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Diffstat (limited to 'tests/unit/test-vmstate.c')
| -rw-r--r-- | tests/unit/test-vmstate.c | 1529 |
1 files changed, 1529 insertions, 0 deletions
diff --git a/tests/unit/test-vmstate.c b/tests/unit/test-vmstate.c new file mode 100644 index 0000000000..a001879585 --- /dev/null +++ b/tests/unit/test-vmstate.c @@ -0,0 +1,1529 @@ +/* + * Test code for VMState + * + * Copyright (c) 2013 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.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 int temp_fd; + + +/* Duplicate temp_fd and seek to the beginning of the file */ +static QEMUFile *open_test_file(bool write) +{ + int fd = dup(temp_fd); + QIOChannel *ioc; + QEMUFile *f; + + lseek(fd, 0, SEEK_SET); + if (write) { + g_assert_cmpint(ftruncate(fd, 0), ==, 0); + } + ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd)); + if (write) { + f = qemu_fopen_channel_output(ioc); + } else { + f = qemu_fopen_channel_input(ioc); + } + object_unref(OBJECT(ioc)); + return f; +} + +#define SUCCESS(val) \ + g_assert_cmpint((val), ==, 0) + +#define FAILURE(val) \ + g_assert_cmpint((val), !=, 0) + +static void save_vmstate(const VMStateDescription *desc, void *obj) +{ + QEMUFile *f = open_test_file(true); + + /* Save file with vmstate */ + 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); +} + +static void save_buffer(const uint8_t *buf, size_t buf_size) +{ + QEMUFile *fsave = open_test_file(true); + qemu_put_buffer(fsave, buf, buf_size); + qemu_fclose(fsave); +} + +static void compare_vmstate(const uint8_t *wire, size_t size) +{ + QEMUFile *f = open_test_file(false); + uint8_t result[size]; + + /* read back as binary */ + + g_assert_cmpint(qemu_get_buffer(f, result, sizeof(result)), ==, + sizeof(result)); + g_assert(!qemu_file_get_error(f)); + + /* Compare that what is on the file is the same that what we + expected to be there */ + SUCCESS(memcmp(result, wire, sizeof(result))); + + /* Must reach EOF */ + qemu_get_byte(f); + g_assert_cmpint(qemu_file_get_error(f), ==, -EIO); + + qemu_fclose(f); +} + +static int load_vmstate_one(const VMStateDescription *desc, void *obj, + int version, const uint8_t *wire, size_t size) +{ + QEMUFile *f; + int ret; + + f = open_test_file(true); + qemu_put_buffer(f, wire, size); + qemu_fclose(f); + + f = open_test_file(false); + ret = vmstate_load_state(f, desc, obj, version); + if (ret) { + g_assert(qemu_file_get_error(f)); + } else{ + g_assert(!qemu_file_get_error(f)); + } + qemu_fclose(f); + return ret; +} + + +static int load_vmstate(const VMStateDescription *desc, + void *obj, void *obj_clone, + void (*obj_copy)(void *, void*), + int version, const uint8_t *wire, size_t size) +{ + /* We test with zero size */ + obj_copy(obj_clone, obj); + FAILURE(load_vmstate_one(desc, obj, version, wire, 0)); + + /* Stream ends with QEMU_EOF, so we need at least 3 bytes to be + * able to test in the middle */ + + if (size > 3) { + + /* We test with size - 2. We can't test size - 1 due to EOF tricks */ + obj_copy(obj, obj_clone); + FAILURE(load_vmstate_one(desc, obj, version, wire, size - 2)); + + /* Test with size/2, first half of real state */ + obj_copy(obj, obj_clone); + FAILURE(load_vmstate_one(desc, obj, version, wire, size/2)); + + /* Test with size/2, second half of real state */ + obj_copy(obj, obj_clone); + FAILURE(load_vmstate_one(desc, obj, version, wire + (size/2), size/2)); + + } + obj_copy(obj, obj_clone); + return load_vmstate_one(desc, obj, version, wire, size); +} + +/* Test struct that we are going to use for our tests */ + +typedef struct TestSimple { + bool b_1, b_2; + uint8_t