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11#include <glib.h>
12#include <string.h>
13#include <unistd.h>
14#include "qemu/osdep.h"
15#include "qemu/bitmap.h"
16#include "qemu/uuid.h"
17#include "hw/acpi/acpi-defs.h"
18#include "boot-sector.h"
19#include "acpi-utils.h"
20#include "libqtest.h"
21
22#define VGID_GUID "324e6eaf-d1d1-4bf6-bf41-b9bb6c91fb87"
23#define VMGENID_GUID_OFFSET 40
24
25
26#define RSDP_ADDR_INVALID 0x100000
27
28typedef struct {
29 AcpiTableHeader header;
30 gchar name_op;
31 gchar vgia[4];
32 gchar val_op;
33 uint32_t vgia_val;
34} QEMU_PACKED VgidTable;
35
36static uint32_t acpi_find_vgia(void)
37{
38 uint32_t rsdp_offset;
39 uint32_t guid_offset = 0;
40 AcpiRsdpDescriptor rsdp_table;
41 uint32_t rsdt, rsdt_table_length;
42 AcpiRsdtDescriptorRev1 rsdt_table;
43 size_t tables_nr;
44 uint32_t *tables;
45 AcpiTableHeader ssdt_table;
46 VgidTable vgid_table;
47 int i;
48
49
50 boot_sector_test();
51
52
53 rsdp_offset = acpi_find_rsdp_address();
54
55 g_assert_cmphex(rsdp_offset, <, RSDP_ADDR_INVALID);
56
57 acpi_parse_rsdp_table(rsdp_offset, &rsdp_table);
58
59 rsdt = le32_to_cpu(rsdp_table.rsdt_physical_address);
60
61 ACPI_READ_TABLE_HEADER(&rsdt_table, rsdt);
62 ACPI_ASSERT_CMP(rsdt_table.signature, "RSDT");
63 rsdt_table_length = le32_to_cpu(rsdt_table.length);
64
65
66 g_assert_cmpint(rsdt_table_length, >, sizeof(AcpiRsdtDescriptorRev1));
67 tables_nr = (rsdt_table_length - sizeof(AcpiRsdtDescriptorRev1)) /
68 sizeof(uint32_t);
69
70
71 tables = g_new0(uint32_t, tables_nr);
72 ACPI_READ_ARRAY_PTR(tables, tables_nr, rsdt);
73
74 for (i = 0; i < tables_nr; i++) {
75 uint32_t addr = le32_to_cpu(tables[i]);
76 ACPI_READ_TABLE_HEADER(&ssdt_table, addr);
77 if (!strncmp((char *)ssdt_table.oem_table_id, "VMGENID", 7)) {
78
79
80
81 ACPI_READ_FIELD(vgid_table.name_op, addr);
82 g_assert(vgid_table.name_op == 0x08);
83 ACPI_READ_ARRAY(vgid_table.vgia, addr);
84 g_assert(memcmp(vgid_table.vgia, "VGIA", 4) == 0);
85 ACPI_READ_FIELD(vgid_table.val_op, addr);
86 g_assert(vgid_table.val_op == 0x0C);
87 ACPI_READ_FIELD(vgid_table.vgia_val, addr);
88
89
90
91
92 guid_offset = le32_to_cpu(vgid_table.vgia_val) + VMGENID_GUID_OFFSET;
93 break;
94 }
95 }
96 g_free(tables);
97 return guid_offset;
98}
99
100static void read_guid_from_memory(QemuUUID *guid)
101{
102 uint32_t vmgenid_addr;
103 int i;
104
105 vmgenid_addr = acpi_find_vgia();
106 g_assert(vmgenid_addr);
107
108
109 for (i = 0; i < 16; i++) {
110 guid->data[i] = readb(vmgenid_addr + i);
111 }
112
113
114
115 qemu_uuid_bswap(guid);
116}
117
118static void read_guid_from_monitor(QemuUUID *guid)
119{
120 QDict *rsp, *rsp_ret;
121 const char *guid_str;
122
123 rsp = qmp("{ 'execute': 'query-vm-generation-id' }");
124 if (qdict_haskey(rsp, "return")) {
125 rsp_ret = qdict_get_qdict(rsp, "return");
126 g_assert(qdict_haskey(rsp_ret, "guid"));
127 guid_str = qdict_get_str(rsp_ret, "guid");
128 g_assert(qemu_uuid_parse(guid_str, guid) == 0);
129 }
130 QDECREF(rsp);
131}
132
133static char disk[] = "tests/vmgenid-test-disk-XXXXXX";
134
135#define GUID_CMD(guid) \
136 "-machine accel=kvm:tcg " \
137 "-device vmgenid,id=testvgid,guid=%s " \
138 "-drive id=hd0,if=none,file=%s,format=raw " \
139 "-device ide-hd,drive=hd0 ", guid, disk
140
141static void vmgenid_set_guid_test(void)
142{
143 QemuUUID expected, measured;
144
145 g_assert(qemu_uuid_parse(VGID_GUID, &expected) == 0);
146
147 global_qtest = qtest_startf(GUID_CMD(VGID_GUID));
148
149
150 read_guid_from_memory(&measured);
151 g_assert(memcmp(measured.data, expected.data, sizeof(measured.data)) == 0);
152
153 qtest_quit(global_qtest);
154}
155
156static void vmgenid_set_guid_auto_test(void)
157{
158 QemuUUID measured;
159
160 global_qtest = qtest_startf(GUID_CMD("auto"));
161
162 read_guid_from_memory(&measured);
163
164
165 g_assert(!qemu_uuid_is_null(&measured));
166
167 qtest_quit(global_qtest);
168}
169
170static void vmgenid_query_monitor_test(void)
171{
172 QemuUUID expected, measured;
173
174 g_assert(qemu_uuid_parse(VGID_GUID, &expected) == 0);
175
176 global_qtest = qtest_startf(GUID_CMD(VGID_GUID));
177
178
179 read_guid_from_monitor(&measured);
180 g_assert(memcmp(measured.data, expected.data, sizeof(measured.data)) == 0);
181
182 qtest_quit(global_qtest);
183}
184
185int main(int argc, char **argv)
186{
187 int ret;
188
189 ret = boot_sector_init(disk);
190 if (ret) {
191 return ret;
192 }
193
194 g_test_init(&argc, &argv, NULL);
195
196 qtest_add_func("/vmgenid/vmgenid/set-guid",
197 vmgenid_set_guid_test);
198 qtest_add_func("/vmgenid/vmgenid/set-guid-auto",
199 vmgenid_set_guid_auto_test);
200 qtest_add_func("/vmgenid/vmgenid/query-monitor",
201 vmgenid_query_monitor_test);
202 ret = g_test_run();
203 boot_sector_cleanup(disk);
204
205 return ret;
206}
207