From: Roman Kagan <rkagan@virtuozzo.com>
Date: Thu, 1 Feb 2018 16:48:31 +0300
Patch-mainline: v4.17-rc1
Subject: kvm: x86: factor out kvm.arch.hyperv (de)init
Git-commit: cbc0236a4b3e6a64f5b8bee27b530c7f8bee8d56
References: bsc#1107207
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Move kvm.arch.hyperv initialization and cleanup to separate functions.
For now only a mutex is inited in the former, and the latter is empty;
more stuff will go in there in a followup patch.
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Acked-by: Olaf Hering <ohering@suse.de>
---
arch/x86/kvm/hyperv.c | 9 +++++++++
arch/x86/kvm/hyperv.h | 3 +++
arch/x86/kvm/x86.c | 3 ++-
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1301,3 +1301,12 @@ set_result:
kvm_hv_hypercall_set_result(vcpu, ret);
return 1;
}
+
+void kvm_hv_init_vm(struct kvm *kvm)
+{
+ mutex_init(&kvm->arch.hyperv.hv_lock);
+}
+
+void kvm_hv_destroy_vm(struct kvm *kvm)
+{
+}
diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
--- a/arch/x86/kvm/hyperv.h
+++ b/arch/x86/kvm/hyperv.h
@@ -88,4 +88,7 @@ void kvm_hv_process_stimers(struct kvm_vcpu *vcpu);
void kvm_hv_setup_tsc_page(struct kvm *kvm,
struct pvclock_vcpu_time_info *hv_clock);
+void kvm_hv_init_vm(struct kvm *kvm);
+void kvm_hv_destroy_vm(struct kvm *kvm);
+
#endif
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8447,7 +8447,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
raw_spin_lock_init(&kvm->arch.tsc_write_lock);
mutex_init(&kvm->arch.apic_map_lock);
- mutex_init(&kvm->arch.hyperv.hv_lock);
spin_lock_init(&kvm->arch.pvclock_gtod_sync_lock);
kvm->arch.kvmclock_offset = -ktime_get_boot_ns();
@@ -8456,6 +8455,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
INIT_DELAYED_WORK(&kvm->arch.kvmclock_update_work, kvmclock_update_fn);
INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn);
+ kvm_hv_init_vm(kvm);
kvm_page_track_init(kvm);
kvm_mmu_init_vm(kvm);
@@ -8586,6 +8586,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
kvfree(rcu_dereference_check(kvm->arch.apic_map, 1));
kvm_mmu_uninit_vm(kvm);
kvm_page_track_cleanup(kvm);
+ kvm_hv_destroy_vm(kvm);
}
void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,