u8_1; + uint16_t u16_1; + uint32_t u32_1; + uint64_t u64_1; + int8_t i8_1, i8_2; + int16_t i16_1, i16_2; + int32_t i32_1, i32_2; + int64_t i64_1, i64_2; +} TestSimple; + +/* Object instantiation, we are going to use it in more than one test */ + +TestSimple obj_simple = { + .b_1 = true, + .b_2 = false, + .u8_1 = 130, + .u16_1 = 512, + .u32_1 = 70000, + .u64_1 = 12121212, + .i8_1 = 65, + .i8_2 = -65, + .i16_1 = 512, + .i16_2 = -512, + .i32_1 = 70000, + .i32_2 = -70000, + .i64_1 = 12121212, + .i64_2 = -12121212, +}; + +/* Description of the values. If you add a primitive type + you are expected to add a test here */ + +static const VMStateDescription vmstate_simple_primitive = { + .name = "simple/primitive", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_BOOL(b_1, TestSimple), + VMSTATE_BOOL(b_2, TestSimple), + VMSTATE_UINT8(u8_1, TestSimple), + VMSTATE_UINT16(u16_1, TestSimple), + VMSTATE_UINT32(u32_1, TestSimple), + VMSTATE_UINT64(u64_1, TestSimple), + VMSTATE_INT8(i8_1, TestSimple), + VMSTATE_INT8(i8_2, TestSimple), + VMSTATE_INT16(i16_1, TestSimple), + VMSTATE_INT16(i16_2, TestSimple), + VMSTATE_INT32(i32_1, TestSimple), + VMSTATE_INT32(i32_2, TestSimple), + VMSTATE_INT64(i64_1, TestSimple), + VMSTATE_INT64(i64_2, TestSimple), + VMSTATE_END_OF_LIST() + } +}; + +/* It describes what goes through the wire. Our tests are basically: + + * save test + - save a struct a vmstate to a file + - read that file back (binary read, no vmstate) + - compare it with what we expect to be on the wire + * load test + - save to the file what we expect to be on the wire + - read struct back with vmstate in a different + - compare back with the original struct +*/ + +uint8_t wire_simple_primitive[] = { + /* b_1 */ 0x01, + /* b_2 */ 0x00, + /* u8_1 */ 0x82, + /* u16_1 */ 0x02, 0x00, + /* u32_1 */ 0x00, 0x01, 0x11, 0x70, + /* u64_1 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0xf4, 0x7c, + /* i8_1 */ 0x41, + /* i8_2 */ 0xbf, + /* i16_1 */ 0x02, 0x00, + /* i16_2 */ 0xfe, 0x0, + /* i32_1 */ 0x00, 0x01, 0x11, 0x70, + /* i32_2 */ 0xff, 0xfe, 0xee, 0x90, + /* i64_1 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0xf4, 0x7c, + /* i64_2 */ 0xff, 0xff, 0xff, 0xff, 0xff, 0x47, 0x0b, 0x84, + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ +}; + +static void obj_simple_copy(void *target, void *source) +{ + memcpy(target, source, sizeof(TestSimple)); +} + +static void test_simple_primitive(void) +{ + TestSimple obj, obj_clone; + + memset(&obj, 0, sizeof(obj)); + save_vmstate(&vmstate_simple_primitive, &obj_simple); + + compare_vmstate(wire_simple_primitive, sizeof(wire_simple_primitive)); + + SUCCESS(load_vmstate(&vmstate_simple_primitive, &obj, &obj_clone, + obj_simple_copy, 1, wire_simple_primitive, + sizeof(wire_simple_primitive))); + +#define FIELD_EQUAL(name) g_assert_cmpint(obj.name, ==, obj_simple.name) + + FIELD_EQUAL(b_1); + FIELD_EQUAL(b_2); + FIELD_EQUAL(u8_1); + FIELD_EQUAL(u16_1); + FIELD_EQUAL(u32_1); + FIELD_EQUAL(u64_1); + FIELD_EQUAL(i8_1); + FIELD_EQUAL(i8_2); + FIELD_EQUAL(i16_1); + FIELD_EQUAL(i16_2); + FIELD_EQUAL(i32_1); + FIELD_EQUAL(i32_2); + FIELD_EQUAL(i64_1); + FIELD_EQUAL(i64_2); +} + +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; + uint64_t d, f; + bool skip_c_e; +} TestStruct; + +static const VMStateDescription vmstate_versioned = { + .name = "test/versioned", + .version_id = 2, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(a, TestStruct), + VMSTATE_UINT32_V(b, TestStruct, 2), /* Versioned field in the middle, so + * we catch bugs more easily. + */ + VMSTATE_UINT32(c, TestStruct), + VMSTATE_UINT64(d, TestStruct), + VMSTATE_UINT32_V(e, TestStruct, 