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qemu / qemu / 89d62be9f4fb538db7f919a2be7df2544ffc02c5
commit89d62be9f4fb538db7f919a2be7df2544ffc02c5[log] [tgz]
authorMichael S. Tsirkin <mst@redhat.com>Tue Dec 18 14:02:46 2012 +0200
committerMichael S. Tsirkin <mst@redhat.com>Wed Dec 26 11:49:29 2012 +0200
tree5a19bad2746869cf396e85f55c196bddf660244b
parent70f8ee395afda6d96b15cb9a5b311af7720dded0 [diff]
virtio-pci: don't poll masked vectors

At the moment, when irqfd is in use but a vector is masked,
qemu will poll it and handle vector masks in userspace.
Since almost no one ever looks at the pending bits,
it is better to defer this until pending bits
are actually read.
Implement this optimization using the new poll notifier.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
1 file changed
tree: 5a19bad2746869cf396e85f55c196bddf660244b
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
  5. default-configs/
  6. disas/
  7. docs/
  8. fpu/
  9. fsdev/
  10. gdb-xml/
  11. hw/
  12. include/
  13. ldscripts/
  14. libcacard/
  15. linux-headers/
  16. linux-user/
  17. net/
  18. pc-bios/
  19. qapi/
  20. qga/
  21. QMP/
  22. qom/
  23. roms/
  24. scripts/
  25. slirp/
  26. stubs/
  27. sysconfigs/
  28. target-alpha/
  29. target-arm/
  30. target-cris/
  31. target-i386/
  32. target-lm32/
  33. target-m68k/
  34. target-microblaze/
  35. target-mips/
  36. target-openrisc/
  37. target-ppc/
  38. target-s390x/
  39. target-sh4/
  40. target-sparc/
  41. target-unicore32/
  42. target-xtensa/
  43. tcg/
  44. tests/
  45. trace/
  46. ui/
  47. pixman
  48. .exrc
  49. .gitignore
  50. .gitmodules
  51. .mailmap
  52. acl.c
  53. aes.c
  54. aio-posix.c
  55. aio-win32.c
  56. arch_init.c
  57. async.c
  58. balloon.c
  59. bitmap.c
  60. bitops.c
  61. block-migration.c
  62. block.c
  63. blockdev-nbd.c
  64. blockdev.c
  65. blockjob.c
  66. bt-host.c
  67. bt-vhci.c
  68. buffered_file.c
  69. buffered_file.h
  70. cache-utils.c
  71. Changelog
  72. cmd.c
  73. cmd.h
  74. CODING_STYLE
  75. compatfd.c
  76. configure
  77. COPYING
  78. COPYING.LIB
  79. coroutine-gthread.c
  80. coroutine-sigaltstack.c
  81. coroutine-ucontext.c
  82. coroutine-win32.c
  83. cpu-exec.c
  84. cpus.c
  85. cputlb.c
  86. cutils.c
  87. device_tree.c
  88. disas.c
  89. dma-helpers.c
  90. dump-stub.c
  91. dump.c
  92. envlist.c
  93. error.c
  94. event_notifier-posix.c
  95. event_notifier-win32.c
  96. exec.c
  97. gdbstub.c
  98. HACKING
  99. hmp-commands.hx
  100. hmp.c
  101. hmp.h
  102. host-utils.c
  103. iohandler.c
  104. ioport.c
  105. iov.c
  106. json-lexer.c
  107. json-parser.c
  108. json-streamer.c
  109. kvm-all.c
  110. kvm-stub.c
  111. LICENSE
  112. main-loop.c
  113. MAINTAINERS
  114. Makefile
  115. Makefile.objs
  116. Makefile.target
  117. memory.c
  118. memory_mapping-stub.c
  119. memory_mapping.c
  120. migration-exec.c
  121. migration-fd.c
  122. migration-tcp.c
  123. migration-unix.c
  124. migration.c
  125. module.c
  126. monitor.c
  127. nbd.c
  128. notify.c
  129. os-posix.c
  130. os-win32.c
  131. osdep.c
  132. oslib-posix.c
  133. oslib-win32.c
  134. page_cache.c
  135. path.c
  136. pci-ids.txt
  137. qapi-schema-test.json
  138. qapi-schema.json
  139. qbool.c
  140. qdict-test-data.txt
  141. qdict.c
  142. qemu-bridge-helper.c
  143. qemu-char.c
  144. qemu-config.c
  145. qemu-coroutine-io.c
  146. qemu-coroutine-lock.c
  147. qemu-coroutine-sleep.c
  148. qemu-coroutine.c
  149. qemu-doc.texi
  150. qemu-error.c
  151. qemu-img-cmds.hx
  152. qemu-img.c
  153. qemu-img.texi
  154. qemu-io.c
  155. qemu-log.c
  156. qemu-nbd.c
  157. qemu-nbd.texi
  158. qemu-option.c
  159. qemu-options-wrapper.h
  160. qemu-options.h
  161. qemu-options.hx
  162. qemu-progress.c
  163. qemu-seccomp.c
  164. qemu-sockets.c
  165. qemu-tech.texi
  166. qemu-thread-posix.c
  167. qemu-thread-win32.c
  168. qemu-timer-common.c
  169. qemu-timer.c
  170. qemu-tool.c
  171. qemu-user.c
  172. qemu.sasl
  173. qerror.c
  174. qfloat.c
  175. qint.c
  176. qjson.c
  177. qlist.c
  178. qmp-commands.hx
  179. qmp.c
  180. qstring.c
  181. qtest.c
  182. readline.c
  183. README
  184. rules.mak
  185. savevm.c
  186. spice-qemu-char.c
  187. tcg-runtime.c
  188. tci.c
  189. thread-pool.c
  190. thunk.c
  191. TODO
  192. trace-events
  193. translate-all.c
  194. translate-all.h
  195. uri.c
  196. user-exec.c
  197. VERSION
  198. version.rc
  199. vl.c
  200. xen-all.c
  201. xen-mapcache.c
  202. xen-stub.c