EC_FPIDTRAP = 0x08,
EC_PACTRAP = 0x09,
EC_CP14RRTTRAP = 0x0c,
+ EC_BTITRAP = 0x0d,
EC_ILLEGALSTATE = 0x0e,
EC_AA32_SVC = 0x11,
EC_AA32_HVC = 0x12,
return EC_PACTRAP << ARM_EL_EC_SHIFT;
}
+static inline uint32_t syn_btitrap(int btype)
+{
+ return (EC_BTITRAP << ARM_EL_EC_SHIFT) | btype;
+}
+
static inline uint32_t syn_insn_abort(int same_el, int ea, int s1ptw, int fsc)
{
return (EC_INSNABORT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT)
/* Callback function for when a watchpoint or breakpoint triggers. */
void arm_debug_excp_handler(CPUState *cs);
-#ifdef CONFIG_USER_ONLY
+#if defined(CONFIG_USER_ONLY) || !defined(CONFIG_TCG)
static inline bool arm_is_psci_call(ARMCPU *cpu, int excp_type)
{
return false;
}
+static inline void arm_handle_psci_call(ARMCPU *cpu)
+{
+ g_assert_not_reached();
+}
#else
/* Return true if the r0/x0 value indicates that this SMC/HVC is a PSCI call. */
bool arm_is_psci_call(ARMCPU *cpu, int excp_type);
return result != MEMTX_DECODE_ERROR;
}
-/* Do a page table walk and add page to TLB if possible */
-bool arm_tlb_fill(CPUState *cpu, vaddr address,
- MMUAccessType access_type, int mmu_idx,
- ARMMMUFaultInfo *fi);
+bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
+ MMUAccessType access_type, int mmu_idx,
+ bool probe, uintptr_t retaddr);
+
+static inline int arm_to_core_mmu_idx(ARMMMUIdx mmu_idx)
+{
+ return mmu_idx & ARM_MMU_IDX_COREIDX_MASK;
+}
+
+static inline ARMMMUIdx core_to_arm_mmu_idx(CPUARMState *env, int mmu_idx)
+{
+ if (arm_feature(env, ARM_FEATURE_M)) {
+ return mmu_idx | ARM_MMU_IDX_M;
+ } else {
+ return mmu_idx | ARM_MMU_IDX_A;
+ }
+}
+
+static inline ARMMMUIdx core_to_aa64_mmu_idx(int mmu_idx)
+{
+ /* AArch64 is always a-profile. */
+ return mmu_idx | ARM_MMU_IDX_A;
+}
+
+int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx);
+
+/*
+ * Return the MMU index for a v7M CPU with all relevant information
+ * manually specified.
+ */
+ARMMMUIdx arm_v7m_mmu_idx_all(CPUARMState *env,
+ bool secstate, bool priv, bool negpri);
+
+/*
+ * Return the MMU index for a v7M CPU in the specified security and
+ * privilege state.
+ */
+ARMMMUIdx arm_v7m_mmu_idx_for_secstate_and_priv(CPUARMState *env,
+ bool secstate, bool priv);
+
+/* Return the MMU index for a v7M CPU in the specified security state */
+ARMMMUIdx arm_v7m_mmu_idx_for_secstate(CPUARMState *env, bool secstate);
/* Return true if the stage 1 translation regime is using LPAE format page
* tables */
}
}
+/* Return true if this address translation regime has two ranges. */
+static inline bool regime_has_2_ranges(ARMMMUIdx mmu_idx)
+{
+ switch (mmu_idx) {
+ case ARMMMUIdx_Stage1_E0:
+ case ARMMMUIdx_Stage1_E1:
+ case ARMMMUIdx_Stage1_E1_PAN:
+ case ARMMMUIdx_E10_0:
+ case ARMMMUIdx_E10_1:
+ case ARMMMUIdx_E10_1_PAN:
+ case ARMMMUIdx_E20_0:
+ case ARMMMUIdx_E20_2:
+ case ARMMMUIdx_E20_2_PAN:
+ case ARMMMUIdx_SE10_0:
+ case ARMMMUIdx_SE10_1:
+ case ARMMMUIdx_SE10_1_PAN:
+ return true;
+ default:
+ return false;
+ }
+}
+
/* Return true if this address translation regime is secure */
static inline bool regime_is_secure(CPUARMState *env, ARMMMUIdx mmu_idx)
{
switch (mmu_idx) {
- case ARMMMUIdx_S12NSE0:
- case ARMMMUIdx_S12NSE1:
- case ARMMMUIdx_S1NSE0:
- case ARMMMUIdx_S1NSE1:
- case ARMMMUIdx_S1E2:
- case ARMMMUIdx_S2NS:
+ case ARMMMUIdx_E10_0:
+ case ARMMMUIdx_E10_1:
+ case ARMMMUIdx_E10_1_PAN:
+ case ARMMMUIdx_E20_0:
+ case ARMMMUIdx_E20_2:
+ case ARMMMUIdx_E20_2_PAN:
+ case ARMMMUIdx_Stage1_E0:
+ case ARMMMUIdx_Stage1_E1:
+ case ARMMMUIdx_Stage1_E1_PAN:
+ case ARMMMUIdx_E2:
+ case ARMMMUIdx_Stage2:
case ARMMMUIdx_MPrivNegPri:
case ARMMMUIdx_MUserNegPri:
case ARMMMUIdx_MPriv:
case ARMMMUIdx_MUser:
return false;
- case ARMMMUIdx_S1E3:
- case ARMMMUIdx_S1SE0:
- case ARMMMUIdx_S1SE1:
+ case ARMMMUIdx_SE3:
+ case ARMMMUIdx_SE10_0:
+ case ARMMMUIdx_SE10_1:
+ case ARMMMUIdx_SE10_1_PAN:
case ARMMMUIdx_MSPrivNegPri:
case ARMMMUIdx_MSUserNegPri:
case ARMMMUIdx_MSPriv:
}
}
+static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx)
+{
+ switch (mmu_idx) {
+ case ARMMMUIdx_Stage1_E1_PAN:
+ case ARMMMUIdx_E10_1_PAN:
+ case ARMMMUIdx_E20_2_PAN:
+ case ARMMMUIdx_SE10_1_PAN:
+ return true;
+ default:
+ return false;
+ }
+}
+
/* Return the FSR value for a debug exception (watchpoint, hardware
* breakpoint or BKPT insn) targeting the specified exception level.