2), + VMSTATE_UINT64_V(f, TestStruct, 2), + VMSTATE_END_OF_LIST() + } +}; + +static void test_load_v1(void) +{ + uint8_t buf[] = { + 0, 0, 0, 10, /* a */ + 0, 0, 0, 30, /* c */ + 0, 0, 0, 0, 0, 0, 0, 40, /* d */ + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ + }; + save_buffer(buf, sizeof(buf)); + + QEMUFile *loading = open_test_file(false); + TestStruct obj = { .b = 200, .e = 500, .f = 600 }; + vmstate_load_state(loading, &vmstate_versioned, &obj, 1); + g_assert(!qemu_file_get_error(loading)); + g_assert_cmpint(obj.a, ==, 10); + g_assert_cmpint(obj.b, ==, 200); + g_assert_cmpint(obj.c, ==, 30); + g_assert_cmpint(obj.d, ==, 40); + g_assert_cmpint(obj.e, ==, 500); + g_assert_cmpint(obj.f, ==, 600); + qemu_fclose(loading); +} + +static void test_load_v2(void) +{ + uint8_t buf[] = { + 0, 0, 0, 10, /* a */ + 0, 0, 0, 20, /* b */ + 0, 0, 0, 30, /* c */ + 0, 0, 0, 0, 0, 0, 0, 40, /* d */ + 0, 0, 0, 50, /* e */ + 0, 0, 0, 0, 0, 0, 0, 60, /* f */ + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ + }; + save_buffer(buf, sizeof(buf)); + + QEMUFile *loading = open_test_file(false); + TestStruct obj; + vmstate_load_state(loading, &vmstate_versioned, &obj, 2); + g_assert_cmpint(obj.a, ==, 10); + g_assert_cmpint(obj.b, ==, 20); + g_assert_cmpint(obj.c, ==, 30); + g_assert_cmpint(obj.d, ==, 40); + g_assert_cmpint(obj.e, ==, 50); + g_assert_cmpint(obj.f, ==, 60); + qemu_fclose(loading); +} + +static bool test_skip(void *opaque, int version_id) +{ + TestStruct *t = (TestStruct *)opaque; + return !t->skip_c_e; +} + +static const VMStateDescription vmstate_skipping = { + .name = "test/skip", + .version_id = 2, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(a, TestStruct), + VMSTATE_UINT32(b, TestStruct), + VMSTATE_UINT32_TEST(c, TestStruct, test_skip), + VMSTATE_UINT64(d, TestStruct), + VMSTATE_UINT32_TEST(e, TestStruct, test_skip), + VMSTATE_UINT64_V(f, TestStruct, 2), + VMSTATE_END_OF_LIST() + } +}; + + +static void test_save_noskip(void) +{ + QEMUFile *fsave = open_test_file(true); + TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6, + .skip_c_e = false }; + int ret = vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL); + g_assert(!ret); + g_assert(!qemu_file_get_error(fsave)); + + uint8_t expected[] = { + 0, 0, 0, 1, /* a */ + 0, 0, 0, 2, /* b */ + 0, 0, 0, 3, /* c */ + 0, 0, 0, 0, 0, 0, 0, 4, /* d */ + 0, 0, 0, 5, /* e */ + 0, 0, 0, 0, 0, 0, 0, 6, /* f */ + }; + + qemu_fclose(fsave); + compare_vmstate(expected, sizeof(expected)); +} + +static void test_save_skip(void) +{ + QEMUFile *fsave = open_test_file(true); + TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6, + .skip_c_e = true }; + int ret = vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL); + g_assert(!ret); + g_assert(!qemu_file_get_error(fsave)); + + uint8_t expected[] = { + 0, 0, 0, 1, /* a */ + 0, 0, 0, 2, /* b */ + 0, 0, 0, 0, 0, 0, 0, 4, /* d */ + 0, 0, 0, 0, 0, 0, 0, 6, /* f */ + }; + + qemu_fclose(fsave); + compare_vmstate(expected, sizeof(expected)); +} + +static void test_load_noskip(void) +{ + uint8_t buf[] = { + 0, 0, 0, 10, /* a */ + 0, 0, 0, 20, /* b */ + 0, 0, 0, 30, /* c */ + 0, 0, 0, 0, 0, 0, 0, 40, /* d */ + 0, 0, 0, 50, /* e */ + 0, 0, 0, 0, 0, 0, 0, 60, /* f */ + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ + }; + save_buffer(buf, sizeof(buf)); + + QEMUFile *loading = open_test_file(false); + TestStruct obj = { .skip_c_e = false }; + vmstate_load_state(loading, &vmstate_skipping, &obj, 2); + g_assert(!qemu_file_get_error(loading)); + g_assert_cmpint(obj.a, ==, 10); + g_assert_cmpint(obj.b, ==, 20); + g_assert_cmpint(obj.c, ==, 