system: Rename softmmu/ directory as system/

The softmmu/ directory contains files specific to system
emulation. Rename it as system/. Update meson rules, the
MAINTAINERS file and all the documentation and comments.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004090629.37473-14-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 1070 deletions

diff --git a/softmmu/qtest.c b/softmmu/qtest.c
deleted file mode 100644
index 35b643a274..0000000000
--- a/softmmu/qtest.c
+++ /dev/null
@@ -1,1070 +0,0 @@
-/*
- * Test Server
- *
- * Copyright IBM, Corp. 2011
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * 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 "qemu/osdep.h"
-#include "qapi/error.h"
-#include "sysemu/qtest.h"
-#include "sysemu/runstate.h"
-#include "chardev/char-fe.h"
-#include "exec/ioport.h"
-#include "exec/memory.h"
-#include "exec/tswap.h"
-#include "hw/qdev-core.h"
-#include "hw/irq.h"
-#include "qemu/accel.h"
-#include "sysemu/cpu-timers.h"
-#include "qemu/config-file.h"
-#include "qemu/option.h"
-#include "qemu/error-report.h"
-#include "qemu/module.h"
-#include "qemu/cutils.h"
-#include "qom/object_interfaces.h"
-
-#define MAX_IRQ 256
-
-#define TYPE_QTEST "qtest"
-
-OBJECT_DECLARE_SIMPLE_TYPE(QTest, QTEST)
-
-struct QTest {
-    Object parent;
-
-    bool has_machine_link;
-    char *chr_name;
-    Chardev *chr;
-    CharBackend qtest_chr;
-    char *log;
-};
-
-bool qtest_allowed;
-
-static DeviceState *irq_intercept_dev;
-static FILE *qtest_log_fp;
-static QTest *qtest;
-static GString *inbuf;
-static int irq_levels[MAX_IRQ];
-static GTimer *timer;
-static bool qtest_opened;
-static void (*qtest_server_send)(void*, const char*);
-static void *qtest_server_send_opaque;
-
-#define FMT_timeval "%.06f"
-
-/**
- * DOC: QTest Protocol
- *
- * Line based protocol, request/response based.  Server can send async messages
- * so clients should always handle many async messages before the response
- * comes in.
- *
- * Valid requests
- * ^^^^^^^^^^^^^^
- *
- * Clock management:
- * """""""""""""""""
- *
- * The qtest client is completely in charge of the QEMU_CLOCK_VIRTUAL.  qtest commands
- * let you adjust the value of the clock (monotonically).  All the commands
- * return the current value of the clock in nanoseconds.
- *
- * .. code-block:: none
- *
- *  > clock_step
- *  < OK VALUE
- *
- * Advance the clock to the next deadline.  Useful when waiting for
- * asynchronous events.
- *
- * .. code-block:: none
- *
- *  > clock_step NS
- *  < OK VALUE
- *
- * Advance the clock by NS nanoseconds.
- *
- * .. code-block:: none
- *
- *  > clock_set NS
- *  < OK VALUE
- *
- * Advance the clock to NS nanoseconds (do nothing if it's already past).
