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qemu-android / qemu-android / e1d1e5867d0bd54c4fc51ec2cddc701258314db0
commite1d1e5867d0bd54c4fc51ec2cddc701258314db0[log] [tgz]
authorAlex Williamson <alex.williamson@redhat.com>Tue Nov 13 12:27:40 2012 -0700
committerAlex Williamson <alex.williamson@redhat.com>Tue Nov 13 12:27:40 2012 -0700
tree159459c9b4c3773e231e73491338b1492a7073af
parent716b8e4dd2f7a1674bf77d49fd50139cb577e70f [diff]
vfio-pci: Add KVM INTx acceleration

This makes use of the new level irqfd support enabling bypass of qemu
userspace both on INTx injection and unmask.  This significantly
boosts the performance of devices making use of legacy interrupts (ex.
~60% better netperf TCP_RR scores for an e1000e assigned to a Linux
guest and booted with pci=nomsi).  This also avoids flipping mmaps on
and off to simulate EOIs, so greatly improves performance of device
access in addition to interrupt latency.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
1 file changed
tree: 159459c9b4c3773e231e73491338b1492a7073af
  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. pixman
  44. .exrc
  45. .gitignore
  46. .gitmodules
  47. .mailmap
  48. a.out.h
  49. acl.c
  50. acl.h
  51. aes.c
  52. aes.h
  53. aio-posix.c
  54. aio-win32.c
  55. alpha-dis.c
  56. alpha.ld
  57. arch_init.c
  58. arch_init.h
  59. arm-dis.c
  60. arm.ld
  61. async.c
  62. balloon.c
  63. balloon.h
  64. bitmap.c
  65. bitmap.h
  66. bitops.c
  67. bitops.h
  68. block-migration.c
  69. block-migration.h
  70. block.c
  71. block.h
  72. block_int.h
  73. blockdev-nbd.c
  74. blockdev.c
  75. blockdev.h
  76. blockjob.c
  77. blockjob.h
  78. bswap.h
  79. bt-host.c
  80. bt-host.h
  81. bt-vhci.c
  82. buffered_file.c
  83. buffered_file.h
  84. cache-utils.c
  85. cache-utils.h
  86. Changelog
  87. cmd.c
  88. cmd.h
  89. CODING_STYLE
  90. compatfd.c
  91. compatfd.h
  92. compiler.h
  93. config.h
  94. configure
  95. console.c
  96. console.h
  97. COPYING
  98. COPYING.LIB
  99. coroutine-gthread.c
  100. coroutine-sigaltstack.c
  101. coroutine-ucontext.c
  102. coroutine-win32.c
  103. cpu-all.h
  104. cpu-common.h
  105. cpu-defs.h
  106. cpu-exec.c
  107. cpus.c
  108. cpus.h
  109. cputlb.c
  110. cputlb.h
  111. cris-dis.c
  112. cursor.c
  113. cursor_hidden.xpm
  114. cursor_left_ptr.xpm
  115. cutils.c
  116. def-helper.h
  117. device_tree.c
  118. device_tree.h
  119. dis-asm.h
  120. disas.c
  121. disas.h
  122. dma-helpers.c
  123. dma.h
  124. dump-stub.c
  125. dump.c
  126. dump.h
  127. elf.h
  128. envlist.c
  129. envlist.h
  130. error.c
  131. error.h
  132. event_notifier-posix.c
  133. event_notifier-win32.c
  134. event_notifier.h
  135. exec-all.h
  136. exec-memory.h
  137. exec.c
  138. gdbstub.c
  139. gdbstub.h
  140. gen-icount.h
  141. HACKING
  142. hmp-commands.hx
  143. hmp.c
  144. hmp.h
  145. host-utils.c
  146. host-utils.h
  147. hppa-dis.c
  148. hppa.ld
  149. hwaddr.h
  150. i386-dis.c
  151. i386.ld
  152. ia64-dis.c
  153. ia64.ld
  154. input.c
  155. int128.h
  156. iohandler.c
  157. ioport.c
  158. ioport.h
  159. iorange.h
  160. iov.c
  161. iov.h
  162. json-lexer.c
  163. json-lexer.h
  164. json-parser.c
  165. json-parser.h
  166. json-streamer.c
  167. json-streamer.h
  168. kvm-all.c
  169. kvm-stub.c
  170. kvm.h
  171. libfdt_env.h
  172. LICENSE
  173. lm32-dis.c
  174. m68k-dis.c
  175. m68k.ld
  176. main-loop.c
  177. main-loop.h
  178. MAINTAINERS
  179. Makefile
  180. Makefile.dis
  181. Makefile.objs
  182. Makefile.target
  183. Makefile.user
  184. memory-internal.h
  185. memory.c
  186. memory.h
  187. memory_mapping-stub.c
  188. memory_mapping.c
  189. memory_mapping.h
  190. microblaze-dis.c
  191. migration-exec.c
  192. migration-fd.c
  193. migration-tcp.c
  194. migration-unix.c
  195. migration.c
  196. migration.h
  197. mips-dis.c
  198. mips.ld
  199. module.c
  200. module.h
  201. monitor.c
  202. monitor.h
  203. nbd.c
  204. nbd.h
  205. net.c
  206. net.h
  207. notify.c
  208. notify.h
  209. os-posix.c
  210. os-win32.c
  211. osdep.c
  212. osdep.h
  213. oslib-posix.c
  214. oslib-win32.c
  215. page_cache.c
  216. path.c
  217. pci-ids.txt
  218. pflib.c
  219. pflib.h
  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