From: Eric van Tassell <evantass@amd.com>
To: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
linux-kernel@vger.kernel.org, iommu@lists.linux.dev
Cc: joro@8bytes.org, robin.murphy@arm.com, ashish.kalra@amd.com,
thomas.lendacky@amd.com, vasant.hegde@amd.com, jon.grimm@amd.com
Subject: Re: [PATCH 0/4] iommu/amd: Force SNP-enabled VFIO domain to 4K page size
Date: Mon, 16 Jan 2023 07:17:38 -0600 [thread overview]
Message-ID: <8d44d547-2da0-008a-e0eb-e42d40ab993d@amd.com> (raw)
In-Reply-To: <20230110143137.54517-1-suravee.suthikulpanit@amd.com>
what commit should this series apply onto?
-evt
On 1/10/23 08:31, Suravee Suthikulpanit wrote:
> To support VFIO pass-through device with SNP-enabled guest, IOMMU needs to
> setup IOMMU page table with matching page size to the RMP. In order for
> the IOMMU driver to setup page table appropriately, it needs to determine:
>
> 1. If an IOMMU domain is a VFIO domain (PATCH 1)
> 2. If an IOMMU domain belongs to an SNP-enabled guest (PATCH 2,3)
> 3. Appropriate page size the IOMMU domain (PATCH 4)
>
> Please note that patch 2/4 is a preparatory patch for an upcoming series
> to support SNP, which implements the call-back for the struct
> amd_iommu_svm_ops.is_snp_guest().
>
> Best Regards,
> Suravee
>
> Suravee Suthikulpanit (4):
> iommu/amd: Introduce Protection-domain flag VFIO
> iommu/amd: Introduce structure amd_iommu_svm_ops.is_snp_guest()
> iommu: Introduce IOMMU call-back for processing struct KVM assigned to
> VFIO
> iommu/amd: Force SNP-enabled VFIO domain to 4K page size
>
> drivers/iommu/amd/amd_iommu_types.h | 3 ++
> drivers/iommu/amd/iommu.c | 45 +++++++++++++++++++++++++++--
> drivers/iommu/iommu.c | 10 +++++++
> drivers/vfio/vfio_main.c | 1 +
> include/linux/amd-iommu.h | 6 ++++
> include/linux/iommu.h | 4 +++
> 6 files changed, 67 insertions(+), 2 deletions(-)
>
prev parent reply other threads:[~2023-01-16 13:19 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-10 14:31 [PATCH 0/4] iommu/amd: Force SNP-enabled VFIO domain to 4K page size Suravee Suthikulpanit
2023-01-10 14:31 ` [PATCH 1/4] iommu/amd: Introduce Protection-domain flag VFIO Suravee Suthikulpanit
2023-01-11 3:31 ` kernel test robot
2023-01-13 15:33 ` Jason Gunthorpe
2023-01-19 8:54 ` Kalra, Ashish
2023-01-19 17:44 ` Jason Gunthorpe
2023-01-20 15:12 ` Kalra, Ashish
2023-01-20 16:13 ` Jason Gunthorpe
2023-01-20 17:01 ` Kalra, Ashish
2023-01-20 17:50 ` Jason Gunthorpe
2023-01-20 19:55 ` Kalra, Ashish
2023-01-20 22:42 ` Tom Lendacky
2023-01-21 0:09 ` Jason Gunthorpe
2023-01-10 14:31 ` [PATCH 2/4] iommu/amd: Introduce structure amd_iommu_svm_ops.is_snp_guest() Suravee Suthikulpanit
2023-01-10 14:31 ` [PATCH 3/4] iommu: Introduce IOMMU call-back for processing struct KVM assigned to VFIO Suravee Suthikulpanit
2023-01-10 15:11 ` Robin Murphy
2023-01-17 4:20 ` Suthikulpanit, Suravee
2023-01-17 12:51 ` Robin Murphy
2023-01-13 15:35 ` Jason Gunthorpe
2023-01-17 5:31 ` Suthikulpanit, Suravee
2023-01-17 14:19 ` Jason Gunthorpe
2023-01-10 14:31 ` [PATCH 4/4] iommu/amd: Force SNP-enabled VFIO domain to 4K page size Suravee Suthikulpanit
2023-01-17 13:10 ` Eric van Tassell
2023-01-16 13:17 ` Eric van Tassell [this message]
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