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Device (TPM), help with removing its code from DSDT
Just found out that the TPM device is a rarely used security feature that is part of some Intel chipsets, and doesn't seem to be used at all by OSX/Apple.
TPMM and TPMA look to be directly related to TPM, so I see no problem in removing them as they only appear in the code below. Code:
OperationRegion (TPMM, SystemMemory, 0xFED40000, One) Field (TPMM, AnyAcc, NoLock, Preserve) { TPMA, 8 } Scope (\_SB.PCI0.LPCB) { Device (TPM) { Name (_HID, EisaId ("PNP0C31")) Name (_UID, One) Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadOnly, 0xFED40000, // Address Base 0x00005000, // Address Length ) }) Method (_STA, 0, NotSerialized) { If (LEqual (TPMA, 0xFF)) { Return (Zero) } Else { If (TPME) { Return (0x0F) } Else { Return (0x0B) } } } } Code:
IndexField (CMSI, CMSD, ByteAcc, NoLock, Preserve) { Offset (0x6E), WAS4, 8, OSTY, 7, OSEF, 1, Offset (0x7D), HPEE, 1, Offset (0x7E), , 2, MSEP, 1, , 1, TPME, 1, , 1, KBEP, 1, MSAR, 1 } What do the experts suggest, and has anyone else come across the TMP device in their DSDT and removed it? Here is my DSDT file, for those interested: Last edited by Drule; 08-22-2010 at 11:51 AM. |
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