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unicorn/qemu/target/arm/cpu.c
Peter Maydell 4b24f6d87b
target/arm: Make CCR register banked for v8M 
Make the CCR register banked if v8M security extensions are enabled.

This is slightly more complicated than the other "add banking"
patches because there is one bit in the register which is not
banked. We keep the live data in the NS copy of the register,
and adjust it on register reads and writes. (Since we don't
currently implement the behaviour that the bit controls, there
is nowhere else that needs to care.)

This patch includes the enforcement of the bits which are newly
RES1 in ARMv8M.

Backports commit 9d40cd8a68cfc7606f4548cc9e812bab15c6dc28 from qemu
2018-03-04 21:09:34 -05:00

1525 lines
50 KiB
C
Raw Blame History

/*
* QEMU ARM CPU
*
* Copyright (c) 2012 SUSE LINUX Products GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*f
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see
* <http://www.gnu.org/licenses/gpl-2.0.html>
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "cpu.h"
#include "internals.h"
#include "qemu-common.h"
#include "exec/exec-all.h"
#include "qapi/qmp/qerror.h"
#include "hw/arm/arm.h"
#include "sysemu/sysemu.h"
#include "uc_priv.h"
static void arm_cpu_set_pc(CPUState *cs, vaddr value)
{
ARMCPU *cpu = ARM_CPU(NULL, cs);
cpu->env.regs[15] = value;
}
static bool arm_cpu_has_work(CPUState *cs)
{
ARMCPU *cpu = ARM_CPU(NULL, cs);
return !cpu->powered_off
&& cs->interrupt_request &
(CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD
| CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ
| CPU_INTERRUPT_EXITTB);
}
void arm_register_el_change_hook(ARMCPU *cpu, ARMELChangeHook *hook,
void *opaque)
{
/* We currently only support registering a single hook function */
assert(!cpu->el_change_hook);
cpu->el_change_hook = hook;
cpu->el_change_hook_opaque = opaque;
}
static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque)
{
/* Reset a single ARMCPRegInfo register */
ARMCPRegInfo *ri = value;
ARMCPU *cpu = opaque;
if (ri->type & (ARM_CP_SPECIAL | ARM_CP_ALIAS)) {
return;
}
if (ri->resetfn) {
ri->resetfn(&cpu->env, ri);
return;
}
/* A zero offset is never possible as it would be regs[0]
* so we use it to indicate that reset is being handled elsewhere.
* This is basically only used for fields in non-core coprocessors
* (like the pxa2xx ones).
*/
if (!ri->fieldoffset) {
return;
}
if (cpreg_field_is_64bit(ri)) {
CPREG_FIELD64(&cpu->env, ri) = ri->resetvalue;
} else {
CPREG_FIELD32(&cpu->env, ri) = ri->resetvalue;
}
}
static void cp_reg_check_reset(gpointer key, gpointer value, gpointer opaque)
{
/* Purely an assertion check: we've already done reset once,
* so now check that running the reset for the cpreg doesn't
* change its value. This traps bugs where two different cpregs
* both try to reset the same state field but to different values.
*/
ARMCPRegInfo *ri = value;
ARMCPU *cpu = opaque;
uint64_t oldvalue, newvalue;
if (ri->type & (ARM_CP_SPECIAL | ARM_CP_ALIAS | ARM_CP_NO_RAW)) {
return;
}
oldvalue = read_raw_cp_reg(&cpu->env, ri);
cp_reg_reset(key, value, opaque);
newvalue = read_raw_cp_reg(&cpu->env, ri);
assert(oldvalue == newvalue);
}
/* CPUClass::reset() */
static void arm_cpu_reset(CPUState *s)
{
CPUARMState *env = s->env_ptr;
ARMCPU *cpu = ARM_CPU(env->uc, s);
ARMCPUClass *acc = ARM_CPU_GET_CLASS(env->uc, cpu);
acc->parent_reset(s);
memset(env, 0, offsetof(CPUARMState, end_reset_fields));
g_hash_table_foreach(cpu->cp_regs, cp_reg_reset, cpu);
g_hash_table_foreach(cpu->cp_regs, cp_reg_check_reset, cpu);
env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid;
env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0;
env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1;
env->vfp.xregs[ARM_VFP_MVFR2] = cpu->mvfr2;
cpu->powered_off = cpu->start_powered_off;
s->halted = cpu->start_powered_off;
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
}
if (arm_feature(env, ARM_FEATURE_AARCH64)) {
/* 64 bit CPUs always start in 64 bit mode */
env->aarch64 = 1;
#if defined(CONFIG_USER_ONLY)
env->pstate = PSTATE_MODE_EL0t;
/* Userspace expects access to DC ZVA, CTL_EL0 and the cache ops */
env->cp15.sctlr_el[1] |= SCTLR_UCT | SCTLR_UCI | SCTLR_DZE;
/* and to the FP/Neon instructions */
env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 20, 2, 3);
#else
/* Reset into the highest available EL */
if (arm_feature(env, ARM_FEATURE_EL3)) {
env->pstate = PSTATE_MODE_EL3h;
} else if (arm_feature(env, ARM_FEATURE_EL2)) {
env->pstate = PSTATE_MODE_EL2h;
} else {
env->pstate = PSTATE_MODE_EL1h;
}
env->pc = cpu->rvbar;
#endif
} else {
#if defined(CONFIG_USER_ONLY)
/* Userspace expects access to cp10 and cp11 for FP/Neon */
env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 20, 4, 0xf);
#endif
}
#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;
env->daif = PSTATE_D | PSTATE_A | PSTATE_I | PSTATE_F;
if (arm_feature(env, ARM_FEATURE_M)) {
uint32_t initial_msp; /* Loaded from 0x0 */
uint32_t initial_pc; /* Loaded from 0x4 */
if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {
env->v7m.secure = true;
}
/* In v7M the reset value of this bit is IMPDEF, but ARM recommends
* that it resets to 1, so QEMU always does that rather than making
* it dependent on CPU model. In v8M it is RES1.
