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qemu / qemu / 7ebee43ee3e2fcd7b5063058b7ef74bc43216733
commit7ebee43ee3e2fcd7b5063058b7ef74bc43216733[log] [tgz]
authorRichard Henderson <rth@twiddle.net>Wed Jun 29 21:10:59 2016 -0700
committerRichard Henderson <rth@twiddle.net>Wed Oct 26 08:29:01 2016 -0700
tree366db1d66ff70d8332b6fb38b07085a0f79c6293
parentc482cb117cc418115ca9c6d21a7a2315414c0a40 [diff]
tcg: Add atomic128 helpers

Force the use of cmpxchg16b on x86_64.

Wikipedia suggests that only very old AMD64 (circa 2004) did not have
this instruction.  Further, it's required by Windows 8 so no new cpus
will ever omit it.

If we truely care about these, then we could check this at startup time
and then avoid executing paths that use it.

Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
6 files changed
tree: 366db1d66ff70d8332b6fb38b07085a0f79c6293
  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-alpha/
  34. target-arm/
  35. target-cris/
  36. target-i386/
  37. target-lm32/
  38. target-m68k/
  39. target-microblaze/
  40. target-mips/
  41. target-moxie/
  42. target-openrisc/
  43. target-ppc/
  44. target-s390x/
  45. target-sh4/
  46. target-sparc/
  47. target-tilegx/
  48. target-tricore/
  49. target-unicore32/
  50. target-xtensa/
  51. tcg/
  52. tests/
  53. trace/
  54. ui/
  55. util/
  56. dtc
  57. pixman
  58. .dir-locals.el
  59. .exrc
  60. .gitignore
  61. .gitmodules
  62. .mailmap
  63. .travis.yml
  64. accel.c
  65. aio-posix.c
  66. aio-win32.c
  67. arch_init.c
  68. async.c
  69. atomic_template.h
  70. balloon.c
  71. block.c
  72. blockdev-nbd.c
  73. blockdev.c
  74. blockjob.c
  75. bootdevice.c
  76. bt-host.c
  77. bt-vhci.c
  78. Changelog
  79. CODING_STYLE
  80. configure
  81. COPYING
  82. COPYING.LIB
  83. cpu-exec-common.c
  84. cpu-exec.c
  85. cpus-common.c
  86. cpus.c
  87. cputlb.c
  88. device-hotplug.c
  89. device_tree.c
  90. disas.c
  91. dma-helpers.c
  92. dump.c
  93. exec.c
  94. gdbstub.c
  95. HACKING
  96. hmp-commands-info.hx
  97. hmp-commands.hx
  98. hmp.c
  99. hmp.h
  100. iohandler.c
  101. ioport.c
  102. iothread.c
  103. kvm-all.c
  104. kvm-stub.c
  105. LICENSE
  106. main-loop.c
  107. MAINTAINERS
  108. Makefile
  109. Makefile.objs
  110. Makefile.target
  111. memory.c
  112. memory_mapping.c
  113. module-common.c
  114. monitor.c
  115. numa.c
  116. os-posix.c
  117. os-win32.c
  118. page_cache.c
  119. qapi-schema.json
  120. qdev-monitor.c
  121. qdict-test-data.txt
  122. qemu-bridge-helper.c
  123. qemu-char.c
  124. qemu-doc.texi
  125. qemu-ga.texi
  126. qemu-img-cmds.hx
  127. qemu-img.c
  128. qemu-img.texi
  129. qemu-io-cmds.c
  130. qemu-io.c
  131. qemu-nbd.c
  132. qemu-nbd.texi
  133. qemu-option-trace.texi
  134. qemu-options-wrapper.h
  135. qemu-options.h
  136. qemu-options.hx
  137. qemu-seccomp.c
  138. qemu-tech.texi
  139. qemu-timer.c
  140. qemu.nsi
  141. qemu.sasl
  142. qmp.c
  143. qtest.c
  144. README
  145. replication.c
  146. replication.h
  147. rules.mak
  148. softmmu_template.h
  149. spice-qemu-char.c
  150. tcg-runtime.c
  151. tci.c
  152. thread-pool.c
  153. thunk.c
  154. tpm.c
  155. trace-events
  156. translate-all.c
  157. translate-all.h
  158. translate-common.c
  159. user-exec.c
  160. VERSION
  161. version.rc
  162. vl.c
  163. xen-common-stub.c
  164. xen-common.c
  165. xen-hvm-stub.c
  166. xen-hvm.c
  167. xen-mapcache.c