[PATCH v3 OLK-6.6 0/1] iommu: Enable smmu-v3 when 3408iMR/3416iMRraid card exist

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

drivers/iommu/Kconfig | 9 ++ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 114 +++++++++++++++++++- 2 files changed, 120 insertions(+), 3 deletions(-)