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qemu / qemu / 1b296c3def4b9b63d2fdbce6646edd108a3e616c
commit1b296c3def4b9b63d2fdbce6646edd108a3e616c[log] [tgz]
authorJean-Philippe Brucker <jean-philippe@linaro.org>Fri Oct 30 19:05:10 2020 +0100
committerMichael S. Tsirkin <mst@redhat.com>Tue Nov 03 16:39:05 2020 -0500
tree4641ac050f0430c0018bac7c1e1d6998d57f6cc3
parent5c3cfe33f4185841feaedd07bea1d6d7e02011a0 [diff]
vfio: Don't issue full 2^64 unmap

IOMMUs may declare memory regions spanning from 0 to UINT64_MAX. When
attempting to deal with such region, vfio_listener_region_del() passes a
size of 2^64 to int128_get64() which throws an assertion failure.  Even
ignoring this, the VFIO_IOMMU_DMA_MAP ioctl cannot handle this size
since the size field is 64-bit. Split the request in two.

Acked-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-Id: <20201030180510.747225-11-jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
1 file changed
tree: 4641ac050f0430c0018bac7c1e1d6998d57f6cc3
  1. .github/
  2. .gitlab-ci.d/
  3. accel/
  4. audio/
  5. authz/
  6. backends/
  7. block/
  8. bsd-user/
  9. chardev/
  10. contrib/
  11. crypto/
  12. default-configs/
  13. disas/
  14. docs/
  15. dump/
  16. fpu/
  17. fsdev/
  18. gdb-xml/
  19. hw/
  20. include/
  21. io/
  22. libdecnumber/
  23. linux-headers/
  24. linux-user/
  25. migration/
  26. monitor/
  27. nbd/
  28. net/
  29. pc-bios/
  30. plugins/
  31. po/
  32. python/
  33. qapi/
  34. qga/
  35. qobject/
  36. qom/
  37. replay/
  38. roms/
  39. scripts/
  40. scsi/
  41. softmmu/
  42. storage-daemon/
  43. stubs/
  44. target/
  45. tcg/
  46. tests/
  47. tools/
  48. trace/
  49. ui/
  50. util/
  51. capstone
  52. dtc
  53. meson
  54. slirp
  55. .cirrus.yml
  56. .dir-locals.el
  57. .editorconfig
  58. .exrc
  59. .gdbinit
  60. .gitignore
  61. .gitlab-ci.yml
  62. .gitmodules
  63. .gitpublish
  64. .mailmap
  65. .patchew.yml
  66. .readthedocs.yml
  67. .shippable.yml
  68. .travis.yml
  69. block.c
  70. blockdev-nbd.c
  71. blockdev.c
  72. blockjob.c
  73. CODING_STYLE.rst
  74. configure
  75. COPYING
  76. COPYING.LIB
  77. cpu.c
  78. cpus-common.c
  79. disas.c
  80. exec-vary.c
  81. gdbstub.c
  82. gitdm.config
  83. hmp-commands-info.hx
  84. hmp-commands.hx
  85. iothread.c
  86. job-qmp.c
  87. job.c
  88. Kconfig
  89. Kconfig.host
  90. LICENSE
  91. MAINTAINERS
  92. Makefile
  93. memory_ldst.c.inc
  94. meson.build
  95. meson_options.txt
  96. module-common.c
  97. os-posix.c
  98. os-win32.c
  99. qemu-bridge-helper.c
  100. qemu-edid.c
  101. qemu-img-cmds.hx
  102. qemu-img.c
  103. qemu-io-cmds.c
  104. qemu-io.c
  105. qemu-keymap.c
  106. qemu-nbd.c
  107. qemu-options-wrapper.h
  108. qemu-options.h
  109. qemu-options.hx
  110. qemu.nsi
  111. qemu.sasl
  112. README.rst
  113. replication.c
  114. replication.h
  115. thunk.c
  116. trace-events
  117. VERSION
  118. version.rc