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-rw-r--r--target/arm/internals.h879
1 files changed, 674 insertions, 205 deletions
diff --git a/target/arm/internals.h b/target/arm/internals.h
index 9fbb364968..dd3da211a3 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -28,6 +28,7 @@
#include "hw/registerfields.h"
#include "tcg/tcg-gvec-desc.h"
#include "syndrome.h"
+#include "cpu-features.h"
/* register banks for CPU modes */
#define BANK_USRSYS 0
@@ -39,6 +40,11 @@
#define BANK_HYP 6
#define BANK_MON 7
+static inline int arm_env_mmu_index(CPUARMState *env)
+{
+ return EX_TBFLAG_ANY(env->hflags, MMUIDX);
+}
+
static inline bool excp_is_internal(int excp)
{
/* Return true if this exception number represents a QEMU-internal
@@ -81,6 +87,169 @@ FIELD(V7M_EXCRET, RES1, 7, 25) /* including the must-be-1 prefix */
*/
#define FNC_RETURN_MIN_MAGIC 0xfefffffe
+/* Bit definitions for DBGWCRn and DBGWCRn_EL1 */
+FIELD(DBGWCR, E, 0, 1)
+FIELD(DBGWCR, PAC, 1, 2)
+FIELD(DBGWCR, LSC, 3, 2)
+FIELD(DBGWCR, BAS, 5, 8)
+FIELD(DBGWCR, HMC, 13, 1)
+FIELD(DBGWCR, SSC, 14, 2)
+FIELD(DBGWCR, LBN, 16, 4)
+FIELD(DBGWCR, WT, 20, 1)
+FIELD(DBGWCR, MASK, 24, 5)
+FIELD(DBGWCR, SSCE, 29, 1)
+
+#define VTCR_NSW (1u << 29)
+#define VTCR_NSA (1u << 30)
+#define VSTCR_SW VTCR_NSW
+#define VSTCR_SA VTCR_NSA
+
+/* Bit definitions for CPACR (AArch32 only) */
+FIELD(CPACR, CP10, 20, 2)
+FIELD(CPACR, CP11, 22, 2)
+FIELD(CPACR, TRCDIS, 28, 1) /* matches CPACR_EL1.TTA */
+FIELD(CPACR, D32DIS, 30, 1) /* up to v7; RAZ in v8 */
+FIELD(CPACR, ASEDIS, 31, 1)
+
+/* Bit definitions for CPACR_EL1 (AArch64 only) */
+FIELD(CPACR_EL1, ZEN, 16, 2)
+FIELD(CPACR_EL1, FPEN, 20, 2)
+FIELD(CPACR_EL1, SMEN, 24, 2)
+FIELD(CPACR_EL1, TTA, 28, 1) /* matches CPACR.TRCDIS */
+
+/* Bit definitions for HCPTR (AArch32 only) */
+FIELD(HCPTR, TCP10, 10, 1)
+FIELD(HCPTR, TCP11, 11, 1)
+FIELD(HCPTR, TASE, 15, 1)
+FIELD(HCPTR, TTA, 20, 1)
+FIELD(HCPTR, TAM, 30, 1) /* matches CPTR_EL2.TAM */
+FIELD(HCPTR, TCPAC, 31, 1) /* matches CPTR_EL2.TCPAC */
+
+/* Bit definitions for CPTR_EL2 (AArch64 only) */
+FIELD(CPTR_EL2, TZ, 8, 1) /* !E2H */
+FIELD(CPTR_EL2, TFP, 10, 1) /* !E2H, matches HCPTR.TCP10 */
+FIELD(CPTR_EL2, TSM, 12, 1) /* !E2H */
+FIELD(CPTR_EL2, ZEN, 16, 2) /* E2H */
+FIELD(CPTR_EL2, FPEN, 20, 2) /* E2H */
+FIELD(CPTR_EL2, SMEN, 24, 2) /* E2H */
+FIELD(CPTR_EL2, TTA, 28, 1)
+FIELD(CPTR_EL2, TAM, 30, 1) /* matches HCPTR.TAM */
+FIELD(CPTR_EL2, TCPAC, 31, 1) /* matches HCPTR.TCPAC */
+
+/* Bit definitions for CPTR_EL3 (AArch64 only) */
+FIELD(CPTR_EL3, EZ, 8, 1)
+FIELD(CPTR_EL3, TFP, 10, 1)
+FIELD(CPTR_EL3, ESM, 12, 1)
+FIELD(CPTR_EL3, TTA, 20, 1)
