[qemu.git] / tests / libqtest.c

/*
 * QTest
 *
 * Copyright IBM, Corp. 2012
 * Copyright Red Hat, Inc. 2012
 *
 * Authors:
 *  Anthony Liguori   <[email protected]>
 *  Paolo Bonzini     <[email protected]>
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 *
 */
#include "libqtest.h"

#include <glib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/un.h>
#include <inttypes.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

#include "qemu/compiler.h"
#include "qemu/osdep.h"

#define MAX_IRQ 256

QTestState *global_qtest;

struct QTestState
{
    int fd;
    int qmp_fd;
    bool irq_level[MAX_IRQ];
    GString *rx;
    gchar *pid_file; /* QEMU PID file */
    int child_pid;   /* Child process created to execute QEMU */
    char *socket_path, *qmp_socket_path;
};

#define g_assert_no_errno(ret) do { \
    g_assert_cmpint(ret, !=, -1); \
} while (0)

static int init_socket(const char *socket_path)
{
    struct sockaddr_un addr;
    int sock;
    int ret;

    sock = socket(PF_UNIX, SOCK_STREAM, 0);
    g_assert_no_errno(sock);

    addr.sun_family = AF_UNIX;
    snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", socket_path);
    qemu_set_cloexec(sock);

    do {
        ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
    } while (ret == -1 && errno == EINTR);
    g_assert_no_errno(ret);
    listen(sock, 1);

    return sock;
}

static int socket_accept(int sock)
{
    struct sockaddr_un addr;
    socklen_t addrlen;
    int ret;

    addrlen = sizeof(addr);
    do {
        ret = accept(sock, (struct sockaddr *)&addr, &addrlen);
    } while (ret == -1 && errno == EINTR);
    g_assert_no_errno(ret);
    close(sock);

    return ret;
}

static pid_t qtest_qemu_pid(QTestState *s)
{
    FILE *f;
    char buffer[1024];
    pid_t pid = -1;

    f = fopen(s->pid_file, "r");
    if (f) {
        if (fgets(buffer, sizeof(buffer), f)) {
            pid = atoi(buffer);
        }
    }
    fclose(f);
    return pid;
}

QTestState *qtest_init(const char *extra_args)
{
    QTestState *s;
    int sock, qmpsock, ret, i;
    gchar *pid_file;
    gchar *command;
    const char *qemu_binary;
    pid_t pid;

    qemu_binary = getenv("QTEST_QEMU_BINARY");
    g_assert(qemu_binary != NULL);

    s = g_malloc(sizeof(*s));

    s->socket_path = g_strdup_printf("/tmp/qtest-%d.sock", getpid());
    s->qmp_socket_path = g_strdup_printf("/tmp/qtest-%d.qmp", getpid());
    pid_file = g_strdup_printf("/tmp/qtest-%d.pid", getpid());

    sock = init_socket(s->socket_path);
    qmpsock = init_socket(s->qmp_socket_path);

    pid = fork();
    if (pid == 0) {
        command = g_strdup_printf("%s "
                                  "-qtest unix:%s,nowait "
                                  "-qtest-log /dev/null "
                                  "-qmp unix:%s,nowait "
                                  "-pidfile %s "
                                  "-machine accel=qtest "
                                  "%s", qemu_binary, s->socket_path,
                                  s->qmp_socket_path, pid_file,
                                  extra_args ?: "");

        ret = system(command);
        exit(ret);
        g_free(command);
    }

    s->fd = socket_accept(sock);
    s->qmp_fd = socket_accept(qmpsock);

    s->rx = g_string_new("");
    s->pid_file = pid_file;
    s->child_pid = pid;
    for (i = 0; i < MAX_IRQ; i++) {
        s->irq_level[i] = false;
    }

