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/*
* 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/rtas.h"
static void qrtas_copy_args(uint64_t target_args, uint32_t nargs,
uint32_t *args)
{
int i;
for (i = 0; i < nargs; i++) {
writel(target_args + i * sizeof(uint32_t), args[i]);
}
}
static void qrtas_copy_ret(uint64_t target_ret, uint32_t nret, uint32_t *ret)
{
int i;
for (i = 0; i < nret; i++) {
ret[i] = readl(target_ret + i * sizeof(uint32_t));
}
}
static uint64_t qrtas_call(QGuestAllocator *alloc, const char *name,
uint32_t nargs, uint32_t *args,
uint32_t nret, uint32_t *ret)
{
uint64_t res;
uint64_t target_args, target_ret;
target_args = guest_alloc(alloc, nargs * sizeof(uint32_t));
target_ret = guest_alloc(alloc, nret * sizeof(uint32_t));
qrtas_copy_args(target_args, nargs, args);
res = qtest_rtas_call(global_qtest, name,
nargs, target_args, nret, target_ret);
qrtas_copy_ret(target_ret, nret, ret);
guest_free(alloc, target_ret);
guest_free(alloc, target_args);
return res;
}
int qrtas_get_time_of_day(QGuestAllocator *alloc, struct tm *tm, uint32_t *ns)
{
int res;
uint32_t ret[8];
res = qrtas_call(alloc, "get-time-of-day", 0, NULL, 8, ret);
if (res != 0) {
return res;
}
res = ret[0];
memset(tm, 0, sizeof(*tm));
tm->tm_year = ret[1] - 1900;
tm->tm_mon = ret[2] - 1;
tm->tm_mday = ret[3];
tm->tm_hour = ret[4];
tm->tm_min = ret[5];
tm->tm_sec = ret[6];
*ns = ret[7];
return res;
}
uint32_t qrtas_ibm_read_pci_config(QGuestAllocator *alloc, uint64_t buid,
uint32_t addr, uint32_t size)
{
int res;
uint32_t args[4], ret[2];
args[0] = addr;
args[1] = buid >> 32;
args[2] = buid & 0xffffffff;
args[3] = size;
res = qrtas_call(alloc, "ibm,read-pci-config", 4, args, 2, ret);
if (res != 0) {
return -1;
}
if (ret[0] != 0) {
return -1;
}
return ret[1];
}
int qrtas_ibm_write_pci_config(QGuestAllocator *alloc, uint64_t buid,
uint32_t addr, uint32_t size, uint32_t val)
{
int res;
uint32_t args[5], ret[1];
args[0] = addr;
args[1] = buid >> 32;
args[2] = buid & 0xffffffff;
args[3] = size;
args[4] = val;
res = qrtas_call(alloc, "ibm,write-pci-config", 5, args, 1, ret);
if (res != 0) {
return -1;
}
if (ret[0] != 0) {
return -1;
}
return 0;
}
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