From: Thomas Huth <thuth@xxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
arch/s390/kvm/kvm-s390.c | 49 ++++++++++++++++++++++++------------------------
1 file changed, 25 insertions(+), 24 deletions(-)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 69c7592..8eec7ab 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -738,6 +738,13 @@ static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
memcpy(&vcpu->run->s.regs.gprs[14], &vcpu->arch.sie_block->gg14, 16);
+ if (rc == 0) {
+ if (kvm_is_ucontrol(vcpu->kvm))
+ rc = -EOPNOTSUPP;
+ else
+ rc = kvm_handle_sie_intercept(vcpu);
+ }
+
return rc;
}
@@ -745,21 +752,24 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
{
int rc, exit_reason;
- rc = vcpu_pre_run(vcpu);
- if (rc)
- return rc;
-
- /*
- * As PF_VCPU will be used in fault handler, between guest_enter
- * and guest_exit should be no uaccess.
- */
- preempt_disable();
- kvm_guest_enter();
- preempt_enable();
- exit_reason = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs);
- kvm_guest_exit();
+ do {
+ rc = vcpu_pre_run(vcpu);
+ if (rc)
+ break;
- rc = vcpu_post_run(vcpu, exit_reason);
+ /*
+ * As PF_VCPU will be used in fault handler, between
+ * guest_enter and guest_exit should be no uaccess.
+ */
+ preempt_disable();
+ kvm_guest_enter();
+ preempt_enable();
+ exit_reason = sie64a(vcpu->arch.sie_block,
+ vcpu->run->s.regs.gprs);
+ kvm_guest_exit();
+
+ rc = vcpu_post_run(vcpu, exit_reason);
+ } while (!signal_pending(current) && !rc);
return rc;
}
@@ -801,16 +811,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
}
might_fault();
-
- do {
- rc = __vcpu_run(vcpu);
- if (rc)
- break;
- if (kvm_is_ucontrol(vcpu->kvm))
- rc = -EOPNOTSUPP;
- else
- rc = kvm_handle_sie_intercept(vcpu);
- } while (!signal_pending(current) && !rc);
+ rc = __vcpu_run(vcpu);
if (signal_pending(current) && !rc) {
kvm_run->exit_reason = KVM_EXIT_INTR;
--
1.8.3.1
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