*/
env->v7m.ccr[M_REG_NS] = R_V7M_CCR_STKALIGN_MASK;
env->v7m.ccr[M_REG_S] = R_V7M_CCR_STKALIGN_MASK;
if (arm_feature(env, ARM_FEATURE_V8)) {
/* in v8M the NONBASETHRDENA bit [0] is RES1 */
env->v7m.ccr[M_REG_NS] |= R_V7M_CCR_NONBASETHRDENA_MASK;
env->v7m.ccr[M_REG_S] |= R_V7M_CCR_NONBASETHRDENA_MASK;
}
/* Unlike A/R profile, M profile defines the reset LR value */
env->regs[14] = 0xffffffff;
#if 0
/* Load the initial SP and PC from the vector table at address 0 */
uint8_t *rom;
rom = rom_ptr(0);
if (rom) {
/* Address zero is covered by ROM which hasn't yet been
* copied into physical memory.
*/
initial_msp = ldl_p(rom);
initial_pc = ldl_p(rom + 4);
} else
#endif
{
/* Address zero not covered by a ROM blob, or the ROM blob
* is in non-modifiable memory and this is a second reset after
* it got copied into memory. In the latter case, rom_ptr
* will return a NULL pointer and we should use ldl_phys instead.
*/
initial_msp = ldl_phys(s->as, 0);
initial_pc = ldl_phys(s->as, 4);
}
env->regs[13] = initial_msp & 0xFFFFFFFC;
env->regs[15] = initial_pc & ~1;
env->thumb = initial_pc & 1;
}
// Unicorn: force Thumb mode by setting of uc_open()
env->thumb = env->uc->thumb;
/* AArch32 has a hard highvec setting of 0xFFFF0000. If we are currently
* executing as AArch32 then check if highvecs are enabled and
* adjust the PC accordingly.
*/
if (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_V) {
env->regs[15] = 0xFFFF0000;
}
env->vfp.xregs[ARM_VFP_FPEXC] = 0;
#endif
if (arm_feature(env, ARM_FEATURE_PMSA)) {
if (cpu->pmsav7_dregion > 0) {
if (arm_feature(env, ARM_FEATURE_V8)) {
memset(env->pmsav8.rbar[M_REG_NS], 0,
sizeof(*env->pmsav8.rbar[M_REG_NS])
* cpu->pmsav7_dregion);
memset(env->pmsav8.rlar[M_REG_NS], 0,
sizeof(*env->pmsav8.rlar[M_REG_NS])
* cpu->pmsav7_dregion);
if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {
memset(env->pmsav8.rbar[M_REG_S], 0,
sizeof(*env->pmsav8.rbar[M_REG_S])
* cpu->pmsav7_dregion);
memset(env->pmsav8.rlar[M_REG_S], 0,
sizeof(*env->pmsav8.rlar[M_REG_S])
* cpu->pmsav7_dregion);
}
} else if (arm_feature(env, ARM_FEATURE_V7)) {
memset(env->pmsav7.drbar, 0,
sizeof(*env->pmsav7.drbar) * cpu->pmsav7_dregion);
memset(env->pmsav7.drsr, 0,
sizeof(*env->pmsav7.drsr) * cpu->pmsav7_dregion);
memset(env->pmsav7.dracr, 0,
sizeof(*env->pmsav7.dracr) * cpu->pmsav7_dregion);
}
}
env->pmsav7.rnr[M_REG_NS] = 0;
env->pmsav7.rnr[M_REG_S] = 0;
env->pmsav8.mair0[M_REG_NS] = 0;
env->pmsav8.mair0[M_REG_S] = 0;
env->pmsav8.mair1[M_REG_NS] = 0;
env->pmsav8.mair1[M_REG_S] = 0;
}
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);
hw_breakpoint_update_all(cpu);
hw_watchpoint_update_all(cpu);
}
bool arm_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
{
CPUARMState *env = cs->env_ptr;
CPUClass *cc = CPU_GET_CLASS(env->uc, cs);
uint32_t cur_el = arm_current_el(env);
bool secure = arm_is_secure(env);
uint32_t target_el;
uint32_t excp_idx;
bool ret = false;
if (interrupt_request & CPU_INTERRUPT_FIQ) {
excp_idx = EXCP_FIQ;
target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure);
if (arm_excp_unmasked(cs, excp_idx, target_el)) {
cs->exception_index = excp_idx;
env->exception.target_el = target_el;
cc->do_interrupt(cs);
ret = true;
}
}
if (interrupt_request & CPU_INTERRUPT_HARD) {
excp_idx = EXCP_IRQ;
target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure);
if (arm_excp_unmasked(cs, excp_idx, target_el)) {
cs->exception_index = excp_idx;
env->exception.target_el = target_el;
cc->do_interrupt(cs);
ret = true;
}
}
if (interrupt_request & CPU_INTERRUPT_VIRQ) {
excp_idx = EXCP_VIRQ;
target_el = 1;
if (arm_excp_unmasked(cs, excp_idx, target_el)) {
cs->exception_index = excp_idx;
env->exception.target_el = target_el;
cc->do_interrupt(cs);
ret = true;
}
}
if (interrupt_request & CPU_INTERRUPT_VFIQ) {
excp_idx = EXCP_VFIQ;
target_el = 1;
if (arm_excp_unmasked(cs, excp_idx, target_el)) {
cs->exception_index = excp_idx;
env->exception.target_el = target_el;
cc->do_interrupt(cs);
ret = true;
}
}
return ret;
}
#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
static bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
{
CPUARMState *env = cs->env_ptr;
CPUClass *cc = CPU_GET_CLASS(env->uc, cs);
bool ret = false;
/* ARMv7-M interrupt masking works differently than -A or -R.