    /* Read the QMP greeting and then do the handshake */
    qtest_qmp(s, "");
    qtest_qmp(s, "{ 'execute': 'qmp_capabilities' }");

    if (getenv("QTEST_STOP")) {
        kill(qtest_qemu_pid(s), SIGSTOP);
    }

    return s;
}

void qtest_quit(QTestState *s)
{
    int status;

    pid_t pid = qtest_qemu_pid(s);
    if (pid != -1) {
        /* kill QEMU, but wait for the child created by us to run system() */
        kill(pid, SIGTERM);
        waitpid(s->child_pid, &status, 0);
    }

    unlink(s->pid_file);
    unlink(s->socket_path);
    unlink(s->qmp_socket_path);
    g_free(s->pid_file);
    g_free(s->socket_path);
    g_free(s->qmp_socket_path);
}

static void socket_sendf(int fd, const char *fmt, va_list ap)
{
    gchar *str;
    size_t size, offset;

    str = g_strdup_vprintf(fmt, ap);
    size = strlen(str);

    offset = 0;
    while (offset < size) {
        ssize_t len;

        len = write(fd, str + offset, size - offset);
        if (len == -1 && errno == EINTR) {
            continue;
        }

        g_assert_no_errno(len);
        g_assert_cmpint(len, >, 0);

        offset += len;
    }
}

static void GCC_FMT_ATTR(2, 3) qtest_sendf(QTestState *s, const char *fmt, ...)
{
    va_list ap;

    va_start(ap, fmt);
    socket_sendf(s->fd, fmt, ap);
    va_end(ap);
}

static GString *qtest_recv_line(QTestState *s)
{
    GString *line;
    size_t offset;
    char *eol;

    while ((eol = strchr(s->rx->str, '\n')) == NULL) {
        ssize_t len;
        char buffer[1024];

        len = read(s->fd, buffer, sizeof(buffer));
        if (len == -1 && errno == EINTR) {
            continue;
        }

        if (len == -1 || len == 0) {
            fprintf(stderr, "Broken pipe\n");
            exit(1);
        }

        g_string_append_len(s->rx, buffer, len);
    }

    offset = eol - s->rx->str;
    line = g_string_new_len(s->rx->str, offset);
    g_string_erase(s->rx, 0, offset + 1);

    return line;
}

static gchar **qtest_rsp(QTestState *s, int expected_args)
{
    GString *line;
    gchar **words;
    int i;

redo:
    line = qtest_recv_line(s);
    words = g_strsplit(line->str, " ", 0);
    g_string_free(line, TRUE);

    if (strcmp(words[0], "IRQ") == 0) {
        int irq;

        g_assert(words[1] != NULL);
        g_assert(words[2] != NULL);

        irq = strtoul(words[2], NULL, 0);
        g_assert_cmpint(irq, >=, 0);
        g_assert_cmpint(irq, <, MAX_IRQ);

        if (strcmp(words[1], "raise") == 0) {
            s->irq_level[irq] = true;
        } else {
            s->irq_level[irq] = false;
        }

        g_strfreev(words);
        goto redo;
    }

    g_assert(words[0] != NULL);
    g_assert_cmpstr(words[0], ==, "OK");

    if (expected_args) {
        for (i = 0; i < expected_args; i++) {
            g_assert(words[i] != NULL);
        }
    } else {
        g_strfreev(words);
    }

    return words;
}

void qtest_qmp(QTestState *s, const char *fmt, ...)
{
    va_list ap;
    bool has_reply = false;
    int nesting = 0;

    /* Send QMP request */
    va_start(ap, fmt);
    socket_sendf(s->qmp_fd, fmt, ap);
    va_end(ap);

    /* Receive reply */
    while (!has_reply || nesting > 0) {
        ssize_t len;
        char c;

        len = read(s->qmp_fd, &c, 1);
        if (len == -1 && errno == EINTR) {
            continue;
        }

        if (len == -1 || len == 0) {
            fprintf(stderr, "Broken pipe\n");
            exit(1);
        }

        switch (c) {
        case '{':
            nesting++;
            has_reply = true;
            break;
        case '}':
            nesting--;
            break;
        }
    }
}

const char *qtest_get_arch(void)
{
    const char *qemu = getenv("QTEST_QEMU_BINARY");
    const char *end = strrchr(qemu, '/');

    return end + strlen("/qemu-system-");
}

bool qtest_get_irq(QTestState *s, int num)
{
    /* dummy operation in order to make sure irq is up to date */
    qtest_inb(s, 0);

