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authorMarcello Sylvester Bauer <marcello.bauer@9elements.com>2020-07-22 10:55:27 +0200
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>2020-09-16 06:36:18 +0000
commit5c065855284bd0ca65784d313e094054e23685bb (patch)
tree5e3614e6ab6bb719dceb4b08b236a11f235c6f22 /MdePkg/Include/Library
parent28d7eea97e80f76b7e4978298e86ef924bdd394b (diff)
downloadedk2-5c065855284bd0ca65784d313e094054e23685bb.tar.gz
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MdePkg: PciExpressLib support variable size MMCONF
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>
Diffstat (limited to 'MdePkg/Include/Library')
-rw-r--r--MdePkg/Include/Library/PciExpressLib.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/MdePkg/Include/Library/PciExpressLib.h b/MdePkg/Include/Library/PciExpressLib.h
index 826fdcf7db..d78193a0a3 100644
--- a/MdePkg/Include/Library/PciExpressLib.h
+++ b/MdePkg/Include/Library/PciExpressLib.h
@@ -2,8 +2,9 @@
Provides services to access PCI Configuration Space using the MMIO PCI Express window.
This library is identical to the PCI Library, except the access method for performing PCI
- configuration cycles must be through the 256 MB PCI Express MMIO window whose base address
- is defined by PcdPciExpressBaseAddress.
+ configuration cycles must be through the PCI Express MMIO window whose base address
+ is defined by PcdPciExpressBaseAddress and size defined by PcdPciExpressBaseSize.
+
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent