Merge tag 'virtio-for-linus' of git://git.kernel.org/pub/scm/linux/ke…

…rnel/git/rusty/linux-2.6-for-linus

Pull virtio updates from Rusty Russell.

* tag 'virtio-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  virtio: fix typo in comment
  virtio-mmio: Devices parameter parsing
  virtio_blk: Drop unused request tracking list
  virtio-blk: Fix hot-unplug race in remove method
  virtio: Use ida to allocate virtio index
  virtio: balloon: separate out common code between remove and freeze functions
  virtio: balloon: drop restore_common()
  9p: disconnect channel when PCI device is removed
  virtio: update documentation to v0.9.5 of spec

Documentation/kernel-parameters.txt

@@ -110,6 +110,7 @@ parameter is applicable:
 	USB	USB support is enabled.
 	USBHID	USB Human Interface Device support is enabled.
 	V4L	Video For Linux support is enabled.
+	VMMIO   Driver for memory mapped virtio devices is enabled.
 	VGA	The VGA console has been enabled.
 	VT	Virtual terminal support is enabled.
 	WDT	Watchdog support is enabled.
@@ -2932,6 +2933,22 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	video=		[FB] Frame buffer configuration
 			See Documentation/fb/modedb.txt.
 
+	virtio_mmio.device=
+			[VMMIO] Memory mapped virtio (platform) device.
+
+				<size>@<baseaddr>:<irq>[:<id>]
+			where:
+				<size>     := size (can use standard suffixes
+						like K, M and G)
+				<baseaddr> := physical base address
+				<irq>      := interrupt number (as passed to
+						request_irq())
+				<id>       := (optional) platform device id
+			example:
+				virtio_mmio.device=1K@0x100b0000:48:7
+
+			Can be used multiple times for multiple devices.
+
 	vga=		[BOOT,X86-32] Select a particular video mode
 			See Documentation/x86/boot.txt and
 			Documentation/svga.txt.