The bus aperture is copied verbatim from InitRootBridge() [OvmfPkg/PciHostBridgeDxe/PciHostBridge.c].
The IO and 32-bit MMIO apertures are matched to PlatformPei's settings. PciHostBridgeLibDxe expects PciHostBridgeLib instances to advertize the exact apertures. Cc: Jordan Justen <jordan.l.jus...@intel.com> Cc: Ruiyu Ni <ruiyu...@intel.com> Cc: Marcel Apfelbaum <mar...@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <ler...@redhat.com> --- OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf | 6 ++++++ OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c | 8 ++++++++ 2 files changed, 14 insertions(+) diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf index 096d728f3c61..e95ebfdc9326 100644 --- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf +++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf @@ -44,3 +44,9 @@ [LibraryClasses] MemoryAllocationLib PciLib QemuFwCfgLib + +[Pcd] + gUefiOvmfPkgTokenSpaceGuid.PcdPciIoBase + gUefiOvmfPkgTokenSpaceGuid.PcdPciIoSize + gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Base + gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Size diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c index 25849c1f51c5..07f7048f8d29 100644 --- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c +++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c @@ -95,6 +95,14 @@ InitRootBridge ( RootBus->MemAbove4G.Base = 0; RootBus->MemAbove4G.Limit = 0; + RootBus->Bus.Base = RootBusNumber; + RootBus->Bus.Limit = MaxSubBusNumber; + RootBus->Io.Base = PcdGet64 (PcdPciIoBase); + RootBus->Io.Limit = PcdGet64 (PcdPciIoBase) + (PcdGet64 (PcdPciIoSize) - 1); + RootBus->Mem.Base = PcdGet64 (PcdPciMmio32Base); + RootBus->Mem.Limit = PcdGet64 (PcdPciMmio32Base) + + (PcdGet64 (PcdPciMmio32Size) - 1); + return EFI_OUT_OF_RESOURCES; } -- 1.8.3.1 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
