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qemu / qemu / 74d042e5cec78090194669a8a4417c0a49d46a3d
commit74d042e5cec78090194669a8a4417c0a49d46a3d[log] [tgz]
authorDavid Gibson <david@gibson.dropbear.id.au>Mon Oct 08 18:17:39 2012 +0000
committerAlexander Graf <agraf@suse.de>Mon Oct 29 11:45:54 2012 +0100
treee9d2a888f96dde333e160ea3b5a587634a12f2e6
parent1bfb37d1e077705de14f0f7fdc7b21749dbe4bc9 [diff]
pseries: Implement qemu initiated shutdowns using EPOW events

At present, using 'system_powerdown' from the monitor or otherwise
instructing qemu to (cleanly) shut down a pseries guest will not work,
because we did not have a method of signalling the shutdown request to the
guest.

PAPR does include a usable mechanism for this, though it is rather more
involved than the equivalent on x86.  This involves sending an EPOW
(Environmental and POwer Warning) event through the PAPR event and error
logging mechanism, which also has a number of other functions.

This patch implements just enough of the event/error logging functionality
to be able to send a shutdown event to the guest.  At least with modern
guest kernels and a userspace that is up and running, this means that
system_powerdown from the qemu monitor should now work correctly on pseries
guests.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
4 files changed
tree: e9d2a888f96dde333e160ea3b5a587634a12f2e6
  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-openrisc/
  33. target-ppc/
  34. target-s390x/
  35. target-sh4/
  36. target-sparc/
  37. target-unicore32/
  38. target-xtensa/
  39. tcg/
  40. tests/
  41. trace/
  42. ui/
  43. .exrc
  44. .gitignore
  45. .gitmodules
  46. .mailmap
  47. a.out.h
  48. acl.c
  49. acl.h
  50. aes.c
  51. aes.h
  52. aio.c
  53. alpha-dis.c
  54. alpha.ld
  55. arch_init.c
  56. arch_init.h
  57. arm-dis.c
  58. arm.ld
  59. async.c
  60. balloon.c
  61. balloon.h
  62. bitmap.c
  63. bitmap.h
  64. bitops.c
  65. bitops.h
  66. block-migration.c
  67. block-migration.h
  68. block.c
  69. block.h
  70. block_int.h
  71. blockdev-nbd.c
  72. blockdev.c
  73. blockdev.h
  74. blockjob.c
  75. blockjob.h
  76. bswap.h
  77. bt-host.c
  78. bt-host.h
  79. bt-vhci.c
  80. buffered_file.c
  81. buffered_file.h
  82. cache-utils.c
  83. cache-utils.h
  84. Changelog
  85. cmd.c
  86. cmd.h
  87. CODING_STYLE
  88. compatfd.c
  89. compatfd.h
  90. compiler.h
  91. config.h
  92. configure
  93. console.c
  94. console.h
  95. COPYING
  96. COPYING.LIB
  97. coroutine-gthread.c
  98. coroutine-sigaltstack.c
  99. coroutine-ucontext.c
  100. coroutine-win32.c
  101. cpu-all.h
  102. cpu-common.h
  103. cpu-defs.h
  104. cpu-exec.c
  105. cpus.c
  106. cpus.h
  107. cputlb.c
  108. cputlb.h
  109. cris-dis.c
  110. cursor.c
  111. cursor_hidden.xpm
  112. cursor_left_ptr.xpm
  113. cutils.c
  114. def-helper.h
  115. device_tree.c
  116. device_tree.h
  117. dis-asm.h
  118. disas.c
  119. disas.h
  120. dma-helpers.c
  121. dma.h
  122. dump-stub.c
  123. dump.c
  124. dump.h
  125. elf.h
  126. envlist.c
  127. envlist.h
  128. error.c
  129. error.h
  130. event_notifier.c
  131. event_notifier.h
  132. exec-all.h
  133. exec-memory.h
  134. exec.c
  135. gdbstub.c
  136. gdbstub.h
  137. gen-icount.h
  138. HACKING
  139. hmp-commands.hx
  140. hmp.c
  141. hmp.h
  142. host-utils.c
  143. host-utils.h
  144. hppa-dis.c
  145. hppa.ld
  146. hwaddr.h
  147. i386-dis.c
  148. i386.ld
  149. ia64-dis.c
  150. ia64.ld
  151. input.c
  152. int128.h
  153. iohandler.c
  154. ioport.c
  155. ioport.h
  156. iorange.h
  157. iov.c
  158. iov.h
  159. json-lexer.c
