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Update the PCI bus driver to correctly set the EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM attribute of PCI IO. Per UEFI spec, this attribute is used to determine if the ROM image is from the ROM BAR or from a platform specific location.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11159 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
rsun3 2010-12-14 02:33:15 +00:00
parent f92d103109
commit 4ed4e19c08
4 changed files with 17 additions and 0 deletions
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5
MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h
View File

@ -223,6 +223,11 @@ struct _PCI_IO_DEVICE {
// //
UINT32 Decodes; UINT32 Decodes;
//
// TRUE if the ROM image is from the PCI Option ROM BAR
//
BOOLEAN EmbeddedRom;
// //
// The OptionRom Size // The OptionRom Size
// //

2
MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c
View File

@ -268,6 +268,7 @@ RegisterPciDevice (
&PlatformOpRomSize &PlatformOpRomSize
); );
if (!EFI_ERROR (Status)) { if (!EFI_ERROR (Status)) {
PciIoDevice->EmbeddedRom = FALSE;
PciIoDevice->RomSize = PlatformOpRomSize; PciIoDevice->RomSize = PlatformOpRomSize;
PciIoDevice->PciIo.RomSize = PlatformOpRomSize; PciIoDevice->PciIo.RomSize = PlatformOpRomSize;
PciIoDevice->PciIo.RomImage = PlatformOpRomBuffer; PciIoDevice->PciIo.RomImage = PlatformOpRomBuffer;
@ -293,6 +294,7 @@ RegisterPciDevice (
&PlatformOpRomSize &PlatformOpRomSize
); );
if (!EFI_ERROR (Status)) { if (!EFI_ERROR (Status)) {
PciIoDevice->EmbeddedRom = FALSE;
PciIoDevice->RomSize = PlatformOpRomSize; PciIoDevice->RomSize = PlatformOpRomSize;
PciIoDevice->PciIo.RomSize = PlatformOpRomSize; PciIoDevice->PciIo.RomSize = PlatformOpRomSize;
PciIoDevice->PciIo.RomImage = PlatformOpRomBuffer; PciIoDevice->PciIo.RomImage = PlatformOpRomBuffer;

9
MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
View File

@ -940,6 +940,15 @@ PciSetDeviceAttribute (
EFI_PCI_IO_ATTRIBUTE_BUS_MASTER ); EFI_PCI_IO_ATTRIBUTE_BUS_MASTER );
} else { } else {
//
// When this attribute is clear, the RomImage and RomSize fields in the PCI IO were
// initialized based on the PCI option ROM found through the ROM BAR of the PCI controller.
// When this attribute is set, the PCI option ROM described by the RomImage and RomSize
// fields is not from the the ROM BAR of the PCI controller.
//
if (!PciIoDevice->EmbeddedRom) {
Attributes |= EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM;
}
PciIoDevice->Attributes = Attributes; PciIoDevice->Attributes = Attributes;
} }
} }

1
MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
View File

@ -500,6 +500,7 @@ LoadOpRomImage (
RomDecode (PciDevice, RomBarIndex, RomBar, FALSE); RomDecode (PciDevice, RomBarIndex, RomBar, FALSE);
PciDevice->EmbeddedRom = TRUE;
PciDevice->PciIo.RomSize = RomImageSize; PciDevice->PciIo.RomSize = RomImageSize;
PciDevice->PciIo.RomImage = RomInMemory; PciDevice->PciIo.RomImage = RomInMemory;