* There is no FIQ/IRQ distinction. Instead of I and F bits
* masking FIQ and IRQ interrupts, an exception is taken only
* if it is higher priority than the current execution priority
* (which depends on state like BASEPRI, FAULTMASK and the
* currently active exception).
*/
if (interrupt_request & CPU_INTERRUPT_HARD
/*&& (armv7m_nvic_can_take_pending_exception(env->nvic)) */) {
cs->exception_index = EXCP_IRQ;
cc->do_interrupt(cs);
ret = true;
}
return ret;
}
#endif
static QEMU_UNUSED_FUNC bool arm_cpu_is_big_endian(CPUState *cs)
{
ARMCPU *cpu = ARM_CPU(NULL, cs);
CPUARMState *env = &cpu->env;
int cur_el;
// UNICORN: Commented out
//cpu_synchronize_state(cs);
/* In 32bit guest endianness is determined by looking at CPSR's E bit */
if (!is_a64(env)) {
return (env->uncached_cpsr & CPSR_E) ? 1 : 0;
}
cur_el = arm_current_el(env);
if (cur_el == 0) {
return (env->cp15.sctlr_el[1] & SCTLR_E0E) != 0;
}
return (env->cp15.sctlr_el[cur_el] & SCTLR_EE) != 0;
}
static inline void set_feature(CPUARMState *env, int feature)
{
env->features |= 1ULL << feature;
}
static inline void unset_feature(CPUARMState *env, int feature)
{
env->features &= ~(1ULL << feature);
}
#define ARM_CPUS_PER_CLUSTER 8
static void arm_cpu_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
CPUState *cs = CPU(obj);
ARMCPU *cpu = ARM_CPU(uc, obj);
uint32_t Aff1, Aff0;
cs->env_ptr = &cpu->env;
cpu_exec_init(cs, opaque);
cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal,
g_free, g_free);
/* This cpu-id-to-MPIDR affinity is used only for TCG; KVM will override it.
* We don't support setting cluster ID ([16..23]) (known as Aff2
* in later ARM ARM versions), or any of the higher affinity level fields,
* so these bits always RAZ.
*/
Aff1 = cs->cpu_index / ARM_CPUS_PER_CLUSTER;
Aff0 = cs->cpu_index % ARM_CPUS_PER_CLUSTER;
cpu->mp_affinity = (Aff1 << ARM_AFF1_SHIFT) | Aff0;
#if 0
#ifndef CONFIG_USER_ONLY
/* Our inbound IRQ and FIQ lines */
cpu->gt_timer[GTIMER_PHYS] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
arm_gt_ptimer_cb, cpu);
cpu->gt_timer[GTIMER_VIRT] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
arm_gt_vtimer_cb, cpu);
cpu->gt_timer[GTIMER_HYP] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
arm_gt_htimer_cb, cpu);
cpu->gt_timer[GTIMER_SEC] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
arm_gt_stimer_cb, cpu);
//qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs,
// ARRAY_SIZE(cpu->gt_timer_outputs));
#endif
#endif
/* DTB consumers generally don't in fact care what the 'compatible'
* string is, so always provide some string and trust that a hypothetical
* picky DTB consumer will also provide a helpful error message.
*/
cpu->dtb_compatible = "qemu,unknown";
cpu->psci_version = 1; /* By default assume PSCI v0.1 */
cpu->kvm_target = QEMU_KVM_ARM_TARGET_NONE;
if (tcg_enabled(uc)) {
cpu->psci_version = 2; /* TCG implements PSCI 0.2 */
arm_translate_init(uc);
}
}
static void arm_cpu_post_init(struct uc_struct *uc, Object *obj)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
/* M profile implies PMSA. We have to do this here rather than
* in realize with the other feature-implication checks because
* we look at the PMSA bit to see if we should add some properties.
*/
if (arm_feature(&cpu->env, ARM_FEATURE_M)) {
set_feature(&cpu->env, ARM_FEATURE_PMSA);
}
if (arm_feature(&cpu->env, ARM_FEATURE_CBAR) ||
arm_feature(&cpu->env, ARM_FEATURE_CBAR_RO)) {
//qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_cbar_property,
// &error_abort);
}
if (!arm_feature(&cpu->env, ARM_FEATURE_M)) {
//qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_hivecs_property,
// &error_abort);
}
if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
//qdev_property_add_static(DEVICE(obj), &arm_cpu_rvbar_property,
// &error_abort);
}
if (arm_feature(&cpu->env, ARM_FEATURE_EL3)) {
/* Add the has_el3 state CPU property only if EL3 is allowed. This will
* prevent "has_el3" from existing on CPUs which cannot support EL3.
*/
//qdev_property_add_static(DEVICE(obj), &arm_cpu_has_el3_property,
// &error_abort);
#ifndef CONFIG_USER_ONLY
/* Unicorn: commented out
object_property_add_link(obj, "secure-memory",
TYPE_MEMORY_REGION,
(Object **)&cpu->secure_memory,
qdev_prop_allow_set_link_before_realize,
OBJ_PROP_LINK_UNREF_ON_RELEASE,
&error_abort);*/
#endif
}
}
static void arm_cpu_finalizefn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
g_hash_table_destroy(cpu->cp_regs);
}
static int arm_cpu_realizefn(struct uc_struct *uc, DeviceState *dev, Error **errp)
{
CPUState *cs = CPU(dev);
ARMCPU *cpu = ARM_CPU(uc, dev);
ARMCPUClass *acc = ARM_CPU_GET_CLASS(uc, dev);
CPUARMState *env = &cpu->env;
/* Some features automatically imply others: */
if (arm_feature(env, ARM_FEATURE_V8)) {
set_feature(env, ARM_FEATURE_V7);
set_feature(env, ARM_FEATURE_ARM_DIV);
set_feature(env, ARM_FEATURE_LPAE);
}
if (arm_feature(env, ARM_FEATURE_V7)) {
set_feature(env, ARM_FEATURE_VAPA);
set_feature(env, ARM_FEATURE_THUMB2);
set_feature(env, ARM_FEATURE_MPIDR);
if (!arm_feature(env, ARM_FEATURE_M)) {
set_feature(env, ARM_FEATURE_V6K);
} else {
set_feature(env, ARM_FEATURE_V6);
}
/* Always define VBAR for V7 CPUs even if it doesn't exist in
* non-EL3 configs. This is needed by some legacy boards.
