KVM: SVM: Remove remaining occurences of rdtscll

This patch replaces them with native_read_tsc() which can
also be used in expressions and saves a variable on the
stack in this case.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 41c996ab87e9..9a4dacab6d8a 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -763,14 +763,13 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
         int i;
 
         if (unlikely(cpu != vcpu->cpu)) {
-                u64 tsc_this, delta;
+                u64 delta;
 
                 /*
                  * Make sure that the guest sees a monotonically
                  * increasing TSC.
                  */
-                rdtscll(tsc_this);
-                delta = vcpu->arch.host_tsc - tsc_this;
+                delta = vcpu->arch.host_tsc - native_read_tsc();
                 svm->vmcb->control.tsc_offset += delta;
                 if (is_nested(svm))
                         svm->nested.hsave->control.tsc_offset += delta;
@@ -792,7 +791,7 @@ static void svm_vcpu_put(struct kvm_vcpu *vcpu)
         for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
                 wrmsrl(host_save_user_msrs[i], svm->host_user_msrs[i]);
 
-        rdtscll(vcpu->arch.host_tsc);
+        vcpu->arch.host_tsc = native_read_tsc();
 }
 
 static unsigned long svm_get_rflags(struct kvm_vcpu *vcpu)