OvmfPkg/QemuFwCfg: introduce FW_CFG_IO_DMA_ADDRESS, adapt the package
Introduce the FW_CFG_IO_DMA_ADDRESS macro for IO Ports 0x514 and 0x518 (most significant and least significant halves of the DMA Address Register, respectively), and update all references in OvmfPkg. Cc: Jordan Justen <jordan.l.justen@intel.com> Suggested-by: Jordan Justen <jordan.l.justen@intel.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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@@ -94,8 +94,8 @@ InternalQemuFwCfgDmaBytes (
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//
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AccessHigh = (UINT32)RShiftU64 ((UINTN)&Access, 32);
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AccessLow = (UINT32)(UINTN)&Access;
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IoWrite32 (0x514, SwapBytes32 (AccessHigh));
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IoWrite32 (0x518, SwapBytes32 (AccessLow));
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IoWrite32 (FW_CFG_IO_DMA_ADDRESS, SwapBytes32 (AccessHigh));
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IoWrite32 (FW_CFG_IO_DMA_ADDRESS + 4, SwapBytes32 (AccessLow));
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//
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// Don't look at Access.Control before starting the transfer.
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