[edk2-devel] [PATCH v3 26/35] OvmfPkg/XenPlatformPei: Ignore missing PCI Host Bridge on Xen PVH

[Anthony PERARD]

When the device ID of the host bridge is unknown, check if we are
running as a PVH guest as there is no PCI bus in that case.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard at citrix.com>
---

Notes:
    v3:
    - Remove use of XEN_PVH_PCI_HOST_BRIDGE_DEVICE_ID, and simply don't set
      PcdOvmfHostBridgePciDevId.
    
    v2:
    - Use new XEN_PVH_PCI_HOST_BRIDGE_DEVICE_ID macro

 OvmfPkg/XenPlatformPei/Platform.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/OvmfPkg/XenPlatformPei/Platform.c b/OvmfPkg/XenPlatformPei/Platform.c
index 52f6048ca4..b7fc30d2ee 100644
--- a/OvmfPkg/XenPlatformPei/Platform.c
+++ b/OvmfPkg/XenPlatformPei/Platform.c
@@ -272,6 +272,12 @@ MiscInitialization (
       AcpiEnBit  = ICH9_ACPI_CNTL_ACPI_EN;

       break;

     default:

+      if (XenPvhDetected ()) {

+        //

+        // There is no PCI bus in this case

+        //

+        return;

+      }

       DEBUG ((EFI_D_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",

         __FUNCTION__, mHostBridgeDevId));

       ASSERT (FALSE);

-- 
Anthony PERARD


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