tree e0e6be3a1cf925d5643d6861740d169d6917a6e6
parent 66c69871e7ea729aa46ac288c5ed4b501db7e091
author Ard Biesheuvel <ardb@kernel.org> 1715618899 +0200
committer mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> 1716565732 +0000

ArmVirtPkg/ArmVirtQemu: Add RngDxe driver

Add the RngDxe driver to the build, backed by either RNDR or TRNG, one
of which is expected to be available in most cases:
- RNDR is implemented by the 'max' CPU that QEMU implements in TCG mode
- TRNG is implemented by the KVM hypervisor, which backs QEMU's 'host'
  CPU

Other TCG modes (e.g., the 'cortex-a*' CPUs) implement neither, which
should prevent the RngDxe driver from dispatching entirely, resulting
in the same situation as before.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>

Committed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Doug Flick [MSFT] <doug.edk2@gmail.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>