- *
- * PIO and memory access:
- * """"""""""""""""""""""
- *
- * .. code-block:: none
- *
- *  > outb ADDR VALUE
- *  < OK
- *
- * .. code-block:: none
- *
- *  > outw ADDR VALUE
- *  < OK
- *
- * .. code-block:: none
- *
- *  > outl ADDR VALUE
- *  < OK
- *
- * .. code-block:: none
- *
- *  > inb ADDR
- *  < OK VALUE
- *
- * .. code-block:: none
- *
- *  > inw ADDR
- *  < OK VALUE
- *
- * .. code-block:: none
- *
- *  > inl ADDR
- *  < OK VALUE
- *
- * .. code-block:: none
- *
- *  > writeb ADDR VALUE
- *  < OK
- *
- * .. code-block:: none
- *
- *  > writew ADDR VALUE
- *  < OK
- *
- * .. code-block:: none
- *
- *  > writel ADDR VALUE
- *  < OK
- *
- * .. code-block:: none
- *
- *  > writeq ADDR VALUE
- *  < OK
- *
- * .. code-block:: none
- *
- *  > readb ADDR
- *  < OK VALUE
- *
- * .. code-block:: none
- *
- *  > readw ADDR
- *  < OK VALUE
- *
- * .. code-block:: none
- *
- *  > readl ADDR
- *  < OK VALUE
- *
- * .. code-block:: none
- *
- *  > readq ADDR
- *  < OK VALUE
- *
- * .. code-block:: none
- *
- *  > read ADDR SIZE
- *  < OK DATA
- *
- * .. code-block:: none
- *
- *  > write ADDR SIZE DATA
- *  < OK
- *
- * .. code-block:: none
- *
- *  > b64read ADDR SIZE
- *  < OK B64_DATA
- *
- * .. code-block:: none
- *
- *  > b64write ADDR SIZE B64_DATA
- *  < OK
- *
- * .. code-block:: none
- *
- *  > memset ADDR SIZE VALUE
- *  < OK
- *
- * ADDR, SIZE, VALUE are all integers parsed with strtoul() with a base of 0.
- * For 'memset' a zero size is permitted and does nothing.
- *
- * DATA is an arbitrarily long hex number prefixed with '0x'.  If it's smaller
- * than the expected size, the value will be zero filled at the end of the data
- * sequence.
- *
- * B64_DATA is an arbitrarily long base64 encoded string.
- * If the sizes do not match, the data will be truncated.
- *
- * IRQ management:
- * """""""""""""""
- *
- * .. code-block:: none
- *
- *  > irq_intercept_in QOM-PATH
- *  < OK
- *
- * .. code-block:: none
- *
- *  > irq_intercept_out QOM-PATH
- *  < OK
- *
- * Attach to the gpio-in (resp. gpio-out) pins exported by the device at
- * QOM-PATH.  When the pin is triggered, one of the following async messages
- * will be printed to the qtest stream::
- *
- *  IRQ raise NUM
- *  IRQ lower NUM
- *
- * where NUM is an IRQ number.  For the PC, interrupts can be intercepted
- * simply with "irq_intercept_in ioapic" (note that IRQ0 comes out with
- * NUM=0 even though it is remapped to GSI 2).
- *
- * Setting interrupt level:
- * """"""""""""""""""""""""
- *
- * .. code-block:: none
- *
- *  > set_irq_in QOM-PATH NAME NUM LEVEL
- *  < OK
- *
- * where NAME is the name of the irq/gpio list, NUM is an IRQ number and
- * LEVEL is an signed integer IRQ level.
- *
- * Forcibly set the given interrupt pin to the given level.
- *
- */
-
-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_send_prefix(CharBackend *chr)
-{
-    if (!qtest_log_fp || !qtest_opened) {
-        return;
-    }
-
-    fprintf(qtest_log_fp, "[S +" FMT_timeval "] ", g_timer_elapsed(timer, NULL));
-}
-
-static void G_GNUC_PRINTF(1, 2) qtest_log_send(const char *fmt, ...)
-{
-    va_list ap;
-
-    if (!qtest_log_fp || !qtest_opened) {
-        return;
-    }
-
-    qtest_send_prefix(NULL);
-
-    va_start(ap, fmt);
-    vfprintf(qtest_log_fp, fmt, ap);
-    va_end(ap);
-}
-
-static void qtest_server_char_be_send(void *opaque, const char *str)
-{
-    size_t len = strlen(str);
-    CharBackend* chr = (CharBackend *)opaque;
-    qemu_chr_fe_write_all(chr, (uint8_t *)str, len);
-    if (qtest_log_fp && qtest_opened) {
-        fprintf(qtest_log_fp, "%s", str);
-    }
-}
-
-static void qtest_send(CharBackend *chr, const char *str)
-{
-    qtest_server_send(qtest_server_send_opaque, str);
-}
-
-void qtest_sendf(CharBackend *chr, const char *fmt, ...)
