0,
 				       complete_emulated_rdmsr, r))
 			return X86EMUL_IO_NEEDED;
+
+		trace_kvm_msr_read_ex(msr_index);
 		return X86EMUL_PROPAGATE_FAULT;
 	}
 
+	trace_kvm_msr_read(msr_index, *pdata);
 	return X86EMUL_CONTINUE;
 }
 
@@ -7947,9 +7950,12 @@ static int emulator_set_msr_with_filter(struct x86_emulate_ctxt *ctxt,
 		if (kvm_msr_user_space(vcpu, msr_index, KVM_EXIT_X86_WRMSR, data,
 				       complete_emulated_msr_access, r))
 			return X86EMUL_IO_NEEDED;
+
+		trace_kvm_msr_write_ex(msr_index, data);
 		return X86EMUL_PROPAGATE_FAULT;
 	}
 
+	trace_kvm_msr_write(msr_index, data);
 	return X86EMUL_CONTINUE;
 }