KVM: PPC: Override host vmx/vsx/dfp only when information known

The -cpu host feature tries to find out the host capabilities based
on device tree information. However, we don't always have that available
because it's an optional property in dt.

So instead of force unsetting values depending on an unreliable source
of information, let's just try to be clever about it and not override
capabilities when we don't know the device tree pieces.

This fixes altivec with -cpu host on YDL PowerStations.

Reported-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
1 file changed
tree: d8d59f592f44fe43841913927083226fc1ff26f7
  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-headers/
  13. linux-user/
  14. net/
  15. pc-bios/
  16. qapi/
  17. qga/
  18. QMP/
  19. roms/
  20. scripts/
  21. slirp/
  22. sysconfigs/
  23. target-alpha/
  24. target-arm/
  25. target-cris/
  26. target-i386/
  27. target-lm32/
  28. target-m68k/
  29. target-microblaze/
  30. target-mips/
  31. target-ppc/
  32. target-s390x/
  33. target-sh4/
  34. target-sparc/
  35. target-unicore32/
  36. target-xtensa/
  37. tcg/
  38. tests/
  39. trace/
  40. ui/
  41. .gitignore
  42. .gitmodules
  43. a.out.h
  44. acl.c
  45. acl.h
  46. aes.c
  47. aes.h
  48. aio.c
  49. alpha-dis.c
  50. alpha.ld
  51. arch_init.c
  52. arch_init.h
  53. arm-dis.c
  54. arm-semi.c
  55. arm.ld
  56. async.c
  57. balloon.c
  58. balloon.h
  59. bitmap.c
  60. bitmap.h
  61. bitops.c
  62. bitops.h
  63. block-migration.c
  64. block-migration.h
  65. block.c
  66. block.h
  67. block_int.h
  68. blockdev.c
  69. blockdev.h
  70. bswap.h
  71. bt-host.c
  72. bt-host.h
  73. bt-vhci.c
  74. buffered_file.c
  75. buffered_file.h
  76. cache-utils.c
  77. cache-utils.h
  78. Changelog
  79. check-qdict.c
  80. check-qfloat.c
  81. check-qint.c
  82. check-qjson.c
  83. check-qlist.c
  84. check-qstring.c
  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-ucontext.c
  99. coroutine-win32.c
  100. cpu-all.h
  101. cpu-common.h
  102. cpu-defs.h
  103. cpu-exec.c
  104. cpus.c
  105. cpus.h
  106. cris-dis.c
  107. cursor.c
  108. cursor_hidden.xpm
  109. cursor_left_ptr.xpm
  110. cutils.c
  111. def-helper.h
  112. device_tree.c
  113. device_tree.h
  114. dis-asm.h
  115. disas.c
  116. disas.h
  117. dma-helpers.c
  118. dma.h
  119. dyngen-exec.h
  120. elf.h
  121. envlist.c
  122. envlist.h
  123. error.c
  124. error.h
  125. error_int.h
  126. exec-all.h
  127. exec-memory.h
  128. exec.c
  129. gdbstub.c
  130. gdbstub.h
  131. gen-icount.h
  132. HACKING
  133. hmp-commands.hx
  134. hmp.c
  135. hmp.h
  136. host-utils.c
  137. host-utils.h
  138. hppa-dis.c
  139. hppa.ld
  140. i386-dis.c
  141. i386.ld
  142. ia64-dis.c
  143. ia64.ld
  144. input.c
  145. iohandler.c
  146. ioport-user.c
  147. ioport.c
  148. ioport.h
  149. iorange.h
  150. iov.c
  151. iov.h
  152. json-lexer.c
  153. json-lexer.h
  154. json-parser.c
  155. json-parser.h
  156. json-streamer.c
  157. json-streamer.h
  158. kvm-all.c
  159. kvm-stub.c
  160. kvm.h
  161. libfdt_env.h
  162. LICENSE
  163. linux-aio.c
