Please note: this is still *RFC* version, so we have not gone thru all the code
in EDK2 for applying the change of PciSegmentLib definition.
v4:
- Modify the code according to the comments from Ray, Laszlo and Ard (Please see
the notes of Patch 1/3)
- Ignore translation of bus in CreateRootBridge.
v3:
- Keep definition of Translation consistent in EDKII code: Translation = device
address - host address.
- Patch 2/2 is split into 2 patches (2/3 and 3/3).
- Refine comments and commit messages to make the code easier to understand.
v2:
Changs are made according to the discussion on the mailing list, including:
- PciRootBridgeIo->Configuration should return CPU view address, as well as
PciIo->GetBarAttributes, and Translation Offset should be equal to PCI view
address - CPU view address.
- Add translation offset to PCI_ROOT_BRIDGE_APERTURE structure definition.
- PciHostBridge driver internally used Base Address is still based on PCI view
address, and translation offset = CPU view - PCI view, which follows the
definition in ACPI, and not the same as that in UEFI spec.
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Heyi Guo (3):
MdeModulePkg/PciHostBridgeDxe: Add support for address translation
MdeModulePkg/PciBus: convert host address to device address
MdeModulePkg/PciBus: return CPU address for GetBarAttributes
MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostResource.h | 2 +
MdeModulePkg/Include/Library/PciHostBridgeLib.h | 14 +++
MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c | 12 +-
MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c | 85 +++++++++++---
MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c | 122 +++++++++++++++++---
5 files changed, 204 insertions(+), 31 deletions(-)
--
2.7.4
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