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,
will@kernel.org, joro@8bytes.org, maz@kernel.org,
robin.murphy@arm.com
Cc: jean-philippe@linaro.org, zhangfei.gao@linaro.org,
zhangfei.gao@gmail.com, vivek.gautam@arm.com,
shameerali.kolothum.thodi@huawei.com, alex.williamson@redhat.com,
jacob.jun.pan@linux.intel.com, yi.l.liu@intel.com,
tn@semihalf.com, nicoleotsuka@gmail.com
Subject: [PATCH v12 15/15] iommu/smmuv3: Add PASID cache invalidation per PASID
Date: Mon, 16 Nov 2020 11:43:16 +0100 [thread overview]
Message-ID: <20201116104316.31816-16-eric.auger@redhat.com> (raw)
In-Reply-To: <20201116104316.31816-1-eric.auger@redhat.com>
In order to cascade guest CFGI_CD, let's add PASID cache invalidation
per PASID.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 6549c3ee6af6..eb0e09936803 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -3002,9 +3002,19 @@ arm_smmu_cache_invalidate(struct iommu_domain *domain, struct device *dev,
} else {
return -EINVAL;
}
- }
- if (inv_info->cache & IOMMU_CACHE_INV_TYPE_PASID ||
- inv_info->cache & IOMMU_CACHE_INV_TYPE_DEV_IOTLB) {
+ } else if (inv_info->cache & IOMMU_CACHE_INV_TYPE_PASID) {
+ if (inv_info->granularity == IOMMU_INV_GRANU_PASID) {
+ struct iommu_inv_pasid_info *info =
+ &inv_info->granu.pasid_info;
+
+ if (!info->flags & IOMMU_INV_PASID_FLAGS_PASID)
+ return -EINVAL;
+
+ arm_smmu_sync_cd(smmu_domain, info->pasid, true);
+ } else {
+ return -ENOENT;
+ }
+ } else { /* IOMMU_CACHE_INV_TYPE_DEV_IOTLB */
return -ENOENT;
}
return 0;
--
2.21.3
next prev parent reply other threads:[~2020-11-16 12:18 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-16 10:43 [PATCH v12 00/15] SMMUv3 Nested Stage Setup (IOMMU part) Eric Auger
2020-11-16 10:43 ` [PATCH v12 01/15] iommu: Introduce attach/detach_pasid_table API Eric Auger
2020-11-16 15:14 ` kernel test robot
2020-11-16 10:43 ` [PATCH v12 02/15] iommu: Introduce bind/unbind_guest_msi Eric Auger
2020-11-16 10:43 ` [PATCH v12 03/15] iommu/arm-smmu-v3: Maintain a SID->device structure Eric Auger
2020-11-16 10:43 ` [PATCH v12 04/15] iommu/smmuv3: Dynamically allocate s1_cfg and s2_cfg Eric Auger
2020-11-17 11:39 ` Shameerali Kolothum Thodi
2020-11-17 12:36 ` Auger Eric
2020-11-16 10:43 ` [PATCH v12 05/15] iommu/smmuv3: Get prepared for nested stage support Eric Auger
2020-11-16 10:43 ` [PATCH v12 06/15] iommu/smmuv3: Implement attach/detach_pasid_table Eric Auger
2020-11-16 10:43 ` [PATCH v12 07/15] iommu/smmuv3: Allow stage 1 invalidation with unmanaged ASIDs Eric Auger
2020-11-16 10:43 ` [PATCH v12 08/15] iommu/smmuv3: Implement cache_invalidate Eric Auger
2020-11-16 10:43 ` [PATCH v12 09/15] dma-iommu: Implement NESTED_MSI cookie Eric Auger
2020-11-16 10:43 ` [PATCH v12 10/15] iommu/smmuv3: Nested mode single MSI doorbell per domain enforcement Eric Auger
2020-11-16 10:43 ` [PATCH v12 11/15] iommu/smmuv3: Enforce incompatibility between nested mode and HW MSI regions Eric Auger
2020-11-16 10:43 ` [PATCH v12 12/15] iommu/smmuv3: Implement bind/unbind_guest_msi Eric Auger
2020-11-16 10:43 ` [PATCH v12 13/15] iommu/smmuv3: Report non recoverable faults Eric Auger
2020-11-16 10:43 ` [PATCH v12 14/15] iommu/smmuv3: Accept configs with more than one context descriptor Eric Auger
2020-11-16 10:43 ` Eric Auger [this message]
2020-11-16 16:24 ` [PATCH v12 15/15] iommu/smmuv3: Add PASID cache invalidation per PASID kernel test robot
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