cvs commit: src/sys/boot/i386/btx/btx btx.S

John Baldwin jhb at
Wed Sep 27 12:32:30 PDT 2006

jhb         2006-09-27 19:32:26 UTC

  FreeBSD src repository

  Modified files:
    sys/boot/i386/btx/btx btx.S 
  Emulate moving cr0, cr2, cr3, or cr4 into any i386 general register
  rather than just emulating mov cr0, eax.  This fixes some Compaq/HP BIOS
  with DMA (as the BIOS tried to read cr3 so it could translate addresses
  if paging was enabled).
  MFC after:      1 week
  Revision  Changes    Path
  1.39      +18 -6     src/sys/boot/i386/btx/btx/btx.S

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