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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/include/linux/lguest_launcher.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/include/linux/lguest_launcher.h')
-rw-r--r--ANDROID_3.4.5/include/linux/lguest_launcher.h73
1 files changed, 0 insertions, 73 deletions
diff --git a/ANDROID_3.4.5/include/linux/lguest_launcher.h b/ANDROID_3.4.5/include/linux/lguest_launcher.h
deleted file mode 100644
index 495203ff..00000000
--- a/ANDROID_3.4.5/include/linux/lguest_launcher.h
+++ /dev/null
@@ -1,73 +0,0 @@
-#ifndef _LINUX_LGUEST_LAUNCHER
-#define _LINUX_LGUEST_LAUNCHER
-/* Everything the "lguest" userspace program needs to know. */
-#include <linux/types.h>
-
-/*D:010
- * Drivers
- *
- * The Guest needs devices to do anything useful. Since we don't let it touch
- * real devices (think of the damage it could do!) we provide virtual devices.
- * We could emulate a PCI bus with various devices on it, but that is a fairly
- * complex burden for the Host and suboptimal for the Guest, so we have our own
- * simple lguest bus and we use "virtio" drivers. These drivers need a set of
- * routines from us which will actually do the virtual I/O, but they handle all
- * the net/block/console stuff themselves. This means that if we want to add
- * a new device, we simply need to write a new virtio driver and create support
- * for it in the Launcher: this code won't need to change.
- *
- * Virtio devices are also used by kvm, so we can simply reuse their optimized
- * device drivers. And one day when everyone uses virtio, my plan will be
- * complete. Bwahahahah!
- *
- * Devices are described by a simplified ID, a status byte, and some "config"
- * bytes which describe this device's configuration. This is placed by the
- * Launcher just above the top of physical memory:
- */
-struct lguest_device_desc {
- /* The device type: console, network, disk etc. Type 0 terminates. */
- __u8 type;
- /* The number of virtqueues (first in config array) */
- __u8 num_vq;
- /*
- * The number of bytes of feature bits. Multiply by 2: one for host
- * features and one for Guest acknowledgements.
- */
- __u8 feature_len;
- /* The number of bytes of the config array after virtqueues. */
- __u8 config_len;
- /* A status byte, written by the Guest. */
- __u8 status;
- __u8 config[0];
-};
-
-/*D:135
- * This is how we expect the device configuration field for a virtqueue
- * to be laid out in config space.
- */
-struct lguest_vqconfig {
- /* The number of entries in the virtio_ring */
- __u16 num;
- /* The interrupt we get when something happens. */
- __u16 irq;
- /* The page number of the virtio ring for this device. */
- __u32 pfn;
-};
-/*:*/
-
-/* Write command first word is a request. */
-enum lguest_req
-{
- LHREQ_INITIALIZE, /* + base, pfnlimit, start */
- LHREQ_GETDMA, /* No longer used */
- LHREQ_IRQ, /* + irq */
- LHREQ_BREAK, /* No longer used */
- LHREQ_EVENTFD, /* + address, fd. */
-};
-
-/*
- * The alignment to use between consumer and producer parts of vring.
- * x86 pagesize for historical reasons.
- */
-#define LGUEST_VRING_ALIGN 4096
-#endif /* _LINUX_LGUEST_LAUNCHER */