[S390] hvc_iucv: allocate memory buffers for IUCV in zone DMA

[deliverable/linux.git] / drivers / char / Kconfig

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index e023682be2c464302ca157cfa65e672485746b8c..3141dd3b6e530f6dc264c04ce089609e1fadd164 100644 (file)
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -666,6 +666,14 @@ config VIRTIO_CONSOLE
        help
          Virtio console for use with lguest and other hypervisors.
 
+         Also serves as a general-purpose serial device for data
+         transfer between the guest and host.  Character devices at
+         /dev/vportNpn will be created when corresponding ports are
+         found, where N is the device number and n is the port number
+         within that device.  If specified by the host, a sysfs
+         attribute called 'name' will be populated with a name for
+         the port which can be used by udev scripts to create a
+         symlink to the device.
 
 config HVCS
        tristate "IBM Hypervisor Virtual Console Server support"