From: "Liu, Yi L" <yi.l.liu@intel.com>
To: "Liu, Jingqi" <jingqi.liu@intel.com>,
"joro@8bytes.org" <joro@8bytes.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"jgg@nvidia.com" <jgg@nvidia.com>,
"Tian, Kevin" <kevin.tian@intel.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>
Subject: RE: [PATCH v2 1/5] iommufd: Add nesting related data structures for Intel VT-d
Date: Tue, 21 Mar 2023 06:31:41 +0000 [thread overview]
Message-ID: <DS0PR11MB752972C93CFF0DB623623604C3819@DS0PR11MB7529.namprd11.prod.outlook.com> (raw)
In-Reply-To: <6c8e55e0-e699-d199-87b7-04c81e7e2493@intel.com>
> From: Liu, Jingqi <jingqi.liu@intel.com>
> Sent: Wednesday, March 15, 2023 9:51 PM
>
>
> On 3/9/2023 4:22 PM, Yi Liu wrote:
> > Add the following data structures for corresponding ioctls:
> > iommu_hwpt_intel_vtd => IOMMU_HWPT_ALLOC
> > iommu_hw_info_vtd => IOMMU_DEVICE_GET_HW_INFO
> > iommu_hwpt_invalidate_intel_vtd => IOMMU_HWPT_INVALIDATE
> >
> > Also, add IOMMU_HW_INFO_TYPE_INTEL_VTD and
> IOMMU_HWPT_TYPE_VTD_S1 to the
> > header and corresponding type/size arrays.
> >
> > Signed-off-by: Yi Liu <yi.l.liu@intel.com>
> > ---
> > drivers/iommu/iommufd/hw_pagetable.c | 7 +-
> > drivers/iommu/iommufd/main.c | 5 +
> > include/uapi/linux/iommufd.h | 136
> +++++++++++++++++++++++++++
> > 3 files changed, 147 insertions(+), 1 deletion(-)
> >
> [...]
>
> > +
> > +/**
> > + * struct iommu_hwpt_intel_vtd - Intel VT-d specific user-managed
> > + * stage-1 page table info
> > + * @flags: Combination of enum iommu_hwpt_intel_vtd_flags
> > + * @pgtbl_addr: The base address of the user-managed stage-1 page
> table.
> > + * @pat: Page attribute table data to compute effective memory type
> > + * @emt: Extended memory type
> > + * @addr_width: The address width of the untranslated addresses that
> are
> > + * subjected to the user-managed stage-1 page table.
> > + * @__reserved: Must be 0
> > + *
> > + * The Intel VT-d specific data for creating hw_pagetable to represent
> > + * the user-managed stage-1 page table that is used in nested translation.
> > + *
> > + * In nested translation, the stage-1 page table locates in the address
> > + * space that defined by the corresponding stage-2 page table. Hence
> the
> > + * stage-1 page table base address value should not be higher than the
> > + * maximum untranslated address of stage-2 page table.
> > + *
> > + * The paging level of the stage-1 page table should be compataible with
>
> s/compataible/compatible
>
> > + * the hardware iommu. Otherwise, the allocation would be failed.
> > + */
> > +struct iommu_hwpt_intel_vtd {
> > + __u64 flags;
> > + __u64 pgtbl_addr;
> > + __u32 pat;
> > + __u32 emt;
> > + __u32 addr_width;
> > + __u32 __reserved;
> > };
> >
>
> [...]
>
> > +
> > +/**
> > + * struct iommu_hwpt_invalidate_intel_vtd - Intel VT-d cache
> invalidation info
> > + * @granularity: One of enum iommu_vtd_qi_granularity.
> > + * @flags: Combination of enum
> iommu_hwpt_intel_vtd_invalidate_flags
> > + * @__reserved: Must be 0
> > + * @addr: The start address of the addresses to be invalidated.
> > + * @granule_size: Page/block size of the mapping in bytes. It is used to
> > + * compute the invalidation range togehter with @nb_granules.
>
> s/togehter/together
>
All above received. Thanks.
Regards,
Yi Liu
next prev parent reply other threads:[~2023-03-21 6:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-09 8:22 [PATCH v2 0/5] Add Intel VT-d nested translation Yi Liu
2023-03-09 8:22 ` [PATCH v2 1/5] iommufd: Add nesting related data structures for Intel VT-d Yi Liu
2023-03-15 13:50 ` Liu, Jingqi
2023-03-21 6:31 ` Liu, Yi L [this message]
2023-03-20 13:49 ` Jason Gunthorpe
2023-03-21 6:06 ` Liu, Yi L
2023-03-09 8:22 ` [PATCH v2 2/5] iommu/vt-d: Implement hw_info for iommu capability query Yi Liu
2023-03-09 8:22 ` [PATCH v2 3/5] iommu/vt-d: Extend dmar_domain to support nested domain Yi Liu
2023-03-20 13:54 ` Jason Gunthorpe
2023-03-21 1:58 ` Baolu Lu
2023-03-09 8:22 ` [PATCH v2 4/5] iommu/vt-d: Add helper to setup pasid nested translation Yi Liu
2023-03-09 8:22 ` [PATCH v2 5/5] iommu/vt-d: Add nested domain support Yi Liu
2023-03-13 13:51 ` Liu, Jingqi
[not found] ` <bf434709-4bb3-a7bd-4b5a-9f495bd3a104@intel.com>
2023-03-14 1:21 ` Baolu Lu
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=DS0PR11MB752972C93CFF0DB623623604C3819@DS0PR11MB7529.namprd11.prod.outlook.com \
--to=yi.l.liu@intel.com \
--cc=alex.williamson@redhat.com \
--cc=baolu.lu@linux.intel.com \
--cc=chao.p.peng@linux.intel.com \
--cc=cohuck@redhat.com \
--cc=eric.auger@redhat.com \
--cc=iommu@lists.linux.dev \
--cc=jasowang@redhat.com \
--cc=jgg@nvidia.com \
--cc=jingqi.liu@intel.com \
--cc=joro@8bytes.org \
--cc=kevin.tian@intel.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=lulu@redhat.com \
--cc=mjrosato@linux.ibm.com \
--cc=nicolinc@nvidia.com \
--cc=peterx@redhat.com \
--cc=robin.murphy@arm.com \
--cc=shameerali.kolothum.thodi@huawei.com \
--cc=suravee.suthikulpanit@amd.com \
--cc=yi.y.sun@linux.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).