    return s->irq_level[num];
}

static int64_t qtest_clock_rsp(QTestState *s)
{
    gchar **words;
    int64_t clock;
    words = qtest_rsp(s, 2);
    clock = g_ascii_strtoll(words[1], NULL, 0);
    g_strfreev(words);
    return clock;
}

int64_t qtest_clock_step_next(QTestState *s)
{
    qtest_sendf(s, "clock_step\n");
    return qtest_clock_rsp(s);
}

int64_t qtest_clock_step(QTestState *s, int64_t step)
{
    qtest_sendf(s, "clock_step %"PRIi64"\n", step);
    return qtest_clock_rsp(s);
}

int64_t qtest_clock_set(QTestState *s, int64_t val)
{
    qtest_sendf(s, "clock_set %"PRIi64"\n", val);
    return qtest_clock_rsp(s);
}

void qtest_irq_intercept_out(QTestState *s, const char *qom_path)
{
    qtest_sendf(s, "irq_intercept_out %s\n", qom_path);
    qtest_rsp(s, 0);
}

void qtest_irq_intercept_in(QTestState *s, const char *qom_path)
{
    qtest_sendf(s, "irq_intercept_in %s\n", qom_path);
    qtest_rsp(s, 0);
}

static void qtest_out(QTestState *s, const char *cmd, uint16_t addr, uint32_t value)
{
    qtest_sendf(s, "%s 0x%x 0x%x\n", cmd, addr, value);
    qtest_rsp(s, 0);
}

void qtest_outb(QTestState *s, uint16_t addr, uint8_t value)
{
    qtest_out(s, "outb", addr, value);
}

void qtest_outw(QTestState *s, uint16_t addr, uint16_t value)
{
    qtest_out(s, "outw", addr, value);
}

void qtest_outl(QTestState *s, uint16_t addr, uint32_t value)
{
    qtest_out(s, "outl", addr, value);
}

static uint32_t qtest_in(QTestState *s, const char *cmd, uint16_t addr)
{
    gchar **args;
    uint32_t value;

    qtest_sendf(s, "%s 0x%x\n", cmd, addr);
    args = qtest_rsp(s, 2);
    value = strtoul(args[1], NULL, 0);
    g_strfreev(args);

    return value;
}

uint8_t qtest_inb(QTestState *s, uint16_t addr)
{
    return qtest_in(s, "inb", addr);
}

uint16_t qtest_inw(QTestState *s, uint16_t addr)
{
    return qtest_in(s, "inw", addr);
}

uint32_t qtest_inl(QTestState *s, uint16_t addr)
{
    return qtest_in(s, "inl", addr);
}

static int hex2nib(char ch)
{
    if (ch >= '0' && ch <= '9') {
        return ch - '0';
    } else if (ch >= 'a' && ch <= 'f') {
        return 10 + (ch - 'a');
    } else if (ch >= 'A' && ch <= 'F') {
        return 10 + (ch - 'a');
    } else {
        return -1;
    }
}

void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size)
{
    uint8_t *ptr = data;
    gchar **args;
    size_t i;

    qtest_sendf(s, "read 0x%" PRIx64 " 0x%zx\n", addr, size);
    args = qtest_rsp(s, 2);

    for (i = 0; i < size; i++) {
        ptr[i] = hex2nib(args[1][2 + (i * 2)]) << 4;
        ptr[i] |= hex2nib(args[1][2 + (i * 2) + 1]);
    }

    g_strfreev(args);
}

void qtest_add_func(const char *str, void (*fn))
{
    gchar *path = g_strdup_printf("/%s/%s", qtest_get_arch(), str);
    g_test_add_func(path, fn);
}

void qtest_memwrite(QTestState *s, uint64_t addr, const void *data, size_t size)
{
    const uint8_t *ptr = data;
    size_t i;

