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KVM: MIPS: Move all vcpu init code into kvm_arch_vcpu_create()
authorSean Christopherson <sean.j.christopherson@intel.com>
Wed, 18 Dec 2019 21:55:24 +0000 (13:55 -0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 27 Jan 2020 18:59:30 +0000 (19:59 +0100)
Fold init() into create() now that the two are called back-to-back by
common KVM code (kvm_vcpu_init() calls kvm_arch_vcpu_init() as its last
action, and kvm_vm_ioctl_create_vcpu() calls kvm_arch_vcpu_create()
immediately thereafter).  Rinse and repeat for kvm_arch_vcpu_uninit()
and kvm_arch_vcpu_destroy().  This paves the way for removing
kvm_arch_vcpu_{un}init() entirely.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/mips/kvm/mips.c

index 06366e2..879a7cb 100644 (file)
@@ -294,6 +294,14 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
        kvm_debug("kvm @ %p: create cpu %d at %p\n",
                  vcpu->kvm, vcpu->vcpu_id, vcpu);
 
+       err = kvm_mips_callbacks->vcpu_init(vcpu);
+       if (err)
+               return err;
+
+       hrtimer_init(&vcpu->arch.comparecount_timer, CLOCK_MONOTONIC,
+                    HRTIMER_MODE_REL);
+       vcpu->arch.comparecount_timer.function = kvm_mips_comparecount_wakeup;
+
        /*
         * Allocate space for host mode exception handlers that handle
         * guest mode exits
@@ -307,7 +315,7 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
 
        if (!gebase) {
                err = -ENOMEM;
-               goto out;
+               goto out_uninit_vcpu;
        }
        kvm_debug("Allocated %d bytes for KVM Exception Handlers @ %p\n",
                  ALIGN(size, PAGE_SIZE), gebase);
@@ -397,7 +405,8 @@ out_free_commpage:
        kfree(vcpu->arch.kseg0_commpage);
 out_free_gebase:
        kfree(gebase);
-out:
+out_uninit_vcpu:
+       kvm_mips_callbacks->vcpu_uninit(vcpu);
        return err;
 }
 
@@ -410,6 +419,8 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
        kvm_mmu_free_memory_caches(vcpu);
        kfree(vcpu->arch.guest_ebase);
        kfree(vcpu->arch.kseg0_commpage);
+
+       kvm_mips_callbacks->vcpu_uninit(vcpu);
 }
 
 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
@@ -1221,21 +1232,12 @@ static enum hrtimer_restart kvm_mips_comparecount_wakeup(struct hrtimer *timer)
 
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 {
-       int err;
-
-       err = kvm_mips_callbacks->vcpu_init(vcpu);
-       if (err)
-               return err;
-
-       hrtimer_init(&vcpu->arch.comparecount_timer, CLOCK_MONOTONIC,
-                    HRTIMER_MODE_REL);
-       vcpu->arch.comparecount_timer.function = kvm_mips_comparecount_wakeup;
        return 0;
 }
 
 void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
 {
-       kvm_mips_callbacks->vcpu_uninit(vcpu);
+
 }
 
 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,