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qemu / qemu / 427e3aa151c749225364d0c30640e2e3c1756d9d
commit427e3aa151c749225364d0c30640e2e3c1756d9d[log] [tgz]
authorHans de Goede <hdegoede@redhat.com>Sat Nov 17 12:47:18 2012 +0100
committerGerd Hoffmann <kraxel@redhat.com>Tue Dec 04 14:42:05 2012 +0100
treef9389374da549cbe7587ec0ca530344ed0cbf58c
parent8082624099bce56a3139e6b9f72016c00fd10227 [diff]
usb-tablet: Allow connecting to ehci

Our ehci code has is capable of significantly lowering the wakeup rate
for the hcd emulation while the device is idle. It is possible to add
similar code ot the uhci emulation, but that simply is not there atm,
and there is no reason why a (virtual) usb-tablet can not be a USB-2 device.

Making usb-hid devices connect to the emulated ehci controller instead
of the emulated uhci controller on vms which have both lowers the cpuload
for a fully idle vm from 20% to 2-3% (on my laptop).

An alternative implementation to using a property to select the tablet
type, would be simply making it a new device type, ie usb-tablet2, but the
downside of that is that this will require libvirt changes to be available
through libvirt at all, and then management tools changes to become the
default for new vms, where as using a property will automatically get
any pc-1.3 type vms the lower cpuload.

[ kraxel: adapt compat property for post-1.3 merge ]

