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qemu/qemu/7ad439df5616fd1854a58ef7bf87c7a092cd34ce
commit
7ad439df5616fd1854a58ef7bf87c7a092cd34ce
[log]
author
Richard Henderson <rth@twiddle.net>
Thu Dec 15 13:55:46 2016 -0800
committer
Richard Henderson <rth@twiddle.net>
Mon Jan 23 09:52:40 2017 -0800
tree
ce97d2216f2d5288a7be5bd210b542a583c8a414
parent
98cd9ca7cc560414ad4a79e7e9aee568d10f985e [diff]
target-hppa: Implement linux-user gateway page

For linux, page 0 is mapped as an execute-only gateway.  A gateway
page is a special bit in the page table that allows a B,GATE insn
within that page to raise processor permissions.  This is how system
calls are implemented for HPPA.

Rather than actually map anything here, or handle permissions at all,
implement the semantics of the actual linux syscall entry points.

Signed-off-by: Richard Henderson <rth@twiddle.net>
1 file changed
tree: ce97d2216f2d5288a7be5bd210b542a583c8a414
  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. dtc
  40. pixman
  41. .dir-locals.el
  42. .exrc
  43. .gitignore
  44. .gitmodules
  45. .mailmap
  46. .travis.yml
  47. accel.c
  48. aio-posix.c
  49. aio-win32.c
  50. arch_init.c
  51. async.c
  52. atomic_template.h
  53. balloon.c
  54. block.c
  55. blockdev-nbd.c
  56. blockdev.c
  57. blockjob.c
  58. bootdevice.c
  59. bt-host.c
  60. bt-vhci.c
  61. Changelog
  62. CODING_STYLE
  63. configure
  64. COPYING
  65. COPYING.LIB
  66. cpu-exec-common.c
  67. cpu-exec.c
  68. cpus-common.c
  69. cpus.c
  70. cputlb.c
  71. device-hotplug.c
  72. device_tree.c
  73. disas.c
  74. dma-helpers.c
  75. dump.c
  76. exec.c
  77. gdbstub.c
  78. HACKING
  79. hmp-commands-info.hx
  80. hmp-commands.hx
  81. hmp.c
  82. hmp.h
  83. iohandler.c
  84. ioport.c
  85. iothread.c
  86. kvm-all.c
  87. kvm-stub.c
  88. LICENSE
  89. main-loop.c
  90. MAINTAINERS
  91. Makefile
  92. Makefile.objs
  93. Makefile.target
  94. memory.c
  95. memory_ldst.inc.c
  96. memory_mapping.c
  97. module-common.c
  98. monitor.c
  99. numa.c
  100. os-posix.c
  101. os-win32.c
  102. page_cache.c
  103. qapi-schema.json
  104. qdev-monitor.c
  105. qdict-test-data.txt
  106. qemu-bridge-helper.c
  107. qemu-char.c
  108. qemu-doc.texi
  109. qemu-ga.texi
  110. qemu-img-cmds.hx
  111. qemu-img.c
  112. qemu-img.texi
  113. qemu-io-cmds.c
  114. qemu-io.c
  115. qemu-nbd.c
  116. qemu-nbd.texi
  117. qemu-option-trace.texi
  118. qemu-options-wrapper.h
  119. qemu-options.h
  120. qemu-options.hx
  121. qemu-seccomp.c
  122. qemu-tech.texi
  123. qemu-timer.c
  124. qemu.nsi
  125. qemu.sasl
  126. qmp.c
  127. qtest.c
  128. README
  129. replication.c
  130. replication.h
  131. rules.mak
  132. softmmu_template.h
  133. spice-qemu-char.c
  134. tcg-runtime.c
  135. tci.c
  136. thread-pool.c
  137. thunk.c
  138. tpm.c
  139. trace-events
  140. translate-all.c
  141. translate-all.h
  142. translate-common.c
  143. user-exec.c
  144. VERSION
  145. version.rc
  146. vl.c
  147. xen-common-stub.c
  148. xen-common.c
  149. xen-hvm-stub.c
  150. xen-hvm.c
  151. xen-mapcache.c