status register[TS] bit
Indicates that the TLB has detected a match on multiple
entries. When such a detection occurs, the processor
initiates a machine check exception and sets this bit. It is
implementation dependent whether this condition can be
corrected by software. If the condition can be corrected,
this bit should be cleared by software before resuming
normal operation.
If this bit is not implemented, it must be ignored on write
and read as zero.
Software should not write a 1 to this bit when its value is
a 0, thereby causing a 0-to-1 transition. If such a transition
is caused by software, it is UNPREDICTABLE whether
hardware ignores the write, accepts the write with no side
effects, or accepts the write and initiates a machine check
exception.作者: jyhhappyjyh 时间: 2009-12-31 13:23 标题: 回复 #6 readkernel 的帖子 对的,k0和k1段是不需要进行映射的,有点像是硬件来完成的,都是指向0x0000 0000 ~ 0x1FFF FFFF。作者: jyhhappyjyh 时间: 2009-12-31 13:57