-{
-    va_list ap;
-    gchar *buffer;
-
-    va_start(ap, fmt);
-    buffer = g_strdup_vprintf(fmt, ap);
-    qtest_send(chr, buffer);
-    g_free(buffer);
-    va_end(ap);
-}
-
-static void qtest_irq_handler(void *opaque, int n, int level)
-{
-    qemu_irq old_irq = *(qemu_irq *)opaque;
-    qemu_set_irq(old_irq, level);
-
-    if (irq_levels[n] != level) {
-        CharBackend *chr = &qtest->qtest_chr;
-        irq_levels[n] = level;
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "IRQ %s %d\n",
-                    level ? "raise" : "lower", n);
-    }
-}
-
-static int64_t qtest_clock_counter;
-
-int64_t qtest_get_virtual_clock(void)
-{
-    return qatomic_read_i64(&qtest_clock_counter);
-}
-
-static void qtest_set_virtual_clock(int64_t count)
-{
-    qatomic_set_i64(&qtest_clock_counter, count);
-}
-
-static void qtest_clock_warp(int64_t dest)
-{
-    int64_t clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-    AioContext *aio_context;
-    assert(qtest_enabled());
-    aio_context = qemu_get_aio_context();
-    while (clock < dest) {
-        int64_t deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL,
-                                                      QEMU_TIMER_ATTR_ALL);
-        int64_t warp = qemu_soonest_timeout(dest - clock, deadline);
-
-        qtest_set_virtual_clock(qtest_get_virtual_clock() + warp);
-
-        qemu_clock_run_timers(QEMU_CLOCK_VIRTUAL);
-        timerlist_run_timers(aio_context->tlg.tl[QEMU_CLOCK_VIRTUAL]);
-        clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-    }
-    qemu_clock_notify(QEMU_CLOCK_VIRTUAL);
-}
-
-static bool (*process_command_cb)(CharBackend *chr, gchar **words);
-
-void qtest_set_command_cb(bool (*pc_cb)(CharBackend *chr, gchar **words))
-{
-    assert(!process_command_cb);  /* Switch to a list if we need more than one */
-
-    process_command_cb = pc_cb;
-}
-
-static void qtest_install_gpio_out_intercept(DeviceState *dev, const char *name, int n)
-{
-    qemu_irq *disconnected = g_new0(qemu_irq, 1);
-    qemu_irq icpt = qemu_allocate_irq(qtest_irq_handler,
-                                      disconnected, n);
-
-    *disconnected = qdev_intercept_gpio_out(dev, icpt, name, n);
-}
-
-static void qtest_process_command(CharBackend *chr, gchar **words)
-{
-    const gchar *command;
-
-    g_assert(words);
-
-    command = words[0];
-
-    if (qtest_log_fp) {
-        int i;
-
-        fprintf(qtest_log_fp, "[R +" FMT_timeval "]", g_timer_elapsed(timer, NULL));
-        for (i = 0; words[i]; i++) {
-            fprintf(qtest_log_fp, " %s", words[i]);
-        }
-        fprintf(qtest_log_fp, "\n");
-    }
-
-    g_assert(command);
-    if (strcmp(words[0], "irq_intercept_out") == 0
-        || strcmp(words[0], "irq_intercept_in") == 0) {
-        DeviceState *dev;
-        NamedGPIOList *ngl;
-        bool is_named;
-        bool is_outbound;
-        bool interception_succeeded = false;
-
-        g_assert(words[1]);
-        is_named = words[2] != NULL;
-        is_outbound = words[0][14] == 'o';
-        dev = DEVICE(object_resolve_path(words[1], NULL));
-        if (!dev) {
-            qtest_send_prefix(chr);
-            qtest_send(chr, "FAIL Unknown device\n");
-            return;
-        }
-
-        if (is_named && !is_outbound) {
-            qtest_send_prefix(chr);
-            qtest_send(chr, "FAIL Interception of named in-GPIOs not yet supported\n");
-            return;
-        }
-
-        if (irq_intercept_dev) {
-            qtest_send_prefix(chr);
-            if (irq_intercept_dev != dev) {
-                qtest_send(chr, "FAIL IRQ intercept already enabled\n");
-            } else {
-                qtest_send(chr, "OK\n");
-            }
-            return;
-        }
-
-        QLIST_FOREACH(ngl, &dev->gpios, node) {
-            /* We don't support inbound interception of named GPIOs yet */
-            if (is_outbound) {
-                /* NULL is valid and matchable, for "unnamed GPIO" */
-                if (g_strcmp0(ngl->name, words[2]) == 0) {
-                    int i;
-                    for (i = 0; i < ngl->num_out; ++i) {
-                        qtest_install_gpio_out_intercept(dev, ngl->name, i);
-                    }
-                    interception_succeeded = true;
-                }
-            } else {