*/
}
}
+/**
+ * arm_num_brps: Return number of implemented breakpoints.
+ * Note that the ID register BRPS field is "number of bps - 1",
+ * and we return the actual number of breakpoints.
+ */
+static inline int arm_num_brps(ARMCPU *cpu)
+{
+ if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
+ return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, BRPS) + 1;
+ } else {
+ return FIELD_EX32(cpu->isar.dbgdidr, DBGDIDR, BRPS) + 1;
+ }
+}
+
+/**
+ * arm_num_wrps: Return number of implemented watchpoints.
+ * Note that the ID register WRPS field is "number of wps - 1",
+ * and we return the actual number of watchpoints.
+ */
+static inline int arm_num_wrps(ARMCPU *cpu)
+{
+ if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
+ return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, WRPS) + 1;
+ } else {
+ return FIELD_EX32(cpu->isar.dbgdidr, DBGDIDR, WRPS) + 1;
+ }
+}
+
+/**
+ * arm_num_ctx_cmps: Return number of implemented context comparators.
+ * Note that the ID register CTX_CMPS field is "number of cmps - 1",
+ * and we return the actual number of comparators.
+ */
+static inline int arm_num_ctx_cmps(ARMCPU *cpu)
+{
+ if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
+ return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, CTX_CMPS) + 1;
+ } else {
+ return FIELD_EX32(cpu->isar.dbgdidr, DBGDIDR, CTX_CMPS) + 1;
+ }
+}
+
/* Note make_memop_idx reserves 4 bits for mmu_idx, and MO_BSWAP is bit 3.
* Thus a TCGMemOpIdx, without any MO_ALIGN bits, fits in 8 bits.
*/
}
}
+/**
+ * v7m_cpacr_pass:
+ * Return true if the v7M CPACR permits access to the FPU for the specified
+ * security state and privilege level.
+ */
+static inline bool v7m_cpacr_pass(CPUARMState *env,
+ bool is_secure, bool is_priv)
+{
+ switch (extract32(env->v7m.cpacr[is_secure], 20, 2)) {
+ case 0:
+ case 2: /* UNPREDICTABLE: we treat like 0 */
+ return false;
+ case 1:
+ return is_priv;
+ case 3:
+ return true;
+ default:
+ g_assert_not_reached();
+ }
+}
+
/**
* aarch32_mode_name(): Return name of the AArch32 CPU mode
* @psr: Program Status Register indicating CPU mode
*/
void arm_cpu_update_vfiq(ARMCPU *cpu);
+/**
+ * arm_mmu_idx_el:
+ * @env: The cpu environment
+ * @el: The EL to use.
+ *
+ * Return the full ARMMMUIdx for the translation regime for EL.
+ */
+ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el);
+
/**
* arm_mmu_idx:
* @env: The cpu environment
#ifdef CONFIG_USER_ONLY
static inline ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env)
{
- return ARMMMUIdx_S1NSE0;
+ return ARMMMUIdx_Stage1_E0;
}
#else
ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env);
#endif
+/**
+ * arm_mmu_idx_is_stage1_of_2:
+ * @mmu_idx: The ARMMMUIdx to test
+ *
+ * Return true if @mmu_idx is a NOTLB mmu_idx that is the
+ * first stage of a two stage regime.
