From: Jason Gunthorpe <jgg@ziepe.ca>
To: Mostafa Saleh <smostafa@google.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev,
iommu@lists.linux.dev, catalin.marinas@arm.com, will@kernel.org,
maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com,
suzuki.poulose@arm.com, yuzenghui@huawei.com, joro@8bytes.org,
jean-philippe@linaro.org, mark.rutland@arm.com,
qperret@google.com, tabba@google.com, vdonnefort@google.com,
sebastianene@google.com, keirf@google.com
Subject: Re: [PATCH v6 03/25] iommu/arm-smmu-v3: Split code with hyp
Date: Fri, 1 May 2026 09:44:45 -0300 [thread overview]
Message-ID: <20260501124445.GC6912@ziepe.ca> (raw)
In-Reply-To: <20260501111928.259252-4-smostafa@google.com>
On Fri, May 01, 2026 at 11:19:05AM +0000, Mostafa Saleh wrote:
> +int arm_smmu_cmdq_build_cmd(u64 *cmd, struct arm_smmu_cmdq_ent *ent)
> +{
> + memset(cmd, 0, 1 << CMDQ_ENT_SZ_SHIFT);
> + cmd[0] |= FIELD_PREP(CMDQ_0_OP, ent->opcode);
Hopefully I get to it today, but I am going to post a series that will
move this logic into the headers while deleting arm_smmu_cmdq_ent. It
should be directly usable for pkvm as well to achieve this same split
without having to shove a giant inline into a header file.
https://github.com/jgunthorpe/linux/commits/iommu_pt_arm64/
cover-letter: Remove SMMUv3 struct arm_smmu_cmdq_ent
Jason
next prev parent reply other threads:[~2026-05-01 12:44 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 11:19 [PATCH v6 00/25] KVM: arm64: SMMUv3 driver for pKVM (trap and emulate) Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 01/25] KVM: arm64: Generalize trace clock Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 02/25] KVM: arm64: Donate MMIO to the hypervisor Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 03/25] iommu/arm-smmu-v3: Split code with hyp Mostafa Saleh
2026-05-01 12:44 ` Jason Gunthorpe [this message]
2026-05-04 12:13 ` Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 04/25] iommu/arm-smmu-v3: Move TLB range invalidation into common code Mostafa Saleh
2026-05-01 12:41 ` Jason Gunthorpe
2026-05-04 12:15 ` Mostafa Saleh
2026-05-05 16:17 ` Jason Gunthorpe
2026-05-05 16:43 ` Mostafa Saleh
2026-05-06 9:53 ` Jason Gunthorpe
2026-05-07 9:40 ` Mostafa Saleh
2026-05-09 23:29 ` Jason Gunthorpe
2026-05-11 11:45 ` Mostafa Saleh
2026-05-11 14:24 ` Jason Gunthorpe
2026-05-01 11:19 ` [PATCH v6 05/25] iommu/arm-smmu-v3: Move IDR parsing to common functions Mostafa Saleh
2026-05-01 12:47 ` Jason Gunthorpe
2026-05-04 12:16 ` Mostafa Saleh
2026-05-05 16:27 ` Jason Gunthorpe
2026-05-05 16:48 ` Mostafa Saleh
2026-05-06 9:56 ` Jason Gunthorpe
2026-05-07 10:13 ` Mostafa Saleh
2026-05-09 23:34 ` Jason Gunthorpe
2026-05-11 11:53 ` Mostafa Saleh
2026-05-11 14:30 ` Jason Gunthorpe
2026-05-01 11:19 ` [PATCH v6 06/25] iommu/io-pgtable-arm: Rework to use the iommu-pages API Mostafa Saleh
2026-05-01 12:24 ` Jason Gunthorpe
2026-05-04 12:19 ` Mostafa Saleh
2026-05-09 23:21 ` Jason Gunthorpe
2026-05-11 11:16 ` Mostafa Saleh
2026-05-11 14:18 ` Jason Gunthorpe
2026-05-13 21:54 ` Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 07/25] KVM: arm64: iommu: Introduce IOMMU driver infrastructure Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 08/25] KVM: arm64: iommu: Shadow host stage-2 page table Mostafa Saleh
2026-05-01 13:00 ` Jason Gunthorpe
2026-05-04 12:28 ` Mostafa Saleh
2026-05-09 23:27 ` Jason Gunthorpe
2026-05-11 11:24 ` Mostafa Saleh
2026-05-11 14:22 ` Jason Gunthorpe
2026-05-12 10:42 ` Mostafa Saleh
2026-05-12 12:36 ` Jason Gunthorpe
2026-05-01 11:19 ` [PATCH v6 09/25] KVM: arm64: iommu: Add memory pool Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 10/25] KVM: arm64: iommu: Support DABT for IOMMU Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 11/25] iommu/arm-smmu-v3-kvm: Add SMMUv3 driver Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 12/25] iommu/arm-smmu-v3-kvm: Add the kernel driver Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 13/25] iommu/arm-smmu-v3-kvm: Probe SMMU HW Mostafa Saleh
2026-05-01 12:51 ` Jason Gunthorpe
2026-05-04 12:30 ` Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 14/25] iommu/arm-smmu-v3-kvm: Add MMIO emulation Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 15/25] iommu/arm-smmu-v3-kvm: Shadow the command queue Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 16/25] iommu/arm-smmu-v3-kvm: Add CMDQ functions Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 17/25] iommu/arm-smmu-v3-kvm: Emulate CMDQ for host Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 18/25] iommu/arm-smmu-v3-kvm: Shadow stream table Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 19/25] iommu/arm-smmu-v3-kvm: Shadow STEs Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 20/25] iommu/arm-smmu-v3-kvm: Share other queues Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 21/25] iommu/arm-smmu-v3-kvm: Emulate GBPA Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 22/25] iommu/io-pgtable-arm: Support io-pgtable-arm in the hypervisor Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 23/25] iommu/arm-smmu-v3-kvm: Shadow the CPU stage-2 page table Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 24/25] iommu/arm-smmu-v3-kvm: Enable nesting Mostafa Saleh
2026-05-01 11:19 ` [PATCH v6 25/25] KVM: arm64: Add documentation for pKVM DMA isolation Mostafa Saleh
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