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Detect some unsupported cases when save boot script, then return error early.

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1. PciCfg Read/Write doesn't support UINT64 width.
2. PciCfg2 Segment must be zero.

Move CheckParameters () to BootScriptSave.c to check parameter early.
Add code for EfiSmbusBWBRProcessCall operation, and let the SmbusLib instance to decide if it is supported or not.

Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14018 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lzeng14
2012-12-24 06:58:13 +00:00
parent f8c075d112
commit 2a956f7490
2 changed files with 186 additions and 141 deletions
Download Patch File Download Diff File Expand all files Collapse all files

150
MdeModulePkg/Library/PiDxeS3BootScriptLib/BootScriptExecute.c
View File

@ -15,107 +15,6 @@
**/
#include "InternalBootScriptLib.h"
/**
Checks the parameter of SmbusExecute().
This function checks the input parameters of SmbusExecute(). If the input parameters are valid
for certain SMBus bus protocol, it will return EFI_SUCCESS; otherwise, it will return certain
error code based on the input SMBus bus protocol.
@param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length,
and PEC.
@param Operation Signifies which particular SMBus hardware protocol instance that
it will use to execute the SMBus transactions. This SMBus
hardware protocol is defined by the SMBus Specification and is
not related to EFI.
@param Length Signifies the number of bytes that this operation will do. The
maximum number of bytes can be revision specific and operation
specific. This field will contain the actual number of bytes that
are executed for this operation. Not all operations require this
argument.
@param Buffer Contains the value of data to execute to the SMBus slave device.
Not all operations require this argument. The length of this
buffer is identified by Length.
@retval EFI_SUCCESS All the parameters are valid for the corresponding SMBus bus
protocol.
@retval EFI_INVALID_PARAMETER Operation is not defined in EFI_SMBUS_OPERATION.
@retval EFI_INVALID_PARAMETER Length/Buffer is NULL for operations except for EfiSmbusQuickRead
and EfiSmbusQuickWrite. Length is outside the range of valid
values.
@retval EFI_UNSUPPORTED The SMBus operation or PEC is not supported.
@retval EFI_BUFFER_TOO_SMALL Buffer is not sufficient for this operation.
**/
EFI_STATUS
CheckParameters (
IN UINTN SmBusAddress,
IN EFI_SMBUS_OPERATION Operation,
IN OUT UINTN *Length,
IN OUT VOID *Buffer
)
{
EFI_STATUS Status;
UINTN RequiredLen;
EFI_SMBUS_DEVICE_COMMAND Command;
BOOLEAN PecCheck;
Command = SMBUS_LIB_COMMAND (SmBusAddress);
PecCheck = SMBUS_LIB_PEC (SmBusAddress);
//
// Set default value to be 2:
// for SmbusReadWord, SmbusWriteWord and SmbusProcessCall.
//
RequiredLen = 2;
Status = EFI_SUCCESS;
switch (Operation) {
case EfiSmbusQuickRead:
case EfiSmbusQuickWrite:
if (PecCheck || Command != 0) {
return EFI_UNSUPPORTED;
}
break;
case EfiSmbusReceiveByte:
case EfiSmbusSendByte:
if (Command != 0) {
return EFI_UNSUPPORTED;
}
//
// Cascade to check length parameter.
//
case EfiSmbusReadByte:
case EfiSmbusWriteByte:
RequiredLen = 1;
//
// Cascade to check length parameter.
//
case EfiSmbusReadWord:
case EfiSmbusWriteWord:
case EfiSmbusProcessCall:
if (Buffer == NULL || Length == NULL) {
return EFI_INVALID_PARAMETER;
} else if (*Length < RequiredLen) {
Status = EFI_BUFFER_TOO_SMALL;
}
*Length = RequiredLen;
break;
case EfiSmbusReadBlock:
case EfiSmbusWriteBlock:
if ((Buffer == NULL) ||
(Length == NULL) ||
(*Length < MIN_SMBUS_BLOCK_LEN) ||
(*Length > MAX_SMBUS_BLOCK_LEN)) {
return EFI_INVALID_PARAMETER;
}
break;
case EfiSmbusBWBRProcessCall:
return EFI_UNSUPPORTED;
default:
return EFI_INVALID_PARAMETER;
}
return Status;
}
/**
Executes an SMBus operation to an SMBus controller. Returns when either the command has been
