*/
#include "cpu.h"
#include "sysemu/sysemu.h"
-#include "char/char.h"
+#include "sysemu/char.h"
#include "hw/qdev.h"
#include "sysemu/device_tree.h"
#define TOKEN_BASE 0x2000
#define TOKEN_MAX 0x100
-static void rtas_display_character(sPAPREnvironment *spapr,
+static void rtas_display_character(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
VIOsPAPRDevice *sdev = vty_lookup(spapr, 0);
if (!sdev) {
- rtas_st(rets, 0, -1);
+ rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
} else {
vty_putchars(sdev, &c, sizeof(c));
- rtas_st(rets, 0, 0);
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
}
-static void rtas_get_time_of_day(sPAPREnvironment *spapr,
+static void rtas_get_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
struct tm tm;
if (nret != 8) {
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
qemu_get_timedate(&tm, spapr->rtc_offset);
- rtas_st(rets, 0, 0); /* Success */
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
rtas_st(rets, 1, tm.tm_year + 1900);
rtas_st(rets, 2, tm.tm_mon + 1);
rtas_st(rets, 3, tm.tm_mday);
rtas_st(rets, 7, 0); /* we don't do nanoseconds */
}
-static void rtas_set_time_of_day(sPAPREnvironment *spapr,
+static void rtas_set_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
rtc_change_mon_event(&tm);
spapr->rtc_offset = qemu_timedate_diff(&tm);
- rtas_st(rets, 0, 0); /* Success */
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
-static void rtas_power_off(sPAPREnvironment *spapr,
+static void rtas_power_off(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs, target_ulong args,
uint32_t nret, target_ulong rets)
{
if (nargs != 2 || nret != 1) {
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
qemu_system_shutdown_request();
- rtas_st(rets, 0, 0);
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
-static void rtas_system_reboot(sPAPREnvironment *spapr,
+static void rtas_system_reboot(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
if (nargs != 0 || nret != 1) {
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
qemu_system_reset_request();
- rtas_st(rets, 0, 0);
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
-static void rtas_query_cpu_stopped_state(sPAPREnvironment *spapr,
+static void rtas_query_cpu_stopped_state(PowerPCCPU *cpu_,
+ sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
target_ulong id;
- CPUPPCState *env;
- CPUState *cpu;
+ PowerPCCPU *cpu;
if (nargs != 1 || nret != 2) {
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
id = rtas_ld(args, 0);
- for (env = first_cpu; env; env = env->next_cpu) {
- cpu = CPU(ppc_env_get_cpu(env));
- if (cpu->cpu_index != id) {
- continue;
- }
-
- if (cpu->halted) {
+ cpu = ppc_get_vcpu_by_dt_id(id);
+ if (cpu != NULL) {
+ if (CPU(cpu)->halted) {
rtas_st(rets, 1, 0);
} else {
rtas_st(rets, 1, 2);
}
- rtas_st(rets, 0, 0);
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
return;
}
/* Didn't find a matching cpu */
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
}
-static void rtas_start_cpu(sPAPREnvironment *spapr,
+static void rtas_start_cpu(PowerPCCPU *cpu_, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
target_ulong id, start, r3;
- CPUState *cpu;
- CPUPPCState *env;
+ PowerPCCPU *cpu;
if (nargs != 3 || nret != 1) {
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
start = rtas_ld(args, 1);
r3 = rtas_ld(args, 2);
- for (env = first_cpu; env; env = env->next_cpu) {
- cpu = CPU(ppc_env_get_cpu(env));
+ cpu = ppc_get_vcpu_by_dt_id(id);
+ if (cpu != NULL) {
+ CPUState *cs = CPU(cpu);
+ CPUPPCState *env = &cpu->env;
- if (cpu->cpu_index != id) {
- continue;
- }
-
- if (!cpu->halted) {
- rtas_st(rets, 0, -1);
+ if (!cs->halted) {
+ rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
return;
}
/* This will make sure qemu state is up to date with kvm, and
* mark it dirty so our changes get flushed back before the
* new cpu enters */
- kvm_cpu_synchronize_state(env);
+ kvm_cpu_synchronize_state(cs);
env->msr = (1ULL << MSR_SF) | (1ULL << MSR_ME);
env->nip = start;
env->gpr[3] = r3;
- cpu->halted = 0;
+ cs->halted = 0;
- qemu_cpu_kick(cpu);
+ qemu_cpu_kick(cs);
- rtas_st(rets, 0, 0);
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
return;
}
/* Didn't find a matching cpu */
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+}
+
+static void rtas_stop_self(PowerPCCPU *cpu, sPAPREnvironment *spapr,
+ uint32_t token, uint32_t nargs,
+ target_ulong args,
+ uint32_t nret, target_ulong rets)
+{
+ CPUState *cs = CPU(cpu);
+ CPUPPCState *env = &cpu->env;
+
+ cs->halted = 1;
+ cpu_exit(cs);
+ /*
+ * While stopping a CPU, the guest calls H_CPPR which
+ * effectively disables interrupts on XICS level.
