CONFIG_VMD is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

Intel Volume Management Device Driver

modulename: vmd.ko

configname: CONFIG_VMD

Linux Kernel Configuration
└─>Device Drivers
└─>PCI support
└─>PCI controller drivers
└─>Intel Volume Management Device Driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Adds support for the Intel Volume Management Device (VMD). VMD is a
secondary PCI host bridge that allows PCI Express root ports,
and devices attached to them, to be removed from the default
PCI domain and placed within the VMD domain. This provides
more bus resources than are otherwise possible with a
single domain. If you know your system provides one of these and
has devices attached to it, say Y; if you are not sure, say N.

To compile this driver as a module, choose M here: the
module will be called vmd.

source code: