virtio-9p: fixed LE-to-host conversion bug when QEMU is called from guest

The 9p code already contains an attempt at the necessary endian
conversions, but it's broken.

The code which does conversion from host to guest does it correctly
and this code was copied to the function which does guest to host
conversion.  However the copied code hasn't been correctly updated, so
it first endian converts some garbage on the stack and then overwrites
it with a field from incoming packet without conversion.

The patch fixes the mistakes.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
1 file changed
tree: 3b6c94154cce64cb2c7a88748675befc80296ed4
  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. tcg/
  33. tests/
  34. ui/
  35. .gitignore
  36. .gitmodules
  37. a.out.h
  38. acl.c
  39. acl.h
  40. aes.c
  41. aes.h
  42. aio.c
  43. alpha-dis.c
  44. alpha.ld
  45. arch_init.c
  46. arch_init.h
  47. arm-dis.c
  48. arm-semi.c
  49. arm.ld
  50. async.c
  51. balloon.c
  52. balloon.h
  53. bitmap.c
  54. bitmap.h
  55. bitops.c
  56. bitops.h
  57. block-migration.c
  58. block-migration.h
  59. block.c
  60. block.h
  61. block_int.h
  62. blockdev.c
  63. blockdev.h
  64. bswap.h
  65. bt-host.c
  66. bt-host.h
  67. bt-vhci.c
  68. buffered_file.c
  69. buffered_file.h
  70. cache-utils.c
  71. cache-utils.h
  72. Changelog
  73. check-qdict.c
  74. check-qfloat.c
  75. check-qint.c
  76. check-qjson.c
  77. check-qlist.c
  78. check-qstring.c
  79. cmd.c
  80. cmd.h
  81. CODING_STYLE
  82. compatfd.c
  83. compatfd.h
  84. config.h
  85. configure
  86. console.c
  87. console.h
  88. COPYING
  89. COPYING.LIB
  90. cpu-all.h
  91. cpu-common.h
  92. cpu-defs.h
  93. cpu-exec.c
  94. cpus.c
  95. cpus.h
  96. cris-dis.c
  97. cursor.c
  98. cursor_hidden.xpm
  99. cursor_left_ptr.xpm
  100. cutils.c
  101. def-helper.h
  102. device_tree.c
  103. device_tree.h
  104. dis-asm.h
  105. disas.c
  106. disas.h
  107. dma-helpers.c
  108. dma.h
  109. dyngen-exec.h
  110. elf.h
  111. envlist.c
  112. envlist.h
  113. exec-all.h
  114. exec.c
  115. gdbstub.c
  116. gdbstub.h
  117. gen-icount.h
  118. HACKING
  119. hmp-commands.hx
  120. host-utils.c
  121. host-utils.h
  122. hpet.h
  123. hppa-dis.c
  124. hppa.ld
  125. i386-dis.c
  126. i386.ld
  127. ia64-dis.c
  128. ia64.ld
  129. input.c
  130. iohandler.c
  131. ioport-user.c
  132. ioport.c
  133. ioport.h
  134. iorange.h
  135. iov.c
  136. iov.h
  137. json-lexer.c
  138. json-lexer.h
  139. json-parser.c
  140. json-parser.h
  141. json-streamer.c
  142. json-streamer.h
  143. kvm-all.c
  144. kvm-stub.c
  145. kvm.h
  146. libfdt_env.h
  147. LICENSE
  148. linux-aio.c
  149. m68k-dis.c
  150. m68k-semi.c
  151. m68k.ld
  152. MAINTAINERS
  153. Makefile
  154. Makefile.dis
  155. Makefile.hw
  156. Makefile.objs
  157. Makefile.target
  158. Makefile.user
  159. microblaze-dis.c
  160. migration-exec.c
  161. migration-fd.c
  162. migration-tcp.c
  163. migration-unix.c
  164. migration.c
  165. migration.h
  166. mips-dis.c
  167. mips.ld
  168. module.c
  169. module.h
  170. monitor.c
  171. monitor.h
  172. nbd.c
  173. nbd.h
  174. net.c
  175. net.h
  176. notify.c
  177. notify.h
  178. os-posix.c
  179. os-win32.c
  180. osdep.c
  181. osdep.h
  182. oslib-posix.c
  183. oslib-win32.c
  184. path.c
  185. pci-ids.txt
  186. pflib.c
  187. pflib.h
  188. poison.h
  189. posix-aio-compat.c
  190. ppc-dis.c
  191. ppc.ld
  192. ppc64.ld
  193. qbool.c
  194. qbool.h
  195. qdict-test-data.txt
  196. qdict.c
  197. qdict.h
  198. qemu-aio.h
  199. qemu-barrier.h
  200. qemu-char.c
  201. qemu-char.h
  202. qemu-common.h
  203. qemu-config.c
  204. qemu-config.h
  205. qemu-doc.texi
  206. qemu-error.c
  207. qemu-error.h
  208. qemu-img-cmds.hx
  209. qemu-img.c
  210. qemu-img.texi
  211. qemu-io.c
  212. qemu-lock.h
  213. qemu-log.h
  214. qemu-malloc.c
  215. qemu-nbd.c
  216. qemu-nbd.texi
  217. qemu-objects.h
  218. qemu-option.c
  219. qemu-option.h
  220. qemu-options.h
  221. qemu-options.hx
  222. qemu-os-posix.h
  223. qemu-os-win32.h
  224. qemu-queue.h
  225. qemu-sockets.c
  226. qemu-tech.texi
  227. qemu-thread-posix.c
  228. qemu-thread-posix.h
  229. qemu-thread-win32.c
  230. qemu-thread-win32.h
  231. qemu-thread.h
  232. qemu-timer-common.c
  233. qemu-timer.c
  234. qemu-timer.h
  235. qemu-tool.c
  236. qemu-x509.h
  237. qemu.sasl
  238. qemu_socket.h
  239. qerror.c
  240. qerror.h
  241. qfloat.c
  242. qfloat.h
  243. qint.c
  244. qint.h
  245. qjson.c
  246. qjson.h
  247. qlist.c
  248. qlist.h
  249. qmp-commands.hx
  250. qobject.h
  251. qstring.c
  252. qstring.h
  253. range.h
  254. readline.c
  255. readline.h
  256. README
  257. rules.mak
  258. rwhandler.c
  259. rwhandler.h
  260. s390-dis.c
  261. s390.ld
  262. savevm.c
  263. sh4-dis.c
  264. simpletrace.c
  265. simpletrace.h
  266. softmmu-semi.h
  267. softmmu_defs.h
  268. softmmu_exec.h
  269. softmmu_header.h
  270. softmmu_template.h
  271. sparc-dis.c
  272. sparc.ld
  273. sparc64.ld
  274. spice-qemu-char.c
  275. sysemu.h
  276. targphys.h
  277. tcg-runtime.c
  278. thunk.c
  279. thunk.h
  280. TODO
  281. trace-events
  282. translate-all.c
  283. uboot_image.h
  284. usb-bsd.c
  285. usb-linux.c
  286. usb-stub.c
  287. VERSION
  288. version.rc
  289. vgafont.h
  290. vl.c
  291. x86_64.ld