projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| bd322087 AL |
1 | /* |
| 2 | * Virtio Support | |
| 3 | * | |
| 4 | * Copyright IBM, Corp. 2007-2008 | |
| 5 | * | |
| 6 | * Authors: | |
| 7 | * Anthony Liguori <aliguori@us.ibm.com> | |
| 8 | * Rusty Russell <rusty@rustcorp.com.au> | |
| 9 | * | |
| 10 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
| 11 | * the COPYING file in the top-level directory. | |
| 12 | * | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef _QEMU_VIRTIO_BALLOON_H | |
| 16 | #define _QEMU_VIRTIO_BALLOON_H | |
| 17 | ||
| 18 | #include "virtio.h" | |
| 19 | #include "pci.h" | |
| 20 | ||
| 21 | /* from Linux's linux/virtio_balloon.h */ | |
| 22 | ||
| 23 | /* The ID for virtio_balloon */ | |
| 24 | #define VIRTIO_ID_BALLOON 5 | |
| 25 | ||
| 26 | /* The feature bitmap for virtio balloon */ | |
| 27 | #define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */ | |
| 28 | ||
| 29 | /* Size of a PFN in the balloon interface. */ | |
| 30 | #define VIRTIO_BALLOON_PFN_SHIFT 12 | |
| 31 | ||
| 32 | struct virtio_balloon_config | |
| 33 | { | |
| 34 | /* Number of pages host wants Guest to give up. */ | |
| 35 | uint32_t num_pages; | |
| 36 | /* Number of pages we've actually got in balloon. */ | |
| 37 | uint32_t actual; | |
| 38 | }; | |
| 39 | ||
| bd322087 | 40 | #endif |