From: Lu Baolu <baolu.lu@linux.intel.com> To: Joerg Roedel <joro@8bytes.org>, David Woodhouse <dwmw2@infradead.org>, Alex Williamson <alex.williamson@redhat.com>, Kirti Wankhede <kwankhede@nvidia.com> Cc: ashok.raj@intel.com, sanjay.k.kumar@intel.com, jacob.jun.pan@intel.com, kevin.tian@intel.com, Jean-Philippe Brucker <jean-philippe.brucker@arm.com>, yi.l.liu@intel.com, yi.y.sun@intel.com, peterx@redhat.com, tiwei.bie@intel.com, xin.zeng@intel.com, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Lu Baolu <baolu.lu@linux.intel.com>, Jacob Pan <jacob.jun.pan@linux.intel.com> Subject: [PATCH v8 6/9] iommu/vt-d: Return ID associated with an auxiliary domain Date: Mon, 25 Mar 2019 09:30:33 +0800 [thread overview] Message-ID: <20190325013036.18400-7-baolu.lu@linux.intel.com> (raw) In-Reply-To: <20190325013036.18400-1-baolu.lu@linux.intel.com> This adds support to return the default pasid associated with an auxiliary domain. The PCI device which is bound with this domain should use this value as the pasid for all DMA requests of the subset of device which is isolated and protected with this domain. Cc: Ashok Raj <ashok.raj@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Sanjay Kumar <sanjay.k.kumar@intel.com> Signed-off-by: Liu Yi L <yi.l.liu@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> --- drivers/iommu/intel-iommu.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 28a998afaf74..c137f0f2cf49 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5697,6 +5697,15 @@ intel_iommu_dev_feat_enabled(struct device *dev, enum iommu_dev_features feat) return false; } +static int +intel_iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev) +{ + struct dmar_domain *dmar_domain = to_dmar_domain(domain); + + return dmar_domain->default_pasid > 0 ? + dmar_domain->default_pasid : -EINVAL; +} + const struct iommu_ops intel_iommu_ops = { .capable = intel_iommu_capable, .domain_alloc = intel_iommu_domain_alloc, @@ -5705,6 +5714,7 @@ const struct iommu_ops intel_iommu_ops = { .detach_dev = intel_iommu_detach_device, .aux_attach_dev = intel_iommu_aux_attach_device, .aux_detach_dev = intel_iommu_aux_detach_device, + .aux_get_pasid = intel_iommu_aux_get_pasid, .map = intel_iommu_map, .unmap = intel_iommu_unmap, .iova_to_phys = intel_iommu_iova_to_phys, -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Lu Baolu <baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> To: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>, David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, Alex Williamson <alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Kirti Wankhede <kwankhede-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Cc: kevin.tian-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, tiwei.bie-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, Jean-Philippe Brucker <jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>, sanjay.k.kumar-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, yi.y.sun-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, jacob.jun.pan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Subject: [PATCH v8 6/9] iommu/vt-d: Return ID associated with an auxiliary domain Date: Mon, 25 Mar 2019 09:30:33 +0800 [thread overview] Message-ID: <20190325013036.18400-7-baolu.lu@linux.intel.com> (raw) In-Reply-To: <20190325013036.18400-1-baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> This adds support to return the default pasid associated with an auxiliary domain. The PCI device which is bound with this domain should use this value as the pasid for all DMA requests of the subset of device which is isolated and protected with this domain. Cc: Ashok Raj <ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Cc: Jacob Pan <jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> Cc: Kevin Tian <kevin.tian-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Signed-off-by: Sanjay Kumar <sanjay.k.kumar-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Signed-off-by: Liu Yi L <yi.l.