#include "config.h"
#include "qemu-common.h"
-#include "cpu-defs.h"
+#include "exec/cpu-defs.h"
-#include "softfloat.h"
+#include "fpu/softfloat.h"
#define TARGET_HAS_ICE 1
typedef struct CPUARMState {
/* Regs for current mode. */
uint32_t regs[16];
- /* Frequently accessed CPSR bits are stored separately for efficiently.
+ /* Frequently accessed CPSR bits are stored separately for efficiency.
This contains all the other bits. Use cpsr_{read,write} to access
the whole CPSR. */
uint32_t uncached_cpsr;
/* System control coprocessor (cp15) */
struct {
uint32_t c0_cpuid;
- uint32_t c0_cachetype;
- uint32_t c0_ccsid[16]; /* Cache size. */
- uint32_t c0_clid; /* Cache level. */
uint32_t c0_cssel; /* Cache size selection. */
- uint32_t c0_c1[8]; /* Feature registers. */
- uint32_t c0_c2[8]; /* Instruction set registers. */
uint32_t c1_sys; /* System control register. */
uint32_t c1_coproc; /* Coprocessor access register. */
uint32_t c1_xscaleauxcr; /* XScale auxiliary control register. */
uint32_t c1_scr; /* secure config register. */
uint32_t c2_base0; /* MMU translation table base 0. */
- uint32_t c2_base1; /* MMU translation table base 1. */
+ uint32_t c2_base0_hi; /* MMU translation table base 0, high 32 bits */
+ uint32_t c2_base1; /* MMU translation table base 0. */
+ uint32_t c2_base1_hi; /* MMU translation table base 1, high 32 bits */
uint32_t c2_control; /* MMU translation table base control. */
uint32_t c2_mask; /* MMU translation table base selection mask. */
uint32_t c2_base_mask; /* MMU translation table base 0 mask. */
uint32_t c6_insn; /* Fault address registers. */
uint32_t c6_data;
uint32_t c7_par; /* Translation result. */
+ uint32_t c7_par_hi; /* Translation result, high 32 bits */
uint32_t c9_insn; /* Cache lockdown registers. */
uint32_t c9_data;
uint32_t c9_pmcr; /* performance monitor control register */
/* These fields after the common ones so they are preserved on reset. */
/* Internal CPU feature flags. */
- uint32_t features;
+ uint64_t features;
- /* Coprocessor IO used by peripherals */
- struct {
- ARMReadCPFunc *cp_read;
- ARMWriteCPFunc *cp_write;
- void *opaque;
- } cp[15];
void *nvic;
const struct arm_boot_info *boot_info;
} CPUARMState;
ARMCPU *cpu_arm_init(const char *cpu_model);
void arm_translate_init(void);
+void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu);
int cpu_arm_exec(CPUARMState *s);
-void do_interrupt(CPUARMState *);
+int bank_number(int mode);
void switch_mode(CPUARMState *, int);
uint32_t do_arm_semihosting(CPUARMState *env);
ARM_FEATURE_VFP4, /* VFPv4 (implies that NEON is v2) */
ARM_FEATURE_GENERIC_TIMER,
ARM_FEATURE_MVFR, /* Media and VFP Feature Registers 0 and 1 */
+ ARM_FEATURE_DUMMY_C15_REGS, /* RAZ/WI all of cp15 crn=15 */
+ ARM_FEATURE_CACHE_TEST_CLEAN, /* 926/1026 style test-and-clean ops */
+ ARM_FEATURE_CACHE_DIRTY_REG, /* 1136/1176 cache dirty status register */
+ ARM_FEATURE_CACHE_BLOCK_OPS, /* v6 optional cache block operations */
+ ARM_FEATURE_MPIDR, /* has cp15 MPIDR */
+ ARM_FEATURE_PXN, /* has Privileged Execute Never bit */
+ ARM_FEATURE_LPAE, /* has Large Physical Address Extension */
};
static inline int arm_feature(CPUARMState *env, int feature)
{
- return (env->features & (1u << feature)) != 0;
+ return (env->features & (1ULL << feature)) != 0;
}
void arm_cpu_list(FILE *f, fprintf_function cpu_fprintf);
int armv7m_nvic_acknowledge_irq(void *opaque);
void armv7m_nvic_complete_irq(void *opaque, int irq);
-void cpu_arm_set_cp_io(CPUARMState *env, int cpnum,
- ARMReadCPFunc *cp_read, ARMWriteCPFunc *cp_write,
- void *opaque);
+/* Interface for defining coprocessor registers.
+ * Registers are defined in tables of arm_cp_reginfo structs
+ * which are passed to define_arm_cp_regs().