*/
set_feature(env, ARM_FEATURE_VBAR);
}
if (arm_feature(env, ARM_FEATURE_V6K)) {
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_MVFR);
}
if (arm_feature(env, ARM_FEATURE_V6)) {
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_JAZELLE);
if (!arm_feature(env, ARM_FEATURE_M)) {
set_feature(env, ARM_FEATURE_AUXCR);
}
}
if (arm_feature(env, ARM_FEATURE_V5)) {
set_feature(env, ARM_FEATURE_V4T);
}
if (arm_feature(env, ARM_FEATURE_M)) {
set_feature(env, ARM_FEATURE_THUMB_DIV);
}
if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {
set_feature(env, ARM_FEATURE_THUMB_DIV);
}
if (arm_feature(env, ARM_FEATURE_VFP4)) {
set_feature(env, ARM_FEATURE_VFP3);
set_feature(env, ARM_FEATURE_VFP_FP16);
}
if (arm_feature(env, ARM_FEATURE_VFP3)) {
set_feature(env, ARM_FEATURE_VFP);
}
if (arm_feature(env, ARM_FEATURE_LPAE)) {
set_feature(env, ARM_FEATURE_V7MP);
set_feature(env, ARM_FEATURE_PXN);
}
if (arm_feature(env, ARM_FEATURE_CBAR_RO)) {
set_feature(env, ARM_FEATURE_CBAR);
}
if (arm_feature(env, ARM_FEATURE_THUMB2) &&
!arm_feature(env, ARM_FEATURE_M)) {
set_feature(env, ARM_FEATURE_THUMB_DSP);
}
if (cpu->reset_hivecs) {
cpu->reset_sctlr |= (1 << 13);
}
if (cpu->cfgend) {
if (arm_feature(&cpu->env, ARM_FEATURE_V7)) {
cpu->reset_sctlr |= SCTLR_EE;
} else {
cpu->reset_sctlr |= SCTLR_B;
}
}
if (!cpu->has_el3) {
/* If the has_el3 CPU property is disabled then we need to disable the
* feature.
*/
unset_feature(env, ARM_FEATURE_EL3);
/* Disable the security extension feature bits in the processor feature
* registers as well. These are id_pfr1[7:4] and id_aa64pfr0[15:12].
*/
cpu->id_pfr1 &= ~0xf0;
cpu->id_aa64pfr0 &= ~0xf000;
}
if (!cpu->has_el2) {
unset_feature(env, ARM_FEATURE_EL2);
}
if (!cpu->has_pmu) {
unset_feature(env, ARM_FEATURE_PMU);
cpu->id_aa64dfr0 &= ~0xf00;
}
if (!arm_feature(env, ARM_FEATURE_EL2)) {
/* Disable the hypervisor feature bits in the processor feature
* registers if we don't have EL2. These are id_pfr1[15:12] and
* id_aa64pfr0_el1[11:8].
*/
cpu->id_aa64pfr0 &= ~0xf00;
cpu->id_pfr1 &= ~0xf000;
}
/* MPU can be configured out of a PMSA CPU either by setting has-mpu
* to false or by setting pmsav7-dregion to 0.
*/
if (!cpu->has_mpu) {
cpu->pmsav7_dregion = 0;
}
if (cpu->pmsav7_dregion == 0) {
cpu->has_mpu = false;
}
if (arm_feature(env, ARM_FEATURE_PMSA) &&
arm_feature(env, ARM_FEATURE_V7)) {
uint32_t nr = cpu->pmsav7_dregion;
if (nr > 0xff) {
error_setg(errp, "PMSAv7 MPU #regions invalid %" PRIu32 "\n", nr);
return -1;
}
if (nr) {
if (arm_feature(env, ARM_FEATURE_V8)) {
/* PMSAv8 */
env->pmsav8.rbar[M_REG_NS] = g_new0(uint32_t, nr);
env->pmsav8.rlar[M_REG_NS] = g_new0(uint32_t, nr);
if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {
env->pmsav8.rbar[M_REG_S] = g_new0(uint32_t, nr);
env->pmsav8.rlar[M_REG_S] = g_new0(uint32_t, nr);
}
} else {
env->pmsav7.drbar = g_new0(uint32_t, nr);
env->pmsav7.drsr = g_new0(uint32_t, nr);
env->pmsav7.dracr = g_new0(uint32_t, nr);
}
}
}
if (arm_feature(env, ARM_FEATURE_EL3)) {
set_feature(env, ARM_FEATURE_VBAR);
}
register_cp_regs_for_features(cpu);
arm_cpu_register_gdb_regs_for_features(cpu);
#ifndef CONFIG_USER_ONLY
if (cpu->has_el3 || arm_feature(env, ARM_FEATURE_M_SECURITY)) {
AddressSpace *as;
cs->num_ases = 2;
if (!cpu->secure_memory) {
cpu->secure_memory = cs->memory;
}
as = address_space_init_shareable(uc,
cpu->secure_memory,
"cpu-secure-memory");
cpu_address_space_init(cs, as, ARMASIdx_S);
} else {
cs->num_ases = 1;
}
cpu_address_space_init(cs,
address_space_init_shareable(uc,
cs->memory,
"cpu-memory"),
ARMASIdx_NS);
#endif
init_cpreg_list(cpu);
qemu_init_vcpu(cs);
cpu_reset(cs);
acc->parent_realize(uc, dev, errp);
return 0;
}
static ObjectClass *arm_cpu_class_by_name(struct uc_struct *uc, const char *cpu_model)
{
ObjectClass *oc;
char *typename;
if (!cpu_model) {
return NULL;
}
typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpu_model);
oc = object_class_by_name(uc, typename);
g_free(typename);
if (!oc || !object_class_dynamic_cast(uc, oc, TYPE_ARM_CPU) ||
object_class_is_abstract(oc)) {
return NULL;
}
return oc;
}
/* CPU models. These are not needed for the AArch64 linux-user build. */
#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
static void arm926_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,arm926";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
