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qemu / qemu / d191d12d5f479422e16ed1d12b0222547b29036a
commitd191d12d5f479422e16ed1d12b0222547b29036a[log] [tgz]
authorStefan Weil <weil@mail.berlios.de>Mon Oct 26 16:11:16 2009 +0100
committerAnthony Liguori <aliguori@us.ibm.com>Mon Nov 09 08:43:01 2009 -0600
treedafeb368cfc86e2a8b7d69100a5d167fc363febd
parentb4558d7481aefc865b0b52bf9b285ebcf2e8b59f [diff]
qcow2: Allow qcow2 disk images with size zero

Images with disk size 0 may be used for
VM snapshots, but not to save normal block data.

It is possible to create such images using
qemu-img, but opening them later fails.

So even "qemu-img info image.qcow2" is not
possible for an image created with
"qemu-img create -f qcow2 image.qcow2 0".

This is fixed here.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2 files changed
tree: dafeb368cfc86e2a8b7d69100a5d167fc363febd
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. fpu/
  7. gdb-xml/
  8. hw/
  9. linux-user/
  10. net/
  11. pc-bios/
  12. roms/
  13. slirp/
  14. target-alpha/
  15. target-arm/
  16. target-cris/
  17. target-i386/
  18. target-m68k/
  19. target-microblaze/
  20. target-mips/
  21. target-ppc/
  22. target-sh4/
  23. target-sparc/
  24. tcg/
  25. tests/
  26. .gitignore
  27. .gitmodules
  28. a.out.h
  29. acl.c
  30. acl.h
  31. aes.c
  32. aes.h
  33. aio.c
  34. alpha-dis.c
  35. alpha.ld
  36. arm-dis.c
  37. arm-semi.c
  38. arm.ld
  39. async.c
  40. balloon.h
  41. block.c
  42. block.h
  43. block_int.h
  44. bswap.h
  45. bt-host.c
  46. bt-host.h
  47. bt-vhci.c
  48. buffered_file.c
  49. buffered_file.h
  50. cache-utils.c
  51. cache-utils.h
  52. Changelog
  53. check-qdict.c
  54. check-qint.c
  55. check-qlist.c
  56. check-qstring.c
  57. cmd.c
  58. cmd.h
  59. cocoa.m
  60. CODING_STYLE
  61. config.h
  62. configure
  63. console.c
  64. console.h
  65. COPYING
  66. COPYING.LIB
  67. cpu-all.h
  68. cpu-common.h
  69. cpu-defs.h
  70. cpu-exec.c
  71. create_config
  72. cris-dis.c
  73. curses.c
  74. curses_keys.h
  75. cutils.c
  76. d3des.c
  77. d3des.h
  78. def-helper.h
  79. device_tree.c
  80. device_tree.h
  81. dis-asm.h
  82. disas.c
  83. disas.h
  84. dma-helpers.c
  85. dma.h
  86. dyngen-exec.h
  87. elf.h
  88. envlist.c
  89. envlist.h
  90. exec-all.h
  91. exec.c
  92. feature_to_c.sh
  93. gdbstub.c
  94. gdbstub.h
  95. gen-icount.h
  96. host-utils.c
  97. host-utils.h
  98. hostregs_helper.h
  99. hpet.h
  100. hppa-dis.c
  101. hppa.ld
  102. hxtool
  103. i386-dis.c
  104. i386.ld
  105. ia64.ld
  106. ioport-user.c
  107. ioport.c
  108. ioport.h
  109. keymaps.c
  110. keymaps.h
  111. kvm-all.c
  112. kvm.h
  113. libfdt_env.h
  114. LICENSE
  115. linux-aio.c
  116. m68k-dis.c
  117. m68k-semi.c
  118. m68k.ld
  119. MAINTAINERS
  120. Makefile
  121. Makefile.hw
  122. Makefile.target
  123. Makefile.user
  124. microblaze-dis.c
  125. migration-exec.c
  126. migration-fd.c
  127. migration-tcp.c
  128. migration-unix.c
  129. migration.c
  130. migration.h
  131. mips-dis.c
  132. mips.ld
  133. module.c
  134. module.h
  135. monitor.c
  136. monitor.h
  137. nbd.c
  138. nbd.h
  139. net-checksum.c
  140. net.c
  141. net.h
  142. osdep.c
  143. osdep.h
  144. path.c
  145. pci-ids.txt
  146. posix-aio-compat.c
  147. ppc-dis.c
  148. ppc.ld
  149. ppc64.ld
  150. qdict-test-data.txt
  151. qdict.c
  152. qdict.h
  153. qemu-aio.h
  154. qemu-binfmt-conf.sh
  155. qemu-char.c
  156. qemu-char.h
  157. qemu-common.h
  158. qemu-config.c
  159. qemu-config.h
  160. qemu-doc.texi
  161. qemu-img-cmds.hx
  162. qemu-img.c
  163. qemu-img.texi
  164. qemu-io.c
  165. qemu-lock.h
  166. qemu-log.h
  167. qemu-malloc.c
  168. qemu-monitor.hx
  169. qemu-nbd.c
  170. qemu-nbd.texi
  171. qemu-option.c
  172. qemu-option.h
  173. qemu-options.hx
  174. qemu-queue.h
  175. qemu-sockets.c
  176. qemu-tech.texi
  177. qemu-thread.c
  178. qemu-thread.h
  179. qemu-timer.h
  180. qemu-tool.c
  181. qemu.sasl
  182. qemu_socket.h
  183. qint.c
  184. qint.h
  185. qlist.c
  186. qlist.h
  187. qobject.h
  188. qstring.c
  189. qstring.h
  190. readline.c
  191. readline.h
  192. README
  193. rules.mak
  194. s390-dis.c
  195. s390.ld
  196. savevm.c
  197. sdl.c
  198. sdl_keysym.h
  199. sdl_zoom.c
  200. sdl_zoom.h
  201. sdl_zoom_template.h
  202. sh4-dis.c
  203. softmmu-semi.h
  204. softmmu_defs.h
  205. softmmu_exec.h
  206. softmmu_header.h
  207. softmmu_template.h
  208. sparc-dis.c
  209. sparc.ld
  210. sparc64.ld
  211. sysemu.h
  212. targphys.h
  213. tcg-runtime.c
  214. texi2pod.pl
  215. thunk.c
  216. thunk.h
  217. TODO
  218. translate-all.c
  219. uboot_image.h
  220. usb-bsd.c
  221. usb-linux.c
  222. usb-stub.c
  223. VERSION
  224. vgafont.h
  225. vl.c
  226. vnc-auth-sasl.c
  227. vnc-auth-sasl.h
  228. vnc-auth-vencrypt.c
  229. vnc-auth-vencrypt.h
  230. vnc-tls.c
  231. vnc-tls.h
  232. vnc.c
  233. vnc.h
  234. vnc_keysym.h
  235. vnchextile.h
  236. x86_64.ld
  237. x_keymap.c
  238. x_keymap.h