#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "migration/migration.h"
+#include "../migration/migration.h"
#include "migration/vmstate.h"
+#include "migration/qemu-file-types.h"
+#include "../migration/qemu-file.h"
+#include "../migration/qemu-file-channel.h"
+#include "../migration/savevm.h"
#include "qemu/coroutine.h"
+#include "qemu/module.h"
#include "io/channel-file.h"
static char temp_file[] = "/tmp/vmst.test.XXXXXX";
static int temp_fd;
-/* Fake yield_until_fd_readable() implementation so we don't have to pull the
- * coroutine code as dependency.
- */
-void yield_until_fd_readable(int fd)
-{
- fd_set fds;
- FD_ZERO(&fds);
- FD_SET(fd, &fds);
- select(fd + 1, &fds, NULL, NULL, NULL);
-}
-
/* Duplicate temp_fd and seek to the beginning of the file */
static QEMUFile *open_test_file(bool write)
QEMUFile *f = open_test_file(true);
/* Save file with vmstate */
- vmstate_save_state(f, desc, obj, NULL);
+ int ret = vmstate_save_state(f, desc, obj, NULL);
+ g_assert(!ret);
qemu_put_byte(f, QEMU_VM_EOF);
g_assert(!qemu_file_get_error(f));
qemu_fclose(f);
qemu_fclose(fsave);
}
-static void compare_vmstate(uint8_t *wire, size_t size)
+static void compare_vmstate(const uint8_t *wire, size_t size)
{
QEMUFile *f = open_test_file(false);
uint8_t result[size];
}
static int load_vmstate_one(const VMStateDescription *desc, void *obj,
- int version, uint8_t *wire, size_t size)
+ int version, const uint8_t *wire, size_t size)
{
QEMUFile *f;
int ret;
static int load_vmstate(const VMStateDescription *desc,
void *obj, void *obj_clone,
void (*obj_copy)(void *, void*),
- int version, uint8_t *wire, size_t size)
+ int version, const uint8_t *wire, size_t size)
{
/* We test with zero size */
obj_copy(obj_clone, obj);
FIELD_EQUAL(i64_1);
FIELD_EQUAL(i64_2);
}
-#undef FIELD_EQUAL
+
+typedef struct TestSimpleArray {
+ uint16_t u16_1[3];
+} TestSimpleArray;
+
+/* Object instantiation, we are going to use it in more than one test */
+
+TestSimpleArray obj_simple_arr = {
+ .u16_1 = { 0x42, 0x43, 0x44 },
+};
+
+/* Description of the values. If you add a primitive type
+ you are expected to add a test here */
+
+static const VMStateDescription vmstate_simple_arr = {
+ .name = "simple/array",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT16_ARRAY(u16_1, TestSimpleArray, 3),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+uint8_t wire_simple_arr[] = {
+ /* u16_1 */ 0x00, 0x42,
+ /* u16_1 */ 0x00, 0x43,
+ /* u16_1 */ 0x00, 0x44,
+ QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
+};
+
+static void obj_simple_arr_copy(void *target, void *source)
+{
+ memcpy(target, source, sizeof(TestSimpleArray));
+}
+
+static void test_simple_array(void)
+{
+ TestSimpleArray obj, obj_clone;
+
+ memset(&obj, 0, sizeof(obj));
+ save_vmstate(&vmstate_simple_arr, &obj_simple_arr);
+
+ compare_vmstate(wire_simple_arr, sizeof(wire_simple_arr));
+
+ SUCCESS(load_vmstate(&vmstate_simple_arr, &obj, &obj_clone,
+ obj_simple_arr_copy, 1, wire_simple_arr,
+ sizeof(wire_simple_arr)));
+}
typedef struct TestStruct {
uint32_t a, b, c, e;
QEMUFile *fsave = open_test_file(true);
TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6,
.skip_c_e = false };
- vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
+ int ret = vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
+ g_assert(!ret);
g_assert(!qemu_file_get_error(fsave));
uint8_t expected[] = {
QEMUFile *fsave = open_test_file(true);
TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6,
.skip_c_e = true };
- vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
+ int ret = vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