-                qemu_irq_intercept_in(ngl->in, qtest_irq_handler,
-                                      ngl->num_in);
-                interception_succeeded = true;
-            }
-        }
-
-        qtest_send_prefix(chr);
-        if (interception_succeeded) {
-            irq_intercept_dev = dev;
-            qtest_send(chr, "OK\n");
-        } else {
-            qtest_send(chr, "FAIL No intercepts installed\n");
-        }
-    } else if (strcmp(words[0], "set_irq_in") == 0) {
-        DeviceState *dev;
-        qemu_irq irq;
-        char *name;
-        int ret;
-        int num;
-        int level;
-
-        g_assert(words[1] && words[2] && words[3] && words[4]);
-
-        dev = DEVICE(object_resolve_path(words[1], NULL));
-        if (!dev) {
-            qtest_send_prefix(chr);
-            qtest_send(chr, "FAIL Unknown device\n");
-            return;
-        }
-
-        if (strcmp(words[2], "unnamed-gpio-in") == 0) {
-            name = NULL;
-        } else {
-            name = words[2];
-        }
-
-        ret = qemu_strtoi(words[3], NULL, 0, &num);
-        g_assert(!ret);
-        ret = qemu_strtoi(words[4], NULL, 0, &level);
-        g_assert(!ret);
-
-        irq = qdev_get_gpio_in_named(dev, name, num);
-
-        qemu_set_irq(irq, level);
-        qtest_send_prefix(chr);
-        qtest_send(chr, "OK\n");
-    } else if (strcmp(words[0], "outb") == 0 ||
-               strcmp(words[0], "outw") == 0 ||
-               strcmp(words[0], "outl") == 0) {
-        unsigned long addr;
-        unsigned long value;
-        int ret;
-
-        g_assert(words[1] && words[2]);
-        ret = qemu_strtoul(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        ret = qemu_strtoul(words[2], NULL, 0, &value);
-        g_assert(ret == 0);
-        g_assert(addr <= 0xffff);
-
-        if (words[0][3] == 'b') {
-            cpu_outb(addr, value);
-        } else if (words[0][3] == 'w') {
-            cpu_outw(addr, value);
-        } else if (words[0][3] == 'l') {
-            cpu_outl(addr, value);
-        }
-        qtest_send_prefix(chr);
-        qtest_send(chr, "OK\n");
-    } else if (strcmp(words[0], "inb") == 0 ||
-        strcmp(words[0], "inw") == 0 ||
-        strcmp(words[0], "inl") == 0) {
-        unsigned long addr;
-        uint32_t value = -1U;
-        int ret;
-
-        g_assert(words[1]);
-        ret = qemu_strtoul(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        g_assert(addr <= 0xffff);
-
-        if (words[0][2] == 'b') {
-            value = cpu_inb(addr);
-        } else if (words[0][2] == 'w') {
-            value = cpu_inw(addr);
-        } else if (words[0][2] == 'l') {
-            value = cpu_inl(addr);
-        }
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "OK 0x%04x\n", value);
-    } else if (strcmp(words[0], "writeb") == 0 ||
-               strcmp(words[0], "writew") == 0 ||
-               strcmp(words[0], "writel") == 0 ||
-               strcmp(words[0], "writeq") == 0) {
-        uint64_t addr;
-        uint64_t value;
-        int ret;
-
-        g_assert(words[1] && words[2]);
-        ret = qemu_strtou64(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        ret = qemu_strtou64(words[2], NULL, 0, &value);
-        g_assert(ret == 0);
-
-        if (words[0][5] == 'b') {
-            uint8_t data = value;
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                                &data, 1);
-        } else if (words[0][5] == 'w') {
-            uint16_t data = value;
-            tswap16s(&data);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                                &data, 2);
-        } else if (words[0][5] == 'l') {
-            uint32_t data = value;
-            tswap32s(&data);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                                &data, 4);
-        } else if (words[0][5] == 'q') {
-            uint64_t data = value;
-            tswap64s(&data);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                                &data, 8);
-        }
-        qtest_send_prefix(chr);
-        qtest_send(chr, "OK\n");
-    } else if (strcmp(words[0], "readb") == 0 ||
-               strcmp(words[0], "readw") == 0 ||
-               strcmp(words[0], "readl") == 0 ||
-               strcmp(words[0], "readq") == 0) {
