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ddfe218747
1) region ID shall be configured by user via config tool. 2) region ID is programmed to "Subsystem ID" of PCI config space. 2) "Subsystem Vendor ID" is harded coded as 0x8086 Tracked-On: #8566 Signed-off-by: Yonghua Huang <yonghua.huang@intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
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* Copyright (C) 2020-2022 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef IVSHMEM_H
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#define IVSHMEM_H
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#define IVSHMEM_VENDOR_ID 0x1af4U
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#define IVSHMEM_DEVICE_ID 0x1110U
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#define IVSHMEM_INTEL_SUBVENDOR_ID 0x8086U
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#ifdef CONFIG_IVSHMEM_ENABLED
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/*
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* Max number of peers for each ivshmem region, and
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* VM ID is used as peer IDs of this VM's ivshmem devices.
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*/
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#define MAX_IVSHMEM_PEER_NUM (CONFIG_MAX_VM_NUM)
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/* Max number of MSIX table entries of shmem device. */
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#define MAX_IVSHMEM_MSIX_TBL_ENTRY_NUM 8U
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struct ivshmem_shm_region {
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char name[32];
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uint16_t region_id;
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uint8_t reserved[6];
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uint64_t hpa;
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uint64_t size;
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struct ivshmem_device *doorbell_peers[MAX_IVSHMEM_PEER_NUM];
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};
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extern const struct pci_vdev_ops vpci_ivshmem_ops;
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/**
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* @brief Initialize ivshmem shared memory regions
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*
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* Initialize ivshmem shared memory regions based on user configuration.
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*/
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void init_ivshmem_shared_memory(void);
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int32_t create_ivshmem_vdev(struct acrn_vm *vm, struct acrn_vdev *dev);
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int32_t destroy_ivshmem_vdev(struct pci_vdev *vdev);
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#endif /* CONFIG_IVSHMEM_ENABLED */
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#endif /* IVSHMEM_H */
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