From: Jason Gunthorpe <jgg@nvidia.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: joro@8bytes.org, will@kernel.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, hch@lst.de,
baolu.lu@linux.intel.com
Subject: Re: [PATCH v2 2/8] iommu: Validate that devices match domains
Date: Mon, 30 Jan 2023 11:59:13 -0400 [thread overview]
Message-ID: <Y9fpUTg9wN+SXD+x@nvidia.com> (raw)
In-Reply-To: <0f78ba36a7b31a0d534416e56ea0f1af0efc2659.1674753627.git.robin.murphy@arm.com>
On Thu, Jan 26, 2023 at 06:26:17PM +0000, Robin Murphy wrote:
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index 3589d1b8f922..86fa52025e75 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -95,6 +95,7 @@ struct iommu_domain_geometry {
> struct iommu_domain {
> unsigned type;
> const struct iommu_domain_ops *ops;
> + const struct iommu_ops *owner; /* Whose domain_alloc we came from */
For some reason I thought we were trying to save bytes in this struct?
Putting a pointer back to iommu_ops in iommu_domain_ops would allow
that, then it is just domain->ops->owner
Regardless,
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
next prev parent reply other threads:[~2023-01-30 15:59 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 18:26 [PATCH v2 0/8] iommu: The early demise of bus ops Robin Murphy
2023-01-26 18:26 ` [PATCH v2 1/8] iommu: Decouple iommu_present() from " Robin Murphy
2023-01-28 7:55 ` Baolu Lu
2023-01-30 17:31 ` Jason Gunthorpe
2023-01-30 18:21 ` Robin Murphy
2023-01-26 18:26 ` [PATCH v2 2/8] iommu: Validate that devices match domains Robin Murphy
2023-01-28 8:04 ` Baolu Lu
2023-01-30 15:59 ` Jason Gunthorpe [this message]
2023-01-26 18:26 ` [PATCH v2 3/8] iommu: Add lockdep annotations for group list iterators Robin Murphy
2023-01-28 8:08 ` Baolu Lu
2023-01-28 12:20 ` Baolu Lu
2023-01-30 14:59 ` Robin Murphy
2023-01-26 18:26 ` [PATCH v2 4/8] iommu: Factor out some helpers Robin Murphy
2023-01-28 8:12 ` Baolu Lu
2023-01-30 16:38 ` Jason Gunthorpe
2023-01-30 18:05 ` Robin Murphy
2023-01-30 18:20 ` Jason Gunthorpe
2023-01-30 23:33 ` Robin Murphy
2023-01-31 19:54 ` Jason Gunthorpe
2023-01-26 18:26 ` [PATCH v2 5/8] iommu: Switch __iommu_domain_alloc() to device ops Robin Murphy
2023-01-26 23:22 ` Jacob Pan
2023-01-27 11:42 ` Robin Murphy
2023-01-27 16:32 ` Jacob Pan
2023-01-28 8:21 ` Baolu Lu
2023-01-30 17:51 ` Jason Gunthorpe
2023-01-26 18:26 ` [PATCH v2 6/8] iommu/arm-smmu: Don't register fwnode for legacy binding Robin Murphy
2023-01-30 17:14 ` Jason Gunthorpe
2023-01-26 18:26 ` [PATCH v2 7/8] iommu: Retire bus ops Robin Murphy
2023-01-28 12:10 ` Baolu Lu
2023-01-28 12:55 ` kernel test robot
2023-01-30 14:20 ` Jason Gunthorpe
2023-01-30 17:09 ` Jason Gunthorpe
2023-01-26 18:26 ` [PATCH v2 8/8] iommu: Clean up open-coded ownership checks Robin Murphy
2023-01-30 17:10 ` Jason Gunthorpe
2023-01-30 6:45 ` [PATCH v2 0/8] iommu: The early demise of bus ops Christoph Hellwig
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