+ * However decrementer interrupts in TCG can still
+ * wake the CPU up so here we disable interrupts in MSR
+ * as well.
+ * As rtas_start_cpu() resets the whole MSR anyway, there is
+ * no need to bother with specific bits, we just clear it.
+ */
+ env->msr = 0;
+}
+
+#define DIAGNOSTICS_RUN_MODE 42
+
+static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
+ sPAPREnvironment *spapr,
+ uint32_t token, uint32_t nargs,
+ target_ulong args,
+ uint32_t nret, target_ulong rets)
+{
+ target_ulong parameter = rtas_ld(args, 0);
+ target_ulong buffer = rtas_ld(args, 1);
+ target_ulong length = rtas_ld(args, 2);
+ target_ulong ret = RTAS_OUT_NOT_SUPPORTED;
+
+ switch (parameter) {
+ case DIAGNOSTICS_RUN_MODE:
+ if (length == 1) {
+ rtas_st(buffer, 0, 0);
+ ret = RTAS_OUT_SUCCESS;
+ }
+ break;
+ }
+
+ rtas_st(rets, 0, ret);
+}
+
+static void rtas_ibm_set_system_parameter(PowerPCCPU *cpu,
+ sPAPREnvironment *spapr,
+ uint32_t token, uint32_t nargs,
+ target_ulong args,
+ uint32_t nret, target_ulong rets)
+{
+ target_ulong parameter = rtas_ld(args, 0);
+ target_ulong ret = RTAS_OUT_NOT_SUPPORTED;
+
+ switch (parameter) {
+ case DIAGNOSTICS_RUN_MODE:
+ ret = RTAS_OUT_NOT_AUTHORIZED;
+ break;
+ }
+
+ rtas_st(rets, 0, ret);
}
static struct rtas_call {
struct rtas_call *rtas_next = rtas_table;
-target_ulong spapr_rtas_call(sPAPREnvironment *spapr,
+target_ulong spapr_rtas_call(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs, target_ulong args,
uint32_t nret, target_ulong rets)
{
struct rtas_call *call = rtas_table + (token - TOKEN_BASE);
if (call->fn) {
- call->fn(spapr, token, nargs, args, nret, rets);
+ call->fn(cpu, spapr, token, nargs, args, nret, rets);
return H_SUCCESS;
}
}
* machines) without looking it up in the device tree. This
* special case makes this work */
if (token == 0xa) {
- rtas_display_character(spapr, 0xa, nargs, args, nret, rets);
+ rtas_display_character(cpu, spapr, 0xa, nargs, args, nret, rets);
return H_SUCCESS;
}
hcall_dprintf("Unknown RTAS token 0x%x\n", token);
- rtas_st(rets, 0, -3);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return H_PARAMETER;
}
return ret;
}
- ret = qemu_devtree_setprop_cell(fdt, "/rtas", "linux,rtas-base",
- rtas_addr);
+ ret = qemu_fdt_setprop_cell(fdt, "/rtas", "linux,rtas-base",
+ rtas_addr);
if (ret < 0) {
fprintf(stderr, "Couldn't add linux,rtas-base property: %s\n",
fdt_strerror(ret));
return ret;
}
- ret = qemu_devtree_setprop_cell(fdt, "/rtas", "linux,rtas-entry",
- rtas_addr);
+ ret = qemu_fdt_setprop_cell(fdt, "/rtas", "linux,rtas-entry",
+ rtas_addr);
if (ret < 0) {
fprintf(stderr, "Couldn't add linux,rtas-entry property: %s\n",
fdt_strerror(ret));
return ret;
}
- ret = qemu_devtree_setprop_cell(fdt, "/rtas", "rtas-size",
- rtas_size);
+ ret = qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-size",
+ rtas_size);
if (ret < 0) {
fprintf(stderr, "Couldn't add rtas-size property: %s\n",
fdt_strerror(ret));
continue;
}
- ret = qemu_devtree_setprop_cell(fdt, "/rtas", call->name,
- i + TOKEN_BASE);
+ ret = qemu_fdt_setprop_cell(fdt, "/rtas", call->name,
+ i + TOKEN_BASE);
if (ret < 0) {
fprintf(stderr, "Couldn't add rtas token for %s: %s\n",
call->name, fdt_strerror(ret));
spapr_rtas_register("query-cpu-stopped-state",
rtas_query_cpu_stopped_state);
spapr_rtas_register("start-cpu", rtas_start_cpu);
+ spapr_rtas_register("stop-self", rtas_stop_self);
+ spapr_rtas_register("ibm,get-system-parameter",
+ rtas_ibm_get_system_parameter);
+ spapr_rtas_register("ibm,set-system-parameter",
+ rtas_ibm_set_system_parameter);
}
type_init(core_rtas_register_types)
projects / qemu.git / blobdiff