static void ofd_bootargs(void)
{
static const char *sepr[] = {" -- ", " || "};
char *p;
ofdn_t chosen;
int sepr_index;
int rc;
if (builtin_cmdline[0] == '\0') {
chosen = ofd_node_find((void *)oftree, "/chosen");
rc = ofd_getprop((void *)oftree, chosen, "bootargs", builtin_cmdline,
CONFIG_CMDLINE_SIZE);
}
/* look for delimiter: "--" or "||" */
for (sepr_index = 0; sepr_index < ARRAY_SIZE(sepr); sepr_index++){
p = strstr(builtin_cmdline, sepr[sepr_index]);
if (p != NULL) {
/* Xen proper should never know about the dom0 args. */
*p = '\0';
p += strlen(sepr[sepr_index]);
dom0_cmdline = p;
break;
}
}
xen_cmdline = builtin_cmdline;
}
sval
ofh_getprop(uval nargs, uval nrets, sval argp[], sval retp[], uval b)
{
if (nargs == 4) {
if (nrets == 1) {
ofdn_t ph = argp[0];
const char *name = (const char *)argp[1];
void *buf = (void *)argp[2];
uval buflen = argp[3];
sval *size = &retp[0];
void *mem = ofd_mem(b);
*size = ofd_getprop(mem, ph, name, buf, buflen);
if (*size > 0) {
return OF_SUCCESS;
}
}
}
return OF_FAILURE;
}
void
ofd_openpic_probe(void *m, uval little_endian)
{
static const char name[] = "platform-open-pic";
uval64 addr = ~0ULL;
ofd_getprop(m, OFD_ROOT, name, &addr, sizeof(addr));
if (addr == ~0ULL) return;
sval rc;
uval rets[5];
rc = hcall_mem_define(rets, MMIO_ADDR, (uval)addr, 0x40000);
hprintf("OpenPIC at: %lx %llx %lx\n", rc, addr, rets[0]);
assert(rc == H_Success, "hcall failure: %lx\n", rc);
if (rc == H_Success) {
ofd_setprop(m, OFD_ROOT, name, rets, sizeof(rets));
}
rc = hcall_eic_config(rets, CONFIG, (uval)addr, little_endian, 0, 0);
assert(rc == H_Success, "hcall failure: %lx\n", rc);
}
static void
ofd_openpic_owner_props(void *m, uval lpid)
{
static const char name[] = "platform-open-pic";
uval64 addr = ~0ULL;
ofd_getprop(m, OFD_ROOT, name, &addr, sizeof(addr));
if (addr == ~0ULL) return;
sval rc = H_Success;
uval rets[5];
if (lpid != H_SELF_LPID) {
rc = hcall_resource_transfer(rets, MMIO_ADDR,
0, (uval)addr, 0x40000, lpid);
assert(rc == H_Success, "hcall failure: %lx\n", rc);
if (rc == H_Success) {
ofd_setprop(m, OFD_ROOT, name, rets, sizeof(rets));
}
}
rc = hcall_eic_config(rets, CTL_LPAR, lpid, 0, 0, 0);
assert(rc == H_Success, "hcall failure: %lx\n", rc);
}