-        uint64_t addr;
-        uint64_t value = UINT64_C(-1);
-        int ret;
-
-        g_assert(words[1]);
-        ret = qemu_strtou64(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-
-        if (words[0][4] == 'b') {
-            uint8_t data;
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                               &data, 1);
-            value = data;
-        } else if (words[0][4] == 'w') {
-            uint16_t data;
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                               &data, 2);
-            value = tswap16(data);
-        } else if (words[0][4] == 'l') {
-            uint32_t data;
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                               &data, 4);
-            value = tswap32(data);
-        } else if (words[0][4] == 'q') {
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                               &value, 8);
-            tswap64s(&value);
-        }
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "OK 0x%016" PRIx64 "\n", value);
-    } else if (strcmp(words[0], "read") == 0) {
-        uint64_t addr, len, i;
-        uint8_t *data;
-        char *enc;
-        int ret;
-
-        g_assert(words[1] && words[2]);
-        ret = qemu_strtou64(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        ret = qemu_strtou64(words[2], NULL, 0, &len);
-        g_assert(ret == 0);
-        /* We'd send garbage to libqtest if len is 0 */
-        g_assert(len);
-
-        data = g_malloc(len);
-        address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
-                           len);
-
-        enc = g_malloc(2 * len + 1);
-        for (i = 0; i < len; i++) {
-            sprintf(&enc[i * 2], "%02x", data[i]);
-        }
-
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "OK 0x%s\n", enc);
-
-        g_free(data);
-        g_free(enc);
-    } else if (strcmp(words[0], "b64read") == 0) {
-        uint64_t addr, len;
-        uint8_t *data;
-        gchar *b64_data;
-        int ret;
-
-        g_assert(words[1] && words[2]);
-        ret = qemu_strtou64(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        ret = qemu_strtou64(words[2], NULL, 0, &len);
-        g_assert(ret == 0);
-
-        data = g_malloc(len);
-        address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
-                           len);
-        b64_data = g_base64_encode(data, len);
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "OK %s\n", b64_data);
-
-        g_free(data);
-        g_free(b64_data);
-    } else if (strcmp(words[0], "write") == 0) {
-        uint64_t addr, len, i;
-        uint8_t *data;
-        size_t data_len;
-        int ret;
-
-        g_assert(words[1] && words[2] && words[3]);
-        ret = qemu_strtou64(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        ret = qemu_strtou64(words[2], NULL, 0, &len);
-        g_assert(ret == 0);
-
-        data_len = strlen(words[3]);
-        if (data_len < 3) {
-            qtest_send(chr, "ERR invalid argument size\n");
-            return;
-        }
-
-        data = g_malloc(len);
-        for (i = 0; i < len; i++) {
-            if ((i * 2 + 4) <= data_len) {
-                data[i] = hex2nib(words[3][i * 2 + 2]) << 4;
-                data[i] |= hex2nib(words[3][i * 2 + 3]);
-            } else {
-                data[i] = 0;
-            }
-        }
-        address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
-                            len);
-        g_free(data);
-
-        qtest_send_prefix(chr);
-        qtest_send(chr, "OK\n");
-    } else if (strcmp(words[0], "memset") == 0) {
-        uint64_t addr, len;
-        uint8_t *data;
-        unsigned long pattern;
-        int ret;
-
-        g_assert(words[1] && words[2] && words[3]);
-        ret = qemu_strtou64(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        ret = qemu_strtou64(words[2], NULL, 0, &len);
-        g_assert(ret == 0);
-        ret = qemu_strtoul(words[3], NULL, 0, &pattern);
-        g_assert(ret == 0);
-
-        if (len) {
-            data = g_malloc(len);
-            memset(data, pattern, len);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
-                                data, len);
-            g_free(data);
-        }
-
