KVM: Drop unused evaluations from string pio handlers

Looks like neither the direction nor the rep prefix are used anymore.
Drop related evaluations from SVM's and VMX's I/O exit handlers.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

2 files changed, 2 insertions, 6 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 1c4a018bf4bb..22e88a4a51c7 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1194,7 +1194,7 @@ static int shutdown_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
 static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
 {
         u32 io_info = svm->vmcb->control.exit_info_1; /* address size bug? */
-        int size, down, in, string, rep;
+        int size, in, string;
         unsigned port;
 
         ++svm->vcpu.stat.io_exits;
@@ -1213,8 +1213,6 @@ static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
         in = (io_info & SVM_IOIO_TYPE_MASK) != 0;
         port = io_info >> 16;
         size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
-        rep = (io_info & SVM_IOIO_REP_MASK) != 0;
-        down = (svm->vmcb->save.rflags & X86_EFLAGS_DF) != 0;
 
         skip_emulated_instruction(&svm->vcpu);
         return kvm_emulate_pio(&svm->vcpu, kvm_run, in, size, port);
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index df454de8acfa..509b35305402 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2698,7 +2698,7 @@ static int handle_triple_fault(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 static int handle_io(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
         unsigned long exit_qualification;
-        int size, down, in, string, rep;
+        int size, in, string;
         unsigned port;
 
         ++vcpu->stat.io_exits;
@@ -2714,8 +2714,6 @@ static int handle_io(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 
         size = (exit_qualification & 7) + 1;
         in = (exit_qualification & 8) != 0;
-        down = (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_DF) != 0;
-        rep = (exit_qualification & 32) != 0;
         port = exit_qualification >> 16;
 
         skip_emulated_instruction(vcpu);