    qtest_sendf(s, "write 0x%" PRIx64 " 0x%zx 0x", addr, size);
    for (i = 0; i < size; i++) {
        qtest_sendf(s, "%02x", ptr[i]);
    }
    qtest_sendf(s, "\n");
    qtest_rsp(s, 0);
}
Commit	Line	Data
49ee3590 AL	1	/*
	2	* QTest
	3	*
	4	* Copyright IBM, Corp. 2012
	5	* Copyright Red Hat, Inc. 2012
	6	*
	7	* Authors:
	8	* Anthony Liguori <[email protected]>
	9	* Paolo Bonzini <[email protected]>
	10	*
	11	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	12	* See the COPYING file in the top-level directory.
	13	*
	14	*/
	15	#include "libqtest.h"
	16
	17	#include <glib.h>
	18	#include <sys/types.h>
	19	#include <sys/socket.h>
	20	#include <sys/wait.h>
	21	#include <sys/un.h>
	22	#include <inttypes.h>
	23	#include <errno.h>
	24	#include <stdio.h>
	25	#include <stdlib.h>
	26	#include <unistd.h>
	27	#include <string.h>
	28
1de7afc9 PB	29	#include "qemu/compiler.h"
1de7afc9 PB	30	#include "qemu/osdep.h"
49ee3590 AL	31
	32	#define MAX_IRQ 256
	33
	34	QTestState *global_qtest;
	35
	36	struct QTestState
	37	{
	38	int fd;
a3ca163c	39	int qmp_fd;
49ee3590 AL	40	bool irq_level[MAX_IRQ];
49ee3590 AL	41	GString *rx;
6bf00766 EH	42	gchar pid_file; / QEMU PID file */
6bf00766 EH	43	int child_pid; /* Child process created to execute QEMU */
bb494a50	44	char socket_path, qmp_socket_path;
49ee3590 AL	45	};
	46
	47	#define g_assert_no_errno(ret) do { \
	48	g_assert_cmpint(ret, !=, -1); \
	49	} while (0)
	50
a3ca163c KW	51	static int init_socket(const char *socket_path)
	52	{
	53	struct sockaddr_un addr;
	54	int sock;
	55	int ret;
	56
	57	sock = socket(PF_UNIX, SOCK_STREAM, 0);
	58	g_assert_no_errno(sock);
	59
	60	addr.sun_family = AF_UNIX;
	61	snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", socket_path);
	62	qemu_set_cloexec(sock);
	63
	64	do {
	65	ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
	66	} while (ret == -1 && errno == EINTR);
	67	g_assert_no_errno(ret);
	68	listen(sock, 1);
	69
	70	return sock;
	71	}
	72
	73	static int socket_accept(int sock)
	74	{
	75	struct sockaddr_un addr;
	76	socklen_t addrlen;
	77	int ret;
	78
b34d2595	79	addrlen = sizeof(addr);
a3ca163c KW	80	do {
	81	ret = accept(sock, (struct sockaddr *)&addr, &addrlen);
	82	} while (ret == -1 && errno == EINTR);
	83	g_assert_no_errno(ret);
	84	close(sock);
	85
	86	return ret;
	87	}
	88
e0fea6b1 PB	89	static pid_t qtest_qemu_pid(QTestState *s)
	90	{
	91	FILE *f;
	92	char buffer[1024];
	93	pid_t pid = -1;
	94
	95	f = fopen(s->pid_file, "r");
	96	if (f) {
	97	if (fgets(buffer, sizeof(buffer), f)) {
	98	pid = atoi(buffer);
	99	}
	100	}
	101	fclose(f);
	102	return pid;
	103	}
	104
49ee3590 AL	105	QTestState qtest_init(const char extra_args)
	106	{
	107	QTestState *s;
a3ca163c	108	int sock, qmpsock, ret, i;
49ee3590 AL	109	gchar *pid_file;
	110	gchar *command;
	111	const char *qemu_binary;
	112	pid_t pid;
49ee3590 AL	113
	114	qemu_binary = getenv("QTEST_QEMU_BINARY");
	115	g_assert(qemu_binary != NULL);
	116
49ee3590 AL	117	s = g_malloc(sizeof(*s));
