cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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ds1338-test.c (1857B)

      1/*
      2 * QTest testcase for the DS1338 RTC
      3 *
      4 * Copyright (c) 2013 Jean-Christophe Dubois
      5 *
      6 *  This program is free software; you can redistribute it and/or modify it
      7 *  under the terms of the GNU General Public License as published by the
      8 *  Free Software Foundation; either version 2 of the License, or
      9 *  (at your option) any later version.
     10 *
     11 *  This program is distributed in the hope that it will be useful, but WITHOUT
     12 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     13 *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
     14 *  for more details.
     15 *
     16 *  You should have received a copy of the GNU General Public License along
     17 *  with this program; if not, see <http://www.gnu.org/licenses/>.
     18 */
     19
     20#include "qemu/osdep.h"
     21#include "libqos/libqtest.h"
     22#include "libqos/i2c.h"
     23
     24#define DS1338_ADDR 0x68
     25
     26static inline uint8_t bcd2bin(uint8_t x)
     27{
     28    return ((x) & 0x0f) + ((x) >> 4) * 10;
     29}
     30
     31static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
     32{
     33    QI2CDevice *i2cdev = (QI2CDevice *)obj;
     34
     35    uint8_t resp[7];
     36    time_t now = time(NULL);
     37    struct tm *tm_ptr = gmtime(&now);
     38
     39    i2c_read_block(i2cdev, 0, resp, sizeof(resp));
     40
     41    /* check retrieved time againt local time */
     42    g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday);
     43    g_assert_cmpuint(bcd2bin(resp[5]), == , 1 + tm_ptr->tm_mon);
     44    g_assert_cmpuint(2000 + bcd2bin(resp[6]), == , 1900 + tm_ptr->tm_year);
     45}
     46
     47static void ds1338_register_nodes(void)
     48{
     49    QOSGraphEdgeOptions opts = {
     50        .extra_device_opts = "address=0x68"
     51    };
     52    add_qi2c_address(&opts, &(QI2CAddress) { DS1338_ADDR });
     53
     54    qos_node_create_driver("ds1338", i2c_device_create);
     55    qos_node_consumes("ds1338", "i2c-bus", &opts);
     56    qos_add_test("tx-rx", "ds1338", send_and_receive, NULL);
     57}
     58libqos_init(ds1338_register_nodes);