30); + g_assert_cmpint(obj.d, ==, 40); + g_assert_cmpint(obj.e, ==, 50); + g_assert_cmpint(obj.f, ==, 60); + qemu_fclose(loading); +} + +static void test_load_skip(void) +{ + uint8_t buf[] = { + 0, 0, 0, 10, /* a */ + 0, 0, 0, 20, /* b */ + 0, 0, 0, 0, 0, 0, 0, 40, /* d */ + 0, 0, 0, 0, 0, 0, 0, 60, /* f */ + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ + }; + save_buffer(buf, sizeof(buf)); + + QEMUFile *loading = open_test_file(false); + TestStruct obj = { .skip_c_e = true, .c = 300, .e = 500 }; + vmstate_load_state(loading, &vmstate_skipping, &obj, 2); + g_assert(!qemu_file_get_error(loading)); + g_assert_cmpint(obj.a, ==, 10); + g_assert_cmpint(obj.b, ==, 20); + g_assert_cmpint(obj.c, ==, 300); + g_assert_cmpint(obj.d, ==, 40); + g_assert_cmpint(obj.e, ==, 500); + g_assert_cmpint(obj.f, ==, 60); + qemu_fclose(loading); +} + +typedef struct { + int32_t i; +} TestStructTriv; + +const VMStateDescription vmsd_tst = { + .name = "test/tst", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_INT32(i, TestStructTriv), + VMSTATE_END_OF_LIST() + } +}; + +/* test array migration */ + +#define AR_SIZE 4 + +typedef struct { + TestStructTriv *ar[AR_SIZE]; +} TestArrayOfPtrToStuct; + +const VMStateDescription vmsd_arps = { + .name = "test/arps", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(ar, TestArrayOfPtrToStuct, + AR_SIZE, 0, vmsd_tst, TestStructTriv), + 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]} }; + + save_vmstate(&vmsd_arps, &sample); + compare_vmstate(wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0)); +} + +static void test_arr_ptr_str_no0_load(void) +{ + TestStructTriv ar_gt[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} }; + TestStructTriv ar[AR_SIZE] = {}; + TestArrayOfPtrToStuct obj = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} }; + int idx; + + 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_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); +} + +/* interval (key) */ +typedef struct TestGTreeInterval { + uint64_t low; + uint64_t high; +} TestGTreeInterval; + +#define VMSTATE_INTERVAL \ +{ \ + .name = "interval", \ + .version_id = 1, \ + .minimum_version_id = 1, \ + .fields = (VMStateField[]) { \ + VMSTATE_UINT64(low, TestGTreeInterval), \ + VMSTATE_UINT64(high, TestGTreeInterval), \ + VMSTATE_END_OF_LIST() \ + } \ +} + +/* mapping (value) */ +typedef struct TestGTreeMapping { + uint64_t phys_addr; + uint32_t flags; +} TestGTreeMapping; + +#define VMSTATE_MAPPING \ +{ \ + .name = "mapping", \ + .version_id = 1, \ + .minimum_version_id = 1, \ + .fields = (VMStateField[]) { \ + VMSTATE_UINT64(phys_addr, TestGTreeMapping), \ + VMSTATE_UINT32(flags, TestGTreeMapping), \ + VMSTATE_END_OF_LIST() \ + }, \ +} + +static const VMStateDescription vmstate_interval_mapping[2] = { + VMSTATE_MAPPING, /* value */ + VMSTATE_INTERVAL /* key */ +}; + +typedef struct TestGTreeDomain { + int32_t id; + GTree *mappings; +} TestGTreeDomain; + +typedef struct TestGTreeIOMMU { + int32_t id; + GTree *domains; +} TestGTreeIOMMU; + +/* Interval comparison function */ +static gint interval_cmp(gconstpointer a, gconstpointer b, gpointer user_data) +{ + TestGTreeInterval *inta = (TestGTreeInterval *)a; + TestGTreeInterval *intb = (TestGTreeInterval *)b; + + if (inta->high < intb->low) { + return -1; + } else if (intb->high < inta->low) { + return 1; + } else { + return 0; + } +} + +/* ID comparison function */ +static gint int_cmp(gconstpointer a, gconstpointer b, gpointer user_data) +{ + guint ua = GPOINTER_TO_UINT(a); + guint ub = GPOINTER_TO_UINT(b); + return (ua > ub) - (ua < ub); +} + +static void destroy_domain(gpointer data) +{ + TestGTreeDomain *domain = (TestGTreeDomain *)data; + + g_tree_destroy(domain->mappings); + g_free(domain); +} + +static int domain_preload(void *opaque) +{ + TestGTreeDomain *domain = opaque; + + domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp, + NULL, g_free, g_free); + return 0; +} + +static int iommu_preload(void *opaque) +{ + TestGTreeIOMMU *iommu = opaque; + + iommu->domains = g_tree_new_full((GCompareDataFunc)int_cmp, + NULL, NULL, destroy_domain); + return 0; +} + +static const VMStateDescription vmstate_domain = { + .name = "domain", + .version_id = 1, + .minimum_version_id = 1, + .pre_load = domain_preload, + .fields = (VMStateField[]) { + VMSTATE_INT32(id, TestGTreeDomain), + VMSTATE_GTREE_V(mappings, TestGTreeDomain, 1, + vmstate_interval_mapping, + TestGTreeInterval, TestGTreeMapping), + VMSTATE_END_OF_LIST() + } +}; + +/* test QLIST Migration */ + +typedef struct TestQListElement { + uint32_t id; + QLIST_ENTRY(TestQListElement) next; +} TestQListElement; + +typedef struct TestQListContainer { + uint32_t id; + QLIST_HEAD(, TestQListElement) list; +} TestQListContainer; + +static const VMStateDescription vmstate_qlist_element = { + .name = "test/queue list", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(id, TestQListElement), + VMSTATE_END_OF_LIST() + } +}; + +static const VMStateDescription vmstate_iommu = { + .name = "iommu", + .version_id = 1, + .minimum_version_id = 1, + .pre_load = iommu_preload, + .fields = (VMStateField[]) { + VMSTATE_INT32(id, TestGTreeIOMMU), + VMSTATE_GTREE_DIRECT_KEY_V(domains, TestGTreeIOMMU, 1, + &vmstate_domain, TestGTreeDomain), + VMSTATE_END_OF_LIST() + } +}; + +static const VMStateDescription vmstate_container = { + .name = "test/container/qlist", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(id, TestQListContainer), + VMSTATE_QLIST_V(list, TestQListContainer, 1, vmstate_qlist_element, + TestQListElement, next), + VMSTATE_END_OF_LIST() + } +}; + +uint8_t first_domain_dump[] = { + /* id */ + 0x00, 0x0, 0x0, 0x6, + 0x00, 0x0, 0x0, 0x2, /* 2 mappings */ + 0x1, /* start of a */ + /* a */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF, + /* map_a */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00, + 0x00, 0x00, 0x00, 0x01, + 0x1, /* start of b */ + /* b */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0xFF, + /* map_b */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x02, + 0x0, /* end of gtree */ + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ +}; + +static TestGTreeDomain *create_first_domain(void) +{ + TestGTreeDomain *domain; + TestGTreeMapping *map_a, *map_b; + TestGTreeInterval *a, *b; + + domain = g_malloc0(sizeof(TestGTreeDomain)); + domain->id = 6; + + a = g_malloc0(sizeof(TestGTreeInterval)); + a->low = 0x1000; + a->high = 0x1FFF; + + b = g_malloc0(sizeof(TestGTreeInterval)); + b->low = 0x4000; + b->high = 0x4FFF; + + map_a = g_malloc0(sizeof(TestGTreeMapping)); + map_a->phys_addr = 0xa000; + map_a->flags = 1; + + map_b = g_malloc0(sizeof(TestGTreeMapping)); + map_b->phys_addr = 0xe0000; + map_b->flags = 2; + + domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp, NULL, + (GDestroyNotify)g_free, + (GDestroyNotify)g_free); + g_tree_insert(domain->mappings, a, map_a); + g_tree_insert(domain->mappings, b, map_b); + return domain; +} + +static void test_gtree_save_domain(void) +{ + TestGTreeDomain *first_domain = create_first_domain(); + + save_vmstate(&vmstate_domain, first_domain); + compare_vmstate(first_domain_dump, sizeof(first_domain_dump)); + destroy_domain(first_domain); +} + +struct match_node_data { + GTree *tree; + gpointer key; + gpointer value; +}; + +struct