+ g_assert(!ret);
g_assert(!qemu_file_get_error(fsave));
uint8_t expected[] = {
qemu_fclose(loading);
}
-
typedef struct {
int32_t i;
} TestStructTriv;
}
};
+/* test array migration */
+
#define AR_SIZE 4
typedef struct {
VMSTATE_END_OF_LIST()
}
};
+
+static uint8_t wire_arr_ptr_no0[] = {
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x02,
+ 0x00, 0x00, 0x00, 0x03,
+ QEMU_VM_EOF
+};
+
static void test_arr_ptr_str_no0_save(void)
{
TestStructTriv ar[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
TestArrayOfPtrToStuct sample = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
- uint8_t wire_sample[] = {
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x01,
- 0x00, 0x00, 0x00, 0x02,
- 0x00, 0x00, 0x00, 0x03,
- QEMU_VM_EOF
- };
save_vmstate(&vmsd_arps, &sample);
- compare_vmstate(wire_sample, sizeof(wire_sample));
+ compare_vmstate(wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0));
}
static void test_arr_ptr_str_no0_load(void)
TestStructTriv ar[AR_SIZE] = {};
TestArrayOfPtrToStuct obj = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
int idx;
- uint8_t wire_sample[] = {
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x01,
- 0x00, 0x00, 0x00, 0x02,
- 0x00, 0x00, 0x00, 0x03,
- QEMU_VM_EOF
- };
- save_buffer(wire_sample, sizeof(wire_sample));
+ save_buffer(wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0));
+ SUCCESS(load_vmstate_one(&vmsd_arps, &obj, 1,
+ wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0)));
+ for (idx = 0; idx < AR_SIZE; ++idx) {
+ /* compare the target array ar with the ground truth array ar_gt */
+ g_assert_cmpint(ar_gt[idx].i, ==, ar[idx].i);
+ }
+}
+
+static uint8_t wire_arr_ptr_0[] = {
+ 0x00, 0x00, 0x00, 0x00,
+ VMS_NULLPTR_MARKER,
+ 0x00, 0x00, 0x00, 0x02,
+ 0x00, 0x00, 0x00, 0x03,
+ QEMU_VM_EOF
+};
+
+static void test_arr_ptr_str_0_save(void)
+{
+ TestStructTriv ar[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
+ TestArrayOfPtrToStuct sample = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
+
+ save_vmstate(&vmsd_arps, &sample);
+ compare_vmstate(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
+}
+
+static void test_arr_ptr_str_0_load(void)
+{
+ TestStructTriv ar_gt[AR_SIZE] = {{.i = 0}, {.i = 0}, {.i = 2}, {.i = 3} };
+ TestStructTriv ar[AR_SIZE] = {};
+ TestArrayOfPtrToStuct obj = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
+ int idx;
+
+ save_buffer(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
SUCCESS(load_vmstate_one(&vmsd_arps, &obj, 1,
- wire_sample, sizeof(wire_sample)));
+ wire_arr_ptr_0, sizeof(wire_arr_ptr_0)));
for (idx = 0; idx < AR_SIZE; ++idx) {
/* compare the target array ar with the ground truth array ar_gt */
g_assert_cmpint(ar_gt[idx].i, ==, ar[idx].i);
}
+ for (idx = 0; idx < AR_SIZE; ++idx) {
+ if (idx == 1) {
+ g_assert_cmpint((uintptr_t)(obj.ar[idx]), ==, 0);
+ } else {
+ g_assert_cmpint((uintptr_t)(obj.ar[idx]), !=, 0);
+ }
+ }
+}
+
+typedef struct TestArrayOfPtrToInt {
+ int32_t *ar[AR_SIZE];
+} TestArrayOfPtrToInt;
+
+const VMStateDescription vmsd_arpp = {
+ .name = "test/arps",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_ARRAY_OF_POINTER(ar, TestArrayOfPtrToInt,
+ AR_SIZE, 0, vmstate_info_int32, int32_t*),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void test_arr_ptr_prim_0_save(void)
+{
+ int32_t ar[AR_SIZE] = {0 , 1, 2, 3};
+ TestArrayOfPtrToInt sample = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
+
+ save_vmstate(&vmsd_arpp, &sample);
+ compare_vmstate(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
+}
+
+static void test_arr_ptr_prim_0_load(void)
+{
+ int32_t ar_gt[AR_SIZE] = {0, 1, 2, 3};
