ide save/restore current transfer fields

If migration takes place between write of the bmdma address register and
write of the command register (to initiate DMA), the destination will
not properly start the DMA op, hanging the guest:

ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: cmd c8/00:16:41:00:00/00:00:00:00:00/e0 tag 0 dma 11264 in
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }

Fix by sending current transfer information in the migration data.

We need to update ide version to 4 for this to work.  As we don't
have subsectios, we need to chain the update increase until
vmstate_ide_pci (quintela)

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
1 file changed
tree: d58c91e6d6e75bf9006cd45923603503416d5fbd
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. gdb-xml/
  9. hw/
  10. linux-user/
  11. net/
  12. pc-bios/
  13. QMP/
  14. roms/
  15. slirp/
  16. target-alpha/
  17. target-arm/
  18. target-cris/
  19. target-i386/
  20. target-m68k/
  21. target-microblaze/
  22. target-mips/
  23. target-ppc/
  24. target-s390x/
  25. target-sh4/
  26. target-sparc/
  27. tcg/
  28. tests/
  29. .gitignore
  30. .gitmodules
  31. a.out.h
  32. acl.c
  33. acl.h
  34. aes.c
  35. aes.h
  36. aio.c
  37. alpha-dis.c
  38. alpha.ld
  39. arm-dis.c
  40. arm-semi.c
  41. arm.ld
  42. async.c
  43. balloon.h
  44. block-migration.c
  45. block-migration.h
  46. block.c
  47. block.h
  48. block_int.h
  49. bswap.h
  50. bt-host.c
  51. bt-host.h
  52. bt-vhci.c
  53. buffered_file.c
  54. buffered_file.h
  55. cache-utils.c
  56. cache-utils.h
  57. Changelog
  58. check-qdict.c
  59. check-qfloat.c
  60. check-qint.c
  61. check-qjson.c
  62. check-qlist.c
  63. check-qstring.c
  64. cmd.c
  65. cmd.h
  66. cocoa.m
  67. CODING_STYLE
  68. config.h
  69. configure
  70. console.c
  71. console.h
  72. COPYING
  73. COPYING.LIB
  74. cpu-all.h
  75. cpu-common.h
  76. cpu-defs.h
  77. cpu-exec.c
  78. create_config
  79. cris-dis.c
  80. curses.c
  81. curses_keys.h
  82. cutils.c
  83. d3des.c
  84. d3des.h
  85. def-helper.h
  86. device_tree.c
  87. device_tree.h
  88. dis-asm.h
  89. disas.c
  90. disas.h
  91. dma-helpers.c
  92. dma.h
  93. dyngen-exec.h
  94. elf.h
  95. envlist.c
  96. envlist.h
  97. exec-all.h
  98. exec.c
  99. feature_to_c.sh
  100. gdbstub.c
  101. gdbstub.h
  102. gen-icount.h
  103. host-utils.c
  104. host-utils.h
  105. hostregs_helper.h
  106. hpet.h
  107. hppa-dis.c
  108. hppa.ld
  109. hxtool
  110. i386-dis.c
  111. i386.ld
  112. ia64.ld
  113. input.c
  114. ioport-user.c
  115. ioport.c
  116. ioport.h
  117. json-lexer.c
  118. json-lexer.h
  119. json-parser.c
  120. json-parser.h
  121. json-streamer.c
  122. json-streamer.h
  123. keymaps.c
  124. keymaps.h
  125. kvm-all.c
  126. kvm.h
  127. libfdt_env.h
  128. LICENSE
  129. linux-aio.c
  130. m68k-dis.c
  131. m68k-semi.c
  132. m68k.ld
  133. MAINTAINERS
  134. Makefile
  135. Makefile.hw
  136. Makefile.objs
  137. Makefile.target
  138. Makefile.user
  139. microblaze-dis.c
  140. migration-exec.c
  141. migration-fd.c
  142. migration-tcp.c
  143. migration-unix.c
  144. migration.c
  145. migration.h
  146. mips-dis.c
  147. mips.ld
  148. module.c
  149. module.h
  150. monitor.c
  151. monitor.h
  152. nbd.c
  153. nbd.h
  154. net-checksum.c
  155. net.c
  156. net.h
  157. osdep.c
  158. osdep.h
  159. path.c
  160. pci-ids.txt
  161. posix-aio-compat.c
  162. ppc-dis.c
  163. ppc.ld
  164. ppc64.ld
  165. qbool.c
  166. qbool.h
  167. qdict-test-data.txt
  168. qdict.c
  169. qdict.h
  170. qemu-aio.h
  171. qemu-binfmt-conf.sh
  172. qemu-char.c
  173. qemu-char.h
  174. qemu-common.h
  175. qemu-config.c
  176. qemu-config.h
  177. qemu-doc.texi
  178. qemu-img-cmds.hx
  179. qemu-img.c
  180. qemu-img.texi
  181. qemu-io.c
  182. qemu-lock.h
  183. qemu-log.h
  184. qemu-malloc.c
  185. qemu-monitor.hx
  186. qemu-nbd.c
  187. qemu-nbd.texi
  188. qemu-objects.h
  189. qemu-option.c
  190. qemu-option.h
  191. qemu-options.hx
  192. qemu-queue.h
  193. qemu-sockets.c
  194. qemu-tech.texi
  195. qemu-thread.c
  196. qemu-thread.h
  197. qemu-timer.h
  198. qemu-tool.c
  199. qemu.sasl
  200. qemu_socket.h
  201. qerror.c
  202. qerror.h
  203. qfloat.c
  204. qfloat.h
  205. qint.c
  206. qint.h
  207. qjson.c
  208. qjson.h
  209. qlist.c
  210. qlist.h
  211. qobject.h
  212. qstring.c
  213. qstring.h
  214. readline.c
  215. readline.h
  216. README
  217. rules.mak
  218. s390-dis.c
  219. s390.ld
  220. savevm.c
  221. sdl.c
  222. sdl_keysym.h
  223. sdl_zoom.c
  224. sdl_zoom.h
  225. sdl_zoom_template.h
  226. sh4-dis.c
  227. softmmu-semi.h
  228. softmmu_defs.h
  229. softmmu_exec.h
  230. softmmu_header.h
  231. softmmu_template.h
  232. sparc-dis.c
  233. sparc.ld
  234. sparc64.ld
  235. sysemu.h
  236. targphys.h
  237. tcg-runtime.c
  238. texi2pod.pl
  239. thunk.c
  240. thunk.h
  241. TODO
  242. translate-all.c
  243. uboot_image.h
  244. usb-bsd.c
  245. usb-linux.c
  246. usb-stub.c
  247. VERSION
  248. vgafont.h
  249. vl.c
  250. vnc-auth-sasl.c
  251. vnc-auth-sasl.h
  252. vnc-auth-vencrypt.c
  253. vnc-auth-vencrypt.h
  254. vnc-tls.c
  255. vnc-tls.h
  256. vnc.c
  257. vnc.h
  258. vnc_keysym.h
  259. vnchextile.h
  260. x86_64.ld
  261. x_keymap.c
  262. x_keymap.h