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qemu / qemu / 5d248213180749e674fbccbacc6ee9c38499abb3 / . / tests / test-vmstate.c
blob: 8f184f3556690bdd5ab4a3c2a7dbe87ece6c30f9 [file] [log] [blame]
/*
* 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 char temp_file[] = "/tmp/vmst.test.XXXXXX";
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)
{
uint ua = GPOINTER_TO_UINT(a);
uint 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()
}
};
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()
}
};
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;
char *str = g_strdup_printf("dest");
g_free(str);
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;
int ret;
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);
ret = qemu_file_get_error(fload);
eof = qemu_get_byte(fload);
ret = qemu_file_get_error(fload);
g_assert(!ret);
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);
}
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)
{
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/tmp_struct", test_tmp_struct);
g_test_run();
close(temp_fd);
unlink(temp_file);
return 0;
}