+ */
+
+/* When looking up a coprocessor register we look for it
+ * via an integer which encodes all of:
+ * coprocessor number
+ * Crn, Crm, opc1, opc2 fields
+ * 32 or 64 bit register (ie is it accessed via MRC/MCR
+ * or via MRRC/MCRR?)
+ * We allow 4 bits for opc1 because MRRC/MCRR have a 4 bit field.
+ * (In this case crn and opc2 should be zero.)
+ */
+#define ENCODE_CP_REG(cp, is64, crn, crm, opc1, opc2) \
+ (((cp) << 16) | ((is64) << 15) | ((crn) << 11) | \
+ ((crm) << 7) | ((opc1) << 3) | (opc2))
+
+/* ARMCPRegInfo type field bits. If the SPECIAL bit is set this is a
+ * special-behaviour cp reg and bits [15..8] indicate what behaviour
+ * it has. Otherwise it is a simple cp reg, where CONST indicates that
+ * TCG can assume the value to be constant (ie load at translate time)
+ * and 64BIT indicates a 64 bit wide coprocessor register. SUPPRESS_TB_END
+ * indicates that the TB should not be ended after a write to this register
+ * (the default is that the TB ends after cp writes). OVERRIDE permits
+ * a register definition to override a previous definition for the
+ * same (cp, is64, crn, crm, opc1, opc2) tuple: either the new or the
+ * old must have the OVERRIDE bit set.
+ */
+#define ARM_CP_SPECIAL 1
+#define ARM_CP_CONST 2
+#define ARM_CP_64BIT 4
+#define ARM_CP_SUPPRESS_TB_END 8
+#define ARM_CP_OVERRIDE 16
+#define ARM_CP_NOP (ARM_CP_SPECIAL | (1 << 8))
+#define ARM_CP_WFI (ARM_CP_SPECIAL | (2 << 8))
+#define ARM_LAST_SPECIAL ARM_CP_WFI
+/* Used only as a terminator for ARMCPRegInfo lists */
+#define ARM_CP_SENTINEL 0xffff
+/* Mask of only the flag bits in a type field */
+#define ARM_CP_FLAG_MASK 0x1f
+
+/* Return true if cptype is a valid type field. This is used to try to
+ * catch errors where the sentinel has been accidentally left off the end
+ * of a list of registers.
+ */
+static inline bool cptype_valid(int cptype)
+{
+ return ((cptype & ~ARM_CP_FLAG_MASK) == 0)
+ || ((cptype & ARM_CP_SPECIAL) &&
+ (cptype <= ARM_LAST_SPECIAL));
+}
+
+/* Access rights:
+ * We define bits for Read and Write access for what rev C of the v7-AR ARM ARM
+ * defines as PL0 (user), PL1 (fiq/irq/svc/abt/und/sys, ie privileged), and
+ * PL2 (hyp). The other level which has Read and Write bits is Secure PL1
+ * (ie any of the privileged modes in Secure state, or Monitor mode).
+ * If a register is accessible in one privilege level it's always accessible
+ * in higher privilege levels too. Since "Secure PL1" also follows this rule
+ * (ie anything visible in PL2 is visible in S-PL1, some things are only
+ * visible in S-PL1) but "Secure PL1" is a bit of a mouthful, we bend the
+ * terminology a little and call this PL3.
+ *
+ * If access permissions for a register are more complex than can be
+ * described with these bits, then use a laxer set of restrictions, and
+ * do the more restrictive/complex check inside a helper function.
+ */
+#define PL3_R 0x80
+#define PL3_W 0x40
+#define PL2_R (0x20 | PL3_R)
+#define PL2_W (0x10 | PL3_W)
+#define PL1_R (0x08 | PL2_R)
+#define PL1_W (0x04 | PL2_W)
+#define PL0_R (0x02 | PL1_R)
+#define PL0_W (0x01 | PL1_W)
+
+#define PL3_RW (PL3_R | PL3_W)
+#define PL2_RW (PL2_R | PL2_W)
+#define PL1_RW (PL1_R | PL1_W)
+#define PL0_RW (PL0_R | PL0_W)
+
+static inline int arm_current_pl(CPUARMState *env)
+{
+ if ((env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR) {
+ return 0;
+ }
+ /* We don't currently implement the Virtualization or TrustZone
+ * extensions, so PL2 and PL3 don't exist for us.
+ */
+ return 1;
+}
+
+typedef struct ARMCPRegInfo ARMCPRegInfo;
+
+/* Access functions for coprocessor registers. These should return
+ * 0 on success, or one of the EXCP_* constants if access should cause
+ * an exception (in which case *value is not written).
