cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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empty.c (872B)

      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}