/* * QTest testcase for Q35 northbridge * * Copyright (c) 2015 Red Hat, Inc. * * Author: Gerd Hoffmann <kraxel@redhat.com> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ #include "qemu/osdep.h" #include "libqtest.h" #include "libqos/pci.h" #include "libqos/pci-pc.h" #include "hw/pci-host/q35.h" static void smram_set_bit(QPCIDevice *pcidev, uint8_t mask, bool enabled) { uint8_t smram; smram = qpci_config_readb(pcidev, MCH_HOST_BRIDGE_SMRAM); if (enabled) { smram |= mask; } else { smram &= ~mask; } qpci_config_writeb(pcidev, MCH_HOST_BRIDGE_SMRAM, smram); } static bool smram_test_bit(QPCIDevice *pcidev, uint8_t mask) { uint8_t smram; smram = qpci_config_readb(pcidev, MCH_HOST_BRIDGE_SMRAM); return smram & mask; } static void test_smram_lock(void) { QPCIBus *pcibus; QPCIDevice *pcidev; QDict *response; pcibus = qpci_init_pc(); g_assert(pcibus != NULL); pcidev = qpci_device_find(pcibus, 0); g_assert(pcidev != NULL); /* check open is settable */ smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, false); g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, true); g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == true); /* lock, check open is cleared & not settable */ smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_LCK, true); g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, true); g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); /* reset */ response = qmp("{'execute': 'system_reset', 'arguments': {} }"); g_assert(response); g_assert(!qdict_haskey(response, "error")); QDECREF(response); /* check open is settable again */ smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, false); g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == false); smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, true); g_assert(smram_test_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN) == true); } int main(int argc, char **argv) { int ret; g_test_init(&argc, &argv, NULL); qtest_add_func("/q35/smram/lock", test_smram_lock); qtest_start("-M q35"); ret = g_test_run(); qtest_end(); return ret; }