commit 03543133cea646406307870823343912c1ef0a3a
author Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Wed May 04 14:09:42 2016 -0500
committer Paolo Bonzini <pbonzini@redhat.com> Wed May 18 18:04:26 2016 +0200
tree 88d1abda922a1dec3e126abfaf8ffc68558e8964
parent dfb9595429c65f72656551b9e1ad20126486badb

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: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/include/asm/kvm_host.h

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index c99494b..d644226 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -848,6 +848,9 @@
 	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);

arch/x86/kvm/x86.c

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bcef92f..7fcaed49 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7756,6 +7756,9 @@
 	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 @@
 		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);