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KVM: support device deassignment

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Support device deassignment, it can be used in device hotplug.

Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Weidong Han
2008-12-02 21:24:23 +08:00
committed by Joerg Roedel
parent 260782bcfd
commit 0a92035674
3 changed files with 74 additions and 0 deletions
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8
include/linux/kvm_host.h
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@ -334,6 +334,8 @@ int kvm_iommu_map_guest(struct kvm *kvm);
int kvm_iommu_unmap_guest(struct kvm *kvm);
int kvm_assign_device(struct kvm *kvm,
struct kvm_assigned_dev_kernel *assigned_dev);
int kvm_deassign_device(struct kvm *kvm,
struct kvm_assigned_dev_kernel *assigned_dev);
#else /* CONFIG_DMAR */
static inline int kvm_iommu_map_pages(struct kvm *kvm,
gfn_t base_gfn,
@ -357,6 +359,12 @@ static inline int kvm_assign_device(struct kvm *kvm,
{
return 0;
}
static inline int kvm_deassign_device(struct kvm *kvm,
struct kvm_assigned_dev_kernel *assigned_dev)
{
return 0;
}
#endif /* CONFIG_DMAR */
static inline void kvm_guest_enter(void)