mirror of https://github.com/acidanthera/audk.git
1a3bee2082
Currently, the implementation of EFI_PCI_IO_PROTOCOL::GetLocation() in NonDiscoverablePciDeviceDxe returns the same set of dummy values for each instance of the NON_DISCOVERABLE_DEVICE protocol that it attaches itself to. However, this turns out to be causing problems in cases where software (such as the ARM Compliance Test Suite [ACS]) attempts to use these values to uniquely identify controllers, since the collisions create ambiguity in this regard. So let's modify GetLocation() to return an arbitrary bus/device tuple on segment 0xff instead. This is guaranteed not to clash with other non-discoverable PCI devices, and highly unlikely to clash with real PCIe devices. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Star Zeng <star.zeng@intel.com> |
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| .. | ||
| ComponentName.c | ||
| NonDiscoverablePciDeviceDxe.c | ||
| NonDiscoverablePciDeviceDxe.inf | ||
| NonDiscoverablePciDeviceIo.c | ||
| NonDiscoverablePciDeviceIo.h | ||