Re: [PATCH] iommu/vt-d: Flush old iotlb for kdump when the device gets context mapped

On 11/30/2016 at 10:26 PM, Joerg Roedel wrote: > On Wed, Nov 30, 2016 at 06:23:34PM +0800, Baoquan He wrote: >> OK, talked with Xunlei. The old cache could be entry with present bit >> set. > -EPARSE > > Anyway, what I was trying to say is, that the IOMMU TLB is tagged with > domain-ids, and that

Re: [PATCH 02/10] iommu/of: Prepare for deferred IOMMU configuration

Sricharan, Robin, I gave this series a go on ACPI and apart from an SMMU v3 fix-up it seems to work, more thorough testing required though. A key question below. On Wed, Nov 30, 2016 at 05:52:16AM +0530, Sricharan R wrote: > From: Robin Murphy > > IOMMU configuration

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

On 30/11/16 14:08, Auger Eric wrote: > Hi Will, > > On 30/11/2016 11:37, Will Deacon wrote: >> On Wed, Nov 30, 2016 at 10:49:33AM +0100, Auger Eric wrote: >>> On 15/11/2016 14:09, Eric Auger wrote: Following LPC discussions, we now report reserved regions through iommu-group sysfs

Re: [GIT PULL] iommu/arm-smmu: Updates for 4.10

On Tue, Nov 29, 2016 at 05:28:22PM +, Will Deacon wrote: > The following changes since commit a25f0944ba9b1d8a6813fd6f1a86f1bd59ac25a6: > > Linux 4.9-rc5 (2016-11-13 10:32:32 -0800) > > are available in the git repository at: > >

Re: [PATCH] iommu/vt-d: Flush old iotlb for kdump when the device gets context mapped

On Wed, Nov 30, 2016 at 06:23:34PM +0800, Baoquan He wrote: > OK, talked with Xunlei. The old cache could be entry with present bit > set. -EPARSE Anyway, what I was trying to say is, that the IOMMU TLB is tagged with domain-ids, and that there is also a context-cache which maps device-ids to

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

On Wed, 30 Nov 2016 11:14:22 +0100 Auger Eric wrote: > Hi Ganapat, > > On 30/11/2016 11:04, Ganapatrao Kulkarni wrote: > > Hi Eric, > > > > in you repo "https://github.com/eauger/linux/tree/v4.9-rc5-reserved-rfc-v3; > > there is 11th patch "pci: Enable overrides for

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

Hi Will, On 30/11/2016 11:37, Will Deacon wrote: > On Wed, Nov 30, 2016 at 10:49:33AM +0100, Auger Eric wrote: >> On 15/11/2016 14:09, Eric Auger wrote: >>> Following LPC discussions, we now report reserved regions through >>> iommu-group sysfs reserved_regions attribute file. >>> >>> Reserved

RE: [PATCH 06/10] iommu: of: Handle IOMMU lookup failure with deferred probing or error

Hi Robin, >On 30/11/16 07:54, Marek Szyprowski wrote: >> Hi Sricharan and Robin, >> >> >> On 2016-11-30 01:22, Sricharan R wrote: >>> From: Laurent Pinchart >>> >>> Failures to look up an IOMMU when parsing the DT iommus property need to >>> be handled

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

On 30/11/16 10:52, Ganapatrao Kulkarni wrote: > On Wed, Nov 30, 2016 at 3:44 PM, Auger Eric wrote: >> Hi Ganapat, >> >> On 30/11/2016 11:04, Ganapatrao Kulkarni wrote: >>> Hi Eric, >>> >>> in you repo "https://github.com/eauger/linux/tree/v4.9-rc5-reserved-rfc-v3; >>> there

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

On Wed, Nov 30, 2016 at 3:44 PM, Auger Eric wrote: > Hi Ganapat, > > On 30/11/2016 11:04, Ganapatrao Kulkarni wrote: >> Hi Eric, >> >> in you repo "https://github.com/eauger/linux/tree/v4.9-rc5-reserved-rfc-v3; >> there is 11th patch "pci: Enable overrides for missing ACS

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

Hi Eric, in you repo "https://github.com/eauger/linux/tree/v4.9-rc5-reserved-rfc-v3; there is 11th patch "pci: Enable overrides for missing ACS capabilities" is this patch part of some other series? thanks Ganapat On Wed, Nov 30, 2016 at 3:19 PM, Auger Eric wrote: > Hi,

Re: [PATCH 06/10] iommu: of: Handle IOMMU lookup failure with deferred probing or error

On 30/11/16 07:54, Marek Szyprowski wrote: > Hi Sricharan and Robin, > > > On 2016-11-30 01:22, Sricharan R wrote: >> From: Laurent Pinchart >> >> Failures to look up an IOMMU when parsing the DT iommus property need to >> be handled separately from

