From: Jason Gunthorpe <jgg@nvidia.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: kevin.tian@intel.com, tglx@linutronix.de, maz@kernel.org,
joro@8bytes.org, will@kernel.org, robin.murphy@arm.com,
shuah@kernel.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, eric.auger@redhat.com,
baolu.lu@linux.intel.com, yi.l.liu@intel.com,
yury.norov@gmail.com, jacob.pan@linux.microsoft.com,
patches@lists.linux.dev
Subject: Re: [PATCH v2 7/7] iommu: Turn iova_cookie to dma-iommu private pointer
Date: Thu, 20 Feb 2025 13:50:55 -0400 [thread overview]
Message-ID: <20250220175055.GG50639@nvidia.com> (raw)
In-Reply-To: <949e28875e01646feac5c4951b63723579d29b36.1740014950.git.nicolinc@nvidia.com>
On Wed, Feb 19, 2025 at 05:31:42PM -0800, Nicolin Chen wrote:
> Now that iommufd does not rely on dma-iommu.c for any purpose. We can
> combine the dma-iommu.c iova_cookie and the iommufd_hwpt under the same
> union. This union is effectively 'owner data' and can be used by the
> entity that allocated the domain. Note that legacy vfio type1 flows
> continue to use dma-iommu.c for sw_msi and still need iova_cookie.
>
> Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
> ---
> include/linux/iommu.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
next prev parent reply other threads:[~2025-02-20 17:54 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-20 1:31 [PATCH v2 0/7] iommu: Add MSI mapping support with nested SMMU (Part-1 core) Nicolin Chen
2025-02-20 1:31 ` [PATCH v2 1/7] genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie Nicolin Chen
2025-02-21 9:28 ` Thomas Gleixner
2025-02-21 11:10 ` Joerg Roedel
2025-02-21 13:41 ` Jason Gunthorpe
2025-02-21 14:00 ` Joerg Roedel
2025-02-21 14:05 ` Jason Gunthorpe
2025-02-20 1:31 ` [PATCH v2 2/7] genirq/msi: Refactor iommu_dma_compose_msi_msg() Nicolin Chen
2025-02-21 9:28 ` Thomas Gleixner
2025-02-20 1:31 ` [PATCH v2 3/7] iommu: Make iommu_dma_prepare_msi() into a generic operation Nicolin Chen
2025-02-21 15:39 ` Robin Murphy
2025-02-21 16:44 ` Jason Gunthorpe
2025-02-27 11:21 ` Robin Murphy
2025-02-27 15:32 ` Jason Gunthorpe
2025-02-27 17:46 ` Nicolin Chen
2025-02-27 19:47 ` Jason Gunthorpe
2025-02-20 1:31 ` [PATCH v2 4/7] irqchip: Have CONFIG_IRQ_MSI_IOMMU be selected by irqchips that need it Nicolin Chen
2025-02-21 9:30 ` Thomas Gleixner
2025-02-21 14:48 ` Jason Gunthorpe
2025-02-20 1:31 ` [PATCH v2 5/7] iommu: Turn fault_data to iommufd private pointer Nicolin Chen
2025-02-20 17:50 ` Jason Gunthorpe
2025-02-20 1:31 ` [PATCH v2 6/7] iommufd: Implement sw_msi support natively Nicolin Chen
2025-02-21 14:51 ` Jason Gunthorpe
2025-02-27 19:33 ` Jason Gunthorpe
2025-02-20 1:31 ` [PATCH v2 7/7] iommu: Turn iova_cookie to dma-iommu private pointer Nicolin Chen
2025-02-20 17:50 ` Jason Gunthorpe [this message]
2025-02-21 14:39 ` Jason Gunthorpe
2025-02-21 15:23 ` Robin Murphy
2025-02-21 16:48 ` Jason Gunthorpe
2025-02-26 2:25 ` Nicolin Chen
2025-02-26 17:36 ` Jason Gunthorpe
2025-02-26 18:57 ` Nicolin Chen
2025-02-26 19:18 ` Jason Gunthorpe
2025-02-21 14:59 ` [PATCH v2 0/7] iommu: Add MSI mapping support with nested SMMU (Part-1 core) Jason Gunthorpe
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