tests/qtest/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 "rtas.h"
   9
  10 static 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
  20 static 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
  30 static 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
  51 int 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
  75 uint32_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
  98 int 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 }