AMD AMD-K6-2/500AFX Data Sheet - Page 236
SMM Revision Identifier, Bit 17
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AMD-K6®-2 Processor Data Sheet Preliminary Information 21850J/0-February 2000 Table 43. SMM State-Save Area Map (continued) Address Offset Contents Saved FF28h ES Base FF24h ES Limit FF20h - FF1Ch - FF18h - FF14h CR2 FF10h CR4 FF0Ch I/O Restart ESI* FF08h I/O Restart ECX* FF04h I/O Restart EDI* FF02h HALT Restart Slot FF00h I/O Trap Restart Slot FEFCh SMM RevID FEF8h SMM Base FEF7h-FE00h - Notes: - No data dump at that address * Only contains information if SMI# is asserted during a valid I/O bus cycle. 10.4 SMM Revision Identifier The SMM revision identifier at offset FEFCh in the SMM state-save area specifies the version of SMM and the extensions that are available on the processor. The SMM revision identifier fields are as follows: s Bits 31-18-Reserved s Bit 17-SMM base address relocation (1 = enabled) s Bit 16-I/O trap restart (1 = enabled) s Bits 15-0- SMM revision level for the AMD-K6-2 processor = 0002h 216 System Management Mode (SMM) Chapter 10