tree_cmp_data { + GTree *tree1; + GTree *tree2; + GTraverseFunc match_node; +}; + +static gboolean match_interval_mapping_node(gpointer key, + gpointer value, gpointer data) +{ + TestGTreeMapping *map_a, *map_b; + TestGTreeInterval *a, *b; + struct match_node_data *d = (struct match_node_data *)data; + a = (TestGTreeInterval *)key; + b = (TestGTreeInterval *)d->key; + + map_a = (TestGTreeMapping *)value; + map_b = (TestGTreeMapping *)d->value; + + assert(a->low == b->low); + assert(a->high == b->high); + assert(map_a->phys_addr == map_b->phys_addr); + assert(map_a->flags == map_b->flags); + g_tree_remove(d->tree, key); + return true; +} + +static gboolean diff_tree(gpointer key, gpointer value, gpointer data) +{ + struct tree_cmp_data *tp = (struct tree_cmp_data *)data; + struct match_node_data d = {tp->tree2, key, value}; + + g_tree_foreach(tp->tree2, tp->match_node, &d); + g_tree_remove(tp->tree1, key); + return false; +} + +static void compare_trees(GTree *tree1, GTree *tree2, + GTraverseFunc function) +{ + struct tree_cmp_data tp = {tree1, tree2, function}; + + g_tree_foreach(tree1, diff_tree, &tp); + assert(g_tree_nnodes(tree1) == 0); + assert(g_tree_nnodes(tree2) == 0); +} + +static void diff_domain(TestGTreeDomain *d1, TestGTreeDomain *d2) +{ + assert(d1->id == d2->id); + compare_trees(d1->mappings, d2->mappings, match_interval_mapping_node); +} + +static gboolean match_domain_node(gpointer key, gpointer value, gpointer data) +{ + uint64_t id1, id2; + TestGTreeDomain *d1, *d2; + struct match_node_data *d = (struct match_node_data *)data; + + id1 = (uint64_t)(uintptr_t)key; + id2 = (uint64_t)(uintptr_t)d->key; + d1 = (TestGTreeDomain *)value; + d2 = (TestGTreeDomain *)d->value; + assert(id1 == id2); + diff_domain(d1, d2); + g_tree_remove(d->tree, key); + return true; +} + +static void diff_iommu(TestGTreeIOMMU *iommu1, TestGTreeIOMMU *iommu2) +{ + assert(iommu1->id == iommu2->id); + compare_trees(iommu1->domains, iommu2->domains, match_domain_node); +} + +static void test_gtree_load_domain(void) +{ + TestGTreeDomain *dest_domain = g_malloc0(sizeof(TestGTreeDomain)); + TestGTreeDomain *orig_domain = create_first_domain(); + QEMUFile *fload, *fsave; + char eof; + + fsave = open_test_file(true); + qemu_put_buffer(fsave, first_domain_dump, sizeof(first_domain_dump)); + g_assert(!qemu_file_get_error(fsave)); + qemu_fclose(fsave); + + fload = open_test_file(false); + + vmstate_load_state(fload, &vmstate_domain, dest_domain, 1); + eof = qemu_get_byte(fload); + g_assert(!qemu_file_get_error(fload)); + g_assert_cmpint(orig_domain->id, ==, dest_domain->id); + g_assert_cmpint(eof, ==, QEMU_VM_EOF); + + diff_domain(orig_domain, dest_domain); + destroy_domain(orig_domain); + destroy_domain(dest_domain); + qemu_fclose(fload); +} + +uint8_t iommu_dump[] = { + /* iommu id */ + 0x00, 0x0, 0x0, 0x7, + 0x00, 0x0, 0x0, 0x2, /* 2 domains */ + 0x1,/* start of domain 5 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x0, 0x0, 0x5, /* key = 5 */ + 0x00, 0x0, 0x0, 0x5, /* domain1 id */ + 0x00, 0x0, 0x0, 0x1, /* 1 mapping */ + 0x1, /* start of mappings */ + /* c */ + 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xFF, + /* map_c */ + 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, + 0x00, 0x0, 0x0, 0x3, + 0x0, /* end of domain1 mappings*/ + 0x1,/* start of domain 6 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x0, 0x0, 0x6, /* key = 6 */ + 0x00, 0x0, 0x0, 0x6, /* domain6 id */ + 0x00, 0x0, 0x0, 0x2, /* 2 mappings */ + 0x1, /* start of a */ + /* a */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF, + /* map_a */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00, + 