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    Subject[PATCH v9 18/18] iommu/arm-smmu: Do not advertise IOMMU_CAP_INTR_REMAP anymore
    Date
    IOMMU_CAP_INTR_REMAP has been advertised in arm-smmu(-v3) although
    on ARM this property is not attached to the IOMMU but rather is
    implemented in the MSI controller (GICv3 ITS).

    Now vfio_iommu_type1 checks MSI remapping capability at MSI controller
    level, let's correct this.

    Signed-off-by: Eric Auger <eric.auger@redhat.com>
    Acked-by: Will Deacon <will.deacon@arm.com>
    Reviewed-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
    Tested-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
    Tested-by: Bharat Bhushan <bharat.bhushan@nxp.com>

    ---

    v7 -> v8:
    - added Will's A-b
    ---
    drivers/iommu/arm-smmu-v3.c | 2 --
    drivers/iommu/arm-smmu.c | 2 --
    2 files changed, 4 deletions(-)

    diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
    index 6c4111c..d9cf6cb 100644
    --- a/drivers/iommu/arm-smmu-v3.c
    +++ b/drivers/iommu/arm-smmu-v3.c
    @@ -1375,8 +1375,6 @@ static bool arm_smmu_capable(enum iommu_cap cap)
    switch (cap) {
    case IOMMU_CAP_CACHE_COHERENCY:
    return true;
    - case IOMMU_CAP_INTR_REMAP:
    - return true; /* MSIs are just memory writes */
    case IOMMU_CAP_NOEXEC:
    return true;
    default:
    diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
    index a354572..13d2600 100644
    --- a/drivers/iommu/arm-smmu.c
    +++ b/drivers/iommu/arm-smmu.c
    @@ -1374,8 +1374,6 @@ static bool arm_smmu_capable(enum iommu_cap cap)
    * requests.
    */
    return true;
    - case IOMMU_CAP_INTR_REMAP:
    - return true; /* MSIs are just memory writes */
    case IOMMU_CAP_NOEXEC:
    return true;
    default:
    --
    1.9.1
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