blob: 4b9f0562f2f5bc0dd881dce90198787fe100aa5d [file] [log] [blame]
/*
* Copyright (c) 2019 Nutanix Inc. All rights reserved.
*
* Authors: Thanos Makatos <thanos@nutanix.com>
* Swapnil Ingle <swapnil.ingle@nutanix.com>
* Felipe Franciosi <felipe@nutanix.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Nutanix nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*/
#ifndef LIB_VFIO_USER_PCI_H
#define LIB_VFIO_USER_PCI_H
#include "libvfio-user.h"
#include "private.h"
ssize_t
pci_nonstd_access(vfu_ctx_t *vfu_ctx, char *buf, size_t count,
loff_t offset, bool is_write);
ssize_t
pci_config_space_access(vfu_ctx_t *vfu_ctx, char *buf, size_t count,
loff_t pos, bool is_write);
static inline size_t
pci_config_space_size(vfu_ctx_t *vfu_ctx)
{
return vfu_ctx->reg_info[VFU_PCI_DEV_CFG_REGION_IDX].size;
}
static inline uint8_t *
pci_config_space_ptr(vfu_ctx_t *vfu_ctx, loff_t offset)
{
assert((size_t)offset < pci_config_space_size(vfu_ctx));
return (uint8_t *)vfu_ctx->pci.config_space + offset;
}
#endif /* LIB_VFIO_USER_PCI_H */
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