+FIELD(CPTR_EL3, TAM, 30, 1)
+FIELD(CPTR_EL3, TCPAC, 31, 1)
+
+#define MDCR_MTPME (1U << 28)
+#define MDCR_TDCC (1U << 27)
+#define MDCR_HLP (1U << 26) /* MDCR_EL2 */
+#define MDCR_SCCD (1U << 23) /* MDCR_EL3 */
+#define MDCR_HCCD (1U << 23) /* MDCR_EL2 */
+#define MDCR_EPMAD (1U << 21)
+#define MDCR_EDAD (1U << 20)
+#define MDCR_TTRF (1U << 19)
+#define MDCR_STE (1U << 18) /* MDCR_EL3 */
+#define MDCR_SPME (1U << 17) /* MDCR_EL3 */
+#define MDCR_HPMD (1U << 17) /* MDCR_EL2 */
+#define MDCR_SDD (1U << 16)
+#define MDCR_SPD (3U << 14)
+#define MDCR_TDRA (1U << 11)
+#define MDCR_TDOSA (1U << 10)
+#define MDCR_TDA (1U << 9)
+#define MDCR_TDE (1U << 8)
+#define MDCR_HPME (1U << 7)
+#define MDCR_TPM (1U << 6)
+#define MDCR_TPMCR (1U << 5)
+#define MDCR_HPMN (0x1fU)
+
+/* Not all of the MDCR_EL3 bits are present in the 32-bit SDCR */
+#define SDCR_VALID_MASK (MDCR_MTPME | MDCR_TDCC | MDCR_SCCD | \
+ MDCR_EPMAD | MDCR_EDAD | MDCR_TTRF | \
+ MDCR_STE | MDCR_SPME | MDCR_SPD)
+
+#define TTBCR_N (7U << 0) /* TTBCR.EAE==0 */
+#define TTBCR_T0SZ (7U << 0) /* TTBCR.EAE==1 */
+#define TTBCR_PD0 (1U << 4)
+#define TTBCR_PD1 (1U << 5)
+#define TTBCR_EPD0 (1U << 7)
+#define TTBCR_IRGN0 (3U << 8)
+#define TTBCR_ORGN0 (3U << 10)
+#define TTBCR_SH0 (3U << 12)
+#define TTBCR_T1SZ (3U << 16)
+#define TTBCR_A1 (1U << 22)
+#define TTBCR_EPD1 (1U << 23)
+#define TTBCR_IRGN1 (3U << 24)
+#define TTBCR_ORGN1 (3U << 26)
+#define TTBCR_SH1 (1U << 28)
+#define TTBCR_EAE (1U << 31)
+
+FIELD(VTCR, T0SZ, 0, 6)
+FIELD(VTCR, SL0, 6, 2)
+FIELD(VTCR, IRGN0, 8, 2)
+FIELD(VTCR, ORGN0, 10, 2)
+FIELD(VTCR, SH0, 12, 2)
+FIELD(VTCR, TG0, 14, 2)
+FIELD(VTCR, PS, 16, 3)
+FIELD(VTCR, VS, 19, 1)
+FIELD(VTCR, HA, 21, 1)
+FIELD(VTCR, HD, 22, 1)
+FIELD(VTCR, HWU59, 25, 1)
+FIELD(VTCR, HWU60, 26, 1)
+FIELD(VTCR, HWU61, 27, 1)
+FIELD(VTCR, HWU62, 28, 1)
+FIELD(VTCR, NSW, 29, 1)
+FIELD(VTCR, NSA, 30, 1)
+FIELD(VTCR, DS, 32, 1)
+FIELD(VTCR, SL2, 33, 1)
+
+#define HCRX_ENAS0 (1ULL << 0)
+#define HCRX_ENALS (1ULL << 1)
+#define HCRX_ENASR (1ULL << 2)
+#define HCRX_FNXS (1ULL << 3)
+#define HCRX_FGTNXS (1ULL << 4)
+#define HCRX_SMPME (1ULL << 5)
+#define HCRX_TALLINT (1ULL << 6)
+#define HCRX_VINMI (1ULL << 7)
+#define HCRX_VFNMI (1ULL << 8)
+#define HCRX_CMOW (1ULL << 9)
+#define HCRX_MCE2 (1ULL << 10)
+#define HCRX_MSCEN (1ULL << 11)
+
+#define HPFAR_NS (1ULL << 63)
+
+#define HSTR_TTEE (1 << 16)
+#define HSTR_TJDBX (1 << 17)
+
+/*
+ * Depending on the value of HCR_EL2.E2H, bits 0 and 1
+ * have different bit definitions, and EL1PCTEN might be
+ * bit 0 or bit 10. We use _E2H1 and _E2H0 suffixes to
+ * disambiguate if necessary.
