From: Nicolin Chen <nicolinc@nvidia.com>
To: <will@kernel.org>, <robin.murphy@arm.com>
Cc: <joro@8bytes.org>, <jgg@nvidia.com>, <thierry.reding@gmail.com>,
<vdumpa@nvidia.com>, <jonathanh@nvidia.com>,
<linux-kernel@vger.kernel.org>, <iommu@lists.linux.dev>,
<linux-arm-kernel@lists.infradead.org>,
<linux-tegra@vger.kernel.org>
Subject: Re: [PATCH v4 0/6] Add Tegra241 (Grace) CMDQV Support (part 1/2)
Date: Fri, 12 Apr 2024 12:10:55 -0700 [thread overview]
Message-ID: <ZhmHPyV6E/quh1O4@Asurada-Nvidia> (raw)
In-Reply-To: <cover.1711690673.git.nicolinc@nvidia.com>
On Thu, Mar 28, 2024 at 11:14:04PM -0700, Nicolin Chen wrote:
> It's available on Github:
> https://github.com/nicolinc/iommufd/commits/vcmdq_in_kernel-v1
>
> And the part-2 series is currently WIP, with a pair of drafts available:
> https://github.com/nicolinc/linux-nvidia-6.5/commits/iommufd_nesting-vcmdq/
> https://github.com/nicolinc/qemu/commits/wip/iommufd_vcmdq/
> It's planned to send for review after nested SMMU kernel patches.
>
> Note that this in-kernel support isn't confined to host kernels running
> on Grace-powered servers, but is also used by guest kernels running on
> VMs virtualized on those servers. So, those VMs must install the driver,
> ideally before the part 2 is merged. So, later those servers would only
> need to upgrade their host kernels without bothering the VMs.
>
> Thank you!
>
> Changelog
> v4:
In light of its user-space series (RFC) for VIOMMU infrastructure
review, I'll soon post a v5 by reorganizing the driver functions,
so that some of the helpers can be reused by the VIOMMU callbacks.
Most of the updates will be in the driver patch. So all others are
likely the same.
Thanks
Nicolin
prev parent reply other threads:[~2024-04-12 19:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-29 6:14 [PATCH v4 0/6] Add Tegra241 (Grace) CMDQV Support (part 1/2) Nicolin Chen
2024-03-29 6:14 ` [PATCH v4 1/6] iommu/arm-smmu-v3: Add CS_NONE quirk Nicolin Chen
2024-03-29 6:14 ` [PATCH v4 2/6] iommu/arm-smmu-v3: Make arm_smmu_cmdq_init reusable Nicolin Chen
2024-03-29 6:14 ` [PATCH v4 3/6] iommu/arm-smmu-v3: Make __arm_smmu_cmdq_skip_err reusable Nicolin Chen
2024-03-29 6:14 ` [PATCH v4 4/6] iommu/arm-smmu-v3: Pass in cmdq pointer to arm_smmu_cmdq_issue_cmdlist() Nicolin Chen
2024-03-29 6:14 ` [PATCH v4 5/6] iommu/arm-smmu-v3: Add in-kernel support for NVIDIA Tegra241 (Grace) CMDQV Nicolin Chen
2024-03-29 6:14 ` [PATCH v4 6/6] iommu/tegra241-cmdqv: Limit CMDs for guest owned VINTF Nicolin Chen
2024-04-12 19:10 ` Nicolin Chen [this message]
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