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kernel / pub / scm / utils / pciutils / pciutils / 1836a2d4c62a3adbad269e8177528c42daf40f42
commit1836a2d4c62a3adbad269e8177528c42daf40f42[log] [tgz]
authorPali Rohár <pali@kernel.org>Wed Feb 28 00:32:08 2024 +0100
committerMartin Mares <mj@ucw.cz>Fri Apr 05 13:14:01 2024 +0200
tree1f14d8c925e084b1d73fd4c8d5f04bd858ca49c5
parenta34006f8e9c1f80e1446d1007bfff3ffefef4d23 [diff]
libpci: ecam: Fix scanning of Extended BIOS Data Area for ACPI RSDP

At physical address 0x40E (part of BDA) is stored indirect 16-bit paragraph
offset to the EBDA, and not the EBDA itself. Fix it.

ACPI code in linux kernel checks if the EBDA offset in BDA is above
physical address 0x400. Do the same check here. It is for detection if EBDA
is present as it does not have to be on the old computers or in some
virtualised environments.
1 file changed
tree: 1f14d8c925e084b1d73fd4c8d5f04bd858ca49c5
  1. compat/
  2. lib/
  3. lmr/
  4. maint/
  5. tests/
  6. .gitignore
  7. bitops.h
  8. ChangeLog
  9. common.c
  10. COPYING
  11. example.c
  12. ls-caps-vendor.c
  13. ls-caps.c
  14. ls-ecaps.c
  15. ls-kernel.c
  16. ls-map.c
  17. ls-tree.c
  18. ls-vpd.c
  19. lspci.c
  20. lspci.h
  21. lspci.man
  22. Makefile
  23. pci.ids
  24. pci.ids.man
  25. pcilib.man
  26. pcilmr.c
  27. pcilmr.man
  28. pciutils.h
  29. pciutils.lsm
  30. pciutils.spec
  31. README
  32. README.Windows
  33. setpci.c
  34. setpci.man
  35. TODO
  36. update-pciids.man
  37. update-pciids.sh