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qemu / qemu / efcc7a23242dd0fa05932383cf35c068d16e6bbf
commitefcc7a23242dd0fa05932383cf35c068d16e6bbf[log] [tgz]
authorPaolo Bonzini <pbonzini@redhat.com>Tue May 08 16:51:58 2012 +0200
committerKevin Wolf <kwolf@redhat.com>Thu May 10 11:01:59 2012 +0200
treedf2f038701b076624b4192a8dc14ee1844ae7842
parentb21d677ee9efe431a4acc653a8cfb12650e44cec [diff]
stream: do not copy unallocated sectors from the base

Unallocated sectors should really never be accessed by the guest,
so there's no need to copy them during the streaming process.
If they are read by the guest during streaming, guest-initiated
copy-on-read will copy them (we're in the base == NULL case, which
enables copy on read).  If they are read after we disconnect the
image from the base, they will read as zeroes anyway.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 files changed
tree: df2f038701b076624b4192a8dc14ee1844ae7842
  1. audio/
  2. block/
  3. bsd-user/
  4. default-configs/
  5. docs/
  6. fpu/
  7. fsdev/
  8. gdb-xml/
  9. hw/
  10. include/
  11. libcacard/
  12. linux-headers/
  13. linux-user/
  14. net/
  15. pc-bios/
  16. qapi/
  17. qga/
  18. QMP/
  19. qom/
  20. roms/
  21. scripts/
  22. slirp/
  23. sysconfigs/
  24. target-alpha/
  25. target-arm/
  26. target-cris/
  27. target-i386/
  28. target-lm32/
  29. target-m68k/
  30. target-microblaze/
  31. target-mips/
  32. target-ppc/
  33. target-s390x/
  34. target-sh4/
  35. target-sparc/
  36. target-unicore32/
  37. target-xtensa/
  38. tcg/
  39. tests/
  40. trace/
  41. ui/
  42. .gitignore
  43. .gitmodules
  44. .mailmap
  45. a.out.h
  46. acl.c
  47. acl.h
  48. aes.c
  49. aes.h
  50. aio.c
  51. alpha-dis.c
  52. alpha.ld
  53. arch_init.c
  54. arch_init.h
  55. arm-dis.c
  56. arm-semi.c
  57. arm.ld
  58. async.c
  59. balloon.c
  60. balloon.h
  61. bitmap.c
  62. bitmap.h
  63. bitops.c
  64. bitops.h
  65. block-migration.c
  66. block-migration.h
  67. block.c
  68. block.h
  69. block_int.h
  70. blockdev.c
  71. blockdev.h
  72. bswap.h
  73. bt-host.c
  74. bt-host.h
  75. bt-vhci.c
  76. buffered_file.c
  77. buffered_file.h
  78. cache-utils.c
  79. cache-utils.h
  80. Changelog
  81. cmd.c
  82. cmd.h
  83. CODING_STYLE
  84. compatfd.c
  85. compatfd.h
  86. compiler.h
  87. config.h
  88. configure
  89. console.c
  90. console.h
  91. COPYING
  92. COPYING.LIB
  93. coroutine-gthread.c
  94. coroutine-sigaltstack.c
  95. coroutine-ucontext.c
  96. coroutine-win32.c
  97. cpu-all.h
  98. cpu-common.h
  99. cpu-defs.h
  100. cpu-exec.c
  101. cpus.c
  102. cpus.h
  103. cputlb.c
  104. cputlb.h
  105. cris-dis.c
  106. cursor.c
  107. cursor_hidden.xpm
  108. cursor_left_ptr.xpm
  109. cutils.c
  110. def-helper.h
  111. device_tree.c
  112. device_tree.h
  113. dis-asm.h
  114. disas.c
  115. disas.h
  116. dma-helpers.c
  117. dma.h
  118. dyngen-exec.h
  119. elf.h
  120. envlist.c
  121. envlist.h
  122. error.c
  123. error.h
  124. error_int.h
  125. event_notifier.c
  126. event_notifier.h
  127. exec-all.h
  128. exec-memory.h
  129. exec-obsolete.h
  130. exec.c
  131. gdbstub.c
  132. gdbstub.h
  133. gen-icount.h
  134. HACKING
  135. hmp-commands.hx
  136. hmp.c
  137. hmp.h
  138. host-utils.c
  139. host-utils.h
  140. hppa-dis.c
  141. hppa.ld
  142. i386-dis.c
  143. i386.ld
  144. ia64-dis.c
  145. ia64.ld
  146. input.c
  147. int128.h
  148. iohandler.c
  149. ioport-user.c
  150. ioport.c
  151. ioport.h
  152. iorange.h
