From: Yi Liu <yi.l.liu@intel.com>
To: "Tian, Kevin" <kevin.tian@intel.com>,
"joro@8bytes.org" <joro@8bytes.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"jgg@nvidia.com" <jgg@nvidia.com>,
"robin.murphy@arm.com" <robin.murphy@arm.com>,
"baolu.lu@linux.intel.com" <baolu.lu@linux.intel.com>
Cc: "cohuck@redhat.com" <cohuck@redhat.com>,
"eric.auger@redhat.com" <eric.auger@redhat.com>,
"nicolinc@nvidia.com" <nicolinc@nvidia.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"mjrosato@linux.ibm.com" <mjrosato@linux.ibm.com>,
"chao.p.peng@linux.intel.com" <chao.p.peng@linux.intel.com>,
"yi.y.sun@linux.intel.com" <yi.y.sun@linux.intel.com>,
"peterx@redhat.com" <peterx@redhat.com>,
"jasowang@redhat.com" <jasowang@redhat.com>,
"shameerali.kolothum.thodi@huawei.com"
<shameerali.kolothum.thodi@huawei.com>,
"lulu@redhat.com" <lulu@redhat.com>,
"suravee.suthikulpanit@amd.com" <suravee.suthikulpanit@amd.com>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-kselftest@vger.kernel.org"
<linux-kselftest@vger.kernel.org>,
"Duan, Zhenzhong" <zhenzhong.duan@intel.com>,
"Martins, Joao" <joao.m.martins@oracle.com>
Subject: Re: [PATCH 4/6] iommufd/hw_pagetable: Support allocating nested parent domain
Date: Tue, 26 Sep 2023 13:50:09 +0800 [thread overview]
Message-ID: <8e459e7b-2951-e252-b1ec-c2dd6d047aff@intel.com> (raw)
In-Reply-To: <BN9PR11MB5276DBCF4B2DCF894C4E53278CC3A@BN9PR11MB5276.namprd11.prod.outlook.com>
On 2023/9/26 13:32, Tian, Kevin wrote:
>> From: Liu, Yi L <yi.l.liu@intel.com>
>> Sent: Tuesday, September 19, 2023 5:25 PM
>>
>> @@ -83,6 +83,9 @@ iommufd_hw_pagetable_alloc(struct iommufd_ctx *ictx,
>> struct iommufd_ioas *ioas,
>>
>> lockdep_assert_held(&ioas->mutex);
>>
>> + if ((flags & IOMMU_HWPT_ALLOC_NEST_PARENT) && !ops-
>>> domain_alloc_user)
>> + return ERR_PTR(-EOPNOTSUPP);
>> +
>
> if (flags && !ops->domain_alloc_user)
> return ERR_PTR(-EOPNOTSUPP);
>
> as long as flags is non-zero we'll need the new alloc_user ops.
yes.
--
Regards,
Yi Liu
next prev parent reply other threads:[~2023-09-26 5:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-19 9:25 [PATCH 0/6] iommufd support allocating nested parent domain Yi Liu
2023-09-19 9:25 ` [PATCH 1/6] iommu: Add new iommu op to create domains owned by userspace Yi Liu
2023-09-26 5:28 ` Tian, Kevin
2023-09-26 5:52 ` Yi Liu
2023-09-19 9:25 ` [PATCH 2/6] iommufd/hw_pagetable: Use domain_alloc_user op for domain allocation Yi Liu
2023-09-19 9:25 ` [PATCH 3/6] iommufd/hw_pagetable: Accepts user flags " Yi Liu
2023-09-26 5:29 ` Tian, Kevin
2023-09-19 9:25 ` [PATCH 4/6] iommufd/hw_pagetable: Support allocating nested parent domain Yi Liu
2023-09-20 5:05 ` Baolu Lu
2023-09-25 6:39 ` Yi Liu
2023-09-26 5:32 ` Tian, Kevin
2023-09-26 5:50 ` Yi Liu [this message]
2023-09-19 9:25 ` [PATCH 5/6] iommufd/selftest: Add domain_alloc_user() support in iommu mock Yi Liu
2023-09-26 5:33 ` Tian, Kevin
2023-09-19 9:25 ` [PATCH 6/6] iommu/vt-d: Add domain_alloc_user op Yi Liu
2023-09-20 5:28 ` Baolu Lu
2023-09-20 13:05 ` Jason Gunthorpe
2023-09-20 13:10 ` Liu, Yi L
2023-09-20 13:18 ` Jason Gunthorpe
2023-09-25 6:37 ` Yi Liu
2023-09-21 1:31 ` Baolu Lu
2023-09-25 6:36 ` Yi Liu
2023-09-26 5:36 ` Tian, Kevin
2023-09-20 13:18 ` Liu, Yi L
2023-09-20 5:41 ` Yang, Weijiang
2023-09-20 13:06 ` Jason Gunthorpe
2023-09-20 13:15 ` Liu, Yi L
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