hv: rename 'assign_iommu_device' and 'unassign_iommu_device'

- rename 'assign_iommu_device' to 'assign_pt_device'
- rename 'unassign_iommu_device' to 'unassign_pt_device'

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@inte.com>

Author: shiqingg

doc/developer-guides/hld/hv-vt-d.rst

@@ -326,9 +326,9 @@ The following API are provided during runtime:
 .. doxygenfunction:: resume_iommu
    :project: Project ACRN
 
-.. doxygenfunction:: assign_iommu_device
+.. doxygenfunction:: assign_pt_device
    :project: Project ACRN
 
-.. doxygenfunction:: unassign_iommu_device
+.. doxygenfunction:: unassign_pt_device
    :project: Project ACRN
 

hypervisor/arch/x86/vtd.c

@@ -1261,7 +1261,7 @@ void destroy_iommu_domain(struct iommu_domain *domain)
 	(void)memset(domain, 0U, sizeof(*domain));
 }
 
-int32_t assign_iommu_device(struct iommu_domain *domain, uint8_t bus, uint8_t devfun)
+int32_t assign_pt_device(struct iommu_domain *domain, uint8_t bus, uint8_t devfun)
 {
 	int32_t status = 0;
 	uint16_t bus_local = bus;
@@ -1283,7 +1283,7 @@ int32_t assign_iommu_device(struct iommu_domain *domain, uint8_t bus, uint8_t de
 	return status;
 }
 
-int32_t unassign_iommu_device(const struct iommu_domain *domain, uint8_t bus, uint8_t devfun)
+int32_t unassign_pt_device(const struct iommu_domain *domain, uint8_t bus, uint8_t devfun)
 {
 	int32_t status = 0;
 	uint16_t bus_local = bus;

hypervisor/common/hypercall.c

@@ -863,7 +863,7 @@ int32_t hcall_assign_ptdev(struct acrn_vm *vm, uint16_t vmid, uint64_t param)
 			}
 		}
 		if (bdf_valid && iommu_valid) {
-			ret = assign_iommu_device(target_vm->iommu,
+			ret = assign_pt_device(target_vm->iommu,
 				(uint8_t)(bdf >> 8U), (uint8_t)(bdf & 0xffU));
 		}
 	} else {
@@ -907,7 +907,7 @@ int32_t hcall_deassign_ptdev(struct acrn_vm *vm, uint16_t vmid, uint64_t param)
 		}
 
 		if (bdf_valid) {
-			ret = unassign_iommu_device(target_vm->iommu,
+			ret = unassign_pt_device(target_vm->iommu,
 				(uint8_t)(bdf >> 8U), (uint8_t)(bdf & 0xffU));
 		}
 	}

hypervisor/dm/vpci/vpci.c

@@ -309,7 +309,7 @@ static void assign_vdev_pt_iommu_domain(const struct pci_vdev *vdev)
 			hva2hpa(vm->arch_vm.nworld_eptp), 48U);
 	}
 
-	ret = assign_iommu_device(vm->iommu, (uint8_t)vdev->pdev->bdf.bits.b,
+	ret = assign_pt_device(vm->iommu, (uint8_t)vdev->pdev->bdf.bits.b,
 		(uint8_t)(vdev->pdev->bdf.value & 0xFFU));
 	if (ret != 0) {
 		panic("failed to assign iommu device!");
@@ -326,13 +326,13 @@ static void remove_vdev_pt_iommu_domain(const struct pci_vdev *vdev)
 	int32_t ret;
 	struct acrn_vm *vm = vdev->vpci->vm;
 
-	ret = unassign_iommu_device(vm->iommu, (uint8_t)vdev->pdev->bdf.bits.b,
+	ret = unassign_pt_device(vm->iommu, (uint8_t)vdev->pdev->bdf.bits.b,
 		(uint8_t)(vdev->pdev->bdf.value & 0xFFU));
 	if (ret != 0) {
 		/*
 		 *TODO
 		 * panic needs to be removed here
-		 * Currently unassign_iommu_device can fail for multiple reasons
+		 * Currently unassign_pt_device can fail for multiple reasons
 		 * Once all the reasons and methods to avoid them can be made sure
 		 * panic here is not necessary.
 		 */

hypervisor/include/arch/x86/vtd.h

@@ -553,7 +553,7 @@ struct iommu_domain;
  * @pre domain != NULL
  *
  */
-int32_t assign_iommu_device(struct iommu_domain *domain, uint8_t bus, uint8_t devfun);
+int32_t assign_pt_device(struct iommu_domain *domain, uint8_t bus, uint8_t devfun);
 
 /**
  * @brief Unassign a device specified by bus & devfun from a iommu domain .
@@ -570,7 +570,7 @@ int32_t assign_iommu_device(struct iommu_domain *domain, uint8_t bus, uint8_t de
  * @pre domain != NULL
  *
  */
-int32_t unassign_iommu_device(const struct iommu_domain *domain, uint8_t bus, uint8_t devfun);
+int32_t unassign_pt_device(const struct iommu_domain *domain, uint8_t bus, uint8_t devfun);
 
 /**
  * @brief Create a iommu domain for a VM specified by vm_id.