v3: don't call reset functions on cpu initialization

There is absolutely no need to call reset functions when initializing
devices. Since we are already registering them, calling qemu_system_reset()
should suffice. Actually, it is what happens when we reboot the machine,
and using the same process instead of a special case semantics will even
allow us to find bugs easier.

Furthermore, the fact that we initialize things like the cpu quite early,
leads to the need to introduce synchronization stuff like qemu_system_cond.
This patch removes it entirely. All we need to do is call qemu_system_reset()
only when we're already sure the system is up and running

I tested it with qemu (with and without io-thread) and qemu-kvm, and it
seems to be doing okay - although qemu-kvm uses a slightly different patch.

[ v2: user mode still needs cpu_reset, so put it in ifdef. ]
[ v3: leave qemu_system_cond for now. ]

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
14 files changed
tree: 70c88e1184c0b4e77b1b4997250cc418d07cde8b
  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. roms/
  13. slirp/
  14. target-alpha/
  15. target-arm/
  16. target-cris/
  17. target-i386/
  18. target-m68k/
  19. target-microblaze/
  20. target-mips/
  21. target-ppc/
  22. target-sh4/
  23. target-sparc/
  24. tcg/
  25. tests/
  26. .gitignore
  27. .gitmodules
  28. a.out.h
  29. acl.c
  30. acl.h
  31. aes.c
  32. aes.h
  33. aio.c
  34. alpha-dis.c
  35. alpha.ld
  36. arm-dis.c
  37. arm-semi.c
  38. arm.ld
  39. async.c
  40. balloon.h
  41. block.c
  42. block.h
  43. block_int.h
  44. bswap.h
  45. bt-host.c
  46. bt-host.h
  47. bt-vhci.c
  48. buffered_file.c
  49. buffered_file.h
  50. cache-utils.c
  51. cache-utils.h
  52. Changelog
  53. check-qdict.c
  54. check-qint.c
  55. check-qlist.c
  56. check-qstring.c
  57. cmd.c
  58. cmd.h
  59. cocoa.m
  60. CODING_STYLE
  61. config.h
  62. configure
  63. console.c
  64. console.h
  65. COPYING
  66. COPYING.LIB
  67. cpu-all.h
  68. cpu-common.h
  69. cpu-defs.h
  70. cpu-exec.c
  71. create_config
  72. cris-dis.c
  73. curses.c
  74. curses_keys.h
  75. cutils.c
  76. d3des.c
  77. d3des.h
  78. def-helper.h
  79. device_tree.c
  80. device_tree.h
  81. dis-asm.h
  82. disas.c
  83. disas.h
  84. dma-helpers.c
  85. dma.h
  86. dyngen-exec.h
  87. elf.h
  88. envlist.c
  89. envlist.h
  90. exec-all.h
  91. exec.c
  92. feature_to_c.sh
  93. gdbstub.c
  94. gdbstub.h
  95. gen-icount.h
  96. host-utils.c
  97. host-utils.h
  98. hostregs_helper.h
  99. hpet.h
  100. hppa-dis.c
  101. hppa.ld
  102. hxtool
  103. i386-dis.c
  104. i386.ld
  105. ia64.ld
  106. ioport-user.c
  107. ioport.c
  108. ioport.h
  109. keymaps.c
  110. keymaps.h
  111. kvm-all.c
  112. kvm.h
  113. libfdt_env.h
  114. LICENSE
  115. linux-aio.c
  116. m68k-dis.c
  117. m68k-semi.c
  118. m68k.ld
  119. MAINTAINERS
  120. Makefile
  121. Makefile.hw
  122. Makefile.target
  123. Makefile.user
  124. microblaze-dis.c
  125. migration-exec.c
  126. migration-fd.c
  127. migration-tcp.c
  128. migration-unix.c
  129. migration.c
  130. migration.h
  131. mips-dis.c
  132. mips.ld
  133. module.c
  134. module.h
  135. monitor.c
  136. monitor.h
  137. nbd.c
  138. nbd.h
  139. net-checksum.c
  140. net.c
  141. net.h
  142. osdep.c
  143. osdep.h
  144. path.c
  145. pci-ids.txt
  146. posix-aio-compat.c
  147. ppc-dis.c
  148. ppc.ld
  149. ppc64.ld
  150. qdict-test-data.txt
  151. qdict.c
  152. qdict.h
  153. qemu-aio.h
  154. qemu-binfmt-conf.sh
  155. qemu-char.c
  156. qemu-char.h
  157. qemu-common.h
  158. qemu-config.c
  159. qemu-config.h
  160. qemu-doc.texi
  161. qemu-img-cmds.hx
  162. qemu-img.c
  163. qemu-img.texi
  164. qemu-io.c
  165. qemu-lock.h
  166. qemu-log.h
  167. qemu-malloc.c
  168. qemu-monitor.hx
  169. qemu-nbd.c
  170. qemu-nbd.texi
  171. qemu-option.c
  172. qemu-option.h
  173. qemu-options.hx
  174. qemu-queue.h
  175. qemu-sockets.c
  176. qemu-tech.texi
  177. qemu-thread.c
  178. qemu-thread.h
  179. qemu-timer.h
  180. qemu-tool.c
  181. qemu.sasl
  182. qemu_socket.h
  183. qint.c
  184. qint.h
  185. qlist.c
  186. qlist.h
  187. qobject.h
  188. qstring.c
  189. qstring.h
  190. readline.c
  191. readline.h
  192. README
  193. rules.mak
  194. s390-dis.c
  195. s390.ld
  196. savevm.c
  197. sdl.c
  198. sdl_keysym.h
  199. sdl_zoom.c
  200. sdl_zoom.h
  201. sdl_zoom_template.h
  202. sh4-dis.c
  203. softmmu-semi.h
  204. softmmu_defs.h
  205. softmmu_exec.h
  206. softmmu_header.h
  207. softmmu_template.h
  208. sparc-dis.c
  209. sparc.ld
  210. sparc64.ld
  211. sysemu.h
  212. targphys.h
  213. tcg-runtime.c
  214. texi2pod.pl
  215. thunk.c
  216. thunk.h
  217. TODO
  218. translate-all.c
  219. uboot_image.h
  220. usb-bsd.c
  221. usb-linux.c
  222. usb-stub.c
  223. VERSION
  224. vgafont.h
  225. vl.c
  226. vnc-auth-sasl.c
  227. vnc-auth-sasl.h
  228. vnc-auth-vencrypt.c
  229. vnc-auth-vencrypt.h
  230. vnc-tls.c
  231. vnc-tls.h
  232. vnc.c
  233. vnc.h
  234. vnc_keysym.h
  235. vnchextile.h
  236. x86_64.ld
  237. x_keymap.c
  238. x_keymap.h