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Signed-off-by: Lu Baolu <baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> --- drivers/iommu/intel-iommu.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 28a998afaf74..c137f0f2cf49 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5697,6 +5697,15 @@ intel_iommu_dev_feat_enabled(struct device *dev, enum iommu_dev_features feat) return false; } +static int +intel_iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev) +{ + struct dmar_domain *dmar_domain = to_dmar_domain(domain); + + return dmar_domain->default_pasid > 0 ? + dmar_domain->default_pasid : -EINVAL; +} + const struct iommu_ops intel_iommu_ops = { .capable = intel_iommu_capable, .domain_alloc = intel_iommu_domain_alloc, @@ -5705,6 +5714,7 @@ const struct iommu_ops intel_iommu_ops = { .detach_dev = intel_iommu_detach_device, .aux_attach_dev = intel_iommu_aux_attach_device, .aux_detach_dev = intel_iommu_aux_detach_device, + .aux_get_pasid = intel_iommu_aux_get_pasid, .map = intel_iommu_map, .unmap = intel_iommu_unmap, .iova_to_phys = intel_iommu_iova_to_phys, -- 2.17.1
next prev parent reply other threads:[~2019-03-25 1:37 UTC|newest] Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-03-25 1:30 [PATCH v8 0/9] vfio/mdev: IOMMU aware mediated device Lu Baolu 2019-03-25 1:30 ` Lu Baolu 2019-03-25 1:30 ` [PATCH v8 1/9] iommu: Add APIs for multiple domains per device Lu Baolu 2019-03-25 1:30 ` Lu Baolu 2019-03-25 1:30 ` [PATCH v8 2/9] iommu/vt-d: Make intel_iommu_enable_pasid() more generic Lu Baolu 2019-03-25 1:30 ` [PATCH v8 3/9] iommu/vt-d: Add per-device IOMMU feature ops entries Lu Baolu 2019-03-25 1:30 ` [PATCH v8 4/9] iommu/vt-d: Move common code out of iommu_attch_device() Lu Baolu 2019-03-25 1:30 ` [PATCH v8 5/9] iommu/vt-d: Aux-domain specific domain attach/detach Lu Baolu 2019-03-25 1:30 ` Lu Baolu [this message] 2019-03-25 1:30 ` [PATCH v8 6/9] iommu/vt-d: Return ID associated with an auxiliary domain Lu Baolu 2019-03-25 1:30 ` [PATCH v8 7/9] vfio/mdev: Add iommu related member in mdev_device Lu Baolu 2019-03-26 9:32 ` Kirti Wankhede 2019-03-27 14:17 ` Parav Pandit 2019-03-27 18:16 ` Alex Williamson 2019-03-27 18:16 ` Alex Williamson 2019-03-26 17:42 ` Alex Williamson 2021-04-06 20:00 ` Jason Gunthorpe 2021-04-06 20:00 ` Jason Gunthorpe 2021-04-07 1:58 ` Lu Baolu 2021-04-07 1:58 ` Lu Baolu 2021-04-07 11:34 ` Jason Gunthorpe 2021-04-07 11:34 ` Jason Gunthorpe 2021-05-11 6:56 ` Lu Baolu 2021-05-11 6:56 ` Lu Baolu 2021-05-11 17:37 ` Jason Gunthorpe 2021-05-11 17:37 ` Jason Gunthorpe 2021-05-12 7:46 ` Tian, Kevin 2021-05-12 7:46 ` Tian, Kevin 2021-05-17 14:03 ` Jason Gunthorpe 2021-05-17 14:03 ` Jason Gunthorpe 2019-03-25 1:30 ` [PATCH v8 8/9] vfio/type1: Add domain at(de)taching group helpers Lu Baolu 2019-03-26 17:42 ` Alex Williamson 2019-03-26 17:42 ` Alex Williamson 2019-03-25 1:30 ` [PATCH v8 9/9] vfio/type1: Handle different mdev isolation type Lu Baolu 2019-03-26 9:33 ` Kirti Wankhede 2019-03-26 17:42 ` Alex Williamson 2019-04-11 15:19 ` [PATCH v8 0/9] vfio/mdev: IOMMU aware mediated device Joerg Roedel 2019-04-11 15:19 ` Joerg Roedel 2019-04-12 1:36 ` Lu Baolu 2019-04-12 1:36 ` Lu Baolu
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20190325013036.18400-7-baolu.lu@linux.intel.com \ --to=baolu.lu@linux.intel.com \ --cc=alex.williamson@redhat.com \ --cc=ashok.raj@intel.com \ --cc=dwmw2@infradead.org \ --cc=iommu@lists.linux-foundation.org \ --cc=jacob.jun.pan@intel.com \ --cc=jacob.jun.pan@linux.intel.com \ --cc=jean-philippe.brucker@arm.com \ --cc=joro@8bytes.org \ --cc=kevin.tian@intel.com \ --cc=kvm@vger.kernel.org \ --cc=kwankhede@nvidia.com \ --cc=linux-kernel@vger.kernel.org \ --cc=peterx@redhat.com \ --cc=sanjay.k.kumar@intel.com \ --cc=tiwei.bie@intel.com \ --cc=xin.zeng@intel.com \ --cc=yi.l.liu@intel.com \ --cc=yi.y.sun@intel.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.