linux-kernel - Re: [PATCH v14 00/10] Add Tegra241 (Grace) CMDQV Support (part 1/2)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <172502752365.3788306.13276843969148976864.b4-ty@kernel.org>
Date: Fri, 30 Aug 2024 17:12:12 +0100
From: Will Deacon <will@...nel.org>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	robin.murphy@....com,
	joro@...tes.org,
	thierry.reding@...il.com,
	vdumpa@...dia.com,
	jonathanh@...dia.com,
	linux-kernel@...r.kernel.org,
	iommu@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-tegra@...r.kernel.org,
	Jason Gunthorpe <jgg@...pe.ca>
Subject: Re: [PATCH v14 00/10] Add Tegra241 (Grace) CMDQV Support (part 1/2)

On Thu, 29 Aug 2024 15:34:29 -0700, Nicolin Chen wrote:
> NVIDIA's Tegra241 (Grace) SoC has a CMDQ-Virtualization (CMDQV) hardware
> that extends standard ARM SMMUv3 to support multiple command queues with
> virtualization capabilities. Though this is similar to the ECMDQ in SMMU
> v3.3, CMDQV provides additional Virtual Interfaces (VINTFs) allowing VMs
> to have their own VINTFs and Virtual Command Queues (VCMDQs). The VCMDQs
> can only execute a limited set of commands, mainly invalidation commands
> when exclusively used by the VMs, compared to the standard SMMUv3 CMDQ.
> 
> [...]

Thanks for this, Nicolin! I did drop the 'default' statement in the end,
as I think it's a bit overkill to fail the probe in that case.

Applied to will (for-joerg/arm-smmu/updates), thanks!

[01/10] iommu/arm-smmu-v3: Issue a batch of commands to the same cmdq
        https://git.kernel.org/will/c/56ae8866f3b4
[02/10] iommu/arm-smmu-v3: Pass in cmdq pointer to arm_smmu_cmdq_build_sync_cmd
        https://git.kernel.org/will/c/2ea1f0120f90
[03/10] iommu/arm-smmu-v3: Pass in cmdq pointer to arm_smmu_cmdq_init
        https://git.kernel.org/will/c/e736c895c45b
[04/10] iommu/arm-smmu-v3: Make symbols public for CONFIG_TEGRA241_CMDQV
        https://git.kernel.org/will/c/a7a08b857a32
[05/10] iommu/arm-smmu-v3: Add ARM_SMMU_OPT_TEGRA241_CMDQV
        https://git.kernel.org/will/c/b935a5b1c670
[06/10] iommu/arm-smmu-v3: Add acpi_smmu_iort_probe_model for impl
        https://git.kernel.org/will/c/6f3f9ff43d00
[07/10] iommu/arm-smmu-v3: Add struct arm_smmu_impl_ops
        https://git.kernel.org/will/c/6de80d619203
[08/10] iommu/arm-smmu-v3: Add in-kernel support for NVIDIA Tegra241 (Grace) CMDQV
        https://git.kernel.org/will/c/918eb5c856f6
[09/10] iommu/arm-smmu-v3: Start a new batch if new command is not supported
        https://git.kernel.org/will/c/f59e85490712
[10/10] iommu/tegra241-cmdqv: Limit CMDs for VCMDQs of a guest owned VINTF
        https://git.kernel.org/will/c/a9d40285bdef

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev