From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
joro@8bytes.org, alex.williamson@redhat.com,
jacob.jun.pan@linux.intel.com, yi.l.liu@intel.com,
jean-philippe.brucker@arm.com, will.deacon@arm.com,
robin.murphy@arm.com
Cc: kevin.tian@intel.com, vincent.stehle@arm.com,
ashok.raj@intel.com, marc.zyngier@arm.com
Subject: [PATCH v9 13/14] iommu/smmuv3: Implement bind/unbind_guest_msi
Date: Thu, 11 Jul 2019 13:49:58 +0200 [thread overview]
Message-ID: <20190711114959.15675-14-eric.auger@redhat.com> (raw)
In-Reply-To: <20190711114959.15675-1-eric.auger@redhat.com>
The bind/unbind_guest_msi() callbacks check the domain
is NESTED and redirect to the dma-iommu implementation.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
v6 -> v7:
- remove device handle argument
---
drivers/iommu/arm-smmu-v3.c | 43 +++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 0f2a7586224b..641f1058ef51 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2539,6 +2539,47 @@ static void arm_smmu_put_resv_regions(struct device *dev,
kfree(entry);
}
+static int
+arm_smmu_bind_guest_msi(struct iommu_domain *domain,
+ dma_addr_t giova, phys_addr_t gpa, size_t size)
+{
+ struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
+ struct arm_smmu_device *smmu;
+ int ret = -EINVAL;
+
+ mutex_lock(&smmu_domain->init_mutex);
+ smmu = smmu_domain->smmu;
+ if (!smmu)
+ goto out;
+
+ if (smmu_domain->stage != ARM_SMMU_DOMAIN_NESTED)
+ goto out;
+
+ ret = iommu_dma_bind_guest_msi(domain, giova, gpa, size);
+out:
+ mutex_unlock(&smmu_domain->init_mutex);
+ return ret;
+}
+
+static void
+arm_smmu_unbind_guest_msi(struct iommu_domain *domain, dma_addr_t giova)
+{
+ struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
+ struct arm_smmu_device *smmu;
+
+ mutex_lock(&smmu_domain->init_mutex);
+ smmu = smmu_domain->smmu;
+ if (!smmu)
+ goto unlock;
+
+ if (smmu_domain->stage != ARM_SMMU_DOMAIN_NESTED)
+ goto unlock;
+
+ iommu_dma_unbind_guest_msi(domain, giova);
+unlock:
+ mutex_unlock(&smmu_domain->init_mutex);
+}
+
static int arm_smmu_attach_pasid_table(struct iommu_domain *domain,
struct iommu_pasid_table_config *cfg)
{
@@ -2712,6 +2753,8 @@ static struct iommu_ops arm_smmu_ops = {
.attach_pasid_table = arm_smmu_attach_pasid_table,
.detach_pasid_table = arm_smmu_detach_pasid_table,
.cache_invalidate = arm_smmu_cache_invalidate,
+ .bind_guest_msi = arm_smmu_bind_guest_msi,
+ .unbind_guest_msi = arm_smmu_unbind_guest_msi,
.pgsize_bitmap = -1UL, /* Restricted during device attach */
};
--
2.20.1
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2019-07-11 11:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-11 11:49 [PATCH v9 00/14] SMMUv3 Nested Stage Setup (IOMMU part) Eric Auger
2019-07-11 11:49 ` [PATCH v9 01/14] iommu: Introduce attach/detach_pasid_table API Eric Auger
2019-07-11 11:49 ` [PATCH v9 02/14] iommu: Introduce cache_invalidate API Eric Auger
2019-07-11 11:49 ` [PATCH v9 03/14] iommu: Introduce bind/unbind_guest_msi Eric Auger
2019-07-11 11:49 ` [PATCH v9 04/14] iommu/arm-smmu-v3: Maintain a SID->device structure Eric Auger
2019-07-11 11:49 ` [PATCH v9 05/14] iommu/smmuv3: Dynamically allocate s1_cfg and s2_cfg Eric Auger
2019-07-11 11:49 ` [PATCH v9 06/14] iommu/smmuv3: Get prepared for nested stage support Eric Auger
2019-07-11 11:49 ` [PATCH v9 07/14] iommu/smmuv3: Implement attach/detach_pasid_table Eric Auger
2019-07-11 11:49 ` [PATCH v9 08/14] iommu/smmuv3: Introduce __arm_smmu_tlb_inv_asid/s1_range_nosync Eric Auger
2019-07-11 11:49 ` [PATCH v9 09/14] iommu/smmuv3: Implement cache_invalidate Eric Auger
2019-07-11 11:49 ` [PATCH v9 10/14] dma-iommu: Implement NESTED_MSI cookie Eric Auger
2019-07-11 11:49 ` [PATCH v9 11/14] iommu/smmuv3: Nested mode single MSI doorbell per domain enforcement Eric Auger
2019-07-11 11:49 ` [PATCH v9 12/14] iommu/smmuv3: Enforce incompatibility between nested mode and HW MSI regions Eric Auger
2019-07-11 11:49 ` Eric Auger [this message]
2019-07-11 11:49 ` [PATCH v9 14/14] iommu/smmuv3: Report non recoverable faults Eric Auger
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=20190711114959.15675-14-eric.auger@redhat.com \
--to=eric.auger@redhat.com \
--cc=alex.williamson@redhat.com \
--cc=ashok.raj@intel.com \
--cc=eric.auger.pro@gmail.com \
--cc=iommu@lists.linux-foundation.org \
--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=kvmarm@lists.cs.columbia.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=marc.zyngier@arm.com \
--cc=robin.murphy@arm.com \
--cc=vincent.stehle@arm.com \
--cc=will.deacon@arm.com \
--cc=yi.l.liu@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: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).