  153. iov.c
  154. iov.h
  155. json-lexer.c
  156. json-lexer.h
  157. json-parser.c
  158. json-parser.h
  159. json-streamer.c
  160. json-streamer.h
  161. kvm-all.c
  162. kvm-stub.c
  163. kvm.h
  164. libfdt_env.h
  165. LICENSE
  166. linux-aio.c
  167. lm32-dis.c
  168. m68k-dis.c
  169. m68k-semi.c
  170. m68k.ld
  171. main-loop.c
  172. main-loop.h
  173. MAINTAINERS
  174. Makefile
  175. Makefile.dis
  176. Makefile.hw
  177. Makefile.objs
  178. Makefile.target
  179. Makefile.user
  180. memory.c
  181. memory.h
  182. microblaze-dis.c
  183. migration-exec.c
  184. migration-fd.c
  185. migration-tcp.c
  186. migration-unix.c
  187. migration.c
  188. migration.h
  189. mips-dis.c
  190. mips.ld
  191. module.c
  192. module.h
  193. monitor.c
  194. monitor.h
  195. nbd.c
  196. nbd.h
  197. net.c
  198. net.h
  199. notify.c
  200. notify.h
  201. os-posix.c
  202. os-win32.c
  203. osdep.c
  204. osdep.h
  205. oslib-posix.c
  206. oslib-win32.c
  207. path.c
  208. pci-ids.txt
  209. pflib.c
  210. pflib.h
  211. poison.h
  212. posix-aio-compat.c
  213. ppc-dis.c
  214. ppc.ld
  215. ppc64.ld
  216. qapi-schema-guest.json
  217. qapi-schema-test.json
  218. qapi-schema.json
  219. qbool.c
  220. qbool.h
  221. qdict-test-data.txt
  222. qdict.c
  223. qdict.h
  224. qemu-aio.h
  225. qemu-barrier.h
  226. qemu-bridge-helper.c
  227. qemu-char.c
  228. qemu-char.h
  229. qemu-common.h
  230. qemu-config.c
  231. qemu-config.h
  232. qemu-coroutine-int.h
  233. qemu-coroutine-io.c
  234. qemu-coroutine-lock.c
  235. qemu-coroutine-sleep.c
  236. qemu-coroutine.c
  237. qemu-coroutine.h
  238. qemu-doc.texi
  239. qemu-error.c
  240. qemu-error.h
  241. qemu-file.h
  242. qemu-ga.c
  243. qemu-img-cmds.hx
  244. qemu-img.c
  245. qemu-img.texi
  246. qemu-io.c
  247. qemu-lock.h
  248. qemu-log.h
  249. qemu-nbd.c
  250. qemu-nbd.texi
  251. qemu-objects.h
  252. qemu-option.c
  253. qemu-option.h
  254. qemu-options-wrapper.h
  255. qemu-options.h
  256. qemu-options.hx
  257. qemu-os-posix.h
  258. qemu-os-win32.h
  259. qemu-progress.c
  260. qemu-queue.h
  261. qemu-sockets.c
  262. qemu-tech.texi
  263. qemu-thread-posix.c
  264. qemu-thread-posix.h
  265. qemu-thread-win32.c
  266. qemu-thread-win32.h
  267. qemu-thread.h
  268. qemu-timer-common.c
  269. qemu-timer.c
  270. qemu-timer.h
  271. qemu-tls.h
  272. qemu-tool.c
  273. qemu-user.c
  274. qemu-x509.h
  275. qemu-xattr.h
  276. qemu.sasl
  277. qemu_socket.h
  278. qerror.c
  279. qerror.h
  280. qfloat.c
  281. qfloat.h
  282. qint.c
  283. qint.h
  284. qjson.c
  285. qjson.h
  286. qlist.c
  287. qlist.h
  288. qmp-commands.hx
  289. qmp.c
  290. qobject.h
  291. qstring.c
  292. qstring.h
  293. qtest.c
  294. qtest.h
  295. range.h
  296. readline.c
  297. readline.h
  298. README
  299. rules.mak
  300. s390-dis.c
  301. s390.ld
  302. savevm.c
  303. sh4-dis.c
  304. softmmu-semi.h
  305. softmmu_defs.h
  306. softmmu_exec.h
  307. softmmu_header.h
  308. softmmu_template.h
  309. sparc-dis.c
  310. sparc.ld
  311. sparc64.ld
  312. spice-qemu-char.c
  313. sysemu.h
  314. targphys.h
  315. tcg-runtime.c
  316. tci-dis.c
  317. tci.c
  318. thunk.c
  319. thunk.h
  320. TODO
  321. trace-events
  322. translate-all.c
  323. uboot_image.h
  324. user-exec.c
  325. VERSION
  326. version.rc
  327. vgafont.h
  328. vl.c
  329. vmstate.h
  330. x86_64.ld
  331. xen-all.c
  332. xen-mapcache.c
  333. xen-mapcache.h
  334. xen-stub.c
  335. xtensa-semi.c