Set PcdOvmfHostBridgePciDevId to MICROVM_PSEUDO_DEVICE_ID.
Return and skip i440fx/q35 chipset tweaks.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3599
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
---
 OvmfPkg/PlatformPei/Platform.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c
index dedd7ff1a8e5..039b19dfb187 100644
--- a/OvmfPkg/PlatformPei/Platform.c
+++ b/OvmfPkg/PlatformPei/Platform.c
@@ -365,6 +365,12 @@ MiscInitialization (
       AcpiCtlReg = POWER_MGMT_REGISTER_Q35 (ICH9_ACPI_CNTL);
       AcpiEnBit  = ICH9_ACPI_CNTL_ACPI_EN;
       break;
+    case MICROVM_PSEUDO_DEVICE_ID:
+      DEBUG ((DEBUG_INFO, "%a: microvm\n", __FUNCTION__));
+      PcdStatus = PcdSet16S (PcdOvmfHostBridgePciDevId,
+                             MICROVM_PSEUDO_DEVICE_ID);
+      ASSERT_RETURN_ERROR (PcdStatus);
+      return;
     default:
       DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
         __FUNCTION__, mHostBridgeDevId));
-- 
2.31.1



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