1 files changed, 43 insertions, 0 deletions
diff --git a/0040-MdePkg-X86UnitTestHost-set-rdrand-cpuid-bit.patch b/0040-MdePkg-X86UnitTestHost-set-rdrand-cpuid-bit.patch
new file mode 100644
index 0000000..d32e748
--- /dev/null
+++ b/0040-MdePkg-X86UnitTestHost-set-rdrand-cpuid-bit.patch
@@ -0,0 +1,43 @@
+From 320207a3df995771af36639c7bdf89c4203cf1c2 Mon Sep 17 00:00:00 2001
+From: Gerd Hoffmann <kraxel@redhat.com>
+Date: Fri, 14 Jun 2024 11:45:53 +0200
+Subject: [PATCH] MdePkg/X86UnitTestHost: set rdrand cpuid bit
+
+Set the rdrand feature bit when faking cpuid for host test cases.
+Needed to make the CryptoPkg test cases work.
+
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+(cherry picked from commit 5e776299a2604b336a947e68593012ab2cc16eb4)
+---
+ MdePkg/Library/BaseLib/X86UnitTestHost.c | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/MdePkg/Library/BaseLib/X86UnitTestHost.c b/MdePkg/Library/BaseLib/X86UnitTestHost.c
+index 8ba4f54a38..7f7276f7f4 100644
+--- a/MdePkg/Library/BaseLib/X86UnitTestHost.c
++++ b/MdePkg/Library/BaseLib/X86UnitTestHost.c
+@@ -66,6 +66,15 @@ UnitTestHostBaseLibAsmCpuid (
+   OUT     UINT32  *Edx   OPTIONAL
+   )
+ {
++  UINT32  RetEcx;
++
++  RetEcx = 0;
++  switch (Index) {
++    case 1:
++      RetEcx |= BIT30; /* RdRand */
++      break;
++  }
++
+   if (Eax != NULL) {
+     *Eax = 0;
+   }
+@@ -75,7 +84,7 @@ UnitTestHostBaseLibAsmCpuid (
+   }
+ 
+   if (Ecx != NULL) {
+-    *Ecx = 0;
++    *Ecx = RetEcx;
+   }
+ 
+   if (Edx != NULL) {