OvmfPkg/Bhyve: build platform info HOB

Copy the function BuildPlatformInfoHob() from OvmfPkg/PlatformPei.

QemuFwCfgLib expect this HOB to be present, or fails to do anything.
InternalQemuFwCfgIsAvailable() from QemuFwCfgPeiLib module will not
check if the HOB is actually present for example and try to use a NULL
pointer.

Fixes: cda98df162 ("OvmfPkg/QemuFwCfgLib: remove mQemuFwCfgSupported + mQemuFwCfgDmaSupported")
Signed-off-by: Corvin Köhne <corvink@FreeBSD.org>
Reviewed-by: Rebecca Cran <rebecca@bsdio.com>

OvmfPkg/Bhyve/PlatformPei/Platform.c

@@ -17,6 +17,7 @@
 //
 // The Library classes this module consumes
 //
+#include <Library/BaseMemoryLib.h>
 #include <Library/BaseLib.h>
 #include <Library/DebugLib.h>
 #include <Library/HobLib.h>
@@ -27,6 +28,7 @@
 #include <Library/PciLib.h>
 #include <Library/PeimEntryPoint.h>
 #include <Library/PeiServicesLib.h>
+#include <Library/PlatformInitLib.h>
 #include <Library/ResourcePublicationLib.h>
 #include <Guid/MemoryTypeInformation.h>
 #include <Ppi/MasterBootMode.h>
@@ -534,6 +536,24 @@ MaxCpuCountInitialization (
     ));
 }
 
+/**
+ * @brief Builds PlatformInfo Hob
+ */
+STATIC
+EFI_HOB_PLATFORM_INFO *
+BuildPlatformInfoHob (
+  VOID
+  )
+{
+  EFI_HOB_PLATFORM_INFO  PlatformInfoHob;
+  EFI_HOB_GUID_TYPE      *GuidHob;
+
+  ZeroMem (&PlatformInfoHob, sizeof PlatformInfoHob);
+  BuildGuidDataHob (&gUefiOvmfPkgPlatformInfoGuid, &PlatformInfoHob, sizeof (EFI_HOB_PLATFORM_INFO));
+  GuidHob = GetFirstGuidHob (&gUefiOvmfPkgPlatformInfoGuid);
+  return (EFI_HOB_PLATFORM_INFO *)GET_GUID_HOB_DATA (GuidHob);
+}
+
 /**
   Perform Platform PEI initialization.
 
@@ -551,6 +571,7 @@ InitializePlatform (
   )
 {
   DEBUG ((DEBUG_INFO, "Platform PEIM Loaded\n"));
+  BuildPlatformInfoHob ();
 
   //
   // Initialize Local APIC Timer hardware and disable Local APIC Timer

OvmfPkg/Bhyve/PlatformPei/PlatformPei.inf

@@ -44,6 +44,7 @@
 
 [Guids]
   gEfiMemoryTypeInformationGuid
+  gUefiOvmfPkgPlatformInfoGuid
 
 [LibraryClasses]
   BaseLib