mirror of https://gitee.com/openkylin/linux.git
KVM: s390: Push run loop into __vcpu_run
Moved the do-while loop from kvm_arch_vcpu_ioctl_run into __vcpu_run and the calling of kvm_handle_sie_intercept() into vcpu_post_run() (so we can add the srcu locks in a proper way in the next patch). Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -738,6 +738,13 @@ static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
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memcpy(&vcpu->run->s.regs.gprs[14], &vcpu->arch.sie_block->gg14, 16);
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if (rc == 0) {
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if (kvm_is_ucontrol(vcpu->kvm))
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rc = -EOPNOTSUPP;
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else
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rc = kvm_handle_sie_intercept(vcpu);
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}
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return rc;
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}
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@ -745,21 +752,24 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
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{
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int rc, exit_reason;
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rc = vcpu_pre_run(vcpu);
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if (rc)
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return rc;
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do {
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rc = vcpu_pre_run(vcpu);
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if (rc)
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break;
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/*
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* As PF_VCPU will be used in fault handler, between guest_enter
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* and guest_exit should be no uaccess.
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*/
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preempt_disable();
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kvm_guest_enter();
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preempt_enable();
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exit_reason = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs);
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kvm_guest_exit();
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/*
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* As PF_VCPU will be used in fault handler, between
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* guest_enter and guest_exit should be no uaccess.
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*/
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preempt_disable();
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kvm_guest_enter();
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preempt_enable();
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exit_reason = sie64a(vcpu->arch.sie_block,
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vcpu->run->s.regs.gprs);
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kvm_guest_exit();
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rc = vcpu_post_run(vcpu, exit_reason);
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rc = vcpu_post_run(vcpu, exit_reason);
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} while (!signal_pending(current) && !rc);
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return rc;
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}
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@ -801,16 +811,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
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}
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might_fault();
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do {
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rc = __vcpu_run(vcpu);
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if (rc)
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break;
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if (kvm_is_ucontrol(vcpu->kvm))
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rc = -EOPNOTSUPP;
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else
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rc = kvm_handle_sie_intercept(vcpu);
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} while (!signal_pending(current) && !rc);
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rc = __vcpu_run(vcpu);
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if (signal_pending(current) && !rc) {
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kvm_run->exit_reason = KVM_EXIT_INTR;
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