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.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11159 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -940,6 +940,15 @@ PciSetDeviceAttribute (
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EFI_PCI_IO_ATTRIBUTE_BUS_MASTER );
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} else {
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//
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// When this attribute is clear, the RomImage and RomSize fields in the PCI IO were
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// initialized based on the PCI option ROM found through the ROM BAR of the PCI controller.
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// When this attribute is set, the PCI option ROM described by the RomImage and RomSize
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// fields is not from the the ROM BAR of the PCI controller.
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//
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if (!PciIoDevice->EmbeddedRom) {
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Attributes |= EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM;
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}
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PciIoDevice->Attributes = Attributes;
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}
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}
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