From: "Tian, Kevin" <kevin.tian@intel.com>
To: Nicolin Chen <nicolinc@nvidia.com>, Jason Gunthorpe <jgg@nvidia.com>
Cc: "Liu, Yi L" <yi.l.liu@intel.com>,
"joro@8bytes.org" <joro@8bytes.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"robin.murphy@arm.com" <robin.murphy@arm.com>,
"baolu.lu@linux.intel.com" <baolu.lu@linux.intel.com>,
"cohuck@redhat.com" <cohuck@redhat.com>,
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"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>,
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"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>
Subject: RE: [PATCH v4 09/12] iommu/vt-d: Add iotlb flush for nested domain
Date: Mon, 21 Aug 2023 01:24:01 +0000 [thread overview]
Message-ID: <BN9PR11MB527666891DBDA346D9EA58018C1EA@BN9PR11MB5276.namprd11.prod.outlook.com> (raw)
In-Reply-To: <ZN+3spv3/8N2IDVa@Asurada-Nvidia>
> From: Nicolin Chen <nicolinc@nvidia.com>
> Sent: Saturday, August 19, 2023 2:26 AM
>
> On Fri, Aug 18, 2023 at 03:20:55PM -0300, Jason Gunthorpe wrote:
> > On Fri, Aug 18, 2023 at 10:56:45AM -0700, Nicolin Chen wrote:
> >
> > > > The highest array index sounds generic, the error code maybe is too
> > >
> > > We could do in its and report the error code in its raw form:
> > > __u32 out_array_index;
> > > /* number of bits used to report error code in the returned
> array_index */
> > > __u32 out_array_index_error_code_bits;
> > > Or just:
> > > __u32 out_array_index;
> > > __u32 out_error_code;
> > >
> > > Do we have to define a list of generic error code?
> >
> > out_driver_error_code may be OK
>
> Ack. Will implement the array in that way.
>
Yes. Error code is driver specific. Just having a field to carry it is
sufficient.
next prev parent reply other threads:[~2023-08-21 1:24 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-24 11:13 [PATCH v4 00/12] Add Intel VT-d nested translation Yi Liu
2023-07-24 11:13 ` [PATCH v4 01/12] iommufd: Add data structure for Intel VT-d stage-1 domain allocation Yi Liu
2023-08-02 6:40 ` Tian, Kevin
2023-07-24 11:13 ` [PATCH v4 02/12] iommu/vt-d: Extend dmar_domain to support nested domain Yi Liu
2023-08-02 6:42 ` Tian, Kevin
2023-07-24 11:13 ` [PATCH v4 03/12] iommu/vt-d: Add helper for nested domain allocation Yi Liu
2023-08-02 6:44 ` Tian, Kevin
2023-07-24 11:13 ` [PATCH v4 04/12] iommu/vt-d: Add helper to setup pasid nested translation Yi Liu
2023-08-02 7:10 ` Tian, Kevin
2023-08-02 8:09 ` Baolu Lu
2023-08-02 8:11 ` Baolu Lu
2023-08-02 8:13 ` Tian, Kevin
2023-08-03 3:13 ` Baolu Lu
2023-08-03 3:58 ` Tian, Kevin
2023-07-24 11:13 ` [PATCH v4 05/12] iommu/vt-d: Make domain attach helpers to be extern Yi Liu
2023-08-02 7:14 ` Tian, Kevin
2023-07-24 11:13 ` [PATCH v4 06/12] iommu/vt-d: Set the nested domain to a device Yi Liu
2023-08-02 7:22 ` Tian, Kevin
2023-08-03 3:17 ` Baolu Lu
2023-07-24 11:13 ` [PATCH v4 07/12] iommufd: Add data structure for Intel VT-d stage-1 cache invalidation Yi Liu
2023-08-02 7:41 ` Tian, Kevin
2023-08-02 13:47 ` Jason Gunthorpe
2023-08-03 0:38 ` Tian, Kevin
2023-08-04 13:04 ` Liu, Yi L
2023-08-04 14:03 ` Jason Gunthorpe
2023-08-07 14:02 ` Liu, Yi L
2023-07-24 11:13 ` [PATCH v4 08/12] iommu/vt-d: Make iotlb flush helpers to be extern Yi Liu
2023-08-02 7:41 ` Tian, Kevin
2023-07-24 11:13 ` [PATCH v4 09/12] iommu/vt-d: Add iotlb flush for nested domain Yi Liu
2023-08-02 7:46 ` Tian, Kevin
2023-08-03 3:24 ` Baolu Lu
2023-08-03 4:00 ` Tian, Kevin
2023-08-03 4:05 ` Baolu Lu
2023-08-03 4:13 ` Tian, Kevin
2023-08-03 7:36 ` Baolu Lu
2023-08-07 15:08 ` Liu, Yi L
2023-08-08 3:12 ` Nicolin Chen
2023-08-08 12:34 ` Jason Gunthorpe
2023-08-08 17:41 ` Nicolin Chen
2023-08-09 8:22 ` Tian, Kevin
2023-08-09 8:50 ` Liu, Yi L
2023-08-09 8:58 ` Tian, Kevin
2023-08-09 9:30 ` Liu, Yi L
2023-08-09 16:24 ` Jason Gunthorpe
2023-08-09 19:12 ` Nicolin Chen
2023-08-09 19:19 ` Jason Gunthorpe
2023-08-09 20:17 ` Nicolin Chen
2023-08-10 2:49 ` Tian, Kevin
2023-08-10 15:57 ` Jason Gunthorpe
2023-08-10 17:14 ` Nicolin Chen
2023-08-10 19:27 ` Jason Gunthorpe
2023-08-10 21:02 ` Nicolin Chen
2023-08-11 3:52 ` Tian, Kevin
2023-08-11 16:45 ` Nicolin Chen
2023-08-15 6:18 ` Nicolin Chen
2023-08-18 16:56 ` Jason Gunthorpe
2023-08-18 17:56 ` Nicolin Chen
2023-08-18 18:20 ` Jason Gunthorpe
2023-08-18 18:25 ` Nicolin Chen
2023-08-21 1:24 ` Tian, Kevin [this message]
2023-08-10 3:28 ` Liu, Yi L
2023-08-10 3:33 ` Nicolin Chen
2023-07-24 11:13 ` [PATCH v4 10/12] iommu/vt-d: Add nested domain allocation Yi Liu
2023-08-02 7:47 ` Tian, Kevin
2023-07-24 11:13 ` [PATCH v4 11/12] iommu/vt-d: Implement hw_info for iommu capability query Yi Liu
2023-08-15 16:31 ` Jason Gunthorpe
2023-08-16 0:35 ` Baolu Lu
2023-08-16 1:10 ` Nicolin Chen
2023-08-16 11:46 ` Jason Gunthorpe
2023-08-16 11:48 ` Baolu Lu
2023-08-16 12:03 ` Liu, Yi L
2023-07-24 11:13 ` [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings Yi Liu
2023-08-02 7:59 ` Tian, Kevin
2023-08-03 3:27 ` Baolu Lu
2023-08-03 4:00 ` Tian, Kevin
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