本人所用系统无XMS驱动，用参数“/L"加载QDMA失败，提示信息为：No XMS manager: QCACHE not loaded!
无XMS驱动，QDMA不能使用吗？
QDMA的参数L是什么意思？
/L Limits DMA to memory below 640K. /L is REQUIRED by UMBPCI or
other drivers whose "Shadow RAM" upper-memory cannot do DMA.
/L can be omitted when using JEMM386/EMM386 or other drivers
that set regular upper-memory. /L makes the driver use its
XMS buffer for I-O of data above 640K. When QCACHE is used
as a stand-alone UltraDMA driver with /B and /L, such I-O is
"passed" to the BIOS.
无XMS驱动，QDMA不能使用吗？
QDMA的参数L是什么意思？
/L Limits DMA to memory below 640K. /L is REQUIRED by UMBPCI or
other drivers whose "Shadow RAM" upper-memory cannot do DMA.
/L can be omitted when using JEMM386/EMM386 or other drivers
that set regular upper-memory. /L makes the driver use its
XMS buffer for I-O of data above 640K. When QCACHE is used
as a stand-alone UltraDMA driver with /B and /L, such I-O is
"passed" to the BIOS.