0x00, 0x00, 0x00, 0x01, + 0x1, /* start of b */ + /* b */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0xFF, + /* map_b */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x02, + 0x0, /* end of domain6 mappings*/ + 0x0, /* end of domains */ + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ +}; + +static TestGTreeIOMMU *create_iommu(void) +{ + TestGTreeIOMMU *iommu = g_malloc0(sizeof(TestGTreeIOMMU)); + TestGTreeDomain *first_domain = create_first_domain(); + TestGTreeDomain *second_domain; + TestGTreeMapping *map_c; + TestGTreeInterval *c; + + iommu->id = 7; + iommu->domains = g_tree_new_full((GCompareDataFunc)int_cmp, NULL, + NULL, + destroy_domain); + + second_domain = g_malloc0(sizeof(TestGTreeDomain)); + second_domain->id = 5; + second_domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp, + NULL, + (GDestroyNotify)g_free, + (GDestroyNotify)g_free); + + g_tree_insert(iommu->domains, GUINT_TO_POINTER(6), first_domain); + g_tree_insert(iommu->domains, (gpointer)0x0000000000000005, second_domain); + + c = g_malloc0(sizeof(TestGTreeInterval)); + c->low = 0x1000000; + c->high = 0x1FFFFFF; + + map_c = g_malloc0(sizeof(TestGTreeMapping)); + map_c->phys_addr = 0xF000000; + map_c->flags = 0x3; + + g_tree_insert(second_domain->mappings, c, map_c); + return iommu; +} + +static void destroy_iommu(TestGTreeIOMMU *iommu) +{ + g_tree_destroy(iommu->domains); + g_free(iommu); +} + +static void test_gtree_save_iommu(void) +{ + TestGTreeIOMMU *iommu = create_iommu(); + + save_vmstate(&vmstate_iommu, iommu); + compare_vmstate(iommu_dump, sizeof(iommu_dump)); + destroy_iommu(iommu); +} + +static void test_gtree_load_iommu(void) +{ + TestGTreeIOMMU *dest_iommu = g_malloc0(sizeof(TestGTreeIOMMU)); + TestGTreeIOMMU *orig_iommu = create_iommu(); + QEMUFile *fsave, *fload; + char eof; + + fsave = open_test_file(true); + qemu_put_buffer(fsave, iommu_dump, sizeof(iommu_dump)); + g_assert(!qemu_file_get_error(fsave)); + qemu_fclose(fsave); + + fload = open_test_file(false); + vmstate_load_state(fload, &vmstate_iommu, dest_iommu, 1); + eof = qemu_get_byte(fload); + g_assert(!qemu_file_get_error(fload)); + g_assert_cmpint(orig_iommu->id, ==, dest_iommu->id); + g_assert_cmpint(eof, ==, QEMU_VM_EOF); + + diff_iommu(orig_iommu, dest_iommu); + destroy_iommu(orig_iommu); + destroy_iommu(dest_iommu); + qemu_fclose(fload); +} + +static uint8_t qlist_dump[] = { + 0x00, 0x00, 0x00, 0x01, /* container id */ + 0x1, /* start of a */ + 0x00, 0x00, 0x00, 0x0a, + 0x1, /* start of b */ + 0x00, 0x00, 0x0b, 0x00, + 0x1, /* start of c */ + 0x00, 0x0c, 0x00, 0x00, + 0x1, /* start of d */ + 0x0d, 0x00, 0x00, 0x00, + 0x0, /* end of list */ + QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */ +}; + +static TestQListContainer *alloc_container(void) +{ + TestQListElement *a = g_malloc(sizeof(TestQListElement)); + TestQListElement *b = g_malloc(sizeof(TestQListElement)); + TestQListElement *c = g_malloc(sizeof(TestQListElement)); + TestQListElement *d = g_malloc(sizeof(TestQListElement)); + TestQListContainer *container = g_malloc(sizeof(TestQListContainer)); + + a->id = 0x0a; + b->id = 0x0b00; + c->id = 0xc0000; + d->id = 0xd000000; + container->id = 1; + + QLIST_INIT(&container->list); + QLIST_INSERT_HEAD(&container->list, d, next); + QLIST_INSERT_HEAD(&container->list, c, next); + QLIST_INSERT_HEAD(&container->list, b, next); + QLIST_INSERT_HEAD(&container->list, a, next); + return container; +} + +static void free_container(TestQListContainer *container) +{ + TestQListElement *iter, *tmp; + + QLIST_FOREACH_SAFE(iter, &container->list, next, tmp) { + QLIST_REMOVE(iter, next); + g_free(iter); + } + g_free(container); +} + +static