  164. m68k-dis.c
  165. m68k-semi.c
  166. m68k.ld
  167. main-loop.c
  168. main-loop.h
  169. MAINTAINERS
  170. Makefile
  171. Makefile.dis
  172. Makefile.hw
  173. Makefile.objs
  174. Makefile.target
  175. Makefile.user
  176. memory.c
  177. memory.h
  178. microblaze-dis.c
  179. migration-exec.c
  180. migration-fd.c
  181. migration-tcp.c
  182. migration-unix.c
  183. migration.c
  184. migration.h
  185. mips-dis.c
  186. mips.ld
  187. module.c
  188. module.h
  189. monitor.c
  190. monitor.h
  191. nbd.c
  192. nbd.h
  193. net.c
  194. net.h
  195. notify.c
  196. notify.h
  197. os-posix.c
  198. os-win32.c
  199. osdep.c
  200. osdep.h
  201. oslib-posix.c
  202. oslib-win32.c
  203. path.c
  204. pci-ids.txt
  205. pflib.c
  206. pflib.h
  207. poison.h
  208. posix-aio-compat.c
  209. ppc-dis.c
  210. ppc.ld
  211. ppc64.ld
  212. qapi-schema-guest.json
  213. qapi-schema-test.json
  214. qapi-schema.json
  215. qbool.c
  216. qbool.h
  217. qdict-test-data.txt
  218. qdict.c
  219. qdict.h
  220. qemu-aio.h
  221. qemu-barrier.h
  222. qemu-char.c
  223. qemu-char.h
  224. qemu-common.h
  225. qemu-config.c
  226. qemu-config.h
  227. qemu-coroutine-int.h
  228. qemu-coroutine-lock.c
  229. qemu-coroutine.c
  230. qemu-coroutine.h
  231. qemu-doc.texi
  232. qemu-error.c
  233. qemu-error.h
  234. qemu-ga.c
  235. qemu-img-cmds.hx
  236. qemu-img.c
  237. qemu-img.texi
  238. qemu-io.c
  239. qemu-lock.h
  240. qemu-log.h
  241. qemu-nbd.c
  242. qemu-nbd.texi
  243. qemu-objects.h
  244. qemu-option.c
  245. qemu-option.h
  246. qemu-options.h
  247. qemu-options.hx
  248. qemu-os-posix.h
  249. qemu-os-win32.h
  250. qemu-progress.c
  251. qemu-queue.h
  252. qemu-sockets.c
  253. qemu-tech.texi
  254. qemu-thread-posix.c
  255. qemu-thread-posix.h
  256. qemu-thread-win32.c
  257. qemu-thread-win32.h
  258. qemu-thread.h
  259. qemu-timer-common.c
  260. qemu-timer.c
  261. qemu-timer.h
  262. qemu-tool.c
  263. qemu-x509.h
  264. qemu.sasl
  265. qemu_socket.h
  266. qerror.c
  267. qerror.h
  268. qfloat.c
  269. qfloat.h
  270. qint.c
  271. qint.h
  272. qjson.c
  273. qjson.h
  274. qlist.c
  275. qlist.h
  276. qmp-commands.hx
  277. qmp.c
  278. qobject.h
  279. qstring.c
  280. qstring.h
  281. range.h
  282. readline.c
  283. readline.h
  284. README
  285. rules.mak
  286. s390-dis.c
  287. s390.ld
  288. savevm.c
  289. sh4-dis.c
  290. softmmu-semi.h
  291. softmmu_defs.h
  292. softmmu_exec.h
  293. softmmu_header.h
  294. softmmu_template.h
  295. sparc-dis.c
  296. sparc.ld
  297. sparc64.ld
  298. spice-qemu-char.c
  299. sysemu.h
  300. targphys.h
  301. tcg-runtime.c
  302. test-coroutine.c
  303. test-qmp-commands.c
  304. test-visitor.c
  305. thunk.c
  306. thunk.h
  307. TODO
  308. trace-events
  309. translate-all.c
  310. uboot_image.h
  311. usb-bsd.c
  312. usb-linux.c
  313. usb-redir.c
  314. usb-stub.c
  315. user-exec.c
  316. VERSION
  317. version.rc
  318. vgafont.h
  319. vl.c
  320. x86_64.ld
  321. xen-all.c
  322. xen-mapcache.c
  323. xen-mapcache.h
  324. xen-stub.c
  325. xtensa-semi.c