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/*
* 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.
*
*/
#include <err.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libvfio-user.h"
int main(void)
{
int i, j;
char *buf;
const int bytes_per_line = 0x10;
struct vsc *vsc = alloca(sizeof(*vsc) + 0xd);
struct pcie_ext_cap_vsc_hdr *evsc = alloca(sizeof(*evsc) + 0xd);
struct dsncap dsn = { .hdr.id = PCI_EXT_CAP_ID_DSN,
.sn_lo = 0xdeadbeef,
.sn_hi = 0xcafebabe };
struct pmcap pm = { .hdr.id = PCI_CAP_ID_PM, .pmcs.nsfrst = 0x1 };
/* Required for lspci to report extended caps. */
struct pxcap px = {
.hdr.id = PCI_CAP_ID_EXP,
.pxdcap = {.flrc = 0x1}
};
vfu_ctx_t *vfu_ctx = vfu_create_ctx(VFU_TRANS_SOCK, "",
LIBVFIO_USER_FLAG_ATTACH_NB, NULL,
VFU_DEV_TYPE_PCI);
if (vfu_ctx == NULL) {
err(EXIT_FAILURE, "failed to create libvfio-user context");
}
if (vfu_pci_init(vfu_ctx, VFU_PCI_TYPE_EXPRESS,
PCI_HEADER_TYPE_NORMAL, 0) < 0) {
err(EXIT_FAILURE, "vfu_pci_init() failed");
}
if (vfu_pci_add_capability(vfu_ctx, 0, 0, &pm) < 0) {
err(EXIT_FAILURE, "vfu_pci_add_capability() failed");
}
memset(vsc, 0, 0x10);
vsc->hdr.id = PCI_CAP_ID_VNDR;
vsc->size = 0x10;
memcpy(vsc->data, "abcdefgh", 8);
if (vfu_pci_add_capability(vfu_ctx, 0, 0, vsc) < 0) {
err(EXIT_FAILURE, "vfu_pci_add_capability() failed");
}
if (vfu_pci_add_capability(vfu_ctx, 0, 0, &px) < 0) {
err(EXIT_FAILURE, "vfu_pci_add_capability() failed");
}
if (vfu_pci_add_capability(vfu_ctx, 0, VFU_CAP_FLAG_EXTENDED, &dsn) < 0) {
err(EXIT_FAILURE, "vfu_pci_add_capability() failed");
}
memset(evsc, 0, sizeof(*evsc) + 0xd);
evsc->hdr.id = PCI_EXT_CAP_ID_VNDR;
evsc->id = 1;
evsc->rev = 1;
evsc->len = sizeof(*evsc) + 0xd;
if (vfu_pci_add_capability(vfu_ctx, 0, VFU_CAP_FLAG_EXTENDED, evsc) < 0) {
err(EXIT_FAILURE, "vfu_pci_add_capability() failed");
}
evsc->id = 2;
evsc->rev = 2;
if (vfu_pci_add_capability(vfu_ctx, 0x400,
VFU_CAP_FLAG_EXTENDED, evsc) < 0) {
err(EXIT_FAILURE, "vfu_pci_add_capability() failed");
}
if (vfu_realize_ctx(vfu_ctx) < 0) {
err(EXIT_FAILURE, "failed to realize device");
}
buf = (char*)vfu_pci_get_config_space(vfu_ctx);
printf("00:00.0 bogus PCI device\n");
for (i = 0; i < PCI_CFG_SPACE_EXP_SIZE / bytes_per_line; i++) {
printf("%02x:", i * bytes_per_line);
for (j = 0; j < bytes_per_line; j++) {
printf(" %02x", buf[i * bytes_per_line + j] & 0xff);
}
printf("\n");
}
vfu_destroy_ctx(vfu_ctx);
return 0;
}
/* ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: */
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