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qemu / qemu / 0516f4b70264b9710a25718d21bd35ef463c875e
commit0516f4b70264b9710a25718d21bd35ef463c875e[log] [tgz]
authorXiaoyao Li <xiaoyao.li@intel.com>Wed Jul 30 17:52:52 2025 +0800
committerPaolo Bonzini <pbonzini@redhat.com>Wed Sep 17 19:00:58 2025 +0200
treeecb3563e5c3791feea1110d32924543dc0d94443
parentd99041a20328423bc6819ddd69b60cf98d8d84f1 [diff]
i386/cpu: Enable SMM cpu address space under KVM

Kirill Martynov reported assertation in cpu_asidx_from_attrs() being hit
when x86_cpu_dump_state() is called to dump the CPU state[*]. It happens
when the CPU is in SMM and KVM emulation failure due to misbehaving
guest.

The root cause is that QEMU i386 never enables the SMM address space for
cpu since KVM SMM support has been added.

Enable the SMM cpu address space under KVM when the SMM is enabled for
the x86machine.

[*] https://lore.kernel.org/qemu-devel/20250523154431.506993-1-stdcalllevi@yandex-team.ru/

Reported-by: Kirill Martynov <stdcalllevi@yandex-team.ru>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Tested-by: Kirill Martynov <stdcalllevi@yandex-team.ru>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20250730095253.1833411-2-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 files changed
tree: ecb3563e5c3791feea1110d32924543dc0d94443
  1. .github/
  2. .gitlab/
  3. .gitlab-ci.d/
  4. accel/
  5. audio/
  6. authz/
  7. backends/
  8. block/
  9. bsd-user/
  10. chardev/
  11. common-user/
  12. configs/
  13. contrib/
  14. crypto/
  15. disas/
  16. docs/
  17. dump/
  18. ebpf/
  19. fpu/
  20. fsdev/
  21. gdb-xml/
  22. gdbstub/
  23. host/
  24. hw/
  25. include/
  26. io/
  27. libdecnumber/
  28. linux-headers/
  29. linux-user/
  30. migration/
  31. monitor/
  32. nbd/
  33. net/
  34. pc-bios/
  35. plugins/
  36. po/
  37. python/
  38. qapi/
  39. qga/
  40. qobject/
  41. qom/
  42. replay/
  43. roms/
  44. rust/
  45. scripts/
  46. scsi/
  47. semihosting/
  48. stats/
  49. storage-daemon/
  50. stubs/
  51. subprojects/
  52. system/
  53. target/
  54. tcg/
  55. tests/
  56. tools/
  57. trace/
  58. ui/
  59. util/
  60. .b4-config
  61. .dir-locals.el
  62. .editorconfig
  63. .exrc
  64. .gdbinit
  65. .git-blame-ignore-revs
  66. .gitattributes
  67. .gitignore
  68. .gitlab-ci.yml
  69. .gitmodules
  70. .gitpublish
  71. .mailmap
  72. .patchew.yml
  73. .readthedocs.yml
  74. .travis.yml
  75. block.c
  76. blockdev-nbd.c
  77. blockdev.c
  78. blockjob.c
  79. clippy.toml
  80. configure
  81. COPYING
  82. COPYING.LIB
  83. cpu-common.c
  84. cpu-target.c
  85. event-loop-base.c
  86. gitdm.config
  87. hmp-commands-info.hx
  88. hmp-commands.hx
  89. iothread.c
  90. job-qmp.c
  91. job.c
  92. Kconfig
  93. Kconfig.host
  94. LICENSE
  95. MAINTAINERS
  96. Makefile
  97. meson.build
  98. meson_options.txt
  99. module-common.c
  100. os-posix.c
  101. os-wasm.c
  102. os-win32.c
  103. page-vary-common.c
  104. page-vary-target.c
  105. pythondeps.toml
  106. qemu-bridge-helper.c
  107. qemu-edid.c
  108. qemu-img-cmds.hx
  109. qemu-img.c
  110. qemu-io-cmds.c
  111. qemu-io.c
  112. qemu-keymap.c
  113. qemu-nbd.c
  114. qemu-options.hx
  115. qemu.nsi
  116. qemu.sasl
  117. README.rst
  118. replication.c
  119. target-info-stub.c
  120. target-info.c
  121. trace-events
  122. VERSION
  123. version.rc