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

tablet compat fixup

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 files changed
tree: f9389374da549cbe7587ec0ca530344ed0cbf58c
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. fsdev/
  9. gdb-xml/
  10. hw/
  11. include/
  12. libcacard/
  13. linux-headers/
  14. linux-user/
  15. net/
  16. pc-bios/
  17. qapi/
  18. qga/
  19. QMP/
  20. qom/
  21. roms/
  22. scripts/
  23. slirp/
  24. stubs/
  25. sysconfigs/
  26. target-alpha/
  27. target-arm/
  28. target-cris/
  29. target-i386/
  30. target-lm32/
  31. target-m68k/
  32. target-microblaze/
  33. target-mips/
  34. target-openrisc/
  35. target-ppc/
  36. target-s390x/
  37. target-sh4/
  38. target-sparc/
  39. target-unicore32/
  40. target-xtensa/
  41. tcg/
  42. tests/
  43. trace/
  44. ui/
  45. pixman
  46. .exrc
  47. .gitignore
  48. .gitmodules
  49. .mailmap
  50. a.out.h
  51. acl.c
  52. acl.h
  53. aes.c
  54. aes.h
  55. aio-posix.c
  56. aio-win32.c
  57. alpha-dis.c
  58. alpha.ld
  59. arch_init.c
  60. arch_init.h
  61. arm-dis.c
  62. arm.ld
  63. async.c
  64. balloon.c
  65. balloon.h
  66. bitmap.c
  67. bitmap.h
  68. bitops.c
  69. bitops.h
  70. block-migration.c
  71. block-migration.h
  72. block.c
  73. block.h
  74. block_int.h
  75. blockdev-nbd.c
  76. blockdev.c
  77. blockdev.h
  78. blockjob.c
  79. blockjob.h
  80. bswap.h
  81. bt-host.c
  82. bt-host.h
  83. bt-vhci.c
  84. buffered_file.c
  85. buffered_file.h
  86. cache-utils.c
  87. cache-utils.h
  88. Changelog
  89. cmd.c
  90. cmd.h
  91. CODING_STYLE
  92. compatfd.c
  93. compatfd.h
  94. compiler.h
  95. config.h
  96. configure
  97. console.c
  98. console.h
  99. COPYING
  100. COPYING.LIB
  101. coroutine-gthread.c
  102. coroutine-sigaltstack.c
  103. coroutine-ucontext.c
  104. coroutine-win32.c
  105. cpu-all.h
  106. cpu-common.h
  107. cpu-defs.h
  108. cpu-exec.c
  109. cpus.c
  110. cpus.h
  111. cputlb.c
  112. cputlb.h
  113. cris-dis.c
  114. cursor.c
  115. cursor_hidden.xpm
  116. cursor_left_ptr.xpm
  117. cutils.c
  118. def-helper.h
  119. device_tree.c
  120. device_tree.h
  121. dis-asm.h
  122. disas.c
  123. disas.h
  124. dma-helpers.c
  125. dma.h
  126. dump-stub.c
  127. dump.c
  128. dump.h
  129. elf.h
  130. envlist.c
  131. envlist.h
  132. error.c
  133. error.h
  134. event_notifier-posix.c
  135. event_notifier-win32.c
  136. event_notifier.h
  137. exec-all.h
  138. exec-memory.h
  139. exec.c
  140. gdbstub.c
  141. gdbstub.h
  142. gen-icount.h
  143. HACKING
  144. hmp-commands.hx
  145. hmp.c
  146. hmp.h
  147. host-utils.c
  148. host-utils.h
  149. hppa-dis.c
  150. hppa.ld
  151. hwaddr.h
  152. i386-dis.c
  153. i386.ld
  154. ia64-dis.c
  155. ia64.ld
  156. input.c
  157. int128.h
  158. iohandler.c
  159. ioport.c
  160. ioport.h
  161. iorange.h
  162. iov.c
  163. iov.h
  164. json-lexer.c
  165. json-lexer.h
  166. json-parser.c
  167. json-parser.h
  168. json-streamer.c
  169. json-streamer.h
  170. kvm-all.c
  171. kvm-stub.c
  172. kvm.h
  173. libfdt_env.h
  174. LICENSE
  175. lm32-dis.c
  176. m68k-dis.c
  177. m68k.ld
  178. main-loop.c
  179. main-loop.h
  180. MAINTAINERS
  181. Makefile
  182. Makefile.dis
  183. Makefile.objs
  184. Makefile.target
  185. Makefile.user
  186. memory-internal.h
  187. memory.c
  188. memory.h
  189. memory_mapping-stub.c
  190. memory_mapping.c
  191. memory_mapping.h
  192. microblaze-dis.c
  193. migration-exec.c
  194. migration-fd.c
  195. migration-tcp.c
  196. migration-unix.c
  197. migration.c
  198. migration.h
  199. mips-dis.c
  200. mips.ld
  201. module.c
  202. module.h
  203. monitor.c
  204. monitor.h
  205. nbd.c
  206. nbd.h
  207. net.c
  208. net.h
  209. notify.c
  210. notify.h
  211. os-posix.c
  212. os-win32.c
  213. osdep.c
  214. osdep.h
  215. oslib-posix.c
  216. oslib-win32.c
  217. page_cache.c
  218. path.c
  219. pci-ids.txt
  220. poison.h
  221. ppc-dis.c
  222. ppc.ld
  223. ppc64.ld
  224. qapi-schema-guest.json
  225. qapi-schema-test.json
  226. qapi-schema.json
  227. qbool.c
  228. qbool.h
  229. qdict-test-data.txt
  230. qdict.c
  231. qdict.h
  232. qemu-aio.h
  233. qemu-barrier.h
  234. qemu-bridge-helper.c
  235. qemu-char.c
  236. qemu-char.h
  237. qemu-common.h
  238. qemu-config.c
  239. qemu-config.h
  240. qemu-coroutine-int.h
  241. qemu-coroutine-io.c
  242. qemu-coroutine-lock.c
  243. qemu-coroutine-sleep.c
  244. qemu-coroutine.c
  245. qemu-coroutine.h
  246. qemu-doc.texi
  247. qemu-error.c
  248. qemu-error.h
  249. qemu-file.h
  250. qemu-ga.c
  251. qemu-img-cmds.hx
  252. qemu-img.c
  253. qemu-img.texi
  254. qemu-io.c
  255. qemu-lock.h
  256. qemu-log.c
  257. qemu-log.h
  258. qemu-nbd.c
  259. qemu-nbd.texi
  260. qemu-objects.h
  261. qemu-option-internal.h
  262. qemu-option.c
  263. qemu-option.h
  264. qemu-options-wrapper.h
  265. qemu-options.h
  266. qemu-options.hx
  267. qemu-os-posix.h
  268. qemu-os-win32.h
  269. qemu-pixman.c
  270. qemu-pixman.h
  271. qemu-progress.c
  272. qemu-queue.h
  273. qemu-seccomp.c
  274. qemu-seccomp.h
  275. qemu-sockets.c
  276. qemu-tech.texi
  277. qemu-thread-posix.c
  278. qemu-thread-posix.h
  279. qemu-thread-win32.c
  280. qemu-thread-win32.h
  281. qemu-thread.h
  282. qemu-timer-common.c
  283. qemu-timer.c
  284. qemu-timer.h
  285. qemu-tls.h
  286. qemu-tool.c
  287. qemu-user.c
  288. qemu-x509.h
  289. qemu-xattr.h
  290. qemu.sasl
  291. qemu_socket.h
  292. qerror.c
  293. qerror.h
  294. qfloat.c
  295. qfloat.h
  296. qint.c
  297. qint.h
  298. qjson.c
  299. qjson.h
  300. qlist.c
  301. qlist.h
  302. qmp-commands.hx
  303. qmp.c
  304. qobject.h
  305. qstring.c
  306. qstring.h
  307. qtest.c
  308. qtest.h
  309. range.h
  310. readline.c
  311. readline.h
  312. README
  313. rules.mak
  314. s390-dis.c
  315. s390.ld
  316. savevm.c
  317. sh4-dis.c
  318. softmmu-semi.h
  319. softmmu_defs.h
  320. softmmu_exec.h
  321. softmmu_header.h
  322. softmmu_template.h
  323. sparc-dis.c
  324. sparc.ld
  325. sparc64.ld
  326. spice-qemu-char.c
  327. sysemu.h
  328. tcg-runtime.c
  329. tci-dis.c
  330. tci.c
  331. thread-pool.c
  332. thread-pool.h
  333. thunk.c
  334. thunk.h
  335. TODO
  336. trace-events
  337. translate-all.c
  338. uboot_image.h
  339. uri.c
  340. uri.h
  341. user-exec.c
  342. VERSION
  343. version.rc
  344. vgafont.h
  345. vl.c
  346. vmstate.h
  347. x86_64.ld
  348. xen-all.c
  349. xen-mapcache.c
  350. xen-mapcache.h
  351. xen-stub.c