-        qtest_send_prefix(chr);
-        qtest_send(chr, "OK\n");
-    }  else if (strcmp(words[0], "b64write") == 0) {
-        uint64_t addr, len;
-        uint8_t *data;
-        size_t data_len;
-        gsize out_len;
-        int ret;
-
-        g_assert(words[1] && words[2] && words[3]);
-        ret = qemu_strtou64(words[1], NULL, 0, &addr);
-        g_assert(ret == 0);
-        ret = qemu_strtou64(words[2], NULL, 0, &len);
-        g_assert(ret == 0);
-
-        data_len = strlen(words[3]);
-        if (data_len < 3) {
-            qtest_send(chr, "ERR invalid argument size\n");
-            return;
-        }
-
-        data = g_base64_decode_inplace(words[3], &out_len);
-        if (out_len != len) {
-            qtest_log_send("b64write: data length mismatch (told %"PRIu64", "
-                           "found %zu)\n",
-                           len, out_len);
-            out_len = MIN(out_len, len);
-        }
-
-        address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
-                            len);
-
-        qtest_send_prefix(chr);
-        qtest_send(chr, "OK\n");
-    } else if (strcmp(words[0], "endianness") == 0) {
-        qtest_send_prefix(chr);
-        if (target_words_bigendian()) {
-            qtest_sendf(chr, "OK big\n");
-        } else {
-            qtest_sendf(chr, "OK little\n");
-        }
-    } else if (qtest_enabled() && strcmp(words[0], "clock_step") == 0) {
-        int64_t ns;
-
-        if (words[1]) {
-            int ret = qemu_strtoi64(words[1], NULL, 0, &ns);
-            g_assert(ret == 0);
-        } else {
-            ns = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL,
-                                            QEMU_TIMER_ATTR_ALL);
-        }
-        qtest_clock_warp(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + ns);
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "OK %"PRIi64"\n",
-                    (int64_t)qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
-    } else if (strcmp(words[0], "module_load") == 0) {
-        Error *local_err = NULL;
-        int rv;
-        g_assert(words[1] && words[2]);
-
-        qtest_send_prefix(chr);
-        rv = module_load(words[1], words[2], &local_err);
-        if (rv > 0) {
-            qtest_sendf(chr, "OK\n");
-        } else {
-            if (rv < 0) {
-                error_report_err(local_err);
-            }
-            qtest_sendf(chr, "FAIL\n");
-        }
-    } else if (qtest_enabled() && strcmp(words[0], "clock_set") == 0) {
-        int64_t ns;
-        int ret;
-
-        g_assert(words[1]);
-        ret = qemu_strtoi64(words[1], NULL, 0, &ns);
-        g_assert(ret == 0);
-        qtest_clock_warp(ns);
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "OK %"PRIi64"\n",
-                    (int64_t)qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
-    } else if (process_command_cb && process_command_cb(chr, words)) {
-        /* Command got consumed by the callback handler */
-    } else {
-        qtest_send_prefix(chr);
-        qtest_sendf(chr, "FAIL Unknown command '%s'\n", words[0]);
-    }
-}
-
-static void qtest_process_inbuf(CharBackend *chr, GString *inbuf)
-{
-    char *end;
-
-    while ((end = strchr(inbuf->str, '\n')) != NULL) {
-        size_t offset;
-        GString *cmd;
-        gchar **words;
-
-        offset = end - inbuf->str;
-
-        cmd = g_string_new_len(inbuf->str, offset);
-        g_string_erase(inbuf, 0, offset + 1);
-
-        words = g_strsplit(cmd->str, " ", 0);
-        qtest_process_command(chr, words);
-        g_strfreev(words);
-
-        g_string_free(cmd, TRUE);
-    }
-}
-
-static void qtest_read(void *opaque, const uint8_t *buf, int size)
-{
-    CharBackend *chr = opaque;
-
-    g_string_append_len(inbuf, (const gchar *)buf, size);
-    qtest_process_inbuf(chr, inbuf);
-}
-
-static int qtest_can_read(void *opaque)
-{
-    return 1024;
-}
-
-static void qtest_event(void *opaque, QEMUChrEvent event)
-{
-    int i;
-
-    switch (event) {
-    case CHR_EVENT_OPENED:
-        /*
-         * We used to call qemu_system_reset() here, hoping we could
-         * use the same process for multiple tests that way.  Never
-         * used.  Injects an extra reset even when it's not used, and
-         * that can mess up tests, e.g. -boot once.
