diff mbox series

[v3,1/4] kvm: svm: Prefer vcpu->cpu to raw_smp_processor_id()

Message ID 20200601222416.71303-2-jmattson@google.com (mailing list archive)
State New, archived
Headers show
Series Add logical CPU to KVM_EXIT_FAIL_ENTRY info | expand

Commit Message

Jim Mattson June 1, 2020, 10:24 p.m. UTC 
The current logical processor id is cached in vcpu->cpu. Use it
instead of raw_smp_processor_id() when a kvm_vcpu struct is available.

Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
---
 arch/x86/kvm/svm/svm.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 9e333b91ff78..f0dd481be435 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -2990,21 +2990,18 @@  static int handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)
 
 static void reload_tss(struct kvm_vcpu *vcpu)
 {
-	int cpu = raw_smp_processor_id();
+	struct svm_cpu_data *sd = per_cpu(svm_data, vcpu->cpu);
 
-	struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
 	sd->tss_desc->type = 9; /* available 32/64-bit TSS */
 	load_TR_desc();
 }
 
 static void pre_svm_run(struct vcpu_svm *svm)
 {
-	int cpu = raw_smp_processor_id();
-
-	struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
+	struct svm_cpu_data *sd = per_cpu(svm_data, svm->vcpu.cpu);
 
 	if (sev_guest(svm->vcpu.kvm))
-		return pre_sev_run(svm, cpu);
+		return pre_sev_run(svm, svm->vcpu.cpu);
 
 	/* FIXME: handle wraparound of asid_generation */
 	if (svm->asid_generation != sd->asid_generation)