By now OVMF makes MdeModulePkg/Bus/Pci/PciHostBridgeDxe go through MMCONFIG (when running on Q35). Enable the driver to address each B/D/F's config space up to and including offset 0xFFF.
Cc: Gabriel Somlo <[email protected]> Cc: Gerd Hoffmann <[email protected]> Cc: Jordan Justen <[email protected]> Cc: Marcel Apfelbaum <[email protected]> Cc: Michał Zegan <[email protected]> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <[email protected]> Reviewed-by: Jordan Justen <[email protected]> --- OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf | 1 + OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf index 5467fff8aa15..bbec74645c83 100644 --- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf +++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf @@ -51,3 +51,4 @@ [Pcd] gUefiOvmfPkgTokenSpaceGuid.PcdPciIoSize gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Base gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Size + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c index 582e87dd9ac0..3e02778492a8 100644 --- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c +++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c @@ -16,6 +16,7 @@ #include <PiDxe.h> #include <IndustryStandard/Pci.h> +#include <IndustryStandard/Q35MchIch9.h> #include <Protocol/PciHostBridgeResourceAllocation.h> #include <Protocol/PciRootBridgeIo.h> @@ -139,7 +140,8 @@ InitRootBridge ( RootBus->Mem.Limit = PcdGet64 (PcdPciMmio32Base) + (PcdGet64 (PcdPciMmio32Size) - 1); - RootBus->NoExtendedConfigSpace = TRUE; + RootBus->NoExtendedConfigSpace = (PcdGet16 (PcdOvmfHostBridgePciDevId) != + INTEL_Q35_MCH_DEVICE_ID); DevicePath = AllocateCopyPool (sizeof mRootBridgeDevicePathTemplate, &mRootBridgeDevicePathTemplate); -- 1.8.3.1 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
