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KVM: x86: Introducing kvm_x86_ops VM init/destroy hooks

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Adding function pointers in struct kvm_x86_ops for processor-specific
layer to provide hooks for when KVM initialize and destroy VM.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Suravee Suthikulpanit 2016-05-04 14:09:42 -05:00 committed by Paolo Bonzini
parent dfb9595429
commit 03543133ce
2 changed files with 8 additions and 0 deletions
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3
arch/x86/include/asm/kvm_host.h
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@ -848,6 +848,9 @@ struct kvm_x86_ops {
bool (*cpu_has_high_real_mode_segbase)(void);
void (*cpuid_update)(struct kvm_vcpu *vcpu);
int (*vm_init)(struct kvm *kvm);
void (*vm_destroy)(struct kvm *kvm);
/* Create, but do not attach this VCPU */
struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
void (*vcpu_free)(struct kvm_vcpu *vcpu);

5
arch/x86/kvm/x86.c
View file

@ -7756,6 +7756,9 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
kvm_page_track_init(kvm);
kvm_mmu_init_vm(kvm);
if (kvm_x86_ops->vm_init)
return kvm_x86_ops->vm_init(kvm);
return 0;
}
@ -7877,6 +7880,8 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
x86_set_memory_region(kvm, IDENTITY_PAGETABLE_PRIVATE_MEMSLOT, 0, 0);
x86_set_memory_region(kvm, TSS_PRIVATE_MEMSLOT, 0, 0);
}
if (kvm_x86_ops->vm_destroy)
kvm_x86_ops->vm_destroy(kvm);
kvm_iommu_unmap_guest(kvm);
kfree(kvm->arch.vpic);
kfree(kvm->arch.vioapic);