euleros inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I42DAP
CVE: NA

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arm64 cannot support virtualization pass-through feature when using the
3408iMR/3416iMR raid card.
For solving the problem, we add two fuctions:
1.we prepare init bypass level2 entry for specific devices
when smmu uses 2 level streamid entry.
2.we add smmu.bypassdev cmdline to allow SMMU bypass streams
for some specific devices.

usage: 3408iMRraid: smmu.bypassdev=0x1000:0x17
       3416iMRraid: smmu.bypassdev=0x1000:0x15

Signed-off-by: luochunsheng<luochunsheng@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>