OvmfPkg: Handle Cloud Hypervisor host bridge

Handle things differently when the detected host bridge matches the
Cloud Hypervisor PCI host bridge identifier.

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

OvmfPkg/Include/IndustryStandard/CloudHv.h

@@ -0,0 +1,36 @@
+/** @file
+  Various defines related to Cloud Hypervisor
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __CLOUDHV_H__
+#define __CLOUDHV_H__
+
+//
+// Host Bridge Device ID
+//
+#define CLOUDHV_DEVICE_ID  0x0d57
+
+//
+// ACPI timer address
+//
+#define CLOUDHV_ACPI_TIMER_IO_ADDRESS  0xb008
+
+//
+// ACPI shutdown device address
+//
+#define CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS  0x03c0
+
+//
+// 32-bit MMIO memory hole base address
+//
+#define CLOUDHV_MMIO_HOLE_ADDRESS  0xc0000000
+
+//
+// 32-bit MMIO memory hole size
+//
+#define CLOUDHV_MMIO_HOLE_SIZE  0x38000000
+
+#endif // __CLOUDHV_H__

OvmfPkg/Include/OvmfPlatforms.h

@@ -16,6 +16,7 @@
 #include <IndustryStandard/I440FxPiix4.h>
 #include <IndustryStandard/Bhyve.h>
 #include <IndustryStandard/Microvm.h>
+#include <IndustryStandard/CloudHv.h>
 
 //
 // OVMF Host Bridge DID Address