From: "Liu, Yi L" <yi.l.liu@linux.intel.com>
To: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Cc: "Liu, Yi L" <yi.l.liu@intel.com>,
kvm@vger.kernel.org, iommu@lists.linux-foundation.org,
alex.williamson@redhat.com, peterx@redhat.com,
tianyu.lan@intel.com, kevin.tian@intel.com, ashok.raj@intel.com,
jasowang@redhat.com, qemu-devel@nongnu.org,
jacob.jun.pan@intel.com
Subject: Re: [Qemu-devel] [RFC PATCH 5/8] VFIO: Add new IOTCL for PASID Table bind propagation
Date: Thu, 27 Apr 2017 13:43:32 +0800 [thread overview]
Message-ID: <20170427054332.GB14925@sky-dev> (raw)
In-Reply-To: <e8927c18-148f-4dbd-28f9-1a8805a98e05@arm.com>
On Wed, Apr 26, 2017 at 05:56:50PM +0100, Jean-Philippe Brucker wrote:
> On 26/04/17 11:12, Liu, Yi L wrote:
> > From: "Liu, Yi L" <yi.l.liu@linux.intel.com>
> >
> > This patch adds VFIO_IOMMU_SVM_BIND_TASK for potential PASID table
> > binding requests.
> >
> > On VT-d, this IOCTL cmd would be used to link the guest PASID page table
> > to host. While for other vendors, it may also be used to support other
> > kind of SVM bind request. Previously, there is a discussion on it with
> > ARM engineer. It can be found by the link below. This IOCTL cmd may
> > support SVM PASID bind request from userspace driver, or page table(cr3)
> > bind request from guest. These SVM bind requests would be supported by
> > adding different flags. e.g. VFIO_SVM_BIND_PASID is added to support
> > PASID bind from userspace driver, VFIO_SVM_BIND_PGTABLE is added to
> > support page table bind from guest.
> >
> > https://patchwork.kernel.org/patch/9594231/
> >
> > Signed-off-by: Liu, Yi L <yi.l.liu@linux.intel.com>
> > ---
> > include/uapi/linux/vfio.h | 17 +++++++++++++++++
> > 1 file changed, 17 insertions(+)
> >
> > diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
> > index 519eff3..6b97987 100644
> > --- a/include/uapi/linux/vfio.h
> > +++ b/include/uapi/linux/vfio.h
> > @@ -547,6 +547,23 @@ struct vfio_iommu_type1_dma_unmap {
> > #define VFIO_IOMMU_ENABLE _IO(VFIO_TYPE, VFIO_BASE + 15)
> > #define VFIO_IOMMU_DISABLE _IO(VFIO_TYPE, VFIO_BASE + 16)
> >
> > +/* IOCTL for Shared Virtual Memory Bind */
> > +struct vfio_device_svm {
> > + __u32 argsz;
> > +#define VFIO_SVM_BIND_PASIDTBL (1 << 0) /* Bind PASID Table */
> > +#define VFIO_SVM_BIND_PASID (1 << 1) /* Bind PASID from userspace driver */
> > +#define VFIO_SVM_BIND_PGTABLE (1 << 2) /* Bind guest mmu page table */
> > + __u32 flags;
> > + __u32 length;
> > + __u8 data[];
> > +};
> > +
> > +#define VFIO_SVM_TYPE_MASK (VFIO_SVM_BIND_PASIDTBL | \
> > + VFIO_SVM_BIND_PASID | \
> > + VFIO_SVM_BIND_PGTABLE)
> > +
> > +#define VFIO_IOMMU_SVM_BIND_TASK _IO(VFIO_TYPE, VFIO_BASE + 22)
>
> This could be called "VFIO_IOMMU_SVM_BIND, since it will be used both to
> bind tables and individual tasks.
yes, it is. would modify it in next version.
