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From: Vivek Kumar Gautam <vivek.gautam@arm.com>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>
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 09/15] iommu/virtio: Update table format probing header
Date: Fri, 12 Mar 2021 18:28:31 +0530	[thread overview]
Message-ID: <84bd0439-9517-37b7-8827-08c6effdadd6@arm.com> (raw)
In-Reply-To: <YD/Fiuxd9/kThGxt@myrica>



On 3/3/21 10:51 PM, Jean-Philippe Brucker wrote:
> On Fri, Jan 15, 2021 at 05:43:36PM +0530, Vivek Gautam wrote:
>> Add info about asid_bits and additional flags to table format
>> probing header.
>>
>> Signed-off-by: Vivek Gautam <vivek.gautam@arm.com>
>> Cc: Joerg Roedel <joro@8bytes.org>
>> Cc: Will Deacon <will.deacon@arm.com>
>> Cc: Michael S. Tsirkin <mst@redhat.com>
>> Cc: Robin Murphy <robin.murphy@arm.com>
>> Cc: Jean-Philippe Brucker <jean-philippe@linaro.org>
>> Cc: Eric Auger <eric.auger@redhat.com>
>> Cc: Alex Williamson <alex.williamson@redhat.com>
>> Cc: Kevin Tian <kevin.tian@intel.com>
>> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
>> Cc: Liu Yi L <yi.l.liu@intel.com>
>> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
>> Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
>> ---
>>   include/uapi/linux/virtio_iommu.h | 5 ++++-
>>   1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/include/uapi/linux/virtio_iommu.h b/include/uapi/linux/virtio_iommu.h
>> index 43821e33e7af..8a0624bab4b2 100644
>> --- a/include/uapi/linux/virtio_iommu.h
>> +++ b/include/uapi/linux/virtio_iommu.h
>> @@ -169,7 +169,10 @@ struct virtio_iommu_probe_pasid_size {
>>   struct virtio_iommu_probe_table_format {
>>   	struct virtio_iommu_probe_property	head;
>>   	__le16					format;
>> -	__u8					reserved[2];
>> +	__le16					asid_bits;
>> +
>> +	__le32					flags;
> 
> This struct should only contain the head and format fields. asid and flags
> should go in a specialized structure - virtio_iommu_probe_pgt_arm64 in the
> latest spec draft, where I dropped the asid_bits field in favor of an
> "ASID16" flag.

Right, will take care of this looking at the spec draft.

Best regards
Vivek

> 
> Thanks,
> Jean
> 

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  reply	other threads:[~2021-03-12 13:01 UTC|newest]

Thread overview: 44+ 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 ` [PATCH RFC v1 01/15] iommu/arm-smmu-v3: Create a Context Descriptor library Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 02/15] iommu: Add a simple PASID table library Vivek Gautam
2021-03-03 17:11   ` Jean-Philippe Brucker
2021-03-12 12:47     ` Vivek Kumar Gautam
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 ` [PATCH RFC v1 04/15] iommu/arm-smmu-v3: Update CD base address info for user-space Vivek Gautam
2021-03-03 17:14   ` Jean-Philippe Brucker
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
2021-03-03 17:15   ` Jean-Philippe Brucker
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
2021-03-03 17:17   ` Jean-Philippe Brucker
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 ` [PATCH RFC v1 08/15] iommu: Add asid_bits to arm smmu-v3 stage1 table info Vivek Gautam
2021-03-03 17:18   ` Jean-Philippe Brucker
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
2021-03-03 17:21   ` Jean-Philippe Brucker
2021-03-12 12:58     ` Vivek Kumar Gautam [this message]
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 ` [PATCH RFC v1 11/15] iommu/virtio: Add headers for binding pasid table in iommu Vivek Gautam
2021-01-15 12:13 ` [PATCH RFC v1 12/15] iommu/virtio: Add support for INVALIDATE request Vivek Gautam
2021-03-03 18:28   ` Jacob Pan
2021-03-04  5:58     ` Tian, Kevin
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
2021-03-03 17:25   ` Jean-Philippe Brucker
2021-03-12 13:29     ` Vivek Kumar Gautam
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 ` [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault Vivek Gautam
2021-03-03 17:25   ` Jean-Philippe Brucker
2021-03-12 13:09     ` Vivek Kumar Gautam
2021-03-29 16:23       ` Jean-Philippe Brucker
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
2021-01-21 17:34   ` Vivek Kumar Gautam
2021-01-22 15:49     ` Shameerali Kolothum Thodi
2021-01-25 12:55       ` Vivek Kumar Gautam
2021-01-25  8:43     ` Auger Eric

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