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[v2,06/50] KVM: s390: Move hardware setup/unsetup to init/exit

Message ID 20221130230934.1014142-7-seanjc@google.com (mailing list archive)
State Not Applicable
Headers show
Series KVM: Rework kvm_init() and hardware enabling | expand

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Commit Message

Sean Christopherson Nov. 30, 2022, 11:08 p.m. UTC 
Now that kvm_arch_hardware_setup() is called immediately after
kvm_arch_init(), fold the guts of kvm_arch_hardware_(un)setup() into
kvm_arch_{init,exit}() as a step towards dropping one of the hooks.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
---
 arch/s390/kvm/kvm-s390.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 221481a09742..97c7ccd189eb 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -331,21 +331,12 @@  static struct notifier_block kvm_clock_notifier = {
 
 int kvm_arch_hardware_setup(void *opaque)
 {
-	gmap_notifier.notifier_call = kvm_gmap_notifier;
-	gmap_register_pte_notifier(&gmap_notifier);
-	vsie_gmap_notifier.notifier_call = kvm_s390_vsie_gmap_notifier;
-	gmap_register_pte_notifier(&vsie_gmap_notifier);
-	atomic_notifier_chain_register(&s390_epoch_delta_notifier,
-				       &kvm_clock_notifier);
 	return 0;
 }
 
 void kvm_arch_hardware_unsetup(void)
 {
-	gmap_unregister_pte_notifier(&gmap_notifier);
-	gmap_unregister_pte_notifier(&vsie_gmap_notifier);
-	atomic_notifier_chain_unregister(&s390_epoch_delta_notifier,
-					 &kvm_clock_notifier);
+
 }
 
 static void allow_cpu_feat(unsigned long nr)
@@ -525,6 +516,13 @@  int kvm_arch_init(void *opaque)
 	if (rc)
 		goto err_gib;
 
+	gmap_notifier.notifier_call = kvm_gmap_notifier;
+	gmap_register_pte_notifier(&gmap_notifier);
+	vsie_gmap_notifier.notifier_call = kvm_s390_vsie_gmap_notifier;
+	gmap_register_pte_notifier(&vsie_gmap_notifier);
+	atomic_notifier_chain_register(&s390_epoch_delta_notifier,
+				       &kvm_clock_notifier);
+
 	return 0;
 
 err_gib:
@@ -541,6 +539,11 @@  int kvm_arch_init(void *opaque)
 
 void kvm_arch_exit(void)
 {
+	gmap_unregister_pte_notifier(&gmap_notifier);
+	gmap_unregister_pte_notifier(&vsie_gmap_notifier);
+	atomic_notifier_chain_unregister(&s390_epoch_delta_notifier,
+					 &kvm_clock_notifier);
+
 	kvm_s390_gib_destroy();
 	if (IS_ENABLED(CONFIG_VFIO_PCI_ZDEV_KVM))
 		kvm_s390_pci_exit();