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>

diff --git a/ArmVirtPkg/ArmVirt.dsc.inc b/ArmVirtPkg/ArmVirt.dsc.inc
index cf44fc73890b7cbfe58f1ad4f6408aeeb9837a09..cb3845d2bd374bb1a64ca5084bca10facb8665c9 100644 (file)
--- a/ArmVirtPkg/ArmVirt.dsc.inc
+++ b/ArmVirtPkg/ArmVirt.dsc.inc
@@ -160,6 +160,7 @@
   OpensslLib|CryptoPkg/Library/OpensslLib/OpensslLibCrypto.inf\r
 !endif\r
   BaseCryptLib|CryptoPkg/Library/BaseCryptLib/BaseCryptLib.inf\r
+  RngLib|MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf\r
 \r
   #\r
   # Secure Boot dependencies\r