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Commit 03543133 authored by Suravee Suthikulpanit's avatar Suravee Suthikulpanit Committed by Paolo Bonzini
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KVM: x86: Introducing kvm_x86_ops VM init/destroy hooks 



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: default avatarSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent dfb95954

arch/x86/include/asm/kvm_host.h

+3 −0
Original line number Original line Diff line number Diff line
@@ -848,6 +848,9 @@ struct kvm_x86_ops { 
	bool (*cpu_has_high_real_mode_segbase)(void);

	bool (*cpu_has_high_real_mode_segbase)(void);

	void (*cpuid_update)(struct kvm_vcpu *vcpu);

	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 */

	/* Create, but do not attach this VCPU */

	struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);

	struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);

	void (*vcpu_free)(struct kvm_vcpu *vcpu);

	void (*vcpu_free)(struct kvm_vcpu *vcpu);

arch/x86/kvm/x86.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -7756,6 +7756,9 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) 
	kvm_page_track_init(kvm);

	kvm_page_track_init(kvm);

	kvm_mmu_init_vm(kvm);

	kvm_mmu_init_vm(kvm);





	if (kvm_x86_ops->vm_init)

		return kvm_x86_ops->vm_init(kvm);



	return 0;

	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, IDENTITY_PAGETABLE_PRIVATE_MEMSLOT, 0, 0);

		x86_set_memory_region(kvm, TSS_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);

	kvm_iommu_unmap_guest(kvm);

	kfree(kvm->arch.vpic);

	kfree(kvm->arch.vpic);

	kfree(kvm->arch.vioapic);

	kfree(kvm->arch.vioapic);