-         */
-        for (i = 0; i < ARRAY_SIZE(irq_levels); i++) {
-            irq_levels[i] = 0;
-        }
-
-        g_clear_pointer(&timer, g_timer_destroy);
-        timer = g_timer_new();
-        qtest_opened = true;
-        if (qtest_log_fp) {
-            fprintf(qtest_log_fp, "[I " FMT_timeval "] OPENED\n", g_timer_elapsed(timer, NULL));
-        }
-        break;
-    case CHR_EVENT_CLOSED:
-        qtest_opened = false;
-        if (qtest_log_fp) {
-            fprintf(qtest_log_fp, "[I +" FMT_timeval "] CLOSED\n", g_timer_elapsed(timer, NULL));
-        }
-        g_clear_pointer(&timer, g_timer_destroy);
-        break;
-    default:
-        break;
-    }
-}
-
-void qtest_server_init(const char *qtest_chrdev, const char *qtest_log, Error **errp)
-{
-    ERRP_GUARD();
-    Chardev *chr;
-    Object *qtest;
-
-    chr = qemu_chr_new("qtest", qtest_chrdev, NULL);
-    if (chr == NULL) {
-        error_setg(errp, "Failed to initialize device for qtest: \"%s\"",
-                   qtest_chrdev);
-        return;
-    }
-
-    qtest = object_new(TYPE_QTEST);
-    object_property_set_str(qtest, "chardev", chr->label, &error_abort);
-    if (qtest_log) {
-        object_property_set_str(qtest, "log", qtest_log, &error_abort);
-    }
-    object_property_add_child(qdev_get_machine(), "qtest", qtest);
-    user_creatable_complete(USER_CREATABLE(qtest), errp);
-    if (*errp) {
-        object_unparent(qtest);
-    }
-    object_unref(OBJECT(chr));
-    object_unref(qtest);
-}
-
-static bool qtest_server_start(QTest *q, Error **errp)
-{
-    Chardev *chr = q->chr;
-    const char *qtest_log = q->log;
-
-    if (qtest_log) {
-        if (strcmp(qtest_log, "none") != 0) {
-            qtest_log_fp = fopen(qtest_log, "w+");
-        }
-    } else {
-        qtest_log_fp = stderr;
-    }
-
-    if (!qemu_chr_fe_init(&q->qtest_chr, chr, errp)) {
-        return false;
-    }
-    qemu_chr_fe_set_handlers(&q->qtest_chr, qtest_can_read, qtest_read,
-                             qtest_event, NULL, &q->qtest_chr, NULL, true);
-    qemu_chr_fe_set_echo(&q->qtest_chr, true);
-
-    inbuf = g_string_new("");
-
-    if (!qtest_server_send) {
-        qtest_server_set_send_handler(qtest_server_char_be_send, &q->qtest_chr);
-    }
-    qtest = q;
-    return true;
-}
-
-void qtest_server_set_send_handler(void (*send)(void*, const char*),
-                                   void *opaque)
-{
-    qtest_server_send = send;
-    qtest_server_send_opaque = opaque;
-}
-
-bool qtest_driver(void)
-{
-    return qtest && qtest->qtest_chr.chr != NULL;
-}
-
-void qtest_server_inproc_recv(void *dummy, const char *buf)
-{
-    static GString *gstr;
-    if (!gstr) {
-        gstr = g_string_new(NULL);
-    }
-    g_string_append(gstr, buf);
-    if (gstr->str[gstr->len - 1] == '\n') {
-        qtest_process_inbuf(NULL, gstr);
-        g_string_truncate(gstr, 0);
-    }
-}
-
-static void qtest_complete(UserCreatable *uc, Error **errp)
