With a viommu object wrapping a potentially shareable S2 domain, a nested
domain should be allocated by associating to a viommu instead.
For drivers without a viommu support, keep the parent domain input, which
should be just viommu->hwpt->common.domain otherwise.
Signed-off-by: Nicolin Chen <nicol...@nvidia.com>
---
include/linux/iommu.h | 1 +
drivers/iommu/amd/iommu.c | 1 +
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 1 +
drivers/iommu/intel/iommu.c | 1 +
drivers/iommu/iommufd/hw_pagetable.c | 5 +++--
drivers/iommu/iommufd/selftest.c | 1 +
6 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 3a50f57b0861..9105478bdbcd 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -573,6 +573,7 @@ struct iommu_ops {
struct iommu_domain *(*domain_alloc)(unsigned iommu_domain_type);
struct iommu_domain *(*domain_alloc_user)(
struct device *dev, u32 flags, struct iommu_domain *parent,
+ struct iommufd_viommu *viommu,
const struct iommu_user_data *user_data);
struct iommu_domain *(*domain_alloc_paging)(struct device *dev);
struct iommu_domain *(*domain_alloc_sva)(struct device *dev,
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 8364cd6fa47d..3100ddcaf62e 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -2394,6 +2394,7 @@ static struct iommu_domain
*amd_iommu_domain_alloc(unsigned int type)
static struct iommu_domain *
amd_iommu_domain_alloc_user(struct device *dev, u32 flags,
struct iommu_domain *parent,
+ struct iommufd_viommu *viommu,
const struct iommu_user_data *user_data)
{
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 4e559e025149..4b836a5e9fde 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -3117,6 +3117,7 @@ static struct iommu_domain arm_smmu_blocked_domain = {
static struct iommu_domain *
arm_smmu_domain_alloc_user(struct device *dev, u32 flags,
struct iommu_domain *parent,
+ struct iommufd_viommu *viommu,
const struct iommu_user_data *user_data)
{
struct arm_smmu_master *master = dev_iommu_priv_get(dev);
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 9f6b0780f2ef..a8a66a954c27 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -3522,6 +3522,7 @@ static struct iommu_domain
*intel_iommu_domain_alloc(unsigned type)
static struct iommu_domain *
intel_iommu_domain_alloc_user(struct device *dev, u32 flags,
struct iommu_domain *parent,
+ struct iommufd_viommu *viommu,
const struct iommu_user_data *user_data)
{
struct device_domain_info *info = dev_iommu_priv_get(dev);
diff --git a/drivers/iommu/iommufd/hw_pagetable.c
b/drivers/iommu/iommufd/hw_pagetable.c
index d06bf6e6c19f..77a1d30031d2 100644
--- a/drivers/iommu/iommufd/hw_pagetable.c
+++ b/drivers/iommu/iommufd/hw_pagetable.c
@@ -137,7 +137,7 @@ iommufd_hwpt_paging_alloc(struct iommufd_ctx *ictx, struct
iommufd_ioas *ioas,
if (ops->domain_alloc_user) {
hwpt->domain = ops->domain_alloc_user(idev->dev, flags, NULL,
- user_data);
+ NULL, user_data);
if (IS_ERR(hwpt->domain)) {
rc = PTR_ERR(hwpt->domain);
hwpt->domain = NULL;
@@ -240,7 +240,8 @@ iommufd_hwpt_nested_alloc(struct iommufd_ctx *ictx,
hwpt->domain = ops->domain_alloc_user(idev->dev,
flags &
~IOMMU_HWPT_FAULT_ID_VALID,
- parent->common.domain, user_data);
+ parent->common.domain,
+ NULL, user_data);
if (IS_ERR(hwpt->domain)) {
rc = PTR_ERR(hwpt->domain);
hwpt->domain = NULL;
diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c
index 540437be168a..f4be87b49447 100644
--- a/drivers/iommu/iommufd/selftest.c
+++ b/drivers/iommu/iommufd/selftest.c
@@ -319,6 +319,7 @@ __mock_domain_alloc_nested(struct mock_iommu_domain
*mock_parent,
static struct iommu_domain *
mock_domain_alloc_user(struct device *dev, u32 flags,
struct iommu_domain *parent,
+ struct iommufd_viommu *viommu,
const struct iommu_user_data *user_data)
{
struct mock_iommu_domain *mock_parent;
--
2.43.0
