tests/q35-test.c

   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 }