void compare_containers(TestQListContainer *c1, TestQListContainer *c2) +{ + TestQListElement *first_item_c1, *first_item_c2; + + while (!QLIST_EMPTY(&c1->list)) { + first_item_c1 = QLIST_FIRST(&c1->list); + first_item_c2 = QLIST_FIRST(&c2->list); + assert(first_item_c2); + assert(first_item_c1->id == first_item_c2->id); + QLIST_REMOVE(first_item_c1, next); + QLIST_REMOVE(first_item_c2, next); + g_free(first_item_c1); + g_free(first_item_c2); + } + assert(QLIST_EMPTY(&c2->list)); +} + +/* + * Check the prev & next fields are correct by doing list + * manipulations on the container. We will do that for both + * the source and the destination containers + */ +static void manipulate_container(TestQListContainer *c) +{ + TestQListElement *prev = NULL, *iter = QLIST_FIRST(&c->list); + TestQListElement *elem; + + elem = g_malloc(sizeof(TestQListElement)); + elem->id = 0x12; + QLIST_INSERT_AFTER(iter, elem, next); + + elem = g_malloc(sizeof(TestQListElement)); + elem->id = 0x13; + QLIST_INSERT_HEAD(&c->list, elem, next); + + while (iter) { + prev = iter; + iter = QLIST_NEXT(iter, next); + } + + elem = g_malloc(sizeof(TestQListElement)); + elem->id = 0x14; + QLIST_INSERT_BEFORE(prev, elem, next); + + elem = g_malloc(sizeof(TestQListElement)); + elem->id = 0x15; + QLIST_INSERT_AFTER(prev, elem, next); + + QLIST_REMOVE(prev, next); + g_free(prev); +} + +static void test_save_qlist(void) +{ + TestQListContainer *container = alloc_container(); + + save_vmstate(&vmstate_container, container); + compare_vmstate(qlist_dump, sizeof(qlist_dump)); + free_container(container); +} + +static void test_load_qlist(void) +{ + QEMUFile *fsave, *fload; + TestQListContainer *orig_container = alloc_container(); + TestQListContainer *dest_container = g_malloc0(sizeof(TestQListContainer)); + char eof; + + QLIST_INIT(&dest_container->list); + + fsave = open_test_file(true); + qemu_put_buffer(fsave, qlist_dump, sizeof(qlist_dump)); + g_assert(!qemu_file_get_error(fsave)); + qemu_fclose(fsave); + + fload = open_test_file(false); + vmstate_load_state(fload, &vmstate_container, dest_container, 1); + eof = qemu_get_byte(fload); + g_assert(!qemu_file_get_error(fload)); + g_assert_cmpint(eof, ==, QEMU_VM_EOF); + manipulate_container(orig_container); + manipulate_container(dest_container); + compare_containers(orig_container, dest_container); + free_container(orig_container); + free_container(dest_container); + 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) +{ + g_autofree char *temp_file = g_strdup_printf("%s/vmst.test.XXXXXX", + g_get_tmp_dir()); + temp_fd = mkstemp(temp_file); + + module_call_init(MODULE_INIT_QOM); + + g_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); + g_test_add_func("/vmstate/field_exists/load/skip", test_load_skip); + g_test_add_func("/vmstate/field_exists/save/noskip", test_save_noskip); + g_test_add_func("/vmstate/field_exists/save/skip", test_save_skip); + g_test_add_func("/vmstate/array/ptr/str/no0/save", + 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/gtree/save/savedomain", test_gtree_save_domain); + g_test_add_func("/vmstate/gtree/load/loaddomain", test_gtree_load_domain); + g_test_add_func("/vmstate/gtree/save/saveiommu", test_gtree_save_iommu); + g_test_add_func("/vmstate/gtree/load/loadiommu", test_gtree_load_iommu); + g_test_add_func("/vmstate/qlist/save/saveqlist", test_save_qlist); + g_test_add_func("/vmstate/qlist/load/loadqlist", test_load_qlist); + g_test_add_func("/vmstate/tmp_struct", test_tmp_struct); + g_test_run(); + + close(temp_fd); + unlink(temp_file); + + return 0; +} |