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66e2ec24 GH |
1 | /* |
2 | * QTest testcase for Q35 northbridge | |
3 | * | |
4 | * Copyright (c) 2015 Red Hat, Inc. | |
5 | * | |
6 | * Author: Gerd Hoffmann <kraxel@redhat.com> | |
7 | * | |
8 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
9 | * See the COPYING file in the top-level directory. | |
10 | */ | |
11 | ||
12 | #include <glib.h> | |
13 | #include <string.h> | |
14 | #include "libqtest.h" | |
15 | #include "libqos/pci.h" | |
16 | #include "libqos/pci-pc.h" | |
17 | #include "qemu/osdep.h" | |
18 | #include "hw/pci-host/q35.h" | |
19 | ||
20 | static void smram_set_bit(QPCIDevice *pcidev, uint8_t mask, bool enabled) | |
21 | { | |
22 | uint8_t smram; | |
23 | ||
24 | smram = qpci_config_readb(pcidev, MCH_HOST_BRIDGE_SMRAM); | |
25 | if (enabled) { | |
26 | smram |= mask; | |
27 | } else { | |
28 | smram &= ~mask; | |
29 | } | |
30 | qpci_config_writeb(pcidev, MCH_HOST_BRIDGE_SMRAM, smram); | |
31 | } | |
32 | ||
33 | static bool smram_test_bit(QPCIDevice *pcidev, uint8_t mask) | |
34 | { | |
35 | uint8_t smram; | |
36 | ||
37 | smram = qpci_config_readb(pcidev, MCH_HOST_BRIDGE_SMRAM); | |
38 | return smram & mask; | |
39 | } | |
40 | ||
41 | static void test_smram_lock(void) | |
42 | { | |
43 | QPCIBus *pcibus; | |
44 | QPCIDevice *pcidev; | |
45 | QDict *response; | |
46 | ||
47 | pcibus = qpci_init_pc(); | |
48 | g_assert(pcibus != NULL); | |
49 | ||
50 | pcidev = qpci_device_find(pcibus, 0); | |
51 | g_assert(pcidev != NULL); | |
52 | ||
53 | /* check open is settable */ | |
54 | smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, false); | |
55 | g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); | |
56 | smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, true); | |
57 | g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == true); | |
58 | ||
59 | /* lock, check open is cleared & not settable */ | |
60 | smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_LCK, true); | |
61 | g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); | |
62 | smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, true); | |
63 | g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); | |
64 | ||
65 | /* reset */ | |
66 | response = qmp("{'execute': 'system_reset', 'arguments': {} }"); | |
67 | g_assert(response); | |
68 | g_assert(!qdict_haskey(response, "error")); | |
69 | QDECREF(response); | |
70 | ||
71 | /* check open is settable again */ | |
72 | smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, false); | |
73 | g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); | |
74 | smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, true); | |
75 | g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == true); | |
76 | } | |
77 | ||
78 | int main(int argc, char **argv) | |
79 | { | |
80 | int ret; | |
81 | ||
82 | g_test_init(&argc, &argv, NULL); | |
83 | ||
84 | qtest_add_func("/q35/smram/lock", test_smram_lock); | |
85 | ||
86 | qtest_start("-M q35"); | |
87 | ret = g_test_run(); | |
88 | qtest_end(); | |
89 | ||
90 | return ret; | |
91 | } |