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-rw-r--r--target-arm/cpu-qom.h12
-rw-r--r--target-arm/cpu.c82
-rw-r--r--target-arm/helper.c75
3 files changed, 100 insertions, 69 deletions
diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h
index b2917ea935..9e33b6a2e3 100644
--- a/target-arm/cpu-qom.h
+++ b/target-arm/cpu-qom.h
@@ -21,6 +21,7 @@
#define QEMU_ARM_CPU_QOM_H
#include "qemu/cpu.h"
+#include "cpu.h"
#define TYPE_ARM_CPU "arm-cpu"
@@ -51,6 +52,7 @@ typedef struct ARMCPUClass {
/**
* ARMCPU:
+ * @env: Legacy CPU state.
*
* An ARM CPU core.
*/
@@ -58,7 +60,17 @@ typedef struct ARMCPU {
/*< private >*/
CPUState parent_obj;
/*< public >*/
+
+ /* TODO Inline this and split off common state */
+ CPUARMState env;
} ARMCPU;
+static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
+{
+ return ARM_CPU(container_of(env, ARMCPU, env));
+}
+
+#define ENV_GET_CPU(e) CPU(arm_env_get_cpu(e))
+
#endif
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index dabc094835..00b7ecc836 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -20,12 +20,81 @@
#include "cpu-qom.h"
#include "qemu-common.h"
+#if !defined(CONFIG_USER_ONLY)
+#include "hw/loader.h"
+#endif
static void arm_cpu_reset(CPUState *c)
{
ARMCPUClass *klass = ARM_CPU_GET_CLASS(c);
+ ARMCPU *cpu = ARM_CPU(c);
+ CPUARMState *env = &cpu->env;
+ uint32_t id;
+ uint32_t tmp;
+
+ if (qemu_loglevel_mask(CPU_LOG_RESET)) {
+ qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
+ log_cpu_state(env, 0);
+ }
klass->parent_reset(c);
+
+ id = env->cp15.c0_cpuid;
+ tmp = env->cp15.c15_config_base_address;
+ memset(env, 0, offsetof(CPUARMState, breakpoints));
+ env->cp15.c0_cpuid = id;
+ env->cp15.c15_config_base_address = tmp;
+
+#if defined(CONFIG_USER_ONLY)
+ env->uncached_cpsr = ARM_CPU_MODE_USR;
+ /* For user mode we must enable access to coprocessors */
+ env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30;
+ if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
+ env->cp15.c15_cpar = 3;
+ } else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
+ env->cp15.c15_cpar = 1;
+ }
+#else
+ /* SVC mode with interrupts disabled. */
+ env->uncached_cpsr = ARM_CPU_MODE_SVC | CPSR_A | CPSR_F | CPSR_I;
+ /* On ARMv7-M the CPSR_I is the value of the PRIMASK register, and is
+ clear at reset. Initial SP and PC are loaded from ROM. */
+ if (IS_M(env)) {
+ uint32_t pc;
+ uint8_t *rom;
+ env->uncached_cpsr &= ~CPSR_I;
+ rom = rom_ptr(0);
+ if (rom) {
+ /* We should really use ldl_phys here, in case the guest
+ modified flash and reset itself. However images
+ loaded via -kernel have not been copied yet, so load the
+ values directly from there. */
+ env->regs[13] = ldl_p(rom);
+ pc = ldl_p(rom + 4);
+ env->thumb = pc & 1;
+ env->regs[15] = pc & ~1;
+ }
+ }
+ env->vfp.xregs[ARM_VFP_FPEXC] = 0;
+ env->cp15.c2_base_mask = 0xffffc000u;
+ /* v7 performance monitor control register: same implementor
+ * field as main ID register, and we implement no event counters.
+ */
+ env->cp15.c9_pmcr = (id & 0xff000000);
+#endif
+ set_flush_to_zero(1, &env->vfp.standard_fp_status);
+ set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status);
+ set_default_nan_mode(1, &env->vfp.standard_fp_status);
+ set_float_detect_tininess(float_tininess_before_rounding,
+ &env->vfp.fp_status);
+ set_float_detect_tininess(float_tininess_before_rounding,
+ &env->vfp.standard_fp_status);
+ tlb_flush(env, 1);
+ /* Reset is a state change for some CPUState fields which we
+ * bake assumptions about into translated code, so we need to
+ * tb_flush().
