Jiewen Yao 9c5247f1fd IntelSiliconPkg/Vtd: Support CSM usage.
Remove zero address check in IoMmuMap.
The reason is that a CSM legacy driver may use legacy memory for DMA.
As such, the legacyBios need allow below 1M to the legacy device.

This patch also fixed some typo.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit 94fb621d37)
2018-05-10 14:23:18 +08:00
2016-10-26 09:34:34 -07:00
2014-10-14 16:08:15 +00:00
2017-03-10 10:44:13 +08:00
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