From: "PierreGondois" <pierre.gondois@arm.com>
To: devel@edk2.groups.io
Cc: Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Zhiguang Liu <zhiguang.liu@intel.com>,
Jiewen Yao <jiewen.yao@intel.com>,
Jian J Wang <jian.j.wang@intel.com>,
Ard Biesheuvel <ardb+tianocore@kernel.org>,
Sami Mujawar <sami.mujawar@arm.com>, Kun Qin <kuqin12@gmail.com>
Subject: [edk2-devel] [PATCH v6 2/9] MdePkg: Add deprecated warning to BaseRngLibTimer
Date: Fri, 11 Aug 2023 16:33:03 +0200 [thread overview]
Message-ID: <20230811143310.55101-3-pierre.gondois@arm.com> (raw)
In-Reply-To: <20230811143310.55101-1-pierre.gondois@arm.com>
From: Pierre Gondois <pierre.gondois@arm.com>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4504
To keep the MdePkg self-contained and avoid dependencies on GUIDs
defined in other packages, the BaseRngLibTimer was moved to the
MdePkg.
Add a constructor to warn and request to use the MdeModulePkg
implementation.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Tested-by: Kun Qin <kun.qin@microsoft.com>
---
.../BaseRngLibTimerLib/BaseRngLibTimerLib.inf | 1 +
.../Library/BaseRngLibTimerLib/RngLibTimer.c | 22 +++++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf b/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
index f857290e823b..96c90db63f6f 100644
--- a/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
+++ b/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
@@ -23,6 +23,7 @@ [Defines]
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = RngLib
+ CONSTRUCTOR = BaseRngLibTimerConstructor
[Sources]
RngLibTimer.c
diff --git a/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c b/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c
index 980854d67b72..c4fdd1df68d3 100644
--- a/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c
+++ b/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c
@@ -13,6 +13,28 @@
#define DEFAULT_DELAY_TIME_IN_MICROSECONDS 10
+/**
+ This implementation is to be replaced by its MdeModulePkg copy.
+ The cause being that some GUIDs (gEdkiiRngAlgorithmUnSafe) cannot
+ be defined in the MdePkg.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+**/
+RETURN_STATUS
+EFIAPI
+BaseRngLibTimerConstructor (
+ VOID
+ )
+{
+ DEBUG ((
+ DEBUG_WARN,
+ "Warning: This BaseRngTimerLib implementation will be deprecated. "
+ "Please use the MdeModulePkg implementation equivalent.\n"
+ ));
+
+ return RETURN_SUCCESS;
+}
+
/**
Using the TimerLib GetPerformanceCounterProperties() we delay
for enough time for the PerformanceCounter to increment.
--
2.25.1
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next prev parent reply other threads:[~2023-08-11 14:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-11 14:33 [edk2-devel] [PATCH v6 0/9] SecurityPkg/MdePkg: Update RngLib GUID identification PierreGondois
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 1/9] MdeModulePkg: Duplicate BaseRngLibTimerLib to MdeModulePkg PierreGondois
2023-08-11 14:33 ` PierreGondois [this message]
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 3/9] SecurityPkg/SecurityPkg.dec: Move PcdCpuRngSupportedAlgorithm to MdePkg PierreGondois
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 4/9] MdePkg/DxeRngLib: Request raw algorithm instead of default PierreGondois
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 5/9] MdePkg/Rng: Add GUID to describe Arm Rndr Rng algorithms PierreGondois
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 6/9] MdeModulePkg/Rng: Add GUID to describe unsafe " PierreGondois
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 7/9] MdePkg/Rng: Add GetRngGuid() to RngLib PierreGondois
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 8/9] SecurityPkg/RngDxe: Use GetRngGuid() when probing RngLib PierreGondois
2023-08-11 14:33 ` [edk2-devel] [PATCH v6 9/9] SecurityPkg/RngDxe: Simplify Rng algorithm selection for Arm PierreGondois
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