jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
1/*
2 * Copyright (C) 2018, Emilio G. Cota <cota@braap.org>
3 *
4 * License: GNU GPL, version 2 or later.
5 * See the COPYING file in the top-level directory.
6 */
7#include <inttypes.h>
8#include <assert.h>
9#include <stdlib.h>
10#include <string.h>
11#include <unistd.h>
12#include <stdio.h>
13
14#include <qemu-plugin.h>
15
16QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
17
18/*
19 * Empty TB translation callback.
20 * This allows us to measure the overhead of injecting and then
21 * removing empty instrumentation.
22 */
23static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
24{ }
25
26QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
27 const qemu_info_t *info,
28 int argc, char **argv)
29{
30 qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans);
31 return 0;
32}