Function vm_snapshot_req

freebsd/amd64/vmm/vmm.c:2852–2894

* Save kernel-side structures to user-space for snapshotting. */

 * Save kernel-side structures to user-space for snapshotting.
 */
int
vm_snapshot_req(struct vm *vm, struct vm_snapshot_meta *meta)
{
	int ret = 0;

	switch (meta->dev_req) {
	case STRUCT_VMX:
		ret = vmmops_snapshot(vm->cookie, meta);
		break;
	case STRUCT_VMCX:
		ret = vm_snapshot_vmcx(vm, meta);
		break;
	case STRUCT_VM:
		ret = vm_snapshot_vm(vm, meta);
		break;
	case STRUCT_VIOAPIC:
		ret = vioapic_snapshot(vm_ioapic(vm), meta);
		break;
	case STRUCT_VLAPIC:
		ret = vlapic_snapshot(vm, meta);
		break;
	case STRUCT_VHPET:
		ret = vhpet_snapshot(vm_hpet(vm), meta);
		break;
	case STRUCT_VATPIC:
		ret = vatpic_snapshot(vm_atpic(vm), meta);
		break;
	case STRUCT_VATPIT:
		ret = vatpit_snapshot(vm_atpit(vm), meta);
		break;
	case STRUCT_VPMTMR:
		ret = vpmtmr_snapshot(vm_pmtmr(vm), meta);
		break;
	case STRUCT_VRTC:
		ret = vrtc_snapshot(vm_rtc(vm), meta);
		break;
	default:
		printf("%s: failed to find the requested type %#x\n",
		       __func__, meta->dev_req);
		ret = (EINVAL);
	}
	return (ret);
}

int
vm_set_tsc_offset(struct vm *vm, int vcpuid, uint64_t offset)