+ */
+typedef int CPReadFn(CPUARMState *env, const ARMCPRegInfo *opaque,
+ uint64_t *value);
+typedef int CPWriteFn(CPUARMState *env, const ARMCPRegInfo *opaque,
+ uint64_t value);
+/* Hook function for register reset */
+typedef void CPResetFn(CPUARMState *env, const ARMCPRegInfo *opaque);
+
+#define CP_ANY 0xff
+
+/* Definition of an ARM coprocessor register */
+struct ARMCPRegInfo {
+ /* Name of register (useful mainly for debugging, need not be unique) */
+ const char *name;
+ /* Location of register: coprocessor number and (crn,crm,opc1,opc2)
+ * tuple. Any of crm, opc1 and opc2 may be CP_ANY to indicate a
+ * 'wildcard' field -- any value of that field in the MRC/MCR insn
+ * will be decoded to this register. The register read and write
+ * callbacks will be passed an ARMCPRegInfo with the crn/crm/opc1/opc2
+ * used by the program, so it is possible to register a wildcard and
+ * then behave differently on read/write if necessary.
+ * For 64 bit registers, only crm and opc1 are relevant; crn and opc2
+ * must both be zero.
+ */
+ uint8_t cp;
+ uint8_t crn;
+ uint8_t crm;
+ uint8_t opc1;
+ uint8_t opc2;
+ /* Register type: ARM_CP_* bits/values */
+ int type;
+ /* Access rights: PL*_[RW] */
+ int access;
+ /* The opaque pointer passed to define_arm_cp_regs_with_opaque() when
+ * this register was defined: can be used to hand data through to the
+ * register read/write functions, since they are passed the ARMCPRegInfo*.
+ */
+ void *opaque;
+ /* Value of this register, if it is ARM_CP_CONST. Otherwise, if
+ * fieldoffset is non-zero, the reset value of the register.
+ */
+ uint64_t resetvalue;
+ /* Offset of the field in CPUARMState for this register. This is not
+ * needed if either:
+ * 1. type is ARM_CP_CONST or one of the ARM_CP_SPECIALs
+ * 2. both readfn and writefn are specified
+ */
+ ptrdiff_t fieldoffset; /* offsetof(CPUARMState, field) */
+ /* Function for handling reads of this register. If NULL, then reads
+ * will be done by loading from the offset into CPUARMState specified
+ * by fieldoffset.
+ */
+ CPReadFn *readfn;
+ /* Function for handling writes of this register. If NULL, then writes
+ * will be done by writing to the offset into CPUARMState specified
+ * by fieldoffset.
+ */
+ CPWriteFn *writefn;
+ /* Function for resetting the register. If NULL, then reset will be done
+ * by writing resetvalue to the field specified in fieldoffset. If
+ * fieldoffset is 0 then no reset will be done.
+ */
+ CPResetFn *resetfn;
+};
+
+/* Macros which are lvalues for the field in CPUARMState for the
+ * ARMCPRegInfo *ri.
+ */
+#define CPREG_FIELD32(env, ri) \
+ (*(uint32_t *)((char *)(env) + (ri)->fieldoffset))
+#define CPREG_FIELD64(env, ri) \
+ (*(uint64_t *)((char *)(env) + (ri)->fieldoffset))
+
+#define REGINFO_SENTINEL { .type = ARM_CP_SENTINEL }
+
+void define_arm_cp_regs_with_opaque(ARMCPU *cpu,
+ const ARMCPRegInfo *regs, void *opaque);
+void define_one_arm_cp_reg_with_opaque(ARMCPU *cpu,
+ const ARMCPRegInfo *regs, void *opaque);
+static inline void define_arm_cp_regs(ARMCPU *cpu, const ARMCPRegInfo *regs)
+{
+ define_arm_cp_regs_with_opaque(cpu, regs, 0);
+}
+static inline void define_one_arm_cp_reg(ARMCPU *cpu, const ARMCPRegInfo *regs)
+{
+ define_one_arm_cp_reg_with_opaque(cpu, regs, 0);
+}
+const ARMCPRegInfo *get_arm_cp_reginfo(ARMCPU *cpu, uint32_t encoded_cp);
+
+/* CPWriteFn that can be used to implement writes-ignored behaviour */
+int arm_cp_write_ignore(CPUARMState *env, const ARMCPRegInfo *ri,
+ uint64_t value);
+/* CPReadFn that can be used for read-as-zero behaviour */
+int arm_cp_read_zero(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t *value);
+
+static inline bool cp_access_ok(CPUARMState *env,
+ const ARMCPRegInfo *ri, int isread)
+{
+ return (ri->access >> ((arm_current_pl(env) * 2) + isread)) & 1;
+}
/* Does the core conform to the the "MicroController" profile. e.g. Cortex-M3.
