96420a30e0
with some rewording in tests/qemu-iotests/298 tests/qtest/fuzz/generic_fuzz.c tests/unit/test-throttle.c as suggested by Eric. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Eric Blake <eblake@redhat.com>
124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/*
|
|
* Copyright (C) 2018, Emilio G. Cota <cota@braap.org>
|
|
*
|
|
* License: GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
#include <inttypes.h>
|
|
#include <assert.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <glib.h>
|
|
|
|
#include <qemu-plugin.h>
|
|
|
|
QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
|
|
|
|
static uint64_t inline_mem_count;
|
|
static uint64_t cb_mem_count;
|
|
static uint64_t io_count;
|
|
static bool do_inline, do_callback;
|
|
static bool do_haddr;
|
|
static enum qemu_plugin_mem_rw rw = QEMU_PLUGIN_MEM_RW;
|
|
|
|
static void plugin_exit(qemu_plugin_id_t id, void *p)
|
|
{
|
|
g_autoptr(GString) out = g_string_new("");
|
|
|
|
if (do_inline) {
|
|
g_string_printf(out, "inline mem accesses: %" PRIu64 "\n", inline_mem_count);
|
|
}
|
|
if (do_callback) {
|
|
g_string_append_printf(out, "callback mem accesses: %" PRIu64 "\n", cb_mem_count);
|
|
}
|
|
if (do_haddr) {
|
|
g_string_append_printf(out, "io accesses: %" PRIu64 "\n", io_count);
|
|
}
|
|
qemu_plugin_outs(out->str);
|
|
}
|
|
|
|
static void vcpu_mem(unsigned int cpu_index, qemu_plugin_meminfo_t meminfo,
|
|
uint64_t vaddr, void *udata)
|
|
{
|
|
if (do_haddr) {
|
|
struct qemu_plugin_hwaddr *hwaddr;
|
|
hwaddr = qemu_plugin_get_hwaddr(meminfo, vaddr);
|
|
if (qemu_plugin_hwaddr_is_io(hwaddr)) {
|
|
io_count++;
|
|
} else {
|
|
cb_mem_count++;
|
|
}
|
|
} else {
|
|
cb_mem_count++;
|
|
}
|
|
}
|
|
|
|
static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
|
|
{
|
|
size_t n = qemu_plugin_tb_n_insns(tb);
|
|
size_t i;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
struct qemu_plugin_insn *insn = qemu_plugin_tb_get_insn(tb, i);
|
|
|
|
if (do_inline) {
|
|
qemu_plugin_register_vcpu_mem_inline(insn, rw,
|
|
QEMU_PLUGIN_INLINE_ADD_U64,
|
|
&inline_mem_count, 1);
|
|
}
|
|
if (do_callback) {
|
|
qemu_plugin_register_vcpu_mem_cb(insn, vcpu_mem,
|
|
QEMU_PLUGIN_CB_NO_REGS,
|
|
rw, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
|
|
const qemu_info_t *info,
|
|
int argc, char **argv)
|
|
{
|
|
|
|
for (int i = 0; i < argc; i++) {
|
|
char *opt = argv[i];
|
|
g_auto(GStrv) tokens = g_strsplit(opt, "=", 2);
|
|
|
|
if (g_strcmp0(tokens[0], "haddr") == 0) {
|
|
if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_haddr)) {
|
|
fprintf(stderr, "boolean argument parsing failed: %s\n", opt);
|
|
return -1;
|
|
}
|
|
} else if (g_strcmp0(tokens[0], "track") == 0) {
|
|
if (g_strcmp0(tokens[1], "r") == 0) {
|
|
rw = QEMU_PLUGIN_MEM_R;
|
|
} else if (g_strcmp0(tokens[1], "w") == 0) {
|
|
rw = QEMU_PLUGIN_MEM_W;
|
|
} else if (g_strcmp0(tokens[1], "rw") == 0) {
|
|
rw = QEMU_PLUGIN_MEM_RW;
|
|
} else {
|
|
fprintf(stderr, "invalid value for argument track: %s\n", opt);
|
|
return -1;
|
|
}
|
|
} else if (g_strcmp0(tokens[0], "inline") == 0) {
|
|
if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_inline)) {
|
|
fprintf(stderr, "boolean argument parsing failed: %s\n", opt);
|
|
return -1;
|
|
}
|
|
} else if (g_strcmp0(tokens[0], "callback") == 0) {
|
|
if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_callback)) {
|
|
fprintf(stderr, "boolean argument parsing failed: %s\n", opt);
|
|
return -1;
|
|
}
|
|
} else {
|
|
fprintf(stderr, "option parsing failed: %s\n", opt);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans);
|
|
qemu_plugin_register_atexit_cb(id, plugin_exit, NULL);
|
|
return 0;
|
|
}
|