set_feature(&cpu->env, ARM_FEATURE_JAZELLE);
cpu->midr = 0x41069265;
cpu->reset_fpsid = 0x41011090;
cpu->ctr = 0x1dd20d2;
cpu->reset_sctlr = 0x00090078;
}
static void arm946_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,arm946";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_PMSA);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
cpu->midr = 0x41059461;
cpu->ctr = 0x0f004006;
cpu->reset_sctlr = 0x00000078;
}
static void arm1026_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,arm1026";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_AUXCR);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
set_feature(&cpu->env, ARM_FEATURE_JAZELLE);
cpu->midr = 0x4106a262;
cpu->reset_fpsid = 0x410110a0;
cpu->ctr = 0x1dd20d2;
cpu->reset_sctlr = 0x00090078;
cpu->reset_auxcr = 1;
{
/* The 1026 had an IFAR at c6,c0,0,1 rather than the ARMv6 c6,c0,0,2 */
ARMCPRegInfo ifar = { 0 };
ifar.name = "IFAR";
ifar.cp = 15;
ifar.crn = 6;
ifar.crm = 0;
ifar.opc1 = 0;
ifar.opc2 = 1;
ifar.access = PL1_RW;
ifar.fieldoffset = offsetof(CPUARMState, cp15.ifar_ns),
ifar.resetvalue = 0;
define_one_arm_cp_reg(cpu, &ifar);
}
}
static void arm1136_r2_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
/* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an
* older core than plain "arm1136". In particular this does not
* have the v6K features.
* These ID register values are correct for 1136 but may be wrong
* for 1136_r2 (in particular r0p2 does not actually implement most
* of the ID registers).
*/
cpu->dtb_compatible = "arm,arm1136";
set_feature(&cpu->env, ARM_FEATURE_V6);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
cpu->midr = 0x4107b362;
cpu->reset_fpsid = 0x410120b4;
cpu->mvfr0 = 0x11111111;
cpu->mvfr1 = 0x00000000;
cpu->ctr = 0x1dd20d2;
cpu->reset_sctlr = 0x00050078;
cpu->id_pfr0 = 0x111;
cpu->id_pfr1 = 0x1;
cpu->id_dfr0 = 0x2;
cpu->id_afr0 = 0x3;
cpu->id_mmfr0 = 0x01130003;
cpu->id_mmfr1 = 0x10030302;
cpu->id_mmfr2 = 0x01222110;
cpu->id_isar0 = 0x00140011;
cpu->id_isar1 = 0x12002111;
cpu->id_isar2 = 0x11231111;
cpu->id_isar3 = 0x01102131;
cpu->id_isar4 = 0x141;
cpu->reset_auxcr = 7;
}
static void arm1136_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,arm1136";
set_feature(&cpu->env, ARM_FEATURE_V6K);
set_feature(&cpu->env, ARM_FEATURE_V6);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
cpu->midr = 0x4117b363;
cpu->reset_fpsid = 0x410120b4;
cpu->mvfr0 = 0x11111111;
cpu->mvfr1 = 0x00000000;
cpu->ctr = 0x1dd20d2;
cpu->reset_sctlr = 0x00050078;
cpu->id_pfr0 = 0x111;
cpu->id_pfr1 = 0x1;
cpu->id_dfr0 = 0x2;
cpu->id_afr0 = 0x3;
cpu->id_mmfr0 = 0x01130003;
cpu->id_mmfr1 = 0x10030302;
cpu->id_mmfr2 = 0x01222110;
cpu->id_isar0 = 0x00140011;
cpu->id_isar1 = 0x12002111;
cpu->id_isar2 = 0x11231111;
cpu->id_isar3 = 0x01102131;
cpu->id_isar4 = 0x141;
cpu->reset_auxcr = 7;
}
static void arm1176_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,arm1176";
set_feature(&cpu->env, ARM_FEATURE_V6K);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_VAPA);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
set_feature(&cpu->env, ARM_FEATURE_EL3);
cpu->midr = 0x410fb767;
cpu->reset_fpsid = 0x410120b5;
cpu->mvfr0 = 0x11111111;
cpu->mvfr1 = 0x00000000;
cpu->ctr = 0x1dd20d2;
cpu->reset_sctlr = 0x00050078;
cpu->id_pfr0 = 0x111;
cpu->id_pfr1 = 0x11;
cpu->id_dfr0 = 0x33;
cpu->id_afr0 = 0;
cpu->id_mmfr0 = 0x01130003;
cpu->id_mmfr1 = 0x10030302;
cpu->id_mmfr2 = 0x01222100;
cpu->id_isar0 = 0x0140011;
cpu->id_isar1 = 0x12002111;
cpu->id_isar2 = 0x11231121;
cpu->id_isar3 = 0x01102131;
cpu->id_isar4 = 0x01141;
cpu->reset_auxcr = 7;
}
static void arm11mpcore_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,arm11mpcore";
set_feature(&cpu->env, ARM_FEATURE_V6K);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_VAPA);
set_feature(&cpu->env, ARM_FEATURE_MPIDR);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
cpu->midr = 0x410fb022;
cpu->reset_fpsid = 0x410120b4;
cpu->mvfr0 = 0x11111111;
cpu->mvfr1 = 0x00000000;
cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */
cpu->id_pfr0 = 0x111;
cpu->id_pfr1 = 0x1;
cpu->id_dfr0 = 0;
cpu->id_afr0 = 0x2;
cpu->id_mmfr0 = 0x01100103;
cpu->id_mmfr1 = 0x10020302;
cpu->id_mmfr2 = 0x01222000;
