From d39f13b0da7fa7f705fbe6c80995205d0380bc7a Mon Sep 17 00:00:00 2001 From: Izik Eidus Date: Sun, 30 Mar 2008 16:01:25 +0300 Subject: KVM: add vm refcounting the main purpose of adding this functions is the abilaty to release the spinlock that protect the kvm list while still be able to do operations on a specific kvm in a safe way. Signed-off-by: Izik Eidus Signed-off-by: Avi Kivity --- include/linux/kvm_host.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index f4e143621e35..a2ceb51b4274 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -114,6 +114,7 @@ struct kvm { struct kvm_io_bus pio_bus; struct kvm_vm_stat stat; struct kvm_arch arch; + atomic_t users_count; }; /* The guest did something we don't support. */ @@ -140,6 +141,9 @@ int kvm_init(void *opaque, unsigned int vcpu_size, struct module *module); void kvm_exit(void); +void kvm_get_kvm(struct kvm *kvm); +void kvm_put_kvm(struct kvm *kvm); + #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } -- cgit v1.2.2