Adding function pointers in struct kvm_x86_ops for processor-specific
layer to provide hooks for when KVM initialize and un-initialize VM.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 3 +++
arch/x86/kvm/x86.c | 6 ++++++
2 files changed, 9 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index f62a9f37..22bd70c 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -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_uninit)(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);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 742d0f7..d12583e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7754,6 +7754,9 @@ 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;
}
@@ -7781,6 +7784,9 @@ static void kvm_free_vcpus(struct kvm *kvm)
kvm_for_each_vcpu(i, vcpu, kvm)
kvm_arch_vcpu_free(vcpu);
+ if (kvm_x86_ops->vm_uninit)
+ kvm_x86_ops->vm_uninit(kvm);
+
mutex_lock(&kvm->lock);
for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
kvm->vcpus[i] = NULL;
--
1.9.1
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