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