From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Auger Subject: [RFC 13/13] iommu/smmuv3: Implement bind_guest_msi Date: Thu, 23 Aug 2018 14:17:36 +0200 Message-ID: <1535026656-8450-14-git-send-email-eric.auger@redhat.com> References: <1535026656-8450-1-git-send-email-eric.auger@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1535026656-8450-1-git-send-email-eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: "eric.auger.pro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kvmarm-FPEHb7Xf0XXUo1n7N8X6UoWGPAHP3yOg@public.gmane.org, joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org, jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, yi.l.liu"@linux.intel.com, will.deacon-5wv7dgnIgG8@public.gmane.org, robin.murphy-5wv7dgnIgG8@public.gmane.org Cc: marc.zyngier-5wv7dgnIgG8@public.gmane.org, peter.maydell-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, christoffer.dall-5wv7dgnIgG8@public.gmane.org List-Id: iommu@lists.linux-foundation.org The bind_guest_msi() callback checks the domain is NESTED and redirect to the dma-iommu implementation. Signed-off-by: Eric Auger --- drivers/iommu/arm-smmu-v3.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index e4c7ae8..ccd55d3 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2025,6 +2025,21 @@ static void arm_smmu_put_resv_regions(struct device *dev, kfree(entry); } +static int arm_smmu_bind_guest_msi(struct iommu_domain *domain, + struct iommu_guest_msi_binding *binding) +{ + struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); + struct arm_smmu_device *smmu = smmu_domain->smmu; + + if (!smmu) + return -EINVAL; + + if (smmu_domain->stage != ARM_SMMU_DOMAIN_NESTED) + return -EINVAL; + + return iommu_dma_bind_doorbell(domain, binding); +} + static int arm_smmu_bind_guest_stage(struct iommu_domain *domain, struct device *dev, struct iommu_guest_stage_config *cfg) @@ -2153,6 +2168,7 @@ static struct iommu_ops arm_smmu_ops = { .of_xlate = arm_smmu_of_xlate, .get_resv_regions = arm_smmu_get_resv_regions, .put_resv_regions = arm_smmu_put_resv_regions, + .bind_guest_msi = arm_smmu_bind_guest_msi, .bind_guest_stage = arm_smmu_bind_guest_stage, .unbind_guest_stage = arm_smmu_unbind_guest_stage, .tlb_invalidate = arm_smmu_tlb_invalidate, -- 2.5.5