Re: [PATCH v6 17/25] iommu/qcom_iommu: Add an IOMMU_IDENTITIY_DOMAIN

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On 2023/8/14 23:36, Jason Gunthorpe wrote:
On Mon, Aug 14, 2023 at 02:32:33PM +0800, Baolu Lu wrote:

+	pm_runtime_get_sync(qcom_iommu->dev);
+	for (i = 0; i < fwspec->num_ids; i++) {
+		struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain, fwspec->ids[i]);
+
+		/* Disable the context bank: */
+		iommu_writel(ctx, ARM_SMMU_CB_SCTLR, 0);
+
+		ctx->domain = NULL;
Does setting ctx->domain to NULL still match this semantics?
Yes, I did not try to fix this driver. NULL means identity in the
ctx->domain.

Okay.

Best regards,
baolu



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