Thanks,
Yi L
> Thanks,
> Jean
>
next prev parent reply other threads:[~2017-04-27 5:59 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-26 10:11 [RFC PATCH 0/8] Shared Virtual Memory virtualization for VT-d Liu, Yi L
2017-04-26 10:11 ` [Qemu-devel] " Liu, Yi L
2017-04-26 10:11 ` [RFC PATCH 1/8] iommu: Introduce bind_pasid_table API function Liu, Yi L
2017-04-26 10:11 ` [Qemu-devel] " Liu, Yi L
2017-04-26 16:56 ` Jean-Philippe Brucker
2017-04-26 16:56 ` [Qemu-devel] " Jean-Philippe Brucker
2017-04-27 6:36 ` Liu, Yi L
2017-04-27 6:36 ` [Qemu-devel] " Liu, Yi L
2017-04-27 10:12 ` Jean-Philippe Brucker
2017-04-27 10:12 ` [Qemu-devel] " Jean-Philippe Brucker
[not found] ` <772ca9de-50ba-a379-002d-5ff1f6a2e297-5wv7dgnIgG8@public.gmane.org>
2017-04-28 7:59 ` Liu, Yi L
2017-04-28 7:59 ` Liu, Yi L
[not found] ` <c042bf90-d48b-4ebf-c01a-fca7c4875277-5wv7dgnIgG8@public.gmane.org>
2017-04-26 18:29 ` jacob pan
2017-04-26 18:29 ` [Qemu-devel] " jacob pan
[not found] ` <20170426112948.00004520-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-04-26 18:59 ` Jean-Philippe Brucker
2017-04-26 18:59 ` [Qemu-devel] " Jean-Philippe Brucker
2017-04-28 9:04 ` Liu, Yi L
2017-04-28 9:04 ` Liu, Yi L
2017-04-28 12:51 ` Jean-Philippe Brucker
2017-04-28 12:51 ` Jean-Philippe Brucker
[not found] ` <3adb4e33-db96-4133-0510-412c3bfb24fe-5wv7dgnIgG8@public.gmane.org>
2017-05-23 7:50 ` Liu, Yi L
2017-05-23 7:50 ` Liu, Yi L
2017-05-25 12:33 ` Jean-Philippe Brucker
2017-05-25 12:33 ` Jean-Philippe Brucker
[not found] ` <1493201525-14418-2-git-send-email-yi.l.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-05-12 21:59 ` Alex Williamson
2017-05-12 21:59 ` [Qemu-devel] " Alex Williamson
[not found] ` <20170512155914.73bad777-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-05-14 10:56 ` Liu, Yi L
2017-05-14 10:56 ` [Qemu-devel] " Liu, Yi L
2017-04-26 10:11 ` [RFC PATCH 2/8] iommu/vt-d: add bind_pasid_table function Liu, Yi L
2017-04-26 10:11 ` [Qemu-devel] " Liu, Yi L
[not found] ` <1493201525-14418-3-git-send-email-yi.l.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-05-12 21:59 ` Alex Williamson
2017-05-12 21:59 ` [Qemu-devel] " Alex Williamson
[not found] ` <20170512155929.66809113-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-05-15 13:14 ` jacob pan
2017-05-15 13:14 ` [Qemu-devel] " jacob pan
2017-04-26 10:12 ` [RFC PATCH 3/8] iommu: Introduce iommu do invalidate API function Liu, Yi L
2017-04-26 10:12 ` [Qemu-devel] " Liu, Yi L
[not found] ` <1493201525-14418-4-git-send-email-yi.l.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-05-12 21:59 ` Alex Williamson
2017-05-12 21:59 ` [Qemu-devel] " Alex Williamson
[not found] ` <20170512155924.755ee17f-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-05-17 10:23 ` Liu, Yi L
2017-05-17 10:23 ` [Qemu-devel] " Liu, Yi L
2017-04-26 10:12 ` [RFC PATCH 4/8] iommu/vt-d: Add iommu do invalidate function Liu, Yi L
2017-04-26 10:12 ` [Qemu-devel] " Liu, Yi L
[not found] ` <1493201525-14418-5-git-send-email-yi.l.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-05-12 21:59 ` Alex Williamson
2017-05-12 21:59 ` [Qemu-devel] " Alex Williamson
[not found] ` <20170512155918.5251fb94-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-05-17 10:24 ` Liu, Yi L
2017-05-17 10:24 ` [Qemu-devel] " Liu, Yi L
2017-04-26 10:12 ` [RFC PATCH 5/8] VFIO: Add new IOTCL for PASID Table bind propagation Liu, Yi L
2017-04-26 10:12 ` [Qemu-devel] " Liu, Yi L
2017-04-26 16:56 ` Jean-Philippe Brucker
2017-04-26 16:56 ` [Qemu-devel] " Jean-Philippe Brucker
2017-04-27 5:43 ` Liu, Yi L [this message]
[not found] ` <1493201525-14418-6-git-send-email-yi.l.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-05-11 10:29 ` Liu, Yi L
