From 416813753726bbf7c962c423246633cd703ae7c5 Mon Sep 17 00:00:00 2001
From: Matthew Carlson <macarl@microsoft.com>
Date: Fri, 31 Jul 2020 13:41:53 -0700
Subject: [PATCH] ArmVirtPkg: Add RngLib based on TimerLib for CryptoPkg

Updates the DSC for the ArmVirtPkg platform to add a RngLib that uses the
TimerLib. This is due to a later change that adds TimerLib as a dependency
for OpenSSL. The TimerLib based RngLib mimics the behavior of OpenSSL
previously and it is recommended to switch to a better source of
entropy than the system's performance counter.

Ref: https://github.com/tianocore/edk2/pull/845
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1871

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Leif Lindholm <leif@nuviainc.com>

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Matthew Carlson <matthewfcarlson@gmail.com>
---
 ArmVirtPkg/ArmVirt.dsc.inc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ArmVirtPkg/ArmVirt.dsc.inc b/ArmVirtPkg/ArmVirt.dsc.inc
index cf44fc7389..cb3845d2bd 100644
--- a/ArmVirtPkg/ArmVirt.dsc.inc
+++ b/ArmVirtPkg/ArmVirt.dsc.inc
@@ -160,6 +160,7 @@
   OpensslLib|CryptoPkg/Library/OpensslLib/OpensslLibCrypto.inf
 !endif
   BaseCryptLib|CryptoPkg/Library/BaseCryptLib/BaseCryptLib.inf
+  RngLib|MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
 
   #
   # Secure Boot dependencies