Add ballooning infrastructure.

Balloon devices allow you to ask the guest to allocate memory.  This allows you
to release that memory.  It's mostly useful for freeing up large chunks of
memory from cooperative guests.

Ballooning is supported by both Xen and VirtIO.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5873 c046a42c-6fe2-441c-8c8c-71466251a162
2 files changed
tree: 5c45ae730f07c0ffc2057778a2ebd1c1419ac5a3
  1. audio/
  2. bsd-user/
  3. darwin-user/
  4. fpu/
  5. gdb-xml/
  6. hw/
  7. keymaps/
  8. linux-user/
  9. pc-bios/
  10. slirp/
  11. target-alpha/
  12. target-arm/
  13. target-cris/
  14. target-i386/
  15. target-m68k/
  16. target-mips/
  17. target-ppc/
  18. target-sh4/
  19. target-sparc/
  20. tcg/
  21. tests/
  22. .gitignore
  23. a.out.h
  24. aes.c
  25. aes.h
  26. aio.c
  27. alpha-dis.c
  28. alpha.ld
  29. arm-dis.c
  30. arm-semi.c
  31. arm.ld
  32. block-bochs.c
  33. block-cloop.c
  34. block-cow.c
  35. block-dmg.c
  36. block-nbd.c
  37. block-parallels.c
  38. block-qcow.c
  39. block-qcow2.c
  40. block-raw-posix.c
  41. block-raw-win32.c
  42. block-vmdk.c
  43. block-vpc.c
  44. block-vvfat.c
  45. block.c
  46. block.h
  47. block_int.h
  48. bswap.h
  49. bt-host.c
  50. bt-vhci.c
  51. buffered_file.c
  52. buffered_file.h
  53. Changelog
  54. check_ops.sh
  55. cocoa.m
  56. configure
  57. console.c
  58. console.h
  59. COPYING
  60. COPYING.LIB
  61. cpu-all.h
  62. cpu-defs.h
  63. cpu-exec.c
  64. cris-dis.c
  65. curses.c
  66. curses_keys.h
  67. cutils.c
  68. d3des.c
  69. d3des.h
  70. def-helper.h
  71. dis-asm.h
  72. disas.c
  73. disas.h
  74. dyngen-exec.h
  75. dyngen.c
  76. elf.h
  77. elf_ops.h
  78. exec-all.h
  79. exec.c
  80. feature_to_c.sh
  81. gdbstub.c
  82. gdbstub.h
  83. gen-icount.h
  84. host-utils.c
  85. host-utils.h
  86. hostregs_helper.h
  87. hpet.h
  88. hppa-dis.c
  89. hppa.ld
  90. i386-dis.c
  91. i386.ld
  92. ia64.ld
  93. keymaps.c
  94. kqemu.c
  95. kqemu.h
  96. kvm-all.c
  97. kvm.h
  98. LICENSE
  99. loader.c
  100. m68k-dis.c
  101. m68k-semi.c
  102. m68k.ld
  103. MAINTAINERS
  104. Makefile
  105. Makefile.target
  106. migration-exec.c
  107. migration-tcp.c
  108. migration.c
  109. migration.h
  110. mips-dis.c
  111. mips.ld
  112. mipsel.ld
  113. monitor.c
  114. nbd.c
  115. nbd.h
  116. net-checksum.c
  117. net.c
  118. net.h
  119. osdep.c
  120. osdep.h
  121. ppc-dis.c
  122. ppc.ld
  123. ppc64.ld
  124. qemu-aio.h
  125. qemu-binfmt-conf.sh
  126. qemu-char.c
  127. qemu-char.h
  128. qemu-common.h
  129. qemu-doc.texi
  130. qemu-img.c
  131. qemu-img.texi
  132. qemu-lock.h
  133. qemu-log.h
  134. qemu-malloc.c
  135. qemu-nbd.c
  136. qemu-nbd.texi
  137. qemu-sockets.c
  138. qemu-tech.texi
  139. qemu-timer.h
  140. qemu-tool.c
  141. qemu_socket.h
  142. readline.c
  143. README
  144. s390-dis.c
  145. s390.ld
  146. savevm.c
  147. sdl.c
  148. sdl_keysym.h
  149. sh4-dis.c
  150. softmmu-semi.h
  151. softmmu_defs.h
  152. softmmu_exec.h
  153. softmmu_header.h
  154. softmmu_template.h
  155. sparc-dis.c
  156. sparc.ld
  157. sparc64.ld
  158. sys-queue.h
  159. sysemu.h
  160. tap-win32.c
  161. texi2pod.pl
  162. thunk.c
  163. thunk.h
  164. TODO
  165. translate-all.c
  166. uboot_image.h
  167. usb-bsd.c
  168. usb-linux.c
  169. usb-stub.c
  170. VERSION
  171. vgafont.h
  172. vl.c
  173. vnc.c
  174. vnc_keysym.h
  175. vnchextile.h
  176. x86_64.ld
  177. x_keymap.c