+ int32_t ar[AR_SIZE] = {3 , 42, 1, 0};
+ TestArrayOfPtrToInt obj = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
+ int idx;
+
+ save_buffer(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
+ SUCCESS(load_vmstate_one(&vmsd_arpp, &obj, 1,
+ wire_arr_ptr_0, sizeof(wire_arr_ptr_0)));
+ for (idx = 0; idx < AR_SIZE; ++idx) {
+ /* compare the target array ar with the ground truth array ar_gt */
+ if (idx == 1) {
+ g_assert_cmpint(42, ==, ar[idx]);
+ } else {
+ g_assert_cmpint(ar_gt[idx], ==, ar[idx]);
+ }
+ }
+}
+
+/* test QTAILQ migration */
+typedef struct TestQtailqElement TestQtailqElement;
+
+struct TestQtailqElement {
+ bool b;
+ uint8_t u8;
+ QTAILQ_ENTRY(TestQtailqElement) next;
+};
+
+typedef struct TestQtailq {
+ int16_t i16;
+ QTAILQ_HEAD(, TestQtailqElement) q;
+ int32_t i32;
+} TestQtailq;
+
+static const VMStateDescription vmstate_q_element = {
+ .name = "test/queue-element",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL(b, TestQtailqElement),
+ VMSTATE_UINT8(u8, TestQtailqElement),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static const VMStateDescription vmstate_q = {
+ .name = "test/queue",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT16(i16, TestQtailq),
+ VMSTATE_QTAILQ_V(q, TestQtailq, 1, vmstate_q_element, TestQtailqElement,
+ next),
+ VMSTATE_INT32(i32, TestQtailq),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+uint8_t wire_q[] = {
+ /* i16 */ 0xfe, 0x0,
+ /* start of element 0 of q */ 0x01,
+ /* .b */ 0x01,
+ /* .u8 */ 0x82,
+ /* start of element 1 of q */ 0x01,
+ /* b */ 0x00,
+ /* u8 */ 0x41,
+ /* end of q */ 0x00,
+ /* i32 */ 0x00, 0x01, 0x11, 0x70,
+ QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
+};
+
+static void test_save_q(void)
+{
+ TestQtailq obj_q = {
+ .i16 = -512,
+ .i32 = 70000,
+ };
+
+ TestQtailqElement obj_qe1 = {
+ .b = true,
+ .u8 = 130,
+ };
+
+ TestQtailqElement obj_qe2 = {
+ .b = false,
+ .u8 = 65,
+ };
+
+ QTAILQ_INIT(&obj_q.q);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
+
+ save_vmstate(&vmstate_q, &obj_q);
+ compare_vmstate(wire_q, sizeof(wire_q));
+}
+
+static void test_load_q(void)
+{
+ TestQtailq obj_q = {
+ .i16 = -512,
+ .i32 = 70000,
+ };
+
+ TestQtailqElement obj_qe1 = {
+ .b = true,
+ .u8 = 130,
+ };
+
+ TestQtailqElement obj_qe2 = {
+ .b = false,
+ .u8 = 65,
+ };
+
+ QTAILQ_INIT(&obj_q.q);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
+
+ QEMUFile *fsave = open_test_file(true);
+
+ qemu_put_buffer(fsave, wire_q, sizeof(wire_q));
+ g_assert(!qemu_file_get_error(fsave));
+ qemu_fclose(fsave);
+
+ QEMUFile *fload = open_test_file(false);
+ TestQtailq tgt;
+
+ QTAILQ_INIT(&tgt.q);
+ vmstate_load_state(fload, &vmstate_q, &tgt, 1);
+ char eof = qemu_get_byte(fload);
+ g_assert(!qemu_file_get_error(fload));
+ g_assert_cmpint(tgt.i16, ==, obj_q.i16);
+ g_assert_cmpint(tgt.i32, ==, obj_q.i32);
+ g_assert_cmpint(eof, ==, QEMU_VM_EOF);
+
+ TestQtailqElement *qele_from = QTAILQ_FIRST(&obj_q.q);
+ TestQtailqElement *qlast_from = QTAILQ_LAST(&obj_q.q);
+ TestQtailqElement *qele_to = QTAILQ_FIRST(&tgt.q);
+ TestQtailqElement *qlast_to = QTAILQ_LAST(&tgt.q);
+
+ while (1) {
+ g_assert_cmpint(qele_to->b, ==, qele_from->b);
+ g_assert_cmpint(qele_to->u8, ==, qele_from->u8);
+ if ((qele_from == qlast_from) || (qele_to == qlast_to)) {
+ break;
+ }
+ qele_from = QTAILQ_NEXT(qele_from, next);
+ qele_to = QTAILQ_NEXT(qele_to, next);
+ }
+
+ g_assert_cmpint((uintptr_t) qele_from, ==, (uintptr_t) qlast_from);
+ g_assert_cmpint((uintptr_t) qele_to, ==, (uintptr_t) qlast_to);
+
+ /* clean up */
+ TestQtailqElement *qele;
+ while (!QTAILQ_EMPTY(&tgt.q)) {