cpu->id_isar0 = 0x00100011;
cpu->id_isar1 = 0x12002111;
cpu->id_isar2 = 0x11221011;
cpu->id_isar3 = 0x01102131;
cpu->id_isar4 = 0x141;
cpu->reset_auxcr = 1;
}
static void cortex_m3_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_M);
cpu->midr = 0x410fc231;
cpu->pmsav7_dregion = 8;
}
static void cortex_m4_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_M);
set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP);
cpu->midr = 0x410fc240; /* r0p0 */
cpu->pmsav7_dregion = 8;
}
static void arm_v7m_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
{
CPUClass *cc = CPU_CLASS(uc, oc);
#ifndef CONFIG_USER_ONLY
cc->do_interrupt = arm_v7m_cpu_do_interrupt;
#endif
cc->cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt;
}
static const ARMCPRegInfo cortexr5_cp_reginfo[] = {
/* Dummy the TCM region regs for the moment */
{ "ATCM", 15,9,1, 0,0,0, 0,ARM_CP_CONST, PL1_RW },
{ "BTCM", 15,9,1, 0,0,1, 0,ARM_CP_CONST, PL1_RW },
{ "DCACHE_INVAL", 15,15,5, 0,0,0, 0, ARM_CP_NOP, PL1_W },
REGINFO_SENTINEL
};
static void cortex_r5_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_THUMB_DIV);
set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
set_feature(&cpu->env, ARM_FEATURE_V7MP);
set_feature(&cpu->env, ARM_FEATURE_PMSA);
cpu->midr = 0x411fc153; /* r1p3 */
cpu->id_pfr0 = 0x0131;
cpu->id_pfr1 = 0x001;
cpu->id_dfr0 = 0x010400;
cpu->id_afr0 = 0x0;
cpu->id_mmfr0 = 0x0210030;
cpu->id_mmfr1 = 0x00000000;
cpu->id_mmfr2 = 0x01200000;
cpu->id_mmfr3 = 0x0211;
cpu->id_isar0 = 0x2101111;
cpu->id_isar1 = 0x13112111;
cpu->id_isar2 = 0x21232141;
cpu->id_isar3 = 0x01112131;
cpu->id_isar4 = 0x0010142;
cpu->id_isar5 = 0x0;
cpu->mp_is_up = true;
define_arm_cp_regs(cpu, cortexr5_cp_reginfo);
}
static const ARMCPRegInfo cortexa8_cp_reginfo[] = {
{ "L2LOCKDOWN", 15,9,0, 0,1,0, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
{ "L2AUXCR", 15,9,0, 0,1,2, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
REGINFO_SENTINEL
};
static void cortex_a8_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,cortex-a8";
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_VFP3);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_EL3);
cpu->midr = 0x410fc080;
cpu->reset_fpsid = 0x410330c0;
cpu->mvfr0 = 0x11110222;
cpu->mvfr1 = 0x00011111;
cpu->ctr = 0x82048004;
cpu->reset_sctlr = 0x00c50078;
cpu->id_pfr0 = 0x1031;
cpu->id_pfr1 = 0x11;
cpu->id_dfr0 = 0x400;
cpu->id_afr0 = 0;
cpu->id_mmfr0 = 0x31100003;
cpu->id_mmfr1 = 0x20000000;
cpu->id_mmfr2 = 0x01202000;
cpu->id_mmfr3 = 0x11;
cpu->id_isar0 = 0x00101111;
cpu->id_isar1 = 0x12112111;
cpu->id_isar2 = 0x21232031;
cpu->id_isar3 = 0x11112131;
cpu->id_isar4 = 0x00111142;
cpu->dbgdidr = 0x15141000;
cpu->clidr = (1 << 27) | (2 << 24) | 3;
cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */
cpu->ccsidr[1] = 0x2007e01a; /* 16k L1 icache. */
cpu->ccsidr[2] = 0xf0000000; /* No L2 icache. */
cpu->reset_auxcr = 2;
define_arm_cp_regs(cpu, cortexa8_cp_reginfo);
}
static const ARMCPRegInfo cortexa9_cp_reginfo[] = {
/* power_control should be set to maximum latency. Again,
* default to 0 and set by private hook
*/
{ "A9_PWRCTL", 15,15,0, 0,0,0, 0,
0, PL1_RW, 0, NULL, 0, offsetof(CPUARMState, cp15.c15_power_control) },
{ "A9_DIAG", 15,15,0, 0,0,1, 0,
0, PL1_RW, 0, NULL, 0, offsetof(CPUARMState, cp15.c15_diagnostic) },
{ "A9_PWRDIAG",15,15,0, 0,0,2, 0,
0, PL1_RW, 0, NULL, 0, offsetof(CPUARMState, cp15.c15_power_diagnostic) },
{ "NEONBUSY", 15,15,1, 0,0,0, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
/* TLB lockdown control */
{ "TLB_LOCKR", 15,15,4, 0,5,2, 0,
ARM_CP_NOP, PL1_W, 0, NULL, 0 },
{ "TLB_LOCKW", 15,15,4, 0,5,4, 0,
ARM_CP_NOP, PL1_W, 0, NULL, 0, },
{ "TLB_VA", 15,15,5, 0,5,2, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
{ "TLB_PA", 15,15,6, 0,5,2, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
{ "TLB_ATTR", 15,15,7, 0,5,2, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
REGINFO_SENTINEL
};
static void cortex_a9_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,cortex-a9";
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_VFP3);
set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_EL3);
/* Note that A9 supports the MP extensions even for
* A9UP and single-core A9MP (which are both different
* and valid configurations; we don't model A9UP).
