46 lines
978 B
C
46 lines
978 B
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2023 Google LLC
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* Author: Mostafa Saleh <smostafa@google.com>
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*/
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#ifndef __KVM_DEVICE_H
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#define __KVM_DEVICE_H
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#include <asm/kvm_host.h>
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/*
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* @base: physical address of MMIO resource.
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* @size: size of resource in bytes.
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*/
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struct pkvm_dev_resource {
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u64 base;
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u64 size;
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};
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/*
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* @id: hypervisor ID of the IOMMU as defined by the driver.
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* @endpoint: endpoint ID of the device.
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*/
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struct pkvm_dev_iommu {
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u64 id;
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u64 endpoint;
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};
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#define PKVM_DEVICE_MAX_RESOURCE 32
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#define PKVM_DEVICE_MAX_IOMMU 32
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struct pkvm_device {
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struct pkvm_dev_resource resources[PKVM_DEVICE_MAX_RESOURCE];
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struct pkvm_dev_iommu iommus[PKVM_DEVICE_MAX_IOMMU];
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u32 nr_resources;
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u32 nr_iommus;
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u32 group_id;
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void *ctxt; /* Current context of the device*/
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unsigned short refcount;
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int (*reset_handler)(void *cookie, bool host_to_guest);
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void *cookie; /* cookie from drivers. */
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};
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#endif /* #ifndef __KVM_DEVICE_H */
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