tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

OvmfPkg/PlatformBootManagerLib: Handle the absence of PCI bus on Xen PVH 

When running in a Xen PVH guest, there's nothing to do in
PciAcpiInitialization() because there isn't any PCI bus. When the Host
Bridge DID isn't recognised, simply continue. (The value of
PcdOvmfHostBridgePciDevId would be 0 because it isn't set.)

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190813113119.14804-29-anthony.perard@citrix.com>
This commit is contained in:
Anthony PERARD 2019-08-13 12:31:12 +01:00 committed by Laszlo Ersek
parent bc5df19872
commit ad256f9540
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
View File

@ -1208,6 +1208,12 @@ PciAcpiInitialization (
PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x6b), 0x0b); // H
break;
default:
if (XenDetected ()) {
//
// 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);