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MdePkg: PciExpressLib support variable size MMCONF

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Add support for arbitrary sized MMCONF by introducing a new PCD.
Add a return value to point out invalid PCI addresses.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Marcello Sylvester Bauer <marcello.bauer@9elements.com>
Cc: Patrick Rudolph <patrick.rudolph@9elements.com>
Cc: Christian Walter <christian.walter@9elements.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
This commit is contained in:
Marcello Sylvester Bauer
2020-07-22 10:55:27 +02:00
committed by mergify[bot]
parent 28d7eea97e
commit 5c06585528
8 changed files with 584 additions and 114 deletions
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6
MdePkg/Library/BasePciExpressLib/BasePciExpressLib.inf
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@@ -1,7 +1,7 @@
## @file
# Instance of PCI Express Library using the 256 MB PCI Express MMIO window.
# Instance of PCI Express Library using the variable size PCI Express MMIO window.
#
# PCI Express Library that uses the 256 MB PCI Express MMIO window to perform
# PCI Express Library that uses the variable size PCI Express MMIO window to perform
# PCI Configuration cycles. Layers on top of an I/O Library instance.
#
# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
@@ -38,4 +38,4 @@
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress ## CONSUMES
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseSize ## CONSUMES