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qemu-android/qemu-android/e87c099f1c9e461dcaa093b1b40b14e7e899e70f
commit
e87c099f1c9e461dcaa093b1b40b14e7e899e70f
[log]
author
Avi Kivity <avi@redhat.com>
Wed Sep 14 12:16:20 2011 +0300
committer
Avi Kivity <avi@redhat.com>
Mon Dec 05 12:04:09 2011 +0200
tree
24486d10a71baa1baec5c50c3838ab7f29868867
parent
4703359e0eeb27c382fdf2951b842cf8bde26672 [diff]
memory: optimize empty transactions due to mutators

The mutating memory APIs can easily cause empty transactions,
where the mutators don't actually change anything, or perhaps
only modify disabled regions.  Detect these conditions and
avoid regenerating the memory topology.

Signed-off-by: Avi Kivity <avi@redhat.com>
1 file changed
tree: 24486d10a71baa1baec5c50c3838ab7f29868867
  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. event_notifier.c
  127. event_notifier.h
  128. exec-all.h
  129. exec-memory.h
  130. exec.c
  131. gdbstub.c
  132. gdbstub.h
  133. gen-icount.h
  134. HACKING
  135. hmp-commands.hx
  136. hmp.c
  137. hmp.h
  138. host-utils.c
  139. host-utils.h
  140. hppa-dis.c
  141. hppa.ld
  142. i386-dis.c
  143. i386.ld
  144. ia64-dis.c
  145. ia64.ld
  146. input.c
  147. int128.h
  148. iohandler.c
  149. ioport-user.c
  150. ioport.c
  151. ioport.h
  152. iorange.h
  153. iov.c
  154. iov.h
  155. json-lexer.c
  156. json-lexer.h
  157. json-parser.c
  158. json-parser.h
  159. json-streamer.c
  160. json-streamer.h
  161. kvm-all.c
  162. kvm-stub.c
  163. kvm.h
  164. libfdt_env.h
  165. LICENSE
  166. linux-aio.c
  167. m68k-dis.c
  168. m68k-semi.c
  169. m68k.ld
  170. main-loop.c
  171. main-loop.h
  172. MAINTAINERS
  173. Makefile
  174. Makefile.dis
  175. Makefile.hw
  176. Makefile.objs
  177. Makefile.target
  178. Makefile.user
  179. memory.c
  180. memory.h
  181. microblaze-dis.c
  182. migration-exec.c
  183. migration-fd.c
  184. migration-tcp.c
  185. migration-unix.c
  186. migration.c
  187. migration.h
  188. mips-dis.c
  189. mips.ld
  190. module.c
  191. module.h
  192. monitor.c
  193. monitor.h
  194. nbd.c
  195. nbd.h
  196. net.c
  197. net.h
  198. notify.c
  199. notify.h
  200. os-posix.c
  201. os-win32.c
  202. osdep.c
  203. osdep.h
  204. oslib-posix.c
  205. oslib-win32.c
  206. path.c
  207. pci-ids.txt
  208. pflib.c
  209. pflib.h
  210. poison.h
  211. posix-aio-compat.c
  212. ppc-dis.c
  213. ppc.ld
  214. ppc64.ld
  215. qapi-schema-guest.json
  216. qapi-schema-test.json
  217. qapi-schema.json
  218. qbool.c
  219. qbool.h
  220. qdict-test-data.txt
  221. qdict.c
  222. qdict.h
  223. qemu-aio.h
  224. qemu-barrier.h
  225. qemu-char.c
  226. qemu-char.h
  227. qemu-common.h
  228. qemu-config.c
  229. qemu-config.h
  230. qemu-coroutine-int.h
  231. qemu-coroutine-lock.c
  232. qemu-coroutine.c
  233. qemu-coroutine.h
  234. qemu-doc.texi
  235. qemu-error.c
  236. qemu-error.h
  237. qemu-ga.c
  238. qemu-img-cmds.hx
  239. qemu-img.c
  240. qemu-img.texi
  241. qemu-io.c
  242. qemu-lock.h
  243. qemu-log.h
  244. qemu-nbd.c
  245. qemu-nbd.texi
  246. qemu-objects.h
  247. qemu-option.c
  248. qemu-option.h
  249. qemu-options.h
  250. qemu-options.hx
  251. qemu-os-posix.h
  252. qemu-os-win32.h
  253. qemu-progress.c
  254. qemu-queue.h
  255. qemu-sockets.c
  256. qemu-tech.texi
  257. qemu-thread-posix.c
  258. qemu-thread-posix.h
  259. qemu-thread-win32.c
  260. qemu-thread-win32.h
  261. qemu-thread.h
  262. qemu-timer-common.c
  263. qemu-timer.c
  264. qemu-timer.h
  265. qemu-tls.h
  266. qemu-tool.c
  267. qemu-x509.h
  268. qemu-xattr.h
  269. qemu.sasl
  270. qemu_socket.h
  271. qerror.c
  272. qerror.h
  273. qfloat.c
  274. qfloat.h
  275. qint.c
  276. qint.h
  277. qjson.c
  278. qjson.h
  279. qlist.c
  280. qlist.h
  281. qmp-commands.hx
  282. qmp.c
  283. qobject.h
  284. qstring.c
  285. qstring.h
  286. range.h
  287. readline.c
  288. readline.h
  289. README
  290. rules.mak
  291. s390-dis.c
  292. s390.ld
  293. savevm.c
  294. sh4-dis.c
  295. softmmu-semi.h
  296. softmmu_defs.h
  297. softmmu_exec.h
  298. softmmu_header.h
  299. softmmu_template.h
  300. sparc-dis.c
  301. sparc.ld
  302. sparc64.ld
  303. spice-qemu-char.c
  304. sysemu.h
  305. targphys.h
  306. tcg-runtime.c
  307. tci-dis.c
  308. tci.c
  309. test-coroutine.c
  310. test-qmp-commands.c
  311. test-visitor.c
  312. thunk.c
  313. thunk.h
  314. TODO
  315. trace-events
  316. translate-all.c
  317. uboot_image.h
  318. usb-bsd.c
  319. usb-linux.c
  320. usb-redir.c
  321. usb-stub.c
  322. user-exec.c
  323. VERSION
  324. version.rc
  325. vgafont.h
  326. vl.c
  327. x86_64.ld
  328. xen-all.c
  329. xen-mapcache.c
  330. xen-mapcache.h
  331. xen-stub.c
  332. xtensa-semi.c