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qemu / qemu / 21df65b6444858ddee3a86d8666571bb41695614
commit21df65b6444858ddee3a86d8666571bb41695614[log] [tgz]
authorAnthony Liguori <aliguori@us.ibm.com>Fri Dec 17 15:58:22 2010 +0000
committerKevin Wolf <kwolf@redhat.com>Wed Apr 13 12:06:41 2011 +0200
tree142793b8ae8e6fef8b1aa412cf39e2340091fdf9
parentd54f10bba7635b5ad8b750afd2bb2f0f8eb68b45 [diff]
qed: Add support for zero clusters

Zero clusters are similar to unallocated clusters except instead of reading
their value from a backing file when one is available, the cluster is always
read as zero.

This implements read support only.  At this stage, QED will never write a
zero cluster.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
4 files changed
tree: 142793b8ae8e6fef8b1aa412cf39e2340091fdf9
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. fsdev/
  9. gdb-xml/
  10. hw/
  11. libcacard/
  12. linux-user/
  13. net/
  14. pc-bios/
  15. QMP/
  16. roms/
  17. scripts/
  18. slirp/
  19. sysconfigs/
  20. target-alpha/
  21. target-arm/
  22. target-cris/
  23. target-i386/
  24. target-lm32/
  25. target-m68k/
  26. target-microblaze/
  27. target-mips/
  28. target-ppc/
  29. target-s390x/
  30. target-sh4/
  31. target-sparc/
  32. target-unicore32/
  33. tcg/
  34. tests/
  35. ui/
  36. .gitignore
  37. .gitmodules
  38. a.out.h
  39. acl.c
  40. acl.h
  41. aes.c
  42. aes.h
  43. aio.c
  44. alpha-dis.c
  45. alpha.ld
  46. arch_init.c
  47. arch_init.h
  48. arm-dis.c
  49. arm-semi.c
  50. arm.ld
  51. async.c
  52. balloon.c
  53. balloon.h
  54. bitmap.c
  55. bitmap.h
  56. bitops.c
  57. bitops.h
  58. block-migration.c
  59. block-migration.h
  60. block.c
  61. block.h
  62. block_int.h
  63. blockdev.c
  64. blockdev.h
  65. bswap.h
  66. bt-host.c
  67. bt-host.h
  68. bt-vhci.c
  69. buffered_file.c
  70. buffered_file.h
  71. cache-utils.c
  72. cache-utils.h
  73. Changelog
  74. check-qdict.c
  75. check-qfloat.c
  76. check-qint.c
  77. check-qjson.c
  78. check-qlist.c
  79. check-qstring.c
  80. cmd.c
  81. cmd.h
  82. CODING_STYLE
  83. compatfd.c
  84. compatfd.h
  85. config.h
  86. configure
  87. console.c
  88. console.h
  89. COPYING
  90. COPYING.LIB
  91. cpu-all.h
  92. cpu-common.h
  93. cpu-defs.h
  94. cpu-exec.c
  95. cpus.c
  96. cpus.h
  97. cris-dis.c
  98. cursor.c
  99. cursor_hidden.xpm
  100. cursor_left_ptr.xpm
  101. cutils.c
  102. def-helper.h
  103. device_tree.c
  104. device_tree.h
  105. dis-asm.h
  106. disas.c
  107. disas.h
  108. dma-helpers.c
  109. dma.h
  110. dyngen-exec.h
  111. elf.h
  112. envlist.c
  113. envlist.h
  114. exec-all.h
  115. exec.c
  116. gdbstub.c
  117. gdbstub.h
  118. gen-icount.h
  119. HACKING
  120. hmp-commands.hx
  121. host-utils.c
  122. host-utils.h
  123. hpet.h
  124. hppa-dis.c
  125. hppa.ld
  126. i386-dis.c
  127. i386.ld
  128. ia64-dis.c
  129. ia64.ld
  130. input.c
  131. iohandler.c
  132. ioport-user.c
  133. ioport.c
