mirror of https://github.com/acidanthera/audk.git
0dcd1b1b2a
InitRootBridge() in "OvmfPkg/PciHostBridgeDxe/PciHostBridge.c" passes the EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM allocation attribute to RootBridgeConstructor(); we should do the same here. From "MdePkg/Include/Protocol/PciHostBridgeResourceAllocation.h": /// If this bit is set, then the PCI Root Bridge does not support separate /// windows for Non-prefetchable and Prefetchable memory. A PCI bus driver /// needs to include requests for Prefetchable memory in the /// Non-prefetchable memory pool. Which implies that both the 32-bit and 64-bit prefetchable MMIO apertures should be marked empty. (The CreateRootBridge() function actually enforces this in "MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c".) Furthermore, since OvmfPkg/PciHostBridgeDxe does *not* set the EFI_PCI_HOST_BRIDGE_MEM64_DECODE allocation attribute: /// If this bit is set, then the PCI Root Bridge supports 64 bit memory /// windows. If this bit is not set, the PCI bus driver needs to include /// requests for 64 bit memory address in the corresponding 32 bit memory /// pool. we follow suit in the PciHostBridgeLib instance. In turn, the 64-bit MMIO apertures (both prefetchable and non-prefetchable) should be marked empty. MdeModulePkg/Bus/Pci/PciHostBridgeDxe enforces this too. (64-bit MMIO aperture support, based on yet more fw_cfg files, is a planned future improvement.) Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Marcel Apfelbaum <marcel@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> |
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|---|---|---|
| AppPkg | ||
| ArmPkg | ||
| ArmPlatformPkg | ||
| ArmVirtPkg | ||
| BaseTools | ||
| BeagleBoardPkg | ||
| Conf | ||
| CorebootModulePkg | ||
| CorebootPayloadPkg | ||
| CryptoPkg | ||
| DuetPkg | ||
| EdkCompatibilityPkg | ||
| EdkShellBinPkg | ||
| EdkShellPkg | ||
| EmbeddedPkg | ||
| EmulatorPkg | ||
| FatBinPkg | ||
| IntelFrameworkModulePkg | ||
| IntelFrameworkPkg | ||
| IntelFspPkg | ||
| IntelFspWrapperPkg | ||
| MdeModulePkg | ||
| MdePkg | ||
| NetworkPkg | ||
| Nt32Pkg | ||
| Omap35xxPkg | ||
| OptionRomPkg | ||
| OvmfPkg | ||
| PcAtChipsetPkg | ||
| PerformancePkg | ||
| QuarkPlatformPkg | ||
| QuarkSocPkg | ||
| SecurityPkg | ||
| ShellBinPkg | ||
| ShellPkg | ||
| SourceLevelDebugPkg | ||
| StdLib | ||
| StdLibPrivateInternalFiles | ||
| UefiCpuPkg | ||
| UnixPkg | ||
| Vlv2DeviceRefCodePkg | ||
| Vlv2TbltDevicePkg | ||
| .gitignore | ||
| BuildNotes2.txt | ||
| Edk2Setup.bat | ||
| Maintainers.txt | ||
| edksetup.bat | ||
| edksetup.sh | ||