bugfix: vm halt when in reset looping

reset mc146818rtc device when RESET event happens.

Fix the problem:
  1. Guest boot the second cpu, set CMOS_RESET_CODE 0x0a to protect selfboot;
  2. VM being reset by others, hmp_system_reset;
  3. seabios resume check the CMOS_RESET_CODE, if 0x0a, jump to the BDA
     resume execution by jump via 40h:0067h;
  4. Guest halt;

Signed-off-by: hangaohuai <hangaohuai@huawei.com>
Message-Id: <20161219060336.10176-1-hangaohuai@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed
tree: da1893e40df377a7466a03ba1cf3aa3fb163babf
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
  5. contrib/
  6. crypto/
  7. default-configs/
  8. disas/
  9. docs/
  10. fpu/
  11. fsdev/
  12. gdb-xml/
  13. hw/
  14. include/
  15. io/
  16. libdecnumber/
  17. linux-headers/
  18. linux-user/
  19. migration/
  20. nbd/
  21. net/
  22. pc-bios/
  23. po/
  24. qapi/
  25. qga/
  26. qobject/
  27. qom/
  28. replay/
  29. roms/
  30. scripts/
  31. slirp/
  32. stubs/
  33. target/
  34. tcg/
  35. tests/
  36. trace/
  37. ui/
  38. util/
  39. .dir-locals.el
  40. .exrc
  41. .gitignore
  42. .gitmodules
  43. .mailmap
  44. .travis.yml
  45. accel.c
  46. aio-posix.c
  47. aio-win32.c
  48. arch_init.c
  49. async.c
  50. atomic_template.h
  51. balloon.c
  52. block.c
  53. blockdev-nbd.c
  54. blockdev.c
  55. blockjob.c
  56. bootdevice.c
  57. bt-host.c
  58. bt-vhci.c
  59. Changelog
  60. CODING_STYLE
  61. configure
  62. COPYING
  63. COPYING.LIB
  64. cpu-exec-common.c
  65. cpu-exec.c
  66. cpus-common.c
  67. cpus.c
  68. cputlb.c
  69. device-hotplug.c
  70. device_tree.c
  71. disas.c
  72. dma-helpers.c
  73. dump.c
  74. exec.c
  75. gdbstub.c
  76. HACKING
  77. hmp-commands-info.hx
  78. hmp-commands.hx
  79. hmp.c
  80. hmp.h
  81. iohandler.c
  82. ioport.c
  83. iothread.c
  84. kvm-all.c
  85. kvm-stub.c
  86. LICENSE
  87. main-loop.c
  88. MAINTAINERS
  89. Makefile
  90. Makefile.objs
  91. Makefile.target
  92. memory.c
  93. memory_ldst.inc.c
  94. memory_mapping.c
  95. module-common.c
  96. monitor.c
  97. numa.c
  98. os-posix.c
  99. os-win32.c
  100. page_cache.c
  101. qapi-schema.json
  102. qdev-monitor.c
  103. qdict-test-data.txt
  104. qemu-bridge-helper.c
  105. qemu-char.c
  106. qemu-doc.texi
  107. qemu-ga.texi
  108. qemu-img-cmds.hx
  109. qemu-img.c
  110. qemu-img.texi
  111. qemu-io-cmds.c
  112. qemu-io.c
  113. qemu-nbd.c
  114. qemu-nbd.texi
  115. qemu-option-trace.texi
  116. qemu-options-wrapper.h
  117. qemu-options.h
  118. qemu-options.hx
  119. qemu-seccomp.c
  120. qemu-tech.texi
  121. qemu-timer.c
  122. qemu.nsi
  123. qemu.sasl
  124. qmp.c
  125. qtest.c
  126. README
  127. replication.c
  128. replication.h
  129. rules.mak
  130. softmmu_template.h
  131. spice-qemu-char.c
  132. tcg-runtime.c
  133. tci.c
  134. thread-pool.c
  135. thunk.c
  136. tpm.c
  137. trace-events
  138. translate-all.c
  139. translate-all.h
  140. translate-common.c
  141. user-exec.c
  142. VERSION
  143. version.rc
  144. vl.c
  145. xen-common-stub.c
  146. xen-common.c
  147. xen-hvm-stub.c
  148. xen-hvm.c
  149. xen-mapcache.c