def _report_hypervisor_resource_view(self, resources):
        """Log the hypervisor's view of free resources.

        This is just a snapshot of resource usage recorded by the
        virt driver.

        The following resources are logged:
            - free memory
            - free disk
            - free CPUs
            - assignable PCI devices
        """
        free_ram_mb = resources['memory_mb'] - resources['memory_mb_used']
        free_disk_gb = resources['local_gb'] - resources['local_gb_used']
        vcpus = resources['vcpus']
        if vcpus:
            free_vcpus = vcpus - resources['vcpus_used']
            LOG.debug("Hypervisor: free VCPUs: %s", free_vcpus)
        else:
            free_vcpus = 'unknown'
            LOG.debug("Hypervisor: VCPU information unavailable")

        if (resources in 'pci_passthrough_devices' and
                resources['pci_passthrough_devices']):
            LOG.debug("Hypervisor: assignable PCI devices: %s",
                      resources['pci_passthrough_devices'])

        pci_devices = resources.get('pci_passthrough_devices')

        LOG.debug("Hypervisor/Node resource view: "
                  "name=%(node)s "
                  "free_ram=%(free_ram)sMB "
                  "free_disk=%(free_disk)sGB "
                  "free_vcpus=%(free_vcpus)s "
                  "pci_devices=%(pci_devices)s",
                  {'node': self.nodename,
                   'free_ram': free_ram_mb,
                   'free_disk': free_disk_gb,
                   'free_vcpus': free_vcpus,
                   'pci_devices': pci_devices})
dataset/ETHPy150Open openstack/nova/nova/compute/resource_tracker.py/ResourceTracker._report_hypervisor_resource_view/swapped operands of `in`