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IntelFrameworkModulePkg/LegacyBios: Fix legacy serial redirection bug 

Upon booting to a legacy OS, LegacyBios driver is responsible to
initialize the BDA region with the correct COM port base address.
But the current logic to get the COM port base address from IsaIo
instance is not correct.
The patch fixes this bug.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
This commit is contained in:
Ruiyu Ni 2016-11-08 10:25:46 +08:00
parent 4ab04a72f5
commit 83155d7eb4
1 changed files with 1 additions and 1 deletions
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2
IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c
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@ -354,7 +354,7 @@ LegacyBiosBuildSioDataFromIsaIo (
//
for (ChildIndex = 0; ChildIndex < EntryCount; ChildIndex++) {
if ((OpenInfoBuffer[ChildIndex].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
Status = gBS->HandleProtocol (OpenInfoBuffer[ChildIndex].AgentHandle, &gEfiSerialIoProtocolGuid, (VOID **) &SerialIo);
Status = gBS->HandleProtocol (OpenInfoBuffer[ChildIndex].ControllerHandle, &gEfiSerialIoProtocolGuid, (VOID **) &SerialIo);
if (!EFI_ERROR (Status)) {
SioSerial = &SioPtr->Serial[ResourceList->Device.UID];
SioSerial->Address = (UINT16) IoResource->StartRange;