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/*
* 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(NULL);
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);
g_free(pcidev);
qpci_free_pc(pcibus);
}
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;
}
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