From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: Vivek Kumar Gautam <vivek.gautam@arm.com>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
iommu@lists.linux-foundation.org,
virtualization@lists.linux-foundation.org, joro@8bytes.org,
will.deacon@arm.com, mst@redhat.com, robin.murphy@arm.com,
eric.auger@redhat.com, alex.williamson@redhat.com,
kevin.tian@intel.com, jacob.jun.pan@linux.intel.com,
yi.l.liu@intel.com, lorenzo.pieralisi@arm.com,
shameerali.kolothum.thodi@huawei.com
Subject: Re: [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault
Date: Mon, 29 Mar 2021 18:23:02 +0200 [thread overview]
Message-ID: <YGH+5pHtR6gWnimB@myrica> (raw)
In-Reply-To: <d8a81406-12c6-a5e1-7297-49c1a0a800ab@arm.com>
On Fri, Mar 12, 2021 at 06:39:05PM +0530, Vivek Kumar Gautam wrote:
> To complete the page request we would also need to send the response back to
> the host from virtio backend when handling page request. So the virtio
> command should also be accompanied with a vfio api to send the page request
> response back to the host. Isn't it?
> This is where the host smmuv3 can send PRI_RESP command to the device to
> complete the page fault.
It looks like Eric already has this in the VFIO series:
https://lore.kernel.org/linux-iommu/20210223210625.604517-14-eric.auger@redhat.com/
Thanks,
Jean
WARNING: multiple messages have this Message-ID (diff)
From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: Vivek Kumar Gautam <vivek.gautam@arm.com>
Cc: kevin.tian@intel.com, alex.williamson@redhat.com, mst@redhat.com,
will.deacon@arm.com, linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
iommu@lists.linux-foundation.org, robin.murphy@arm.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault
Date: Mon, 29 Mar 2021 18:23:02 +0200 [thread overview]
Message-ID: <YGH+5pHtR6gWnimB@myrica> (raw)
In-Reply-To: <d8a81406-12c6-a5e1-7297-49c1a0a800ab@arm.com>
On Fri, Mar 12, 2021 at 06:39:05PM +0530, Vivek Kumar Gautam wrote:
> To complete the page request we would also need to send the response back to
> the host from virtio backend when handling page request. So the virtio
> command should also be accompanied with a vfio api to send the page request
> response back to the host. Isn't it?
> This is where the host smmuv3 can send PRI_RESP command to the device to
> complete the page fault.
It looks like Eric already has this in the VFIO series:
https://lore.kernel.org/linux-iommu/20210223210625.604517-14-eric.auger@redhat.com/
Thanks,
Jean
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: Vivek Kumar Gautam <vivek.gautam@arm.com>
Cc: jacob.jun.pan@linux.intel.com, mst@redhat.com, joro@8bytes.org,
will.deacon@arm.com, linux-kernel@vger.kernel.org,
shameerali.kolothum.thodi@huawei.com,
virtualization@lists.linux-foundation.org, eric.auger@redhat.com,
iommu@lists.linux-foundation.org, yi.l.liu@intel.com,
lorenzo.pieralisi@arm.com, robin.murphy@arm.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault
Date: Mon, 29 Mar 2021 18:23:02 +0200 [thread overview]
Message-ID: <YGH+5pHtR6gWnimB@myrica> (raw)
In-Reply-To: <d8a81406-12c6-a5e1-7297-49c1a0a800ab@arm.com>
On Fri, Mar 12, 2021 at 06:39:05PM +0530, Vivek Kumar Gautam wrote:
> To complete the page request we would also need to send the response back to
> the host from virtio backend when handling page request. So the virtio
> command should also be accompanied with a vfio api to send the page request
> response back to the host. Isn't it?
> This is where the host smmuv3 can send PRI_RESP command to the device to
> complete the page fault.
