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OvmfPkg/QemuFwCfg: introduce FW_CFG_IO_DATA, adapt the package 

Introduce the FW_CFG_IO_DATA macro for IO Port 0x511 (the Data Register),
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>
This commit is contained in:
Laszlo Ersek 2017-02-21 14:43:00 +01:00
parent 21ca2f28e6
commit 509e6b5a03
3 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
OvmfPkg/Include/IndustryStandard/QemuFwCfg.h
View File

@ -47,6 +47,7 @@
// platforms (Ia32 and X64).
//
#define FW_CFG_IO_SELECTOR 0x510
#define FW_CFG_IO_DATA 0x511
//
// Numerically defined keys.

6
OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
View File

@ -135,7 +135,7 @@ InternalQemuFwCfgReadBytes (
InternalQemuFwCfgDmaBytes ((UINT32)Size, Buffer, FW_CFG_DMA_CTL_READ);
return;
}
IoReadFifo8 (0x511, Size, Buffer);
IoReadFifo8 (FW_CFG_IO_DATA, Size, Buffer);
}
@ -187,7 +187,7 @@ QemuFwCfgWriteBytes (
InternalQemuFwCfgDmaBytes ((UINT32)Size, Buffer, FW_CFG_DMA_CTL_WRITE);
return;
}
IoWriteFifo8 (0x511, Size, Buffer);
IoWriteFifo8 (FW_CFG_IO_DATA, Size, Buffer);
}
}
@ -230,7 +230,7 @@ QemuFwCfgSkipBytes (
//
while (Size > 0) {
ChunkSize = MIN (Size, sizeof SkipBuffer);
IoReadFifo8 (0x511, ChunkSize, SkipBuffer);
IoReadFifo8 (FW_CFG_IO_DATA, ChunkSize, SkipBuffer);
Size -= ChunkSize;
}
}

2
OvmfPkg/SmmControl2Dxe/SmiFeatures.c
View File

@ -303,7 +303,7 @@ SaveSmiFeatures (
S3SaveState, // This
EFI_BOOT_SCRIPT_IO_POLL_OPCODE, // OpCode
EfiBootScriptWidthUint8, // Width
(UINT64)(UINTN)0x511, // Address
(UINT64)(UINTN)FW_CFG_IO_DATA, // Address
&FeaturesOkData, // Data
&FeaturesOkMask, // DataMask
MAX_UINT64 // Delay