LXR qemu/tests/libqos/rtas.c

   1/*
   2 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   3 * See the COPYING file in the top-level directory.
   4 */
   5
   6#include "qemu/osdep.h"
   7#include "libqtest.h"
   8#include "libqos/rtas.h"
   9
  10static void qrtas_copy_args(QTestState *qts, uint64_t target_args,
  11                            uint32_t nargs, uint32_t *args)
  12{
  13    int i;
  14
  15    for (i = 0; i < nargs; i++) {
  16        qtest_writel(qts, target_args + i * sizeof(uint32_t), args[i]);
  17    }
  18}
  19
  20static void qrtas_copy_ret(QTestState *qts, uint64_t target_ret,
  21                           uint32_t nret, uint32_t *ret)
  22{
  23    int i;
  24
  25    for (i = 0; i < nret; i++) {
  26        ret[i] = qtest_readl(qts, target_ret + i * sizeof(uint32_t));
  27    }
  28}
  29
  30static uint64_t qrtas_call(QTestState *qts, QGuestAllocator *alloc,
  31                           const char *name,
  32                           uint32_t nargs, uint32_t *args,
  33                           uint32_t nret, uint32_t *ret)
  34{
  35    uint64_t res;
  36    uint64_t target_args, target_ret;
  37
  38    target_args = guest_alloc(alloc, nargs * sizeof(uint32_t));
  39    target_ret = guest_alloc(alloc, nret * sizeof(uint32_t));
  40
  41    qrtas_copy_args(qts, target_args, nargs, args);
  42    res = qtest_rtas_call(qts, name, nargs, target_args, nret, target_ret);
  43    qrtas_copy_ret(qts, target_ret, nret, ret);
  44
  45    guest_free(alloc, target_ret);
  46    guest_free(alloc, target_args);
  47
  48    return res;
  49}
  50
  51int qrtas_get_time_of_day(QTestState *qts, QGuestAllocator *alloc,
  52                          struct tm *tm, uint32_t *ns)
  53{
  54    int res;
  55    uint32_t ret[8];
  56
  57    res = qrtas_call(qts, alloc, "get-time-of-day", 0, NULL, 8, ret);
  58    if (res != 0) {
  59        return res;
  60    }
  61
  62    res = ret[0];
  63    memset(tm, 0, sizeof(*tm));
  64    tm->tm_year = ret[1] - 1900;
  65    tm->tm_mon = ret[2] - 1;
  66    tm->tm_mday = ret[3];
  67    tm->tm_hour = ret[4];
  68    tm->tm_min = ret[5];
  69    tm->tm_sec = ret[6];
  70    *ns = ret[7];
  71
  72    return res;
  73}
  74
  75uint32_t qrtas_ibm_read_pci_config(QTestState *qts, QGuestAllocator *alloc,
  76                                   uint64_t buid,
  77                                   uint32_t addr, uint32_t size)
  78{
  79    int res;
  80    uint32_t args[4], ret[2];
  81
  82    args[0] = addr;
  83    args[1] = buid >> 32;
  84    args[2] = buid & 0xffffffff;
  85    args[3] = size;
  86    res = qrtas_call(qts, alloc, "ibm,read-pci-config", 4, args, 2, ret);
  87    if (res != 0) {
  88        return -1;
  89    }
  90
  91    if (ret[0] != 0) {
  92        return -1;
  93    }
  94
  95    return ret[1];
  96}
  97
  98int qrtas_ibm_write_pci_config(QTestState *qts, QGuestAllocator *alloc,
  99                               uint64_t buid,
 100                               uint32_t addr, uint32_t size, uint32_t val)
 101{
 102    int res;
 103    uint32_t args[5], ret[1];
 104
 105    args[0] = addr;
 106    args[1] = buid >> 32;
 107    args[2] = buid & 0xffffffff;
 108    args[3] = size;
 109    args[4] = val;
 110    res = qrtas_call(qts, alloc, "ibm,write-pci-config", 5, args, 1, ret);
 111    if (res != 0) {
 112        return -1;
 113    }
 114
 115    if (ret[0] != 0) {
 116        return -1;
 117    }
 118
 119    return 0;
 120}
 121