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audk
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4 Commits

Author SHA1 Message Date
geekboy15a 28319270fb Fixed GDT load issue in some cases after a reset. Only CS should be used to access flash prior to entering protected mode. 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9839 6f19259b-4bc3-4df7-8a09-765794883524
 2010-01-27 22:45:14 +00:00
jljusten 141815f3c7 OVMF VTF0 Reset Vector: Cleanup Global Descriptor Table (GDT) 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9676 6f19259b-4bc3-4df7-8a09-765794883524
 2010-01-04 16:18:09 +00:00
jljusten d22d1f535b OVMF VTF0 Reset Vector: Set 'accessed' bit in GDT descriptors 
In some environments, the accessed bit should be set to allow the
global descriptor table (GDT) to reside in unmodifiable flash
memory.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9675 6f19259b-4bc3-4df7-8a09-765794883524
 2010-01-04 16:18:06 +00:00
jljusten 7a55c43b07 OVMF ResetVector: Modify interface with SEC module 
Previously it was:
  ESI/RSI - SEC Core entry point
  EDI/RDI - PEI Core entry point
  EBP/RBP - Start of BFV

Now it is:
  RAX/EAX  Initial value of the EAX register
           (BIST: Built-in Self Test)
  DI       'BP': boot-strap processor, or
           'AP': application processor
  RBP/EBP  Address of Boot Firmware Volume (BFV)

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9571 6f19259b-4bc3-4df7-8a09-765794883524
 2009-12-16 23:29:15 +00:00