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Correct the right bits judgment for get size of OptionROM.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2236 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2007-01-12 06:20:33 +00:00
parent 3727980651
commit 9a037c5d09
1 changed files with 6 additions and 5 deletions
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11
EdkModulePkg/Bus/Pci/PciBus/Dxe/PciOptionRomSupport.c
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@@ -64,7 +64,7 @@ Returns:
PciRootBridgeIo = PciIoDevice->PciRootBridgeIo; PciRootBridgeIo = PciIoDevice->PciRootBridgeIo;
// //
// offset is 48 if is not ppb // offset is 0x30 if is not ppb
// //
// //
@@ -112,15 +112,16 @@ Returns:
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
return Status; return Status;
} }
//
AllOnes &= 0xFFFFFFFC; // Bits [1, 10] are reserved
if ((AllOnes == 0) || (AllOnes == 0xFFFFFFFC)) { //
AllOnes &= 0xFFFFF800;
if ((AllOnes == 0) || (AllOnes == 0xFFFFF800)) {
return EFI_NOT_FOUND; return EFI_NOT_FOUND;
} }
PciIoDevice->RomSize = (UINT64) ((~AllOnes) + 1); PciIoDevice->RomSize = (UINT64) ((~AllOnes) + 1);
return EFI_SUCCESS; return EFI_SUCCESS;
} }
EFI_STATUS EFI_STATUS