123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026 |
- /*
- * 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 "system/qtest.h"
- #include "system/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 "hw/core/cpu.h"
- #include "qemu/accel.h"
- #include "system/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.
- *
- * If the commands FAIL then time wasn't advanced which is likely
- * because the machine was in a paused state or no timer events exist
- * in the future. This will cause qtest to abort and the test will
- * need to check its assumptions.
- *
- * .. 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;
- }
- }
- static void qtest_log_timestamp(void)
- {
- 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_log_timestamp();
- 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_log_timestamp();
- 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_sendf(chr, "IRQ %s %d\n",
- level ? "raise" : "lower", n);
- }
- }
- 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(chr, "FAIL Unknown device\n");
- return;
- }
- if (is_named && !is_outbound) {
- qtest_send(chr, "FAIL Interception of named in-GPIOs not yet supported\n");
- return;
- }
- if (irq_intercept_dev) {
- 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;
- }
- }
- 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(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(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(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_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(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_sendf(chr, "OK 0x%016" PRIx64 "\n", value);
- } else if (strcmp(words[0], "read") == 0) {
- g_autoptr(GString) enc = NULL;
- uint64_t addr, len;
- uint8_t *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);
- /* 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 = qemu_hexdump_line(NULL, data, len, 0, 0);
- qtest_sendf(chr, "OK 0x%s\n", enc->str);
- g_free(data);
- } 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_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(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(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(chr, "OK\n");
- } else if (strcmp(words[0], "endianness") == 0) {
- 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 old_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- int64_t ns, new_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);
- if (ns < 0) {
- qtest_send(chr, "FAIL "
- "cannot advance clock to the next deadline "
- "because there is no pending deadline\n");
- return;
- }
- }
- new_ns = qemu_clock_advance_virtual_time(old_ns + ns);
- if (new_ns > old_ns) {
- qtest_sendf(chr, "OK %"PRIi64"\n", new_ns);
- } else {
- qtest_sendf(chr, "FAIL could not advance time\n");
- }
- } else if (strcmp(words[0], "module_load") == 0) {
- Error *local_err = NULL;
- int rv;
- g_assert(words[1] && words[2]);
- 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, new_ns;
- int ret;
- g_assert(words[1]);
- ret = qemu_strtoi64(words[1], NULL, 0, &ns);
- g_assert(ret == 0);
- new_ns = qemu_clock_advance_virtual_time(ns);
- qtest_sendf(chr, "%s %"PRIi64"\n",
- new_ns == ns ? "OK" : "FAIL", new_ns);
- } else if (process_command_cb && process_command_cb(chr, words)) {
- /* Command got consumed by the callback handler */
- } else {
- qtest_sendf(chr, "FAIL Unknown command '%s'\n", words[0]);
- }
- }
- /*
- * Process as much of @inbuf as we can in newline terminated chunks.
- * Remove the processed commands from @inbuf as we go.
- */
- static void qtest_process_inbuf(CharBackend *chr, GString *inbuf)
- {
- char *end;
- while ((end = strchr(inbuf->str, '\n')) != NULL) {
- size_t len = end - inbuf->str;
- g_autofree char *cmd = g_strndup(inbuf->str, len);
- g_auto(GStrv) words = g_strsplit(cmd, " ", 0);
- g_string_erase(inbuf, 0, len + 1);
- qtest_process_command(chr, words);
- }
- }
- 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 *qobj;
- chr = qemu_chr_new("qtest", qtest_chrdev, NULL);
- if (chr == NULL) {
- error_setg(errp, "Failed to initialize device for qtest: \"%s\"",
- qtest_chrdev);
- return;
- }
- qobj = object_new(TYPE_QTEST);
- object_property_set_str(qobj, "chardev", chr->label, &error_abort);
- if (qtest_log) {
- object_property_set_str(qobj, "log", qtest_log, &error_abort);
- }
- object_property_add_child(qdev_get_machine(), "qtest", qobj);
- user_creatable_complete(USER_CREATABLE(qobj), errp);
- if (*errp) {
- object_unparent(qobj);
- }
- object_unref(OBJECT(chr));
- object_unref(qobj);
- }
- 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);
|