*/
set_feature(&cpu->env, ARM_FEATURE_V7MP);
set_feature(&cpu->env, ARM_FEATURE_CBAR);
cpu->midr = 0x410fc090;
cpu->reset_fpsid = 0x41033090;
cpu->mvfr0 = 0x11110222;
cpu->mvfr1 = 0x01111111;
cpu->ctr = 0x80038003;
cpu->reset_sctlr = 0x00c50078;
cpu->id_pfr0 = 0x1031;
cpu->id_pfr1 = 0x11;
cpu->id_dfr0 = 0x000;
cpu->id_afr0 = 0;
cpu->id_mmfr0 = 0x00100103;
cpu->id_mmfr1 = 0x20000000;
cpu->id_mmfr2 = 0x01230000;
cpu->id_mmfr3 = 0x00002111;
cpu->id_isar0 = 0x00101111;
cpu->id_isar1 = 0x13112111;
cpu->id_isar2 = 0x21232041;
cpu->id_isar3 = 0x11112131;
cpu->id_isar4 = 0x00111142;
cpu->dbgdidr = 0x35141000;
cpu->clidr = (1 << 27) | (1 << 24) | 3;
cpu->ccsidr[0] = 0xe00fe019; /* 16k L1 dcache. */
cpu->ccsidr[1] = 0x200fe019; /* 16k L1 icache. */
define_arm_cp_regs(cpu, cortexa9_cp_reginfo);
}
#ifndef CONFIG_USER_ONLY
static uint64_t a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
/* Linux wants the number of processors from here.
* Might as well set the interrupt-controller bit too.
*/
return ((smp_cpus - 1) << 24) | (1 << 23);
}
#endif
static const ARMCPRegInfo cortexa15_cp_reginfo[] = {
#ifndef CONFIG_USER_ONLY
{ "L2CTLR", 15,9,0, 0,1,2, 0,
0, PL1_RW, 0, NULL, 0, 0, {0, 0},
NULL, a15_l2ctlr_read, arm_cp_write_ignore, },
#endif
{ "L2ECTLR", 15,9,0, 0,1,3, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
REGINFO_SENTINEL
};
static void cortex_a7_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,cortex-a7";
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
set_feature(&cpu->env, ARM_FEATURE_LPAE);
set_feature(&cpu->env, ARM_FEATURE_EL3);
cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A7;
cpu->midr = 0x410fc075;
cpu->reset_fpsid = 0x41023075;
cpu->mvfr0 = 0x10110222;
cpu->mvfr1 = 0x11111111;
cpu->ctr = 0x84448003;
cpu->reset_sctlr = 0x00c50078;
cpu->id_pfr0 = 0x00001131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x02010555;
cpu->pmceid0 = 0x00000000;
cpu->pmceid1 = 0x00000000;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10101105;
cpu->id_mmfr1 = 0x40000000;
cpu->id_mmfr2 = 0x01240000;
cpu->id_mmfr3 = 0x02102211;
cpu->id_isar0 = 0x01101110;
cpu->id_isar1 = 0x13112111;
cpu->id_isar2 = 0x21232041;
cpu->id_isar3 = 0x11112131;
cpu->id_isar4 = 0x10011142;
cpu->dbgdidr = 0x3515f005;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */
cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */
cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */
define_arm_cp_regs(cpu, cortexa15_cp_reginfo); /* Same as A15 */
}
static void cortex_a15_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,cortex-a15";
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
set_feature(&cpu->env, ARM_FEATURE_LPAE);
set_feature(&cpu->env, ARM_FEATURE_EL3);
cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A15;
cpu->midr = 0x412fc0f1;
cpu->reset_fpsid = 0x410430f0;
cpu->mvfr0 = 0x10110222;
cpu->mvfr1 = 0x11111111;
cpu->ctr = 0x8444c004;
cpu->reset_sctlr = 0x00c50078;
cpu->id_pfr0 = 0x00001131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x02010555;
cpu->pmceid0 = 0x00000000;
cpu->pmceid1 = 0x00000000;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10201105;
cpu->id_mmfr1 = 0x20000000;
cpu->id_mmfr2 = 0x01240000;
cpu->id_mmfr3 = 0x02102211;
cpu->id_isar0 = 0x02101110;
cpu->id_isar1 = 0x13112111;
cpu->id_isar2 = 0x21232041;
cpu->id_isar3 = 0x11112131;
cpu->id_isar4 = 0x10011142;
cpu->dbgdidr = 0x3515f021;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */
cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */
cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */
define_arm_cp_regs(cpu, cortexa15_cp_reginfo);
}
static void ti925t_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V4T);
set_feature(&cpu->env, ARM_FEATURE_OMAPCP);
cpu->midr = ARM_CPUID_TI925T;
cpu->ctr = 0x5109149;
cpu->reset_sctlr = 0x00000070;
}
static void sa1100_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "intel,sa1100";
set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
cpu->midr = 0x4401A11B;
cpu->reset_sctlr = 0x00000070;
}
static void sa1110_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
cpu->midr = 0x6901B119;
cpu->reset_sctlr = 0x00000070;
}
static void pxa250_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = 0x69052100;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa255_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = 0x69052d00;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa260_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = 0x69052903;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa261_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = 0x69052d05;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa262_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = 0x69052d06;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa270a0_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = 0x69054110;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa270a1_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = 0x69054111;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa270b0_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = 0x69054112;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa270b1_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = 0x69054113;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa270c0_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = 0x69054114;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
static void pxa270c5_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "marvell,xscale";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = 0x69054117;
cpu->ctr = 0xd172172;
cpu->reset_sctlr = 0x00000078;
}
#ifdef CONFIG_USER_ONLY
static void arm_any_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_V8_AES);
set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
set_feature(&cpu->env, ARM_FEATURE_CRC);
cpu->midr = 0xffffffff;
}
#endif
#endif /* !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) */
typedef struct ARMCPUInfo {
const char *name;
void (*initfn)(struct uc_struct *uc, Object *obj, void *opaque);
void (*class_init)(struct uc_struct *uc, ObjectClass *oc, void *data);
} ARMCPUInfo;
static const ARMCPUInfo arm_cpus[] = {
#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
{ "arm926", arm926_initfn },
{ "arm946", arm946_initfn },
{ "arm1026", arm1026_initfn },
/* What QEMU calls "arm1136-r2" is actually the 1136 r0p2, i.e. an
* older core than plain "arm1136". In particular this does not
* have the v6K features.