49ee3590 AL	118
bb494a50 MA	119	s->socket_path = g_strdup_printf("/tmp/qtest-%d.sock", getpid());
	120	s->qmp_socket_path = g_strdup_printf("/tmp/qtest-%d.qmp", getpid());
	121	pid_file = g_strdup_printf("/tmp/qtest-%d.pid", getpid());
	122
	123	sock = init_socket(s->socket_path);
	124	qmpsock = init_socket(s->qmp_socket_path);
49ee3590 AL	125
	126	pid = fork();
	127	if (pid == 0) {
	128	command = g_strdup_printf("%s "
	129	"-qtest unix:%s,nowait "
	130	"-qtest-log /dev/null "
a3ca163c	131	"-qmp unix:%s,nowait "
49ee3590 AL	132	"-pidfile %s "
49ee3590 AL	133	"-machine accel=qtest "
bb494a50 MA	134	"%s", qemu_binary, s->socket_path,
bb494a50 MA	135	s->qmp_socket_path, pid_file,
49ee3590 AL	136	extra_args ?: "");
	137
	138	ret = system(command);
	139	exit(ret);
	140	g_free(command);
	141	}
	142
a3ca163c KW	143	s->fd = socket_accept(sock);
a3ca163c KW	144	s->qmp_fd = socket_accept(qmpsock);
49ee3590	145
49ee3590 AL	146	s->rx = g_string_new("");
49ee3590 AL	147	s->pid_file = pid_file;
6bf00766	148	s->child_pid = pid;
49ee3590 AL	149	for (i = 0; i < MAX_IRQ; i++) {
	150	s->irq_level[i] = false;
	151	}
	152
a3ca163c KW	153	/* Read the QMP greeting and then do the handshake */
	154	qtest_qmp(s, "");
	155	qtest_qmp(s, "{ 'execute': 'qmp_capabilities' }");
49ee3590	156
e0fea6b1 PB	157	if (getenv("QTEST_STOP")) {
	158	kill(qtest_qemu_pid(s), SIGSTOP);
	159	}
	160
49ee3590 AL	161	return s;
	162	}
	163
	164	void qtest_quit(QTestState *s)
	165	{
e0fea6b1	166	int status;
49ee3590	167
e0fea6b1 PB	168	pid_t pid = qtest_qemu_pid(s);
e0fea6b1 PB	169	if (pid != -1) {
6bf00766	170	/* kill QEMU, but wait for the child created by us to run system() */
e0fea6b1	171	kill(pid, SIGTERM);
6bf00766	172	waitpid(s->child_pid, &status, 0);
49ee3590	173	}
bb494a50 MA	174
	175	unlink(s->pid_file);
	176	unlink(s->socket_path);
	177	unlink(s->qmp_socket_path);
	178	g_free(s->pid_file);
	179	g_free(s->socket_path);
	180	g_free(s->qmp_socket_path);
49ee3590 AL	181	}
49ee3590 AL	182
a3ca163c	183	static void socket_sendf(int fd, const char *fmt, va_list ap)
49ee3590	184	{
49ee3590 AL	185	gchar *str;
	186	size_t size, offset;
	187
49ee3590	188	str = g_strdup_vprintf(fmt, ap);
49ee3590 AL	189	size = strlen(str);
	190
	191	offset = 0;
	192	while (offset < size) {
	193	ssize_t len;
	194
a3ca163c	195	len = write(fd, str + offset, size - offset);
49ee3590 AL	196	if (len == -1 && errno == EINTR) {
	197	continue;
	198	}
	199
	200	g_assert_no_errno(len);
	201	g_assert_cmpint(len, >, 0);
	202
	203	offset += len;
	204	}
	205	}
	206
a3ca163c KW	207	static void GCC_FMT_ATTR(2, 3) qtest_sendf(QTestState s, const char fmt, ...)
	208	{
	209	va_list ap;
	210
	211	va_start(ap, fmt);
	212	socket_sendf(s->fd, fmt, ap);
	213	va_end(ap);
	214	}
	215
49ee3590 AL	216	static GString qtest_recv_line(QTestState s)
	217	{
	218	GString *line;
	219	size_t offset;
	220	char *eol;
	221
	222	while ((eol = strchr(s->rx->str, '\n')) == NULL) {
	223	ssize_t len;
	224	char buffer[1024];
	225
