Datasheet

Datasheet, Volume 2 165
Processor Integrated I/O (IIO) Configuration Registers
3.6.1.3 TXT.THREADS.EXISTS—Intel
®
TXT Thread Exists Register
This register is used to read which threads are registered as Intel TXT capable.
General Behavioral Rules:
• This is a read-only register, so writes to this register will be ignored.
• This register is available in both the Public and Private Intel TXT configuration
spaces.
3.6.1.4 TXT.THREADS.JOIN—Intel
®
TXT Threads Join Register
This register is used to count the threads that have joined the Intel TXT environment.
General Behavioral Rules:
• This is a read-only register, so writes to this register will be ignored.
• This register is available in both the Public and Private Intel TXT configuration
spaces.
Base: TXT_TXT Offset: 0010h
Base: TXT_PR Offset: 0010h
Base: TXT_PB Offset: 0010h
Bit Attr Default Description
63:0 RO 0h
TXT.THREADS.EXISTS[63:0]
This bit field indicates the threads that exit in the platform. Each thread sets
its bit in this register by writing a 1 to the corresponding TXT.EXISTS.SET
register. How each thread determines which bit to write is platform
dependent.
These bits can be cleared by writing a 1 to the corresponding bit in the
TXT.EXISTS.CLEAR register.
Base: TXT_TXT Offset: 0020h
Base: TXT_PR Offset: 0020h
Base: TXT_PB Offset: 0020h
Bit Attr Default Description
63:0 RO 0h
TXT.THREADS.JOIN[63:0]
This bit field indicates the threads that exist in the platform. Each thread
sets its bit in this register by writing a 1 to the corresponding
TXT.JOINS.SET register. How each thread determines which bit to write is
platform dependent.
These bits can be cleared by writing a 1 to the corresponding bit in the
TXT.JOINS.CLEAR register.