*/
{ "arm1136-r2", arm1136_r2_initfn },
{ "arm1136", arm1136_initfn },
{ "arm1176", arm1176_initfn },
{ "arm11mpcore", arm11mpcore_initfn },
{ "cortex-m3", cortex_m3_initfn, arm_v7m_class_init },
{ "cortex-m4", cortex_m4_initfn, arm_v7m_class_init },
{ "cortex-r5", cortex_r5_initfn },
{ "cortex-a7", cortex_a7_initfn },
{ "cortex-a8", cortex_a8_initfn },
{ "cortex-a9", cortex_a9_initfn },
{ "cortex-a15", cortex_a15_initfn },
{ "ti925t", ti925t_initfn },
{ "sa1100", sa1100_initfn },
{ "sa1110", sa1110_initfn },
{ "pxa250", pxa250_initfn },
{ "pxa255", pxa255_initfn },
{ "pxa260", pxa260_initfn },
{ "pxa261", pxa261_initfn },
{ "pxa262", pxa262_initfn },
/* "pxa270" is an alias for "pxa270-a0" */
{ "pxa270", pxa270a0_initfn },
{ "pxa270-a0", pxa270a0_initfn },
{ "pxa270-a1", pxa270a1_initfn },
{ "pxa270-b0", pxa270b0_initfn },
{ "pxa270-b1", pxa270b1_initfn },
{ "pxa270-c0", pxa270c0_initfn },
{ "pxa270-c5", pxa270c5_initfn },
#ifdef CONFIG_USER_ONLY
{ "any", arm_any_initfn },
#endif
#endif
{ NULL }
};
#ifdef CONFIG_USER_ONLY
static int arm_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
int mmu_idx)
{
ARMCPU *cpu = ARM_CPU(NULL, cs);
CPUARMState *env = &cpu->env;
env->exception.vaddress = address;
if (rw == 2) {
cs->exception_index = EXCP_PREFETCH_ABORT;
} else {
cs->exception_index = EXCP_DATA_ABORT;
}
return 1;
}
#endif
static void arm_cpu_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
{
ARMCPUClass *acc = ARM_CPU_CLASS(uc, oc);
CPUClass *cc = CPU_CLASS(uc, acc);
DeviceClass *dc = DEVICE_CLASS(uc, oc);
acc->parent_realize = dc->realize;
dc->realize = arm_cpu_realizefn;
//dc->props = arm_cpu_properties;
acc->parent_reset = cc->reset;
cc->reset = arm_cpu_reset;
cc->class_by_name = arm_cpu_class_by_name;
cc->has_work = arm_cpu_has_work;
cc->cpu_exec_interrupt = arm_cpu_exec_interrupt;
//cc->dump_state = arm_cpu_dump_state;
cc->set_pc = arm_cpu_set_pc;
#ifdef CONFIG_USER_ONLY
cc->handle_mmu_fault = arm_cpu_handle_mmu_fault;
#else
cc->do_interrupt = arm_cpu_do_interrupt;
cc->do_unaligned_access = arm_cpu_do_unaligned_access;
cc->get_phys_page_attrs_debug = arm_cpu_get_phys_page_attrs_debug;
cc->asidx_from_attrs = arm_asidx_from_attrs;
// UNICORN: Commented out
//cc->vmsd = &vmstate_arm_cpu;
//cc->virtio_is_big_endian = arm_cpu_is_big_endian;
#endif
cc->debug_excp_handler = arm_debug_excp_handler;
cc->debug_check_watchpoint = arm_debug_check_watchpoint;
#if !defined(CONFIG_USER_ONLY)
cc->adjust_watchpoint_address = arm_adjust_watchpoint_address;
#endif
}
static void cpu_register(struct uc_struct *uc, const ARMCPUInfo *info)
{
TypeInfo type_info = { 0 };
type_info.parent = TYPE_ARM_CPU;
type_info.instance_size = sizeof(ARMCPU);
type_info.instance_init = info->initfn;
type_info.class_size = sizeof(ARMCPUClass);
type_info.class_init = info->class_init;
type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
type_register(uc, &type_info);
g_free((void *)type_info.name);
}
void arm_cpu_register_types(void *opaque)
{
const ARMCPUInfo *info = arm_cpus;
TypeInfo arm_cpu_type_info = { 0 };
arm_cpu_type_info.name = TYPE_ARM_CPU,
arm_cpu_type_info.parent = TYPE_CPU,
arm_cpu_type_info.instance_userdata = opaque,
arm_cpu_type_info.instance_size = sizeof(ARMCPU),
arm_cpu_type_info.instance_init = arm_cpu_initfn,
arm_cpu_type_info.instance_post_init = arm_cpu_post_init,
arm_cpu_type_info.instance_finalize = arm_cpu_finalizefn,
arm_cpu_type_info.abstract = true,
arm_cpu_type_info.class_size = sizeof(ARMCPUClass),
arm_cpu_type_info.class_init = arm_cpu_class_init,
type_register_static(opaque, &arm_cpu_type_info);
while (info->name) {
cpu_register(opaque, info);
info++;
}
}
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