	226	len = read(s->fd, buffer, sizeof(buffer));
	227	if (len == -1 && errno == EINTR) {
	228	continue;
	229	}
	230
	231	if (len == -1 \|\| len == 0) {
	232	fprintf(stderr, "Broken pipe\n");
	233	exit(1);
	234	}
	235
	236	g_string_append_len(s->rx, buffer, len);
	237	}
	238
	239	offset = eol - s->rx->str;
	240	line = g_string_new_len(s->rx->str, offset);
	241	g_string_erase(s->rx, 0, offset + 1);
	242
	243	return line;
	244	}
	245
	246	static gchar *qtest_rsp(QTestState s, int expected_args)
	247	{
	248	GString *line;
	249	gchar **words;
	250	int i;
	251
	252	redo:
	253	line = qtest_recv_line(s);
	254	words = g_strsplit(line->str, " ", 0);
	255	g_string_free(line, TRUE);
	256
	257	if (strcmp(words[0], "IRQ") == 0) {
	258	int irq;
	259
	260	g_assert(words[1] != NULL);
	261	g_assert(words[2] != NULL);
	262
	263	irq = strtoul(words[2], NULL, 0);
	264	g_assert_cmpint(irq, >=, 0);
	265	g_assert_cmpint(irq, <, MAX_IRQ);
	266
	267	if (strcmp(words[1], "raise") == 0) {
	268	s->irq_level[irq] = true;
	269	} else {
	270	s->irq_level[irq] = false;
	271	}
	272
	273	g_strfreev(words);
	274	goto redo;
	275	}
	276
	277	g_assert(words[0] != NULL);
	278	g_assert_cmpstr(words[0], ==, "OK");
	279
280	if (expected_args) {
281	for (i = 0; i < expected_args; i++) {
282	g_assert(words[i] != NULL);
283	}
284	} else {
285	g_strfreev(words);
286	}
287
288	return words;
289	}
290
a3ca163c KW	291	void qtest_qmp(QTestState s, const char fmt, ...)
	292	{
	293	va_list ap;
	294	bool has_reply = false;
	295	int nesting = 0;
	296
	297	/* Send QMP request */
	298	va_start(ap, fmt);
	299	socket_sendf(s->qmp_fd, fmt, ap);
	300	va_end(ap);
	301
	302	/* Receive reply */
	303	while (!has_reply \|\| nesting > 0) {
	304	ssize_t len;
	305	char c;
	306
	307	len = read(s->qmp_fd, &c, 1);
	308	if (len == -1 && errno == EINTR) {
	309	continue;
	310	}
	311
039380a8 AL	312	if (len == -1 \|\| len == 0) {
	313	fprintf(stderr, "Broken pipe\n");
	314	exit(1);
	315	}
	316
a3ca163c KW	317	switch (c) {
	318	case '{':
	319	nesting++;
	320	has_reply = true;
	321	break;
	322	case '}':
	323	nesting--;
	324	break;
	325	}
	326	}
	327	}
	328
49ee3590 AL	329	const char *qtest_get_arch(void)
	330	{
	331	const char *qemu = getenv("QTEST_QEMU_BINARY");
	332	const char *end = strrchr(qemu, '/');
	333
	334	return end + strlen("/qemu-system-");
	335	}
	336
	337	bool qtest_get_irq(QTestState *s, int num)
	338	{
	339	/* dummy operation in order to make sure irq is up to date */
	340	qtest_inb(s, 0);
	341
	342	return s->irq_level[num];
	343	}
	344
	345	static int64_t qtest_clock_rsp(QTestState *s)
	346	{
	347	gchar **words;
	348	int64_t clock;
	349	words = qtest_rsp(s, 2);
	350	clock = g_ascii_strtoll(words[1], NULL, 0);
	351	g_strfreev(words);
	352	return clock;
	353	}
	354
	355	int64_t qtest_clock_step_next(QTestState *s)
	356	{
	357	qtest_sendf(s, "clock_step\n");
	358	return qtest_clock_rsp(s);
	359	}
	360
	361	int64_t qtest_clock_step(QTestState *s, int64_t step)
	362	{