  160. json-lexer.h
  161. json-parser.c
  162. json-parser.h
  163. json-streamer.c
  164. json-streamer.h
  165. kvm-all.c
  166. kvm-stub.c
  167. kvm.h
  168. libfdt_env.h
  169. LICENSE
  170. linux-aio.c
  171. lm32-dis.c
  172. m68k-dis.c
  173. m68k.ld
  174. main-loop.c
  175. main-loop.h
  176. MAINTAINERS
  177. Makefile
  178. Makefile.dis
  179. Makefile.objs
  180. Makefile.target
  181. Makefile.user
  182. memory-internal.h
  183. memory.c
  184. memory.h
  185. memory_mapping-stub.c
  186. memory_mapping.c
  187. memory_mapping.h
  188. microblaze-dis.c
  189. migration-exec.c
  190. migration-fd.c
  191. migration-tcp.c
  192. migration-unix.c
  193. migration.c
  194. migration.h
  195. mips-dis.c
  196. mips.ld
  197. module.c
  198. module.h
  199. monitor.c
  200. monitor.h
  201. nbd.c
  202. nbd.h
  203. net.c
  204. net.h
  205. notify.c
  206. notify.h
  207. os-posix.c
  208. os-win32.c
  209. osdep.c
  210. osdep.h
  211. oslib-posix.c
  212. oslib-win32.c
  213. page_cache.c
  214. path.c
  215. pci-ids.txt
  216. pflib.c
  217. pflib.h
  218. poison.h
  219. posix-aio-compat.c
  220. ppc-dis.c
  221. ppc.ld
  222. ppc64.ld
  223. qapi-schema-guest.json
  224. qapi-schema-test.json
  225. qapi-schema.json
  226. qbool.c
  227. qbool.h
  228. qdict-test-data.txt
  229. qdict.c
  230. qdict.h
  231. qemu-aio.h
  232. qemu-barrier.h
  233. qemu-bridge-helper.c
  234. qemu-char.c
  235. qemu-char.h
  236. qemu-common.h
  237. qemu-config.c
  238. qemu-config.h
  239. qemu-coroutine-int.h
  240. qemu-coroutine-io.c
  241. qemu-coroutine-lock.c
  242. qemu-coroutine-sleep.c
  243. qemu-coroutine.c
  244. qemu-coroutine.h
  245. qemu-doc.texi
  246. qemu-error.c
  247. qemu-error.h
  248. qemu-file.h
  249. qemu-ga.c
  250. qemu-img-cmds.hx
  251. qemu-img.c
  252. qemu-img.texi
  253. qemu-io.c
  254. qemu-lock.h
  255. qemu-log.c
  256. qemu-log.h
  257. qemu-nbd.c
  258. qemu-nbd.texi
  259. qemu-objects.h
  260. qemu-option-internal.h
  261. qemu-option.c
  262. qemu-option.h
  263. qemu-options-wrapper.h
  264. qemu-options.h
  265. qemu-options.hx
  266. qemu-os-posix.h
  267. qemu-os-win32.h
  268. qemu-progress.c
  269. qemu-queue.h
  270. qemu-seccomp.c
  271. qemu-seccomp.h
  272. qemu-sockets.c
  273. qemu-tech.texi
  274. qemu-thread-posix.c
  275. qemu-thread-posix.h
  276. qemu-thread-win32.c
  277. qemu-thread-win32.h
  278. qemu-thread.h
  279. qemu-timer-common.c
  280. qemu-timer.c
  281. qemu-timer.h
  282. qemu-tls.h
  283. qemu-tool.c
  284. qemu-user.c
  285. qemu-x509.h
  286. qemu-xattr.h
  287. qemu.sasl
  288. qemu_socket.h
  289. qerror.c
  290. qerror.h
  291. qfloat.c
  292. qfloat.h
  293. qint.c
  294. qint.h
  295. qjson.c
  296. qjson.h
  297. qlist.c
  298. qlist.h
  299. qmp-commands.hx
  300. qmp.c
  301. qobject.h
  302. qstring.c
  303. qstring.h
  304. qtest.c
  305. qtest.h
  306. range.h
  307. readline.c
  308. readline.h
  309. README
  310. rules.mak
  311. s390-dis.c
  312. s390.ld
  313. savevm.c
  314. sh4-dis.c
  315. softmmu-semi.h
  316. softmmu_defs.h
  317. softmmu_exec.h
  318. softmmu_header.h
  319. softmmu_template.h
  320. sparc-dis.c
  321. sparc.ld
  322. sparc64.ld
  323. spice-qemu-char.c
  324. sysemu.h
  325. tcg-runtime.c
  326. tci-dis.c
  327. tci.c
  328. thunk.c
  329. thunk.h
  330. TODO
  331. trace-events
  332. translate-all.c
  333. uboot_image.h
  334. uri.c
  335. uri.h
  336. user-exec.c
  337. VERSION
  338. version.rc
  339. vgafont.h
  340. vl.c
  341. vmstate.h
  342. x86_64.ld
  343. xen-all.c
  344. xen-mapcache.c
  345. xen-mapcache.h
  346. xen-stub.c