Commit 74f676cb authored by Kunkun Jiang's avatar Kunkun Jiang Committed by Zheng Zengkai
Browse files

iommu/arm-smmu-v3: Realize support_dirty_log iommu ops 

virt inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I3ZUKK


CVE: NA

------------------------------

We have implemented these interfaces required to support iommu
dirty log tracking. The last step is reporting this feature to
upper user, then the user can perform higher policy base on it.
For arm smmuv3, it is equal to ARM_SMMU_FEAT_HD.

Co-developed-by: default avatarKeqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: default avatarKunkun Jiang <jiangkunkun@huawei.com>
Reviewed-by: default avatarKeqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent 5e064fc0

drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c

+8 −0
Original line number Diff line number Diff line
@@ -3117,6 +3117,13 @@ static int arm_smmu_merge_page(struct iommu_domain *domain, unsigned long iova, 
	return ret;

}



static bool arm_smmu_support_dirty_log(struct iommu_domain *domain)

{

	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);



	return !!(smmu_domain->smmu->features & ARM_SMMU_FEAT_HD);

}



static int arm_smmu_switch_dirty_log(struct iommu_domain *domain, bool enable,

				     unsigned long iova, size_t size, int prot)

{
@@ -3444,6 +3451,7 @@ static struct iommu_ops arm_smmu_ops = { 
	.device_group		= arm_smmu_device_group,

	.domain_get_attr	= arm_smmu_domain_get_attr,

	.domain_set_attr	= arm_smmu_domain_set_attr,

	.support_dirty_log	= arm_smmu_support_dirty_log,

	.switch_dirty_log	= arm_smmu_switch_dirty_log,

	.sync_dirty_log		= arm_smmu_sync_dirty_log,

	.clear_dirty_log	= arm_smmu_clear_dirty_log,