+ qele = QTAILQ_LAST(&tgt.q);
+ QTAILQ_REMOVE(&tgt.q, qele, next);
+ free(qele);
+ qele = NULL;
+ }
+ qemu_fclose(fload);
+}
+
+typedef struct TmpTestStruct {
+ TestStruct *parent;
+ int64_t diff;
+} TmpTestStruct;
+
+static int tmp_child_pre_save(void *opaque)
+{
+ struct TmpTestStruct *tts = opaque;
+
+ tts->diff = tts->parent->b - tts->parent->a;
+
+ return 0;
+}
+
+static int tmp_child_post_load(void *opaque, int version_id)
+{
+ struct TmpTestStruct *tts = opaque;
+
+ tts->parent->b = tts->parent->a + tts->diff;
+
+ return 0;
+}
+
+static const VMStateDescription vmstate_tmp_back_to_parent = {
+ .name = "test/tmp_child_parent",
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(f, TestStruct),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_tmp_child = {
+ .name = "test/tmp_child",
+ .pre_save = tmp_child_pre_save,
+ .post_load = tmp_child_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT64(diff, TmpTestStruct),
+ VMSTATE_STRUCT_POINTER(parent, TmpTestStruct,
+ vmstate_tmp_back_to_parent, TestStruct),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_with_tmp = {
+ .name = "test/with_tmp",
+ .version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(a, TestStruct),
+ VMSTATE_UINT64(d, TestStruct),
+ VMSTATE_WITH_TMP(TestStruct, TmpTestStruct, vmstate_tmp_child),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void obj_tmp_copy(void *target, void *source)
+{
+ memcpy(target, source, sizeof(TestStruct));
+}
+
+static void test_tmp_struct(void)
+{
+ TestStruct obj, obj_clone;
+
+ uint8_t const wire_with_tmp[] = {
+ /* u32 a */ 0x00, 0x00, 0x00, 0x02,
+ /* u64 d */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ /* diff */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
+ /* u64 f */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
+ QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
+ };
+
+ memset(&obj, 0, sizeof(obj));
+ obj.a = 2;
+ obj.b = 4;
+ obj.d = 1;
+ obj.f = 8;
+ save_vmstate(&vmstate_with_tmp, &obj);
+
+ compare_vmstate(wire_with_tmp, sizeof(wire_with_tmp));
+
+ memset(&obj, 0, sizeof(obj));
+ SUCCESS(load_vmstate(&vmstate_with_tmp, &obj, &obj_clone,
+ obj_tmp_copy, 1, wire_with_tmp,
+ sizeof(wire_with_tmp)));
+ g_assert_cmpint(obj.a, ==, 2); /* From top level vmsd */
+ g_assert_cmpint(obj.b, ==, 4); /* from the post_load */
+ g_assert_cmpint(obj.d, ==, 1); /* From top level vmsd */
+ g_assert_cmpint(obj.f, ==, 8); /* From the child->parent */
}
int main(int argc, char **argv)
module_call_init(MODULE_INIT_QOM);
+ setenv("QTEST_SILENT_ERRORS", "1", 1);
+
g_test_init(&argc, &argv, NULL);
g_test_add_func("/vmstate/simple/primitive", test_simple_primitive);
+ g_test_add_func("/vmstate/simple/array", test_simple_array);
g_test_add_func("/vmstate/versioned/load/v1", test_load_v1);
g_test_add_func("/vmstate/versioned/load/v2", test_load_v2);
g_test_add_func("/vmstate/field_exists/load/noskip", test_load_noskip);
test_arr_ptr_str_no0_save);
g_test_add_func("/vmstate/array/ptr/str/no0/load",
test_arr_ptr_str_no0_load);
+ g_test_add_func("/vmstate/array/ptr/str/0/save", test_arr_ptr_str_0_save);
+ g_test_add_func("/vmstate/array/ptr/str/0/load",
+ test_arr_ptr_str_0_load);
+ g_test_add_func("/vmstate/array/ptr/prim/0/save",
+ test_arr_ptr_prim_0_save);
+ g_test_add_func("/vmstate/array/ptr/prim/0/load",
+ test_arr_ptr_prim_0_load);
+ g_test_add_func("/vmstate/qtailq/save/saveq", test_save_q);
+ g_test_add_func("/vmstate/qtailq/load/loadq", test_load_q);
+ g_test_add_func("/vmstate/tmp_struct", test_tmp_struct);
g_test_run();
close(temp_fd);
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