	363	qtest_sendf(s, "clock_step %"PRIi64"\n", step);
	364	return qtest_clock_rsp(s);
	365	}
	366
	367	int64_t qtest_clock_set(QTestState *s, int64_t val)
	368	{
	369	qtest_sendf(s, "clock_set %"PRIi64"\n", val);
	370	return qtest_clock_rsp(s);
	371	}
	372
	373	void qtest_irq_intercept_out(QTestState s, const char qom_path)
	374	{
	375	qtest_sendf(s, "irq_intercept_out %s\n", qom_path);
	376	qtest_rsp(s, 0);
	377	}
	378
	379	void qtest_irq_intercept_in(QTestState s, const char qom_path)
	380	{
	381	qtest_sendf(s, "irq_intercept_in %s\n", qom_path);
	382	qtest_rsp(s, 0);
	383	}
	384
	385	static void qtest_out(QTestState s, const char cmd, uint16_t addr, uint32_t value)
	386	{
	387	qtest_sendf(s, "%s 0x%x 0x%x\n", cmd, addr, value);
	388	qtest_rsp(s, 0);
	389	}
	390
	391	void qtest_outb(QTestState *s, uint16_t addr, uint8_t value)
	392	{
393	qtest_out(s, "outb", addr, value);
394	}
395
396	void qtest_outw(QTestState *s, uint16_t addr, uint16_t value)
397	{
398	qtest_out(s, "outw", addr, value);
399	}
400
401	void qtest_outl(QTestState *s, uint16_t addr, uint32_t value)
402	{
403	qtest_out(s, "outl", addr, value);
404	}
405
406	static uint32_t qtest_in(QTestState s, const char cmd, uint16_t addr)
407	{
408	gchar **args;
409	uint32_t value;
410
411	qtest_sendf(s, "%s 0x%x\n", cmd, addr);
412	args = qtest_rsp(s, 2);
413	value = strtoul(args[1], NULL, 0);
414	g_strfreev(args);
415
416	return value;
417	}
418
419	uint8_t qtest_inb(QTestState *s, uint16_t addr)
420	{
421	return qtest_in(s, "inb", addr);
422	}
423
424	uint16_t qtest_inw(QTestState *s, uint16_t addr)
425	{
426	return qtest_in(s, "inw", addr);
427	}
428
429	uint32_t qtest_inl(QTestState *s, uint16_t addr)
430	{
431	return qtest_in(s, "inl", addr);
432	}
433
434	static int hex2nib(char ch)
435	{
436	if (ch >= '0' && ch <= '9') {
437	return ch - '0';
438	} else if (ch >= 'a' && ch <= 'f') {
439	return 10 + (ch - 'a');
440	} else if (ch >= 'A' && ch <= 'F') {
441	return 10 + (ch - 'a');
442	} else {
443	return -1;
444	}
445	}
446
447	void qtest_memread(QTestState s, uint64_t addr, void data, size_t size)
448	{
449	uint8_t *ptr = data;
450	gchar **args;
451	size_t i;
452
ea7697fc	453	qtest_sendf(s, "read 0x%" PRIx64 " 0x%zx\n", addr, size);
49ee3590 AL	454	args = qtest_rsp(s, 2);
	455
	456	for (i = 0; i < size; i++) {
	457	ptr[i] = hex2nib(args[1][2 + (i * 2)]) << 4;
	458	ptr[i] \|= hex2nib(args[1][2 + (i * 2) + 1]);
	459	}
	460
	461	g_strfreev(args);
	462	}
	463
	464	void qtest_add_func(const char str, void (fn))
	465	{
	466	gchar *path = g_strdup_printf("/%s/%s", qtest_get_arch(), str);
	467	g_test_add_func(path, fn);
	468	}
	469
	470	void qtest_memwrite(QTestState s, uint64_t addr, const void data, size_t size)
	471	{
	472	const uint8_t *ptr = data;
	473	size_t i;
	474
ea7697fc	475	qtest_sendf(s, "write 0x%" PRIx64 " 0x%zx 0x", addr, size);
49ee3590 AL	476	for (i = 0; i < size; i++) {
	477	qtest_sendf(s, "%02x", ptr[i]);
	478	}
	479	qtest_sendf(s, "\n");
	480	qtest_rsp(s, 0);
	481	}