KVM: nVMX: Avoid one redundant vmcs_read in prepare_vmcs12
IDT_VECTORING_INFO_FIELD was already read right after vmexit.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index f7d2242..238c59b 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7404,8 +7404,7 @@
vmcs12->vm_exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
vmcs12->vm_exit_intr_error_code = vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
- vmcs12->idt_vectoring_info_field =
- vmcs_read32(IDT_VECTORING_INFO_FIELD);
+ vmcs12->idt_vectoring_info_field = to_vmx(vcpu)->idt_vectoring_info;
vmcs12->idt_vectoring_error_code =
vmcs_read32(IDT_VECTORING_ERROR_CODE);
vmcs12->vm_exit_instruction_len = vmcs_read32(VM_EXIT_INSTRUCTION_LEN);