kernel.git/drivers/char/virtio_console.c, branch linux-2.6.28.y

hvc_console: Add a hangup notifier for backends

2008-10-21T23:59:54Z

I have added a hangup notifier that can be used by hvc console backends to handle a tty hangup. The default irq hangup notifier calls the notifier_del_irq() for compatibility. Acked-by: Christian Borntraeger Signed-off-by: Hendrik Brueckner Signed-off-by: Benjamin Herrenschmidt

virtio_console: use virtqueue notification for hvc_console

2008-07-25T02:06:06Z

This patch exploits the new notifier callbacks of the hvc_console. We can use the virtio callbacks instead of the polling code. Signed-off-by: Christian Borntraeger Signed-off-by: Rusty Russell

virtio: simplify config mechanism.

2008-02-04T12:49:57Z

Previously we used a type/len pair within the config space, but this seems overkill. We now simply define a structure which represents the layout in the config space: the config space can now only be extended at the end. The main driver-visible changes: 1) We indicate what fields are present with an explicit feature bit. 2) Virtqueues are explicitly numbered, and not in the config space. Signed-off-by: Rusty Russell

virtio/virtcons: fix section mismatch warning

2007-11-05T23:12:32Z

Make virtcons_probe() __devinit. Fixes this section warning: WARNING: vmlinux.o(.text+0x14c10b): Section mismatch: reference to .init.text:hvc_alloc (between 'virtcons_probe' and 'ac_register_board') Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Virtio console driver

2007-10-23T05:49:55Z

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