2017-05-11 10:29 ` Liu, Yi L
2017-05-12 21:58 ` Alex Williamson
2017-05-12 21:58 ` [Qemu-devel] " Alex Williamson
[not found] ` <20170512155851.627409ed-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-05-17 10:27 ` Liu, Yi L
2017-05-17 10:27 ` Liu, Yi L
[not found] ` <20170517102759.GF22110-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-05-18 11:29 ` Jean-Philippe Brucker
2017-05-18 11:29 ` Jean-Philippe Brucker
2017-04-26 10:12 ` [RFC PATCH 6/8] VFIO: do pasid table binding Liu, Yi L
2017-04-26 10:12 ` [Qemu-devel] " Liu, Yi L
2017-05-09 7:55 ` Xiao Guangrong
2017-05-09 7:55 ` [Qemu-devel] " Xiao Guangrong
2017-05-11 10:29 ` Liu, Yi L
2017-05-12 21:59 ` Alex Williamson
2017-05-12 21:59 ` [Qemu-devel] " Alex Williamson
2017-04-26 10:12 ` [RFC PATCH 7/8] VFIO: Add new IOCTL for IOMMU TLB invalidate propagation Liu, Yi L
2017-04-26 10:12 ` [Qemu-devel] " Liu, Yi L
2017-05-12 12:11 ` Jean-Philippe Brucker
2017-05-12 12:11 ` [Qemu-devel] " Jean-Philippe Brucker
[not found] ` <cc330a8f-e087-9b6f-2a40-38b58688d300-5wv7dgnIgG8@public.gmane.org>
2017-05-14 10:12 ` Liu, Yi L
2017-05-14 10:12 ` [Qemu-devel] " Liu, Yi L
2017-05-15 12:14 ` Jean-Philippe Brucker
2017-05-15 12:14 ` [Qemu-devel] " Jean-Philippe Brucker
2017-07-02 10:06 ` Liu, Yi L
2017-07-02 10:06 ` Liu, Yi L
2017-07-03 11:52 ` Jean-Philippe Brucker
[not found] ` <0e4f2dd4-d553-b1b7-7bec-fe0ff5242c54-5wv7dgnIgG8@public.gmane.org>
2017-07-03 10:31 ` Liu, Yi L
2017-07-03 10:31 ` Liu, Yi L
[not found] ` <20170703103115.GB22053-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-07-05 6:45 ` Tian, Kevin
2017-07-05 6:45 ` Tian, Kevin
[not found] ` <AADFC41AFE54684AB9EE6CBC0274A5D190D25919-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-07-05 12:42 ` Jean-Philippe Brucker
2017-07-05 12:42 ` Jean-Philippe Brucker
[not found] ` <1d63c1ae-ca10-0f9d-91de-0d9c9823c104-5wv7dgnIgG8@public.gmane.org>
2017-07-05 17:28 ` Alex Williamson
2017-07-05 17:28 ` Alex Williamson
[not found] ` <20170705112816.56554f65-DGNDKt5SQtizQB+pC5nmwQ@public.gmane.org>
2017-07-05 22:26 ` Tian, Kevin
2017-07-05 22:26 ` Tian, Kevin
2017-07-14 8:58 ` Liu, Yi L
2017-07-14 8:58 ` Liu, Yi L
[not found] ` <A2975661238FB949B60364EF0F2C2574390A7C4F-E2R4CRU6q/6iAffOGbnezLfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-07-14 18:15 ` Alex Williamson
2017-07-14 18:15 ` Alex Williamson
[not found] ` <20170714121555.7e64d849-DGNDKt5SQtizQB+pC5nmwQ@public.gmane.org>
2017-07-17 10:58 ` Liu, Yi L
2017-07-17 10:58 ` Liu, Yi L
2017-07-17 22:45 ` Alex Williamson
[not found] ` <20170717164515.2491b3bf-DGNDKt5SQtizQB+pC5nmwQ@public.gmane.org>
2017-07-18 9:38 ` Jean-Philippe Brucker
2017-07-18 9:38 ` Jean-Philippe Brucker
[not found] ` <d0abeefc-adcf-85c3-f5d9-8c90a18f8011-5wv7dgnIgG8@public.gmane.org>
2017-07-18 14:29 ` Alex Williamson
2017-07-18 14:29 ` Alex Williamson
2017-07-18 15:03 ` Jean-Philippe Brucker
2017-07-19 10:45 ` Liu, Yi L
2017-07-19 10:45 ` Liu, Yi L
2017-07-19 21:50 ` Jacob Pan
2017-07-19 21:50 ` Jacob Pan
2017-07-05 22:31 ` Tian, Kevin
2017-07-05 22:31 ` Tian, Kevin
2017-05-12 21:58 ` Alex Williamson
2017-05-12 21:58 ` [Qemu-devel] " Alex Williamson
2017-05-14 10:55 ` Liu, Yi L
2017-05-14 10:55 ` [Qemu-devel] " Liu, Yi L
[not found] ` <20170514105507.GB22110-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-07-05 5:32 ` Tian, Kevin
2017-07-05 5:32 ` [Qemu-devel] " Tian, Kevin
2017-04-26 10:12 ` [RFC PATCH 8/8] VFIO: do IOMMU TLB invalidation from guest Liu, Yi L
2017-04-26 10:12 ` [Qemu-devel] " Liu, Yi L
2017-05-08 4:09 ` [RFC PATCH 0/8] Shared Virtual Memory virtualization for VT-d Xiao Guangrong
2017-05-08 4:09 ` [Qemu-devel] " Xiao Guangrong
2017-05-07 7:33 ` Liu, Yi L
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