76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _IO_IOMMU_H_
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#define _IO_IOMMU_H_
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typedef int (*iommu_init_func_t)(void);
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typedef void (*iommu_cleanup_func_t)(void);
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typedef void (*iommu_enable_func_t)(void);
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typedef void (*iommu_disable_func_t)(void);
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typedef void *(*iommu_create_domain_t)(vm_paddr_t maxaddr);
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typedef void (*iommu_destroy_domain_t)(void *domain);
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typedef uint64_t (*iommu_create_mapping_t)(void *domain, vm_paddr_t gpa,
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vm_paddr_t hpa, uint64_t len);
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typedef uint64_t (*iommu_remove_mapping_t)(void *domain, vm_paddr_t gpa,
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uint64_t len);
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typedef void (*iommu_add_device_t)(void *domain, uint16_t rid);
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typedef void (*iommu_remove_device_t)(void *dom, uint16_t rid);
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typedef void (*iommu_invalidate_tlb_t)(void *dom);
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struct iommu_ops {
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iommu_init_func_t init; /* module wide */
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iommu_cleanup_func_t cleanup;
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iommu_enable_func_t enable;
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iommu_disable_func_t disable;
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iommu_create_domain_t create_domain; /* domain-specific */
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iommu_destroy_domain_t destroy_domain;
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iommu_create_mapping_t create_mapping;
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iommu_remove_mapping_t remove_mapping;
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iommu_add_device_t add_device;
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iommu_remove_device_t remove_device;
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iommu_invalidate_tlb_t invalidate_tlb;
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};
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extern struct iommu_ops iommu_ops_intel;
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extern struct iommu_ops iommu_ops_amd;
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void iommu_init(void);
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void iommu_cleanup(void);
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void *iommu_host_domain(void);
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void *iommu_create_domain(vm_paddr_t maxaddr);
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void iommu_destroy_domain(void *dom);
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void iommu_create_mapping(void *dom, vm_paddr_t gpa, vm_paddr_t hpa,
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size_t len);
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void iommu_remove_mapping(void *dom, vm_paddr_t gpa, size_t len);
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void iommu_add_device(void *dom, uint16_t rid);
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void iommu_remove_device(void *dom, uint16_t rid);
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void iommu_invalidate_tlb(void *domain);
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#endif
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