-{
-    QTest *q = QTEST(uc);
-    if (qtest) {
-        error_setg(errp, "Only one instance of qtest can be created");
-        return;
-    }
-    if (!q->chr_name) {
-        error_setg(errp, "No backend specified");
-        return;
-    }
-
-    if (OBJECT(uc)->parent != qdev_get_machine()) {
-        q->has_machine_link = true;
-        object_property_add_const_link(qdev_get_machine(), "qtest", OBJECT(uc));
-    } else {
-        /* -qtest was used.  */
-    }
-
-    qtest_server_start(q, errp);
-}
-
-static void qtest_unparent(Object *obj)
-{
-    QTest *q = QTEST(obj);
-
-    if (qtest == q) {
-        qemu_chr_fe_disconnect(&q->qtest_chr);
-        assert(!qtest_opened);
-        qemu_chr_fe_deinit(&q->qtest_chr, false);
-        if (qtest_log_fp) {
-            fclose(qtest_log_fp);
-            qtest_log_fp = NULL;
-        }
-        qtest = NULL;
-    }
-
-    if (q->has_machine_link) {
-        object_property_del(qdev_get_machine(), "qtest");
-        q->has_machine_link = false;
-    }
-}
-
-static void qtest_set_log(Object *obj, const char *value, Error **errp)
-{
-    QTest *q = QTEST(obj);
-
-    if (qtest == q) {
-        error_setg(errp, "Property 'log' can not be set now");
-    } else {
-        g_free(q->log);
-        q->log = g_strdup(value);
-    }
-}
-
-static char *qtest_get_log(Object *obj, Error **errp)
-{
-    QTest *q = QTEST(obj);
-
-    return g_strdup(q->log);
-}
-
-static void qtest_set_chardev(Object *obj, const char *value, Error **errp)
-{
-    QTest *q = QTEST(obj);
-    Chardev *chr;
-
-    if (qtest == q) {
-        error_setg(errp, "Property 'chardev' can not be set now");
-        return;
-    }
-
-    chr = qemu_chr_find(value);
-    if (!chr) {
-        error_setg(errp, "Cannot find character device '%s'", value);
-        return;
-    }
-
-    g_free(q->chr_name);
-    q->chr_name = g_strdup(value);
-
-    if (q->chr) {
-        object_unref(q->chr);
-    }
-    q->chr = chr;
-    object_ref(chr);
-}
-
-static char *qtest_get_chardev(Object *obj, Error **errp)
-{
-    QTest *q = QTEST(obj);
-
-    return g_strdup(q->chr_name);
-}
-
-static void qtest_class_init(ObjectClass *oc, void *data)
-{
-    UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
-
-    oc->unparent = qtest_unparent;
-    ucc->complete = qtest_complete;
-
-    object_class_property_add_str(oc, "chardev",
-                                  qtest_get_chardev, qtest_set_chardev);
-    object_class_property_add_str(oc, "log",
-                                  qtest_get_log, qtest_set_log);
-}
-
-static const TypeInfo qtest_info = {
-    .name = TYPE_QTEST,
-    .parent = TYPE_OBJECT,
-    .class_init = qtest_class_init,
-    .instance_size = sizeof(QTest),
-    .interfaces = (InterfaceInfo[]) {
-        { TYPE_USER_CREATABLE },
-        { }
-    }
-};
-
-static void register_types(void)
-{
-    type_register_static(&qtest_info);
-}
-
-type_init(register_types);