From: Jason Gunthorpe <jgg@nvidia.com>
To: Yi Liu <yi.l.liu@intel.com>
Cc: joro@8bytes.org, alex.williamson@redhat.com,
kevin.tian@intel.com, robin.murphy@arm.com,
baolu.lu@linux.intel.com, cohuck@redhat.com,
eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org,
mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com,
yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com,
shameerali.kolothum.thodi@huawei.com, lulu@redhat.com,
suravee.suthikulpanit@amd.com, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
zhenzhong.duan@intel.com, joao.m.martins@oracle.com,
xin.zeng@intel.com, yan.y.zhao@intel.com
Subject: Re: [PATCH 1/8] iommu: Introduce a replace API for device pasid
Date: Mon, 15 Jan 2024 13:19:50 -0400 [thread overview]
Message-ID: <20240115171950.GL734935@nvidia.com> (raw)
In-Reply-To: <20231127063428.127436-2-yi.l.liu@intel.com>
On Sun, Nov 26, 2023 at 10:34:21PM -0800, Yi Liu wrote:
> +int iommu_replace_device_pasid(struct iommu_domain *domain,
> + struct device *dev, ioasid_t pasid)
> +{
> + struct iommu_group *group = dev->iommu_group;
> + struct iommu_domain *old_domain;
> + int ret;
> +
> + if (!domain)
> + return -EINVAL;
> +
> + if (!group)
> + return -ENODEV;
> +
> + mutex_lock(&group->mutex);
> + __iommu_remove_group_pasid(group, pasid);
It is not replace if you do remove first.
Replace must just call set_dev_pasid and nothing much else..
Jason
next prev parent reply other threads:[~2024-01-15 17:19 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-27 6:34 [PATCH 0/8] iommufd support pasid attach/replace Yi Liu
2023-11-27 6:34 ` [PATCH 1/8] iommu: Introduce a replace API for device pasid Yi Liu
2024-01-15 17:19 ` Jason Gunthorpe [this message]
2024-03-10 13:05 ` Yi Liu
2024-03-11 9:26 ` Tian, Kevin
2024-03-12 3:07 ` Yi Liu
2024-03-13 3:13 ` Baolu Lu
2024-03-13 8:11 ` Yi Liu
2024-03-18 16:52 ` Jason Gunthorpe
2024-03-19 7:29 ` Yi Liu
2024-03-20 12:38 ` Jason Gunthorpe
2024-03-21 6:16 ` Yi Liu
2024-03-21 11:26 ` Yi Liu
2024-03-21 12:20 ` Jason Gunthorpe
2024-03-21 13:58 ` Yi Liu
2023-11-27 6:34 ` [PATCH 2/8] iommufd: replace attach_fn with a structure Yi Liu
2023-11-27 6:34 ` [PATCH 3/8] iommufd: Support attach/replace hwpt per pasid Yi Liu
2024-01-15 17:24 ` Jason Gunthorpe
2024-01-16 1:18 ` Tian, Kevin
2024-01-16 12:57 ` Jason Gunthorpe
2024-01-17 4:17 ` Tian, Kevin
2024-01-17 8:24 ` Yi Liu
2024-01-17 12:56 ` Jason Gunthorpe
2024-01-18 9:28 ` Yi Liu
2024-01-18 13:38 ` Jason Gunthorpe
2024-01-19 10:15 ` Yi Liu
2023-11-27 6:34 ` [PATCH 4/8] iommufd/selftest: Add set_dev_pasid and remove_dev_pasid in mock iommu Yi Liu
2023-11-27 6:34 ` [PATCH 5/8] iommufd/selftest: Add a helper to get test device Yi Liu
2023-11-27 6:34 ` [PATCH 6/8] iommufd/selftest: Add test ops to test pasid attach/detach Yi Liu
2023-11-27 6:34 ` [PATCH 7/8] iommufd/selftest: Add coverage for iommufd " Yi Liu
2023-11-27 6:34 ` [PATCH 8/8] iommu/vt-d: Add set_dev_pasid callback for nested domain Yi Liu
2023-12-14 2:55 ` Yang, Weijiang
2023-12-14 13:33 ` Baolu Lu
2023-12-15 0:37 ` Yang, Weijiang
2024-01-15 17:22 ` Jason Gunthorpe
2024-01-17 8:20 ` Baolu Lu
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