+ */
+FIELD(CNTHCTL, EL0PCTEN_E2H1, 0, 1)
+FIELD(CNTHCTL, EL0VCTEN_E2H1, 1, 1)
+FIELD(CNTHCTL, EL1PCTEN_E2H0, 0, 1)
+FIELD(CNTHCTL, EL1PCEN_E2H0, 1, 1)
+FIELD(CNTHCTL, EVNTEN, 2, 1)
+FIELD(CNTHCTL, EVNTDIR, 3, 1)
+FIELD(CNTHCTL, EVNTI, 4, 4)
+FIELD(CNTHCTL, EL0VTEN, 8, 1)
+FIELD(CNTHCTL, EL0PTEN, 9, 1)
+FIELD(CNTHCTL, EL1PCTEN_E2H1, 10, 1)
+FIELD(CNTHCTL, EL1PTEN, 11, 1)
+FIELD(CNTHCTL, ECV, 12, 1)
+FIELD(CNTHCTL, EL1TVT, 13, 1)
+FIELD(CNTHCTL, EL1TVCT, 14, 1)
+FIELD(CNTHCTL, EL1NVPCT, 15, 1)
+FIELD(CNTHCTL, EL1NVVCT, 16, 1)
+FIELD(CNTHCTL, EVNTIS, 17, 1)
+FIELD(CNTHCTL, CNTVMASK, 18, 1)
+FIELD(CNTHCTL, CNTPMASK, 19, 1)
+
/* We use a few fake FSR values for internal purposes in M profile.
* M profile cores don't have A/R format FSRs, but currently our
* get_phys_addr() code assumes A/R profile and reports failures via
@@ -102,13 +271,13 @@ FIELD(V7M_EXCRET, RES1, 7, 25) /* including the must-be-1 prefix */
* and target exception level. This should be called from helper functions,
* and never returns because we will longjump back up to the CPU main loop.
*/
-void QEMU_NORETURN raise_exception(CPUARMState *env, uint32_t excp,
- uint32_t syndrome, uint32_t target_el);
+G_NORETURN void raise_exception(CPUARMState *env, uint32_t excp,
+ uint32_t syndrome, uint32_t target_el);
/*
* Similarly, but also use unwinding to restore cpu state.
*/
-void QEMU_NORETURN raise_exception_ra(CPUARMState *env, uint32_t excp,
+G_NORETURN void raise_exception_ra(CPUARMState *env, uint32_t excp,
uint32_t syndrome, uint32_t target_el,
uintptr_t ra);
@@ -170,34 +339,39 @@ static inline int r14_bank_number(int mode)
return (mode == ARM_CPU_MODE_HYP) ? BANK_USRSYS : bank_number(mode);
}
+void arm_cpu_register(const ARMCPUInfo *info);
+void aarch64_cpu_register(const ARMCPUInfo *info);
+
+void register_cp_regs_for_features(ARMCPU *cpu);
+void init_cpreg_list(ARMCPU *cpu);
+
void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu);
void arm_translate_init(void);
+void arm_restore_state_to_opc(CPUState *cs,
+ const TranslationBlock *tb,
+ const uint64_t *data);
+
#ifdef CONFIG_TCG
void arm_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb);
#endif /* CONFIG_TCG */
-/**
- * aarch64_sve_zcr_get_valid_len:
- * @cpu: cpu context
- * @start_len: maximum len to consider
- *
- * Return the maximum supported sve vector length <= @start_len.
- * Note that both @start_len and the return value are in units
- * of ZCR_ELx.LEN, so the vector bit length is (x + 1) * 128.
- */
-uint32_t aarch64_sve_zcr_get_valid_len(ARMCPU *cpu, uint32_t start_len);
-
-enum arm_fprounding {
+typedef enum ARMFPRounding {
FPROUNDING_TIEEVEN,
FPROUNDING_POSINF,
FPROUNDING_NEGINF,
FPROUNDING_ZERO,
FPROUNDING_TIEAWAY,
FPROUNDING_ODD
-};
+} ