From: "Liu, Yi L" <yi.l.liu@intel.com> To: kvm@vger.kernel.org, iommu@lists.linux-foundation.org, alex.williamson@redhat.com, peterx@redhat.com Cc: jasowang@redhat.com, qemu-devel@nongnu.org, kevin.tian@intel.com, ashok.raj@intel.com, jacob.jun.pan@intel.com, tianyu.lan@intel.com, yi.l.liu@intel.com, jean-philippe.brucker@arm.com, "Liu, Yi L" <yi.l.liu@linux.intel.com> Subject: [RFC PATCH 7/8] VFIO: Add new IOCTL for IOMMU TLB invalidate propagation Date: Wed, 26 Apr 2017 18:12:04 +0800 [thread overview] Message-ID: <1493201525-14418-8-git-send-email-yi.l.liu@intel.com> (raw) In-Reply-To: <1493201525-14418-1-git-send-email-yi.l.liu@intel.com> From: "Liu, Yi L" <yi.l.liu@linux.intel.com> This patch adds VFIO_IOMMU_TLB_INVALIDATE to propagate IOMMU TLB invalidate request from guest to host. In the case of SVM virtualization on VT-d, host IOMMU driver has no knowledge of caching structure updates unless the guest invalidation activities are passed down to the host. So a new IOCTL is needed to propagate the guest cache invalidation through VFIO. Signed-off-by: Liu, Yi L <yi.l.liu@linux.intel.com> --- include/uapi/linux/vfio.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 6b97987..50c51f8 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -564,6 +564,15 @@ struct vfio_device_svm { #define VFIO_IOMMU_SVM_BIND_TASK _IO(VFIO_TYPE, VFIO_BASE + 22) +/* For IOMMU TLB Invalidation Propagation */ +struct vfio_iommu_tlb_invalidate { + __u32 argsz; + __u32 length; + __u8 data[]; +}; + +#define VFIO_IOMMU_TLB_INVALIDATE _IO(VFIO_TYPE, VFIO_BASE + 23) + /* -------- Additional API for SPAPR TCE (Server POWERPC) IOMMU -------- */ /* -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: "Liu, Yi L" <yi.l.liu@intel.com> To: kvm@vger.kernel.org, iommu@lists.linux-foundation.org, alex.williamson@redhat.com, peterx@redhat.com Cc: jasowang@redhat.com, qemu-devel@nongnu.org, kevin.tian@intel.com, ashok.raj@intel.com, jacob.jun.pan@intel.com, tianyu.lan@intel.com, yi.l.liu@intel.com, jean-philippe.brucker@arm.com, "Liu, Yi L" <yi.l.liu@linux.intel.com> Subject: [Qemu-devel] [RFC PATCH 7/8] VFIO: Add new IOCTL for IOMMU TLB invalidate propagation Date: Wed, 26 Apr 2017 18:12:04 +0800 [thread overview] Message-ID: <1493201525-14418-8-git-send-email-yi.l.liu@intel.com> (raw) In-Reply-To: <1493201525-14418-1-git-send-email-yi.l.liu@intel.com> From: "Liu, Yi L" <yi.l.liu@linux.intel.com> This patch adds VFIO_IOMMU_TLB_INVALIDATE to propagate IOMMU TLB invalidate request from guest to host. In the case of SVM virtualization on VT-d, host IOMMU driver has no knowledge of caching structure updates unless the guest invalidation activities are passed down to the host. So a new IOCTL is needed to propagate the guest cache invalidation through VFIO. Signed-off-by: Liu, Yi L <yi.l.liu@linux.intel.com> --- include/uapi/linux/vfio.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 6b97987..50c51f8 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -564,6 +564,15 @@ struct vfio_device_svm { #define VFIO_IOMMU_SVM_BIND_TASK _IO(VFIO_TYPE, VFIO_BASE + 22) +/* For IOMMU TLB Invalidation Propagation */ +struct vfio_iommu_tlb_invalidate { + __u32 argsz; + __u32 length; + __u8 data[]; +}; + +#define VFIO_IOMMU_TLB_INVALIDATE _IO(VFIO_TYPE, VFIO_BASE + 23) + /* -------- Additional API for SPAPR TCE (Server POWERPC) IOMMU -------- */ /* -- 1.9.1
next prev parent reply other threads:[~2017-04-26 10:28 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 [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 ` Liu, Yi L [this message] 2017-04-26 10:12 ` [Qemu-devel] [RFC PATCH 7/8] VFIO: Add new IOCTL for IOMMU TLB invalidate propagation 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
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=1493201525-14418-8-git-send-email-yi.l.liu@intel.com \ --to=yi.l.liu@intel.com \ --cc=alex.williamson@redhat.com \ --cc=ashok.raj@intel.com \ --cc=iommu@lists.linux-foundation.org \ --cc=jacob.jun.pan@intel.com \ --cc=jasowang@redhat.com \ --cc=jean-philippe.brucker@arm.com \ --cc=kevin.tian@intel.com \ --cc=kvm@vger.kernel.org \ --cc=peterx@redhat.com \ --cc=qemu-devel@nongnu.org \ --cc=tianyu.lan@intel.com \ --cc=yi.l.liu@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: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.