  134. ioport.h
  135. iorange.h
  136. iov.c
  137. iov.h
  138. json-lexer.c
  139. json-lexer.h
  140. json-parser.c
  141. json-parser.h
  142. json-streamer.c
  143. json-streamer.h
  144. kvm-all.c
  145. kvm-stub.c
  146. kvm.h
  147. libfdt_env.h
  148. LICENSE
  149. linux-aio.c
  150. m68k-dis.c
  151. m68k-semi.c
  152. m68k.ld
  153. MAINTAINERS
  154. Makefile
  155. Makefile.dis
  156. Makefile.hw
  157. Makefile.objs
  158. Makefile.target
  159. Makefile.user
  160. microblaze-dis.c
  161. migration-exec.c
  162. migration-fd.c
  163. migration-tcp.c
  164. migration-unix.c
  165. migration.c
  166. migration.h
  167. mips-dis.c
  168. mips.ld
  169. module.c
  170. module.h
  171. monitor.c
  172. monitor.h
  173. nbd.c
  174. nbd.h
  175. net.c
  176. net.h
  177. notify.c
  178. notify.h
  179. os-posix.c
  180. os-win32.c
  181. osdep.c
  182. osdep.h
  183. oslib-posix.c
  184. oslib-win32.c
  185. path.c
  186. pci-ids.txt
  187. pflib.c
  188. pflib.h
  189. poison.h
  190. posix-aio-compat.c
  191. ppc-dis.c
  192. ppc.ld
  193. ppc64.ld
  194. qbool.c
  195. qbool.h
  196. qdict-test-data.txt
  197. qdict.c
  198. qdict.h
  199. qemu-aio.h
  200. qemu-barrier.h
  201. qemu-char.c
  202. qemu-char.h
  203. qemu-common.h
  204. qemu-config.c
  205. qemu-config.h
  206. qemu-doc.texi
  207. qemu-error.c
  208. qemu-error.h
  209. qemu-img-cmds.hx
  210. qemu-img.c
  211. qemu-img.texi
  212. qemu-io.c
  213. qemu-lock.h
  214. qemu-log.h
  215. qemu-malloc.c
  216. qemu-nbd.c
  217. qemu-nbd.texi
  218. qemu-objects.h
  219. qemu-option.c
  220. qemu-option.h
  221. qemu-options.h
  222. qemu-options.hx
  223. qemu-os-posix.h
  224. qemu-os-win32.h
  225. qemu-progress.c
  226. qemu-queue.h
  227. qemu-sockets.c
  228. qemu-tech.texi
  229. qemu-thread-posix.c
  230. qemu-thread-posix.h
  231. qemu-thread-win32.c
  232. qemu-thread-win32.h
  233. qemu-thread.h
  234. qemu-timer-common.c
  235. qemu-timer.c
  236. qemu-timer.h
  237. qemu-tool.c
  238. qemu-x509.h
  239. qemu.sasl
  240. qemu_socket.h
  241. qerror.c
  242. qerror.h
  243. qfloat.c
  244. qfloat.h
  245. qint.c
  246. qint.h
  247. qjson.c
  248. qjson.h
  249. qlist.c
  250. qlist.h
  251. qmp-commands.hx
  252. qobject.h
  253. qstring.c
  254. qstring.h
  255. range.h
  256. readline.c
  257. readline.h
  258. README
  259. rules.mak
  260. rwhandler.c
  261. rwhandler.h
  262. s390-dis.c
  263. s390.ld
  264. savevm.c
  265. sh4-dis.c
  266. simpletrace.c
  267. simpletrace.h
  268. softmmu-semi.h
  269. softmmu_defs.h
  270. softmmu_exec.h
  271. softmmu_header.h
  272. softmmu_template.h
  273. sparc-dis.c
  274. sparc.ld
  275. sparc64.ld
  276. spice-qemu-char.c
  277. sysemu.h
  278. targphys.h
  279. tcg-runtime.c
  280. thunk.c
  281. thunk.h
  282. TODO
  283. trace-events
  284. translate-all.c
  285. uboot_image.h
  286. usb-bsd.c
  287. usb-linux.c
  288. usb-stub.c
  289. VERSION
  290. version.rc
  291. vgafont.h
  292. vl.c
  293. x86_64.ld