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MdeModulePkg/IntelFrameworkModulePkg ACPI: Follow the new UEFI 2.4a spec to return EFI_ACCESS_DENIED for duplicated FADT, FACS or DSDT installation.

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15496 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Star Zeng
2014-05-06 02:11:23 +00:00
committed by lzeng14
parent a06ec3e2af
commit 5966402ed5
3 changed files with 46 additions and 137 deletions
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14
MdePkg/Include/Protocol/AcpiTable.h
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@@ -2,7 +2,7 @@
The file provides the protocol to install or remove an ACPI
table from a platform.
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -31,7 +31,12 @@ typedef struct _EFI_ACPI_TABLE_PROTOCOL EFI_ACPI_TABLE_PROTOCOL;
copy into the RSDT/XSDT. InstallAcpiTable() must insert the new
table at the end of the RSDT/XSDT. To prevent namespace
collision, ACPI tables may be created using UEFI ACPI table
format. On successful output, TableKey is
format. If this protocol is used to install a table with a
signature already present in the system, the new table will not
replace the existing table. It is a platform implementation
decision to add a new table with a signature matching an
existing table or disallow duplicate table signatures and
return EFI_ACCESS_DENIED. On successful output, TableKey is
initialized with a unique key. Its value may be used in a
subsequent call to UninstallAcpiTable to remove an ACPI table.
If an EFI application is running at the time of this call, the
@@ -61,7 +66,10 @@ typedef struct _EFI_ACPI_TABLE_PROTOCOL EFI_ACPI_TABLE_PROTOCOL;
@retval EFI_OUT_OF_RESOURCES Insufficient resources exist to
complete the request.
@retval EFI_ACCESS_DENIED The table signature matches a table already
present in the system and platform policy
does not allow duplicate tables of this type.
**/
typedef
EFI_STATUS