Re: [PATCH rc 7/8] iommu/vt-d: Wrap the dirty tracking loop to be a helper

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On 2024/2/8 16:23, Yi Liu wrote:
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -4730,23 +4730,35 @@ static void *intel_iommu_hw_info(struct device *dev, u32 *length, u32 *type)
  	return vtd;
  }
+static int
+device_set_dirty_tracking(struct list_head *devices, bool enable)
+{
+	struct device_domain_info *info;
+	int ret = 0;
+
+	list_for_each_entry(info, devices, link) {
+		ret = intel_pasid_setup_dirty_tracking(info->iommu, info->dev,
+						       IOMMU_NO_PASID, enable);
+		if (ret)
+			break;
+	}
+
+	return ret;
+}

Let's make this helper specific. Something like below.

/*
 * Set dirty tracking for the device list of a domain. The caller must
 * hold the domain->lock when calling it.
 */
static int device_list_set_dirty_tracking(...)

Best regards,
baolu




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