Revision: 16900
http://sourceforge.net/p/edk2/code/16900
Author: lersek
Date: 2015-02-23 16:03:21 +0000 (Mon, 23 Feb 2015)
Log Message:
-----------
ArmVirtualizationPkg/PciHostBridgeDxe: IO space is emulated with MMIO
There is no IO space on ARM, and there are no special instructions that
access it. QEMU emulates the IO space for PCI devices with a special MMIO
range. We're ready to use it at this point, we just have to switch the
Io(Read|Write)(8|16|32) primitives to their MMIO counterparts, because in
"MdePkg/Library/BaseIoLibIntrinsic/IoLibArm.c", the IO primitives
correctly ASSERT (FALSE).
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <[email protected]>
Reviewed-by: Olivier Martin <[email protected]>
Modified Paths:
--------------
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c
Modified:
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c
===================================================================
---
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c
2015-02-23 16:03:16 UTC (rev 16899)
+++
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c
2015-02-23 16:03:21 UTC (rev 16900)
@@ -1008,13 +1008,13 @@
if (Write) {
switch (OperationWidth) {
case EfiPciWidthUint8:
- IoWrite8 ((UINTN)Address, *Uint8Buffer);
+ MmioWrite8 ((UINTN)Address, *Uint8Buffer);
break;
case EfiPciWidthUint16:
- IoWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
+ MmioWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
break;
case EfiPciWidthUint32:
- IoWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
+ MmioWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
break;
default:
//
@@ -1027,13 +1027,13 @@
} else {
switch (OperationWidth) {
case EfiPciWidthUint8:
- *Uint8Buffer = IoRead8 ((UINTN)Address);
+ *Uint8Buffer = MmioRead8 ((UINTN)Address);
break;
case EfiPciWidthUint16:
- *((UINT16 *)Uint8Buffer) = IoRead16 ((UINTN)Address);
+ *((UINT16 *)Uint8Buffer) = MmioRead16 ((UINTN)Address);
break;
case EfiPciWidthUint32:
- *((UINT32 *)Uint8Buffer) = IoRead32 ((UINTN)Address);
+ *((UINT32 *)Uint8Buffer) = MmioRead32 ((UINTN)Address);
break;
default:
//
------------------------------------------------------------------------------
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