executed or an error is encountered in doing the operation.
@ -166,14 +65,8 @@ SmbusExecute (
)
{
EFI_STATUS Status;
UINTN WorkBufferLen;
UINT8 WorkBuffer[MAX_SMBUS_BLOCK_LEN];
Status = CheckParameters (SmbusAddress, Operation, Length, Buffer);
if (EFI_ERROR (Status)) {
return Status;
}
switch (Operation) {
case EfiSmbusQuickRead:
DEBUG ((EFI_D_INFO, "EfiSmbusQuickRead - 0x%08x\n", SmbusAddress));
@ -185,15 +78,15 @@ SmbusExecute (
break;
case EfiSmbusReceiveByte:
DEBUG ((EFI_D_INFO, "EfiSmbusReceiveByte - 0x%08x\n", SmbusAddress));
*(UINT8 *) Buffer = SmBusReceiveByte (SmbusAddress, &Status);
SmBusReceiveByte (SmbusAddress, &Status);
break;
case EfiSmbusSendByte:
DEBUG ((EFI_D_INFO, "EfiSmbusReceiveByte - 0x%08x (0x%02x)\n", SmbusAddress, (UINTN)*(UINT8 *) Buffer));
DEBUG ((EFI_D_INFO, "EfiSmbusSendByte - 0x%08x (0x%02x)\n", SmbusAddress, (UINTN)*(UINT8 *) Buffer));
SmBusSendByte (SmbusAddress, *(UINT8 *) Buffer, &Status);
break;
case EfiSmbusReadByte:
DEBUG ((EFI_D_INFO, "EfiSmbusReadByte - 0x%08x\n", SmbusAddress));
*(UINT8 *) Buffer = SmBusReadDataByte (SmbusAddress, &Status);
SmBusReadDataByte (SmbusAddress, &Status);
break;
case EfiSmbusWriteByte:
DEBUG ((EFI_D_INFO, "EfiSmbusWriteByte - 0x%08x (0x%02x)\n", SmbusAddress, (UINTN)*(UINT8 *) Buffer));
@ -201,41 +94,30 @@ SmbusExecute (
break;
case EfiSmbusReadWord:
DEBUG ((EFI_D_INFO, "EfiSmbusReadWord - 0x%08x\n", SmbusAddress));
*(UINT16 *) Buffer = SmBusReadDataWord (SmbusAddress, &Status);
SmBusReadDataWord (SmbusAddress, &Status);
break;
case EfiSmbusWriteWord:
DEBUG ((EFI_D_INFO, "EfiSmbusWriteByte - 0x%08x (0x%04x)\n", SmbusAddress, (UINTN)*(UINT16 *) Buffer));
DEBUG ((EFI_D_INFO, "EfiSmbusWriteWord - 0x%08x (0x%04x)\n", SmbusAddress, (UINTN)*(UINT16 *) Buffer));
SmBusWriteDataWord (SmbusAddress, *(UINT16 *) Buffer, &Status);
break;
case EfiSmbusProcessCall:
DEBUG ((EFI_D_INFO, "EfiSmbusProcessCall - 0x%08x (0x%04x)\n", SmbusAddress, (UINTN)*(UINT16 *) Buffer));
*(UINT16 *) Buffer = SmBusProcessCall (SmbusAddress, *(UINT16 *) Buffer, &Status);
SmBusProcessCall (SmbusAddress, *(UINT16 *) Buffer, &Status);
break;
case EfiSmbusReadBlock:
DEBUG ((EFI_D_INFO, "EfiSmbusReadBlock - 0x%08x\n", SmbusAddress));
WorkBufferLen = SmBusReadBlock (SmbusAddress, WorkBuffer, &Status);
if (!EFI_ERROR (Status)) {
//
// Read block transaction is complete successfully, and then
// check whether the output buffer is large enough.
//
if (*Length >= WorkBufferLen) {
CopyMem (Buffer, WorkBuffer, WorkBufferLen);
} else {
Status = EFI_BUFFER_TOO_SMALL;
}
*Length = WorkBufferLen;
}
SmBusReadBlock (SmbusAddress, WorkBuffer, &Status);
break;
case EfiSmbusWriteBlock:
DEBUG ((EFI_D_INFO, "EfiSmbusWriteBlock - 0x%08x (0x%04x)\n", SmbusAddress, (UINTN)*(UINT16 *) Buffer));
SmBusWriteBlock ((SmbusAddress + SMBUS_LIB_ADDRESS (0, 0, (*Length), FALSE)) , Buffer, &Status);
DEBUG ((EFI_D_INFO, "EfiSmbusWriteBlock - 0x%08x\n", SmbusAddress));
SmBusWriteBlock ((SmbusAddress + SMBUS_LIB_ADDRESS (0, 0, (*Length), FALSE)), Buffer, &Status);
break;
case EfiSmbusBWBRProcessCall:
//
// BUGBUG: Should this case be handled?
//
DEBUG ((EFI_D_INFO, "EfiSmbusBWBRProcessCall - 0x%08x\n", SmbusAddress));
SmBusBlockProcessCall ((SmbusAddress + SMBUS_LIB_ADDRESS (0, 0, (*Length), FALSE)), Buffer, WorkBuffer, &Status);
break;
default:
return EFI_INVALID_PARAMETER;
}
return Status;
@ -766,7 +648,8 @@ BootScriptExecuteMemoryWrite (
@retval EFI_SUCCESS The read succeed.
@retval EFI_INVALID_PARAMETER if Width is not defined
@note A known Limitations in the implementation which is 64bits operations are not supported.
**/
EFI_STATUS
ScriptPciCfgRead (
@ -851,7 +734,8 @@ ScriptPciCfgRead (
@retval EFI_SUCCESS The write succeed.
@retval EFI_INVALID_PARAMETER if Width is not defined
@note A known Limitations in the implementation which is 64bits operations are not supported.
**/
EFI_STATUS
ScriptPciCfgWrite (