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KVM: SVM: Don't bother writing vmcb->save.rip at vCPU RESET/INIT
authorSean Christopherson <seanjc@google.com>
Tue, 13 Jul 2021 16:32:58 +0000 (09:32 -0700)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 2 Aug 2021 15:01:53 +0000 (11:01 -0400)
Drop unnecessary initialization of vmcb->save.rip during vCPU RESET/INIT,
as svm_vcpu_run() unconditionally propagates VCPU_REGS_RIP to save.rip.

No true functional change intended.

Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210713163324.627647-21-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/svm/svm.c

index f42ec7d..9007ade 100644 (file)
@@ -1253,8 +1253,7 @@ static void init_vmcb(struct kvm_vcpu *vcpu)
        svm_set_efer(vcpu, 0);
        save->dr6 = 0xffff0ff0;
        kvm_set_rflags(vcpu, X86_EFLAGS_FIXED);
-       save->rip = 0x0000fff0;
-       vcpu->arch.regs[VCPU_REGS_RIP] = save->rip;
+       vcpu->arch.regs[VCPU_REGS_RIP] = 0x0000fff0;
 
        /*
         * svm_set_cr0() sets PG and WP and clears NW and CD on save->cr0.