It looks like Eric already has this in the VFIO series:
https://lore.kernel.org/linux-iommu/20210223210625.604517-14-eric.auger@redhat.com/
Thanks,
Jean
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
WARNING: multiple messages have this Message-ID (diff)
From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: Vivek Kumar Gautam <vivek.gautam@arm.com>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
iommu@lists.linux-foundation.org,
virtualization@lists.linux-foundation.org, joro@8bytes.org,
will.deacon@arm.com, mst@redhat.com, robin.murphy@arm.com,
eric.auger@redhat.com, alex.williamson@redhat.com,
kevin.tian@intel.com, jacob.jun.pan@linux.intel.com,
yi.l.liu@intel.com, lorenzo.pieralisi@arm.com,
shameerali.kolothum.thodi@huawei.com
Subject: Re: [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault
Date: Mon, 29 Mar 2021 18:23:02 +0200 [thread overview]
Message-ID: <YGH+5pHtR6gWnimB@myrica> (raw)
In-Reply-To: <d8a81406-12c6-a5e1-7297-49c1a0a800ab@arm.com>
On Fri, Mar 12, 2021 at 06:39:05PM +0530, Vivek Kumar Gautam wrote:
> To complete the page request we would also need to send the response back to
> the host from virtio backend when handling page request. So the virtio
> command should also be accompanied with a vfio api to send the page request
> response back to the host. Isn't it?
> This is where the host smmuv3 can send PRI_RESP command to the device to
> complete the page fault.
It looks like Eric already has this in the VFIO series:
https://lore.kernel.org/linux-iommu/20210223210625.604517-14-eric.auger@redhat.com/
Thanks,
Jean
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-03-29 16:23 UTC|newest]
Thread overview: 146+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-15 12:13 [PATCH RFC v1 00/15] iommu/virtio: Nested stage support with Arm Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 01/15] iommu/arm-smmu-v3: Create a Context Descriptor library Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 02/15] iommu: Add a simple PASID table library Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:11 ` Jean-Philippe Brucker
2021-03-03 17:11 ` Jean-Philippe Brucker
2021-03-03 17:11 ` Jean-Philippe Brucker
2021-03-03 17:11 ` Jean-Philippe Brucker
2021-03-12 12:47 ` Vivek Kumar Gautam
2021-03-12 12:47 ` Vivek Kumar Gautam
2021-03-12 12:47 ` Vivek Kumar Gautam
2021-03-29 16:25 ` Jean-Philippe Brucker
2021-03-29 16:25 ` Jean-Philippe Brucker
2021-03-29 16:25 ` Jean-Philippe Brucker
2021-03-29 16:25 ` Jean-Philippe Brucker
2021-01-15 12:13 ` [PATCH RFC v1 03/15] iommu/arm-smmu-v3: Update drivers to work with iommu-pasid-table Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 04/15] iommu/arm-smmu-v3: Update CD base address info for user-space Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:14 ` Jean-Philippe Brucker
2021-03-03 17:14 ` Jean-Philippe Brucker
2021-03-03 17:14 ` Jean-Philippe Brucker
2021-03-03 17:14 ` Jean-Philippe Brucker
2021-03-12 12:31 ` Vivek Kumar Gautam
2021-03-12 12:31 ` Vivek Kumar Gautam
2021-03-12 12:31 ` Vivek Kumar Gautam
2021-01-15 12:13 ` [PATCH RFC v1 05/15] iommu/arm-smmu-v3: Set sync op from consumer driver of cd-lib Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:15 ` Jean-Philippe Brucker
2021-03-03 17:15 ` Jean-Philippe Brucker
2021-03-03 17:15 ` Jean-Philippe Brucker
2021-03-03 17:15 ` Jean-Philippe Brucker
2021-03-12 12:49 ` Vivek Kumar Gautam
2021-03-12 12:49 ` Vivek Kumar Gautam
2021-03-12 12:49 ` Vivek Kumar Gautam
2021-01-15 12:13 ` [PATCH RFC v1 06/15] iommu/virtio: Add headers for table format probing Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:17 ` Jean-Philippe Brucker
2021-03-03 17:17 ` Jean-Philippe Brucker
2021-03-03 17:17 ` Jean-Philippe Brucker
2021-03-03 17:17 ` Jean-Philippe Brucker
2021-03-12 12:54 ` Vivek Kumar Gautam
2021-03-12 12:54 ` Vivek Kumar Gautam
2021-03-12 12:54 ` Vivek Kumar Gautam
2021-01-15 12:13 ` [PATCH RFC v1 07/15] iommu/virtio: Add " Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 08/15] iommu: Add asid_bits to arm smmu-v3 stage1 table info Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:18 ` Jean-Philippe Brucker
2021-03-03 17:18 ` Jean-Philippe Brucker
2021-03-03 17:18 ` Jean-Philippe Brucker
2021-03-03 17:18 ` Jean-Philippe Brucker
2021-03-12 12:57 ` Vivek Kumar Gautam
2021-03-12 12:57 ` Vivek Kumar Gautam
2021-03-12 12:57 ` Vivek Kumar Gautam
2021-01-15 12:13 ` [PATCH RFC v1 09/15] iommu/virtio: Update table format probing header Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:21 ` Jean-Philippe Brucker
2021-03-03 17:21 ` Jean-Philippe Brucker
2021-03-03 17:21 ` Jean-Philippe Brucker
2021-03-03 17:21 ` Jean-Philippe Brucker
2021-03-12 12:58 ` Vivek Kumar Gautam
2021-03-12 12:58 ` Vivek Kumar Gautam
2021-03-12 12:58 ` Vivek Kumar Gautam
2021-01-15 12:13 ` [PATCH RFC v1 10/15] iommu/virtio: Prepare to add attach pasid table infrastructure Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 11/15] iommu/virtio: Add headers for binding pasid table in iommu Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 12/15] iommu/virtio: Add support for INVALIDATE request Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 18:28 ` Jacob Pan
2021-03-03 18:28 ` Jacob Pan
2021-03-03 18:28 ` Jacob Pan
2021-03-04 5:58 ` Tian, Kevin
2021-03-04 5:58 ` Tian, Kevin
2021-03-04 5:58 ` Tian, Kevin
2021-03-04 5:58 ` Tian, Kevin
2021-03-04 6:16 ` Vivek Kumar Gautam
2021-03-04 6:16 ` Vivek Kumar Gautam
2021-03-04 6:16 ` Vivek Kumar Gautam
2021-01-15 12:13 ` [PATCH RFC v1 13/15] iommu/virtio: Attach Arm PASID tables when available Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-12 13:29 ` Vivek Kumar Gautam
2021-03-12 13:29 ` Vivek Kumar Gautam
2021-03-12 13:29 ` Vivek Kumar Gautam
2021-03-29 16:21 ` Jean-Philippe Brucker
2021-03-29 16:21 ` Jean-Philippe Brucker
2021-03-29 16:21 ` Jean-Philippe Brucker
2021-03-29 16:21 ` Jean-Philippe Brucker
2021-01-15 12:13 ` [PATCH RFC v1 14/15] iommu/virtio: Add support for Arm LPAE page table format Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-01-15 12:13 ` Vivek Gautam
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-03 17:25 ` Jean-Philippe Brucker
2021-03-12 13:09 ` Vivek Kumar Gautam
2021-03-12 13:09 ` Vivek Kumar Gautam
2021-03-12 13:09 ` Vivek Kumar Gautam
2021-03-29 16:23 ` Jean-Philippe Brucker [this message]
2021-03-29 16:23 ` Jean-Philippe Brucker
2021-03-29 16:23 ` Jean-Philippe Brucker
2021-03-29 16:23 ` Jean-Philippe Brucker
2021-04-06 6:24 ` Vivek Kumar Gautam
2021-04-06 6:24 ` Vivek Kumar Gautam
2021-04-06 6:24 ` Vivek Kumar Gautam
2021-01-19 9:03 ` [PATCH RFC v1 00/15] iommu/virtio: Nested stage support with Arm Auger Eric
2021-01-19 9:03 ` Auger Eric
2021-01-19 9:03 ` Auger Eric
2021-01-19 9:03 ` Auger Eric
2021-01-21 17:34 ` Vivek Kumar Gautam
2021-01-21 17:34 ` Vivek Kumar Gautam
2021-01-21 17:34 ` Vivek Kumar Gautam
2021-01-22 15:49 ` Shameerali Kolothum Thodi
2021-01-22 15:49 ` Shameerali Kolothum Thodi
2021-01-22 15:49 ` Shameerali Kolothum Thodi
2021-01-25 12:55 ` Vivek Kumar Gautam
2021-01-25 12:55 ` Vivek Kumar Gautam
2021-01-25 12:55 ` Vivek Kumar Gautam
2021-01-25 8:43 ` Auger Eric
2021-01-25 8:43 ` Auger Eric
2021-01-25 8:43 ` Auger Eric
2021-01-25 8:43 ` Auger Eric
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