Virtio console driver

This is an hvc-based virtio console driver.  It's suboptimal becuase
hvc expects to have raw access to interrupts and virtio doesn't assume
that, so it currently polls.

There are two solutions: expose hvc's "kick" interface, or wean off hvc.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 65491103e0fb..bf18d757b876 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -613,6 +613,10 @@ config HVC_XEN
         help
           Xen virtual console device driver
 
+config VIRTIO_CONSOLE
+        bool
+        select HVC_DRIVER
+
 config HVCS
         tristate "IBM Hypervisor Virtual Console Server support"
         depends on PPC_PSERIES