From: Yan Zhang zhangyan81@huawei.com

Assign valid value to AddressTranslationOffset to support address translation between domains of CPU and PCIe, which is need by GOP to enable frame buffer.

This patch fix the bug: Kernel (4.12, without the vga driver) boot hang with kernel panic while kernel accesses UEFI GOP frame buffer.

Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Yan Zhang zhangyan81@huawei.com Signed-off-by: Ming Huang huangming23@huawei.com Signed-off-by: Heyi Guo heyi.guo@linaro.org --- Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c index b57bd51..55b80aa 100644 --- a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c +++ b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c @@ -2316,6 +2316,7 @@ RootBridgeIoConfiguration ( } Configuration.SpaceDesp[Index].AddrRangeMax = Configuration.SpaceDesp[Index].AddrRangeMin + PrivateData->ResAllocNode[Index].Length - 1; Configuration.SpaceDesp[Index].AddrLen = PrivateData->ResAllocNode[Index].Length; + Configuration.SpaceDesp[Index].AddrTranslationOffset = PrivateData->MemBase - PrivateData->PciRegionBase; } }