Does this work?

Author: kuqin12

Platforms/QemuSbsaPkg/PlatformBuild.py

@@ -321,6 +321,27 @@ def SetPlatformEnvAfterTarget(self):
         return 0
 
     def PlatformPreBuild(self):
+        need_setup = False
+        # Check to see if the poetry for TFA is setup, if not, do it.
+        outstream = StringIO()
+
+        # If we are not in a virtual environment, we can build the firmware directly.
+        ret = RunCmd("poetry", "env list --full-path", workingdir=self.env.GetValue("ARM_TFA_PATH"), outstream=outstream, environ=cached_enivron)
+        if ret != 0:
+            # it is not setup
+            need_setup = True
+        elif outstream.getvalue() == "":
+            # it is not setup
+            need_setup = True
+
+        need_setup = True
+
+        if need_setup:
+            # okay, need to install it
+            ret = RunCmd("poetry", "--verbose install", workingdir=self.env.GetValue("ARM_TFA_PATH"), environ=cached_enivron)
+            if ret != 0:
+                return ret
+
         return 0
 
     #