From 73cd6e5f7f0b8c07330c48bfec4aaa84a6921cf4 Mon Sep 17 00:00:00 2001 From: Jim Mattson Date: Wed, 3 Jun 2020 16:56:18 -0700 Subject: [PATCH] kvm: svm: Prefer vcpu->cpu to raw_smp_processor_id() 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 Reviewed-by: Oliver Upton Message-Id: <20200603235623.245638-2-jmattson@google.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm/svm.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 70a824806274..fd4a9188902c 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2992,21 +2992,18 @@ 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) -- 2.11.0