From: Benjamin Doron <benjamin.doron@9elements.com>

Uses CPU RDRAND support and installs the EfiRngProtocol.
The protocol may be used by iPXE or the Linux kernel to gather entropy.

Cc: Guo Dong <guo.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Sean Rhodes <sean@starlabs.systems>
Cc: James Lu <james.lu@intel.com>
Cc: Gua Guo <gua.guo@intel.com>
Signed-off-by: Benjamin Doron <benjamin.doron@9elements.com>
---
 UefiPayloadPkg/UefiPayloadPkg.dsc | 3 +++
 UefiPayloadPkg/UefiPayloadPkg.fdf | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/UefiPayloadPkg/UefiPayloadPkg.dsc b/UefiPayloadPkg/UefiPayloadPkg.dsc
index 1e803ba01567..486af2396731 100644
--- a/UefiPayloadPkg/UefiPayloadPkg.dsc
+++ b/UefiPayloadPkg/UefiPayloadPkg.dsc
@@ -634,6 +634,9 @@
   MdeModulePkg/Universal/SecurityStubDxe/SecurityStubDxe.inf
 !endif
   UefiCpuPkg/CpuDxe/CpuDxe.inf
+!if $(CPU_RNG_ENABLE) == TRUE
+  SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.inf
+!endif
   MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
 !if $(BOOTSPLASH_IMAGE)
   MdeModulePkg/Logo/LogoDxe.inf
diff --git a/UefiPayloadPkg/UefiPayloadPkg.fdf b/UefiPayloadPkg/UefiPayloadPkg.fdf
index f8c2aa8c4a02..53add65a6a40 100644
--- a/UefiPayloadPkg/UefiPayloadPkg.fdf
+++ b/UefiPayloadPkg/UefiPayloadPkg.fdf
@@ -157,6 +157,9 @@ INF CryptoPkg/Driver/CryptoDxe.inf
 INF MdeModulePkg/Universal/SecurityStubDxe/SecurityStubDxe.inf
 !endif
 INF UefiCpuPkg/CpuDxe/CpuDxe.inf
+!if $(CPU_RNG_ENABLE) == TRUE
+INF SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.inf
+!endif

 INF RuleOverride = UI MdeModulePkg/Application/UiApp/UiApp.inf
 INF MdeModulePkg/Application/BootManagerMenuApp/BootManagerMenuApp.inf
--
2.39.2