OvmfPkg/QemuFwCfg: introduce FW_CFG_IO_DMA_ADDRESS, adapt the package

[mirror_edk2.git] / OvmfPkg / Library / QemuFwCfgLib / QemuFwCfgLib.c

diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
index d79d0a444ca714d7fd5832990772e7c77e693d4c..3dd55ba5042ea4f1ef28d1895b0a4497e0504c89 100644 (file)
--- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
+++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
@@ -94,8 +94,8 @@ InternalQemuFwCfgDmaBytes (
   //\r
   AccessHigh = (UINT32)RShiftU64 ((UINTN)&Access, 32);\r
   AccessLow  = (UINT32)(UINTN)&Access;\r
-  IoWrite32 (0x514, SwapBytes32 (AccessHigh));\r
-  IoWrite32 (0x518, SwapBytes32 (AccessLow));\r
+  IoWrite32 (FW_CFG_IO_DMA_ADDRESS,     SwapBytes32 (AccessHigh));\r
+  IoWrite32 (FW_CFG_IO_DMA_ADDRESS + 4, SwapBytes32 (AccessLow));\r
 \r
   //\r
   // Don't look at Access.Control before starting the transfer.\r