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From: Yi Liu <yi.l.liu@intel.com>
To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com,
	kevin.tian@intel.com, robin.murphy@arm.com,
	baolu.lu@linux.intel.com
Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com,
	kvm@vger.kernel.org, mjrosato@linux.ibm.com,
	chao.p.peng@linux.intel.com, yi.l.liu@intel.com,
	yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com,
	shameerali.kolothum.thodi@huawei.com, lulu@redhat.com,
	suravee.suthikulpanit@amd.com, iommu@lists.linux.dev,
	linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
	zhenzhong.duan@intel.com, joao.m.martins@oracle.com,
	xin.zeng@intel.com
Subject: [PATCH v6 5/8] iommu/vt-d: Make domain attach helpers to be extern
Date: Fri, 20 Oct 2023 02:32:43 -0700	[thread overview]
Message-ID: <20231020093246.17015-6-yi.l.liu@intel.com> (raw)
In-Reply-To: <20231020093246.17015-1-yi.l.liu@intel.com>

This makes the helpers visible to nested.c.

Suggested-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
---
 drivers/iommu/intel/iommu.c | 15 ++++++---------
 drivers/iommu/intel/iommu.h |  7 +++++++
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 8d78149e793e..b47025fbdea4 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -282,7 +282,6 @@ static LIST_HEAD(dmar_satc_units);
 #define for_each_rmrr_units(rmrr) \
 	list_for_each_entry(rmrr, &dmar_rmrr_units, list)
 
-static void device_block_translation(struct device *dev);
 static void intel_iommu_domain_free(struct iommu_domain *domain);
 
 int dmar_disabled = !IS_ENABLED(CONFIG_INTEL_IOMMU_DEFAULT_ON);
@@ -560,7 +559,7 @@ static unsigned long domain_super_pgsize_bitmap(struct dmar_domain *domain)
 }
 
 /* Some capabilities may be different across iommus */
-static void domain_update_iommu_cap(struct dmar_domain *domain)
+void domain_update_iommu_cap(struct dmar_domain *domain)
 {
 	domain_update_iommu_coherency(domain);
 	domain->iommu_superpage = domain_update_iommu_superpage(domain, NULL);
@@ -1778,8 +1777,7 @@ static struct dmar_domain *alloc_domain(unsigned int type)
 	return domain;
 }
 
-static int domain_attach_iommu(struct dmar_domain *domain,
-			       struct intel_iommu *iommu)
+int domain_attach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu)
 {
 	struct iommu_domain_info *info, *curr;
 	unsigned long ndomains;
@@ -1828,8 +1826,7 @@ static int domain_attach_iommu(struct dmar_domain *domain,
 	return ret;
 }
 
-static void domain_detach_iommu(struct dmar_domain *domain,
-				struct intel_iommu *iommu)
+void domain_detach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu)
 {
 	struct iommu_domain_info *info;
 
@@ -3974,7 +3971,7 @@ static void dmar_remove_one_dev_info(struct device *dev)
  * all DMA requests without PASID from the device are blocked. If the page
  * table has been set, clean up the data structures.
  */
-static void device_block_translation(struct device *dev)
+void device_block_translation(struct device *dev)
 {
 	struct device_domain_info *info = dev_iommu_priv_get(dev);
 	struct intel_iommu *iommu = info->iommu;
@@ -4109,8 +4106,8 @@ static void intel_iommu_domain_free(struct iommu_domain *domain)
 		domain_exit(to_dmar_domain(domain));
 }
 
-static int prepare_domain_attach_device(struct iommu_domain *domain,
-					struct device *dev)
+int prepare_domain_attach_device(struct iommu_domain *domain,
+				 struct device *dev)
 {
 	struct dmar_domain *dmar_domain = to_dmar_domain(domain);
 	struct intel_iommu *iommu;
diff --git a/drivers/iommu/intel/iommu.h b/drivers/iommu/intel/iommu.h
index ff55184456dd..b4560983b8b9 100644
--- a/drivers/iommu/intel/iommu.h
+++ b/drivers/iommu/intel/iommu.h
@@ -860,6 +860,13 @@ int qi_submit_sync(struct intel_iommu *iommu, struct qi_desc *desc,
  */
 #define QI_OPT_WAIT_DRAIN		BIT(0)
 
+int domain_attach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu);
+void domain_detach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu);
+void device_block_translation(struct device *dev);
+int prepare_domain_attach_device(struct iommu_domain *domain,
+				 struct device *dev);
+void domain_update_iommu_cap(struct dmar_domain *domain);
+
 int dmar_ir_support(void);
 
 void *alloc_pgtable_page(int node, gfp_t gfp);
-- 
2.34.1


  parent reply	other threads:[~2023-10-20  9:33 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-20  9:32 [PATCH v6 0/8] Add Intel VT-d nested translation (part 1/2) Yi Liu
2023-10-20  9:32 ` [PATCH v6 1/8] iommufd: Add data structure for Intel VT-d stage-1 domain allocation Yi Liu
2023-10-20  9:32 ` [PATCH v6 2/8] iommu/vt-d: Extend dmar_domain to support nested domain Yi Liu
2023-10-20  9:32 ` [PATCH v6 3/8] iommu/vt-d: Add helper for nested domain allocation Yi Liu
2023-10-20 11:49   ` Baolu Lu
2023-10-23 11:00     ` Liu, Yi L
2023-10-20  9:32 ` [PATCH v6 4/8] iommu/vt-d: Add helper to setup pasid nested translation Yi Liu
2023-10-20  9:32 ` Yi Liu [this message]
2023-10-20 12:20   ` [PATCH v6 5/8] iommu/vt-d: Make domain attach helpers to be extern Baolu Lu
2023-10-20  9:32 ` [PATCH v6 6/8] iommu/vt-d: Set the nested domain to a device Yi Liu
2023-10-20  9:32 ` [PATCH v6 7/8] iommu/vt-d: Add nested domain allocation Yi Liu
2023-10-21  3:07   ` Baolu Lu
2023-10-23 11:11     ` Liu, Yi L
2023-10-20  9:32 ` [PATCH v6 8/8] iommu/vt-d: Disallow read-only mappings to nest parent domain Yi Liu
2023-10-21  3:24   ` Baolu Lu
2023-10-23 11:15     ` Liu, Yi L
2023-10-23 12:18       ` Baolu Lu
2023-10-24  2:06         ` Liu, Yi L

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