Note the M in older cores (eg. ARM7TDMI) stands for Multiply. These are
conventional cores (ie. Application or Realtime profile). */
#define IS_M(env) arm_feature(env, ARM_FEATURE_M)
-#define ARM_CPUID(env) (env->cp15.c0_cpuid)
-#define ARM_CPUID_ARM1026 0x4106a262
-#define ARM_CPUID_ARM926 0x41069265
-#define ARM_CPUID_ARM946 0x41059461
#define ARM_CPUID_TI915T 0x54029152
#define ARM_CPUID_TI925T 0x54029252
-#define ARM_CPUID_SA1100 0x4401A11B
-#define ARM_CPUID_SA1110 0x6901B119
-#define ARM_CPUID_PXA250 0x69052100
-#define ARM_CPUID_PXA255 0x69052d00
-#define ARM_CPUID_PXA260 0x69052903
-#define ARM_CPUID_PXA261 0x69052d05
-#define ARM_CPUID_PXA262 0x69052d06
-#define ARM_CPUID_PXA270 0x69054110
-#define ARM_CPUID_PXA270_A0 0x69054110
-#define ARM_CPUID_PXA270_A1 0x69054111
-#define ARM_CPUID_PXA270_B0 0x69054112
-#define ARM_CPUID_PXA270_B1 0x69054113
-#define ARM_CPUID_PXA270_C0 0x69054114
-#define ARM_CPUID_PXA270_C5 0x69054117
-#define ARM_CPUID_ARM1136 0x4117b363
-#define ARM_CPUID_ARM1136_R2 0x4107b362
-#define ARM_CPUID_ARM1176 0x410fb767
-#define ARM_CPUID_ARM11MPCORE 0x410fb022
-#define ARM_CPUID_CORTEXA8 0x410fc080
-#define ARM_CPUID_CORTEXA9 0x410fc090
-#define ARM_CPUID_CORTEXA15 0x412fc0f1
-#define ARM_CPUID_CORTEXM3 0x410fc231
-#define ARM_CPUID_ANY 0xffffffff
#if defined(CONFIG_USER_ONLY)
#define TARGET_PAGE_BITS 12
#define TARGET_PAGE_BITS 10
#endif
-#define TARGET_PHYS_ADDR_SPACE_BITS 32
+#define TARGET_PHYS_ADDR_SPACE_BITS 40
#define TARGET_VIRT_ADDR_SPACE_BITS 32
-#define cpu_init(model) (&cpu_arm_init(model)->env)
+static inline CPUARMState *cpu_init(const char *cpu_model)
+{
+ ARMCPU *cpu = cpu_arm_init(cpu_model);
+ if (cpu) {
+ return &cpu->env;
+ }
+ return NULL;
+}
+
#define cpu_exec cpu_arm_exec
#define cpu_gen_code cpu_arm_gen_code
#define cpu_signal_handler cpu_arm_signal_handler
#define cpu_list arm_cpu_list
-#define CPU_SAVE_VERSION 6
-
/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _kernel
#define MMU_MODE1_SUFFIX _user
}
#endif
-#include "cpu-all.h"
+#include "exec/cpu-all.h"
/* Bit usage in the TB flags field: */
#define ARM_TBFLAG_THUMB_SHIFT 0
}
}
-static inline bool cpu_has_work(CPUARMState *env)
+static inline bool cpu_has_work(CPUState *cpu)
{
- return env->interrupt_request &
+ return cpu->interrupt_request &
(CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD | CPU_INTERRUPT_EXITTB);
}
-#include "exec-all.h"
+#include "exec/exec-all.h"
static inline void cpu_pc_from_tb(CPUARMState *env, TranslationBlock *tb)
{
}
/* Load an instruction and return it in the standard little-endian order */
-static inline uint32_t arm_ldl_code(uint32_t addr, bool do_swap)
+static inline uint32_t arm_ldl_code(CPUARMState *env, uint32_t addr,
+ bool do_swap)
{
- uint32_t insn = ldl_code(addr);
+ uint32_t insn = cpu_ldl_code(env, addr);
if (do_swap) {
return bswap32(insn);
}
}
/* Ditto, for a halfword (Thumb) instruction */
-static inline uint16_t arm_lduw_code(uint32_t addr, bool do_swap)
+static inline uint16_t arm_lduw_code(CPUARMState *env, uint32_t addr,
+ bool do_swap)
{
- uint16_t insn = lduw_code(addr);
+ uint16_t insn = cpu_lduw_code(env, addr);
if (do_swap) {
return bswap16(insn);
}
projects / qemu.git / blobdiff