@@ -942,6 +942,8 @@ struct kvm_x86_ops {
bool (*cpu_has_high_real_mode_segbase)(void);
void (*cpuid_update)(struct kvm_vcpu *vcpu);
+ struct kvm *(*vm_alloc)(void);
+ void (*vm_free)(struct kvm *);
int (*vm_init)(struct kvm *kvm);
void (*vm_destroy)(struct kvm *kvm);
@@ -1115,6 +1117,17 @@ struct kvm_arch_async_pf {
extern struct kvm_x86_ops *kvm_x86_ops;
+#define __KVM_HAVE_ARCH_VM_ALLOC
+static inline struct kvm *kvm_arch_alloc_vm(void)
+{
+ return kvm_x86_ops->vm_alloc();
+}
+
+static inline void kvm_arch_free_vm(struct kvm *kvm)
+{
+ return kvm_x86_ops->vm_free(kvm);
+}
+
int kvm_mmu_module_init(void);
void kvm_mmu_module_exit(void);
@@ -1714,6 +1714,16 @@ static void __unregister_enc_region_locked(struct kvm *kvm,
kfree(region);
}
+static struct kvm *svm_vm_alloc(void)
+{
+ return kzalloc(sizeof(struct kvm), GFP_KERNEL);
+}
+
+static void svm_vm_free(struct kvm *kvm)
+{
+ kfree(kvm);
+}
+
static void sev_vm_destroy(struct kvm *kvm)
{
struct kvm_sev_info *sev = &kvm->arch.sev_info;
@@ -6878,6 +6888,8 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
.vcpu_free = svm_free_vcpu,
.vcpu_reset = svm_vcpu_reset,
+ .vm_alloc = svm_vm_alloc,
+ .vm_free = svm_vm_free,
.vm_init = avic_vm_init,
.vm_destroy = svm_vm_destroy,
@@ -9731,6 +9731,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
}
STACK_FRAME_NON_STANDARD(vmx_vcpu_run);
+static struct kvm *vmx_vm_alloc(void)
+{
+ return kzalloc(sizeof(struct kvm), GFP_KERNEL);
+}
+
+static void vmx_vm_free(struct kvm *kvm)
+{
+ kfree(kvm);
+}
+
static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -12387,6 +12397,9 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
.cpu_has_accelerated_tpr = report_flexpriority,
.cpu_has_high_real_mode_segbase = vmx_has_high_real_mode_segbase,
+ .vm_alloc = vmx_vm_alloc,
+ .vm_free = vmx_vm_free,
+
.vcpu_create = vmx_create_vcpu,
.vcpu_free = vmx_free_vcpu,
.vcpu_reset = vmx_vcpu_reset,
Define kvm_arch_[alloc|free]_vm in x86 as pass through functions to new kvm_x86_ops vm_alloc and vm_free, and move the current allocation logic as-is to SVM and VMX. Vendor specific alloc/free functions set the stage for SVM/VMX wrappers of 'struct kvm', which will allow us to move the growing number of SVM/VMX specific member variables out of 'struct kvm_arch'. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> --- arch/x86/include/asm/kvm_host.h | 13 +++++++++++++ arch/x86/kvm/svm.c | 12 ++++++++++++ arch/x86/kvm/vmx.c | 13 +++++++++++++ 3 files changed, 38 insertions(+)