+ */
+static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx)
+{
+ switch (mmu_idx) {
+ case ARMMMUIdx_Stage1_E0:
+ case ARMMMUIdx_Stage1_E1:
+ case ARMMMUIdx_Stage1_E1_PAN:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static inline uint32_t aarch32_cpsr_valid_mask(uint64_t features,
+ const ARMISARegisters *id)
+{
+ uint32_t valid = CPSR_M | CPSR_AIF | CPSR_IL | CPSR_NZCV;
+
+ if ((features >> ARM_FEATURE_V4T) & 1) {
+ valid |= CPSR_T;
+ }
+ if ((features >> ARM_FEATURE_V5) & 1) {
+ valid |= CPSR_Q; /* V5TE in reality*/
+ }
+ if ((features >> ARM_FEATURE_V6) & 1) {
+ valid |= CPSR_E | CPSR_GE;
+ }
+ if ((features >> ARM_FEATURE_THUMB2) & 1) {
+ valid |= CPSR_IT;
+ }
+ if (isar_feature_aa32_jazelle(id)) {
+ valid |= CPSR_J;
+ }
+ if (isar_feature_aa32_pan(id)) {
+ valid |= CPSR_PAN;
+ }
+
+ return valid;
+}
+
+static inline uint32_t aarch64_pstate_valid_mask(const ARMISARegisters *id)
+{
+ uint32_t valid;
+
+ valid = PSTATE_M | PSTATE_DAIF | PSTATE_IL | PSTATE_SS | PSTATE_NZCV;
+ if (isar_feature_aa64_bti(id)) {
+ valid |= PSTATE_BTYPE;
+ }
+ if (isar_feature_aa64_pan(id)) {
+ valid |= PSTATE_PAN;
+ }
+ if (isar_feature_aa64_uao(id)) {
+ valid |= PSTATE_UAO;
+ }
+
+ return valid;
+}
+
/*
* Parameters of a given virtual address, as extracted from the
* translation control register (TCR) for a given regime.
unsigned tsz : 8;
unsigned select : 1;
bool tbi : 1;
- bool tbid : 1;
bool epd : 1;
bool hpd : 1;
bool using16k : 1;
bool using64k : 1;
} ARMVAParameters;
-#ifdef CONFIG_USER_ONLY
-static inline ARMVAParameters aa64_va_parameters_both(CPUARMState *env,
- uint64_t va,
- ARMMMUIdx mmu_idx)
-{
- return (ARMVAParameters) {
- /* 48-bit address space */
- .tsz = 16,
- /* We can't handle tagged addresses properly in user-only mode */
- .tbi = false,
- };
-}
+ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va,
+ ARMMMUIdx mmu_idx, bool data);
-static inline ARMVAParameters aa64_va_parameters(CPUARMState *env,
- uint64_t va,
- ARMMMUIdx mmu_idx, bool data)
+static inline int exception_target_el(CPUARMState *env)
{
- return aa64_va_parameters_both(env, va, mmu_idx);
+ int target_el = MAX(1, arm_current_el(env));
+
+ /*
+ * No such thing as secure EL1 if EL3 is aarch32,
+ * so update the target EL to EL3 in this case.
+ */
+ if (arm_is_secure(env) && !arm_el_is_aa64(env, 3) && target_el == 1) {
+ target_el = 3;
+ }
+
+ return target_el;
}
-#else
-ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va,
- ARMMMUIdx mmu_idx);
-ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va,
- ARMMMUIdx mmu_idx, bool data);
-#endif
+
+#ifndef CONFIG_USER_ONLY
+
+/* Security attributes for an address, as returned by v8m_security_lookup. */
+typedef struct V8M_SAttributes {
+ bool subpage; /* true if these attrs don't cover the whole TARGET_PAGE */
+ bool ns;
+ bool nsc;
+ uint8_t sregion;
+ bool srvalid;
+ uint8_t iregion;
+ bool irvalid;
+} V8M_SAttributes;
+
+void v8m_security_lookup(CPUARMState *env, uint32_t address,
+ MMUAccessType access_type, ARMMMUIdx mmu_idx,
+ V8M_SAttributes *sattrs);
+
+bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
+ MMUAccessType access_type, ARMMMUIdx mmu_idx,
+ hwaddr *phys_ptr, MemTxAttrs *txattrs,
+ int *prot, bool *is_subpage,
+ ARMMMUFaultInfo *fi, uint32_t *mregion);
+
+/* Cacheability and shareability attributes for a memory access */
+typedef struct ARMCacheAttrs {
+ unsigned int attrs:8; /* as in the MAIR register encoding */
+ unsigned int shareability:2; /* as in the SH field of the VMSAv8-64 PTEs */
+} ARMCacheAttrs;
+
+bool get_phys_addr(CPUARMState *env, target_ulong address,
+ MMUAccessType access_type, ARMMMUIdx mmu_idx,
+ hwaddr *phys_ptr, MemTxAttrs *attrs, int *prot,
+ target_ulong *page_size,
+ ARMMMUFaultInfo *fi, ARMCacheAttrs *cacheattrs);
+
+void arm_log_exception(int idx);
+
+#endif /* !CONFIG_USER_ONLY */
#endif
projects / mirror_qemu.git / blobdiff