+ */
+ tb_flush(env);
}
/* CPU models */
@@ -146,6 +215,18 @@ static const ARMCPUInfo arm_cpus[] = {
},
};
+static void arm_cpu_initfn(Object *obj)
+{
+ ARMCPU *cpu = ARM_CPU(obj);
+ ARMCPUClass *cpu_class = ARM_CPU_GET_CLASS(obj);
+
+ memset(&cpu->env, 0, sizeof(CPUARMState));
+ cpu_exec_init(&cpu->env);
+
+ cpu->env.cpu_model_str = object_get_typename(obj);
+ cpu->env.cp15.c0_cpuid = cpu_class->cp15.c0_cpuid;
+}
+
static void arm_cpu_class_init(ObjectClass *klass, void *data)
{
ARMCPUClass *k = ARM_CPU_CLASS(klass);
@@ -164,6 +245,7 @@ static void cpu_register(const ARMCPUInfo *info)
.name = info->name,
.parent = TYPE_ARM_CPU,
.instance_size = sizeof(ARMCPU),
+ .instance_init = arm_cpu_initfn,
.class_size = sizeof(ARMCPUClass),
.class_init = arm_cpu_class_init,
.class_data = (void *)info,
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 00e018cc46..c3b84978b8 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -2,9 +2,6 @@
#include "gdbstub.h"
#include "helper.h"
#include "host-utils.h"
-#if !defined(CONFIG_USER_ONLY)
-#include "hw/loader.h"
-#endif
#include "sysemu.h"
#include "cpu-qom.h"
@@ -54,7 +51,6 @@ static inline void set_feature(CPUARMState *env, int feature)
static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
{
- env->cp15.c0_cpuid = id;
switch (id) {
case ARM_CPUID_ARM926:
set_feature(env, ARM_FEATURE_V5);
@@ -280,69 +276,12 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
void cpu_state_reset(CPUARMState *env)
{
uint32_t id;
- uint32_t tmp = 0;
- if (qemu_loglevel_mask(CPU_LOG_RESET)) {
- qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
- log_cpu_state(env, 0);
- }
+ cpu_reset(ENV_GET_CPU(env));
id = env->cp15.c0_cpuid;
- tmp = env->cp15.c15_config_base_address;
- memset(env, 0, offsetof(CPUARMState, breakpoints));
if (id)
cpu_reset_model_id(env, id);
- env->cp15.c15_config_base_address = tmp;
-#if defined (CONFIG_USER_ONLY)
- env->uncached_cpsr = ARM_CPU_MODE_USR;
- /* For user mode we must enable access to coprocessors */
- env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30;
- if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
- env->cp15.c15_cpar = 3;
- } else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
- env->cp15.c15_cpar = 1;
- }
-#else
- /* SVC mode with interrupts disabled. */
- env->uncached_cpsr = ARM_CPU_MODE_SVC | CPSR_A | CPSR_F | CPSR_I;
- /* On ARMv7-M the CPSR_I is the value of the PRIMASK register, and is
- clear at reset. Initial SP and PC are loaded from ROM. */
- if (IS_M(env)) {
- uint32_t pc;
- uint8_t *rom;
- env->uncached_cpsr &= ~CPSR_I;
- rom = rom_ptr(0);
- if (rom) {
- /* We should really use ldl_phys here, in case the guest
- modified flash and reset itself. However images
- loaded via -kernel have not been copied yet, so load the
- values directly from there. */
- env->regs[13] = ldl_p(rom);
- pc = ldl_p(rom + 4);
- env->thumb = pc & 1;
- env->regs[15] = pc & ~1;
- }
- }
- env->vfp.xregs[ARM_VFP_FPEXC] = 0;
- env->cp15.c2_base_mask = 0xffffc000u;
- /* v7 performance monitor control register: same implementor
- * field as main ID register, and we implement no event counters.
- */
- env->cp15.c9_pmcr = (id & 0xff000000);
-#endif
- set_flush_to_zero(1, &env->vfp.standard_fp_status);
- set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status);
- set_default_nan_mode(1, &env->vfp.standard_fp_status);
- set_float_detect_tininess(float_tininess_before_rounding,
- &env->vfp.fp_status);
- set_float_detect_tininess(float_tininess_before_rounding,
- &env->vfp.standard_fp_status);
- tlb_flush(env, 1);
- /* Reset is a state change for some CPUARMState fields which we
- * bake assumptions about into translated code, so we need to
- * tb_flush().
- */
- tb_flush(env);
}
static int vfp_gdb_get_reg(CPUARMState *env, uint8_t *buf, int reg)
@@ -400,7 +339,7 @@ static int vfp_gdb_set_reg(CPUARMState *env, uint8_t *buf, int reg)
CPUARMState *cpu_arm_init(const char *cpu_model)
{
ObjectClass *klass;
- ARMCPUClass *cpu_class;
+ ARMCPU *cpu;
CPUARMState *env;
static int inited = 0;
@@ -413,16 +352,14 @@ CPUARMState *cpu_arm_init(const char *cpu_model)
if (klass == NULL) {
return NULL;
}
- cpu_class = ARM_CPU_CLASS(klass);
- env = g_malloc0(sizeof(CPUARMState));
- cpu_exec_init(env);
+ cpu = ARM_CPU(object_new(cpu_model));
+ env = &cpu->env;
+
if (tcg_enabled() && !inited) {
inited = 1;
arm_translate_init();
}
- env->cpu_model_str = cpu_model;
- env->cp15.c0_cpuid = cpu_class->cp15.c0_cpuid;
cpu_state_reset(env);
if (arm_feature(env, ARM_FEATURE_NEON)) {
gdb_register_coprocessor(env, vfp_gdb_get_reg, vfp_gdb_set_reg,
@@ -487,7 +424,7 @@ void arm_cpu_list(FILE *f, fprintf_function cpu_fprintf)
void cpu_arm_close(CPUARMState *env)
{
- g_free(env);
+ object_delete(OBJECT(ENV_GET_CPU(env)));
}
static int bad_mode_switch(CPUARMState *env, int mode)
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 23:42:00 +0000