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92f9f5a4f3
Ivshmem device is used for shared memory based communication between
pre-launched/post-launched VMs.
this patch implements ivshmem device configuration space initialization
and ivshmem device operation methods.
v2: introduce init_one_pcibar interface to simplify BAR initialization
operation of HV emulated PCI device.
v3: 1) due to init_one_pcibar API is only used for pre-launched VM vdevs
it can't be applied to all vdevs, so remove it.
2) move ivshmem BARs initialization to subsequent patch, this patch
only introduce ivshmem configuration space initialization.
Tracked-On: #4853
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
31 lines
566 B
C
31 lines
566 B
C
/*
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* Copyright (C) 2020 Intel Corporation. All rights reserved.
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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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#ifdef CONFIG_IVSHMEM_ENABLED
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struct ivshmem_shm_region {
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char name[32];
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uint64_t hpa;
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uint64_t size;
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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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* @return None
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*/
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void init_ivshmem_shared_memory(void);
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#endif /* CONFIG_IVSHMEM_ENABLED */
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#endif /* IVSHMEM_H */
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