fix rtc-td-hack on host without high-res timers

On hosts without high-res timers it is impossible to inject rtc interrupt
faster then 1kHz. Windows sometimes configures RTC to generate 1kHz
interrupts, so we can't inject missed interrupts when running on such
hosts. Always injecting an interrupt on REG_C read is also not an option
since Windows wait for REG_C to become zero with interrupt disabled
during boot. This patch uses mixed approach: accelerate timer + inject
up to 1000 interrupts on REG_C read.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
1 file changed
tree: b3f4e006817997a866dbcba1def18fd1fdbdfb1b
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. fpu/
  7. gdb-xml/
  8. hw/
  9. linux-user/
  10. net/
  11. pc-bios/
  12. QMP/
  13. roms/
  14. slirp/
  15. target-alpha/
  16. target-arm/
  17. target-cris/
  18. target-i386/
  19. target-m68k/
  20. target-microblaze/
  21. target-mips/
  22. target-ppc/
  23. target-s390x/
  24. target-sh4/
  25. target-sparc/
  26. tcg/
  27. tests/
  28. .gitignore
  29. .gitmodules
  30. a.out.h
  31. acl.c
  32. acl.h
  33. aes.c
  34. aes.h
  35. aio.c
  36. alpha-dis.c
  37. alpha.ld
  38. arm-dis.c
  39. arm-semi.c
  40. arm.ld
  41. async.c
  42. balloon.h
  43. block-migration.c
  44. block-migration.h
  45. block.c
  46. block.h
  47. block_int.h
  48. bswap.h
  49. bt-host.c
  50. bt-host.h
  51. bt-vhci.c
  52. buffered_file.c
  53. buffered_file.h
  54. cache-utils.c
  55. cache-utils.h
  56. Changelog
  57. check-qdict.c
  58. check-qfloat.c
  59. check-qint.c
  60. check-qjson.c
  61. check-qlist.c
  62. check-qstring.c
  63. cmd.c
  64. cmd.h
  65. cocoa.m
  66. CODING_STYLE
  67. config.h
  68. configure
  69. console.c
  70. console.h
  71. COPYING
  72. COPYING.LIB
  73. cpu-all.h
  74. cpu-common.h
  75. cpu-defs.h
  76. cpu-exec.c
  77. create_config
  78. cris-dis.c
  79. curses.c
  80. curses_keys.h
  81. cutils.c
  82. d3des.c
  83. d3des.h
  84. def-helper.h
  85. device_tree.c
  86. device_tree.h
  87. dis-asm.h
  88. disas.c
  89. disas.h
  90. dma-helpers.c
  91. dma.h
  92. dyngen-exec.h
  93. elf.h
  94. envlist.c
  95. envlist.h
  96. exec-all.h
  97. exec.c
  98. feature_to_c.sh
  99. gdbstub.c
  100. gdbstub.h
  101. gen-icount.h
  102. host-utils.c
  103. host-utils.h
  104. hostregs_helper.h
  105. hpet.h
  106. hppa-dis.c
  107. hppa.ld
  108. hxtool
  109. i386-dis.c
  110. i386.ld
  111. ia64.ld
  112. ioport-user.c
  113. ioport.c
  114. ioport.h
  115. json-lexer.c
  116. json-lexer.h
  117. json-parser.c
  118. json-parser.h
  119. json-streamer.c
  120. json-streamer.h
  121. keymaps.c
  122. keymaps.h
  123. kvm-all.c
  124. kvm.h
  125. libfdt_env.h
  126. LICENSE
  127. linux-aio.c
  128. m68k-dis.c
  129. m68k-semi.c
  130. m68k.ld
  131. MAINTAINERS
  132. Makefile
  133. Makefile.hw
  134. Makefile.target
  135. Makefile.user
  136. microblaze-dis.c
  137. migration-exec.c
  138. migration-fd.c
  139. migration-tcp.c
  140. migration-unix.c
  141. migration.c
  142. migration.h
  143. mips-dis.c
  144. mips.ld
  145. module.c
  146. module.h
  147. monitor.c
  148. monitor.h
  149. nbd.c
  150. nbd.h
  151. net-checksum.c
  152. net.c
  153. net.h
  154. osdep.c
  155. osdep.h
  156. path.c
  157. pci-ids.txt
  158. posix-aio-compat.c
  159. ppc-dis.c
  160. ppc.ld
  161. ppc64.ld
  162. qbool.c
  163. qbool.h
  164. qdict-test-data.txt
  165. qdict.c
  166. qdict.h
  167. qemu-aio.h
  168. qemu-binfmt-conf.sh
  169. qemu-char.c
  170. qemu-char.h
  171. qemu-common.h
  172. qemu-config.c
  173. qemu-config.h
  174. qemu-doc.texi
  175. qemu-img-cmds.hx
  176. qemu-img.c
  177. qemu-img.texi
  178. qemu-io.c
  179. qemu-lock.h
  180. qemu-log.h
  181. qemu-malloc.c
  182. qemu-monitor.hx
  183. qemu-nbd.c
  184. qemu-nbd.texi
  185. qemu-option.c
  186. qemu-option.h
  187. qemu-options.hx
  188. qemu-queue.h
  189. qemu-sockets.c
  190. qemu-tech.texi
  191. qemu-thread.c
  192. qemu-thread.h
  193. qemu-timer.h
  194. qemu-tool.c
  195. qemu.sasl
  196. qemu_socket.h
  197. qerror.c
  198. qerror.h
  199. qfloat.c
  200. qfloat.h
  201. qint.c
  202. qint.h
  203. qjson.c
  204. qjson.h
  205. qlist.c
  206. qlist.h
  207. qobject.h
  208. qstring.c
  209. qstring.h
  210. readline.c
  211. readline.h
  212. README
  213. rules.mak
  214. s390-dis.c
  215. s390.ld
  216. savevm.c
  217. sdl.c
  218. sdl_keysym.h
  219. sdl_zoom.c
  220. sdl_zoom.h
  221. sdl_zoom_template.h
  222. sh4-dis.c
  223. softmmu-semi.h
  224. softmmu_defs.h
  225. softmmu_exec.h
  226. softmmu_header.h
  227. softmmu_template.h
  228. sparc-dis.c
  229. sparc.ld
  230. sparc64.ld
  231. sysemu.h
  232. targphys.h
  233. tcg-runtime.c
  234. texi2pod.pl
  235. thunk.c
  236. thunk.h
  237. TODO
  238. translate-all.c
  239. uboot_image.h
  240. usb-bsd.c
  241. usb-linux.c
  242. usb-stub.c
  243. VERSION
  244. vgafont.h
  245. vl.c
  246. vnc-auth-sasl.c
  247. vnc-auth-sasl.h
  248. vnc-auth-vencrypt.c
  249. vnc-auth-vencrypt.h
  250. vnc-tls.c
  251. vnc-tls.h
  252. vnc.c
  253. vnc.h
  254. vnc_keysym.h
  255. vnchextile.h
  256. x86_64.ld
  257. x_keymap.c
  258. x_keymap.h