Re: [PATCH V3 0/8] IOMMU probe deferral support

Hi Sricharan, On Wed, Nov 30, 2016 at 06:04:13AM +0530, Sricharan wrote: > Hi Lorenzo, > > >-Original Message- > >From: linux-arm-kernel [mailto:linux-arm-kernel-boun...@lists.infradead.org] > >On Behalf Of Lorenzo Pieralisi > >Sent: Monday, November 28, 2016 11:44 PM > >To: Sricharan

RE: [PATCH v4 00/10] IOMMU probe deferral support

Hi Marek, > >On 2016-11-30 01:22, Sricharan R wrote: >> This series calls the dma ops configuration for the devices >> at a generic place so that it works for all busses. >> The dma_configure_ops for a device is now called during >> the device_attach callback just before the probe of the >>

RE: [PATCH 06/10] iommu: of: Handle IOMMU lookup failure with deferred probing or error

Hi, >Hi Sricharan and Robin, > > >On 2016-11-30 01:22, Sricharan R wrote: >> From: Laurent Pinchart >> >> Failures to look up an IOMMU when parsing the DT iommus property need to >> be handled separately from the .of_xlate() failures to support deferred

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

On Wed, Nov 30, 2016 at 10:49:33AM +0100, Auger Eric wrote: > On 15/11/2016 14:09, Eric Auger wrote: > > Following LPC discussions, we now report reserved regions through > > iommu-group sysfs reserved_regions attribute file. > > > > Reserved regions are populated through the IOMMU

Re: [PATCH] iommu/vt-d: Flush old iotlb for kdump when the device gets context mapped

On 11/30/16 at 05:53pm, Baoquan He wrote: > On 11/30/16 at 05:03pm, Baoquan He wrote: > > On 11/30/16 at 04:15pm, Xunlei Pang wrote: > > > On 11/29/2016 at 10:35 PM, Joerg Roedel wrote: > > > > On Thu, Nov 17, 2016 at 10:47:28AM +0800, Xunlei Pang wrote: > > > >> As per the comment, the code here

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

Hi Ganapat, On 30/11/2016 11:04, Ganapatrao Kulkarni wrote: > Hi Eric, > > in you repo "https://github.com/eauger/linux/tree/v4.9-rc5-reserved-rfc-v3; > there is 11th patch "pci: Enable overrides for missing ACS capabilities" > is this patch part of some other series? Actually this is a very

Re: [PATCH] iommu/vt-d: Flush old iotlb for kdump when the device gets context mapped

On 11/30/16 at 05:03pm, Baoquan He wrote: > On 11/30/16 at 04:15pm, Xunlei Pang wrote: > > On 11/29/2016 at 10:35 PM, Joerg Roedel wrote: > > > On Thu, Nov 17, 2016 at 10:47:28AM +0800, Xunlei Pang wrote: > > >> As per the comment, the code here only needs to flush context caches > > >> for the

Re: [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions

Hi, On 15/11/2016 14:09, Eric Auger wrote: > Following LPC discussions, we now report reserved regions through > iommu-group sysfs reserved_regions attribute file. > > Reserved regions are populated through the IOMMU get_resv_region callback > (former get_dm_regions), now implemented by

Re: [RFC v3 04/10] iommu: iommu_alloc_resv_region

Hi Joerg, On 29/11/2016 17:11, Joerg Roedel wrote: > On Tue, Nov 15, 2016 at 01:09:17PM +, Eric Auger wrote: >> +static inline struct iommu_resv_region * >> +iommu_alloc_resv_region(phys_addr_t start, size_t length, unsigned int prot) >> +{ >> +return NULL; >> +} >> + > > Will this

Re: [PATCH 4/5] iommu/exynos: Add default_domain check in iommu_attach_device

Hi Joerg, On 2016-11-29 17:48, Joerg Roedel wrote: On Thu, Nov 24, 2016 at 12:20:19PM +0100, Marek Szyprowski wrote: This patch adds default_domain check before calling exynos_iommu_detach_device. This path was intended only to cope with default domains, which are automatically attached by

Re: [PATCH] iommu/vt-d: Flush old iotlb for kdump when the device gets context mapped

On 11/30/16 at 04:15pm, Xunlei Pang wrote: > On 11/29/2016 at 10:35 PM, Joerg Roedel wrote: > > On Thu, Nov 17, 2016 at 10:47:28AM +0800, Xunlei Pang wrote: > >> As per the comment, the code here only needs to flush context caches > >> for the special domain 0 which is used to tag the > >>

Re: [PATCH] iommu/vt-d: Flush old iotlb for kdump when the device gets context mapped

On 11/29/2016 at 10:35 PM, Joerg Roedel wrote: > On Thu, Nov 17, 2016 at 10:47:28AM +0800, Xunlei Pang wrote: >> As per the comment, the code here only needs to flush context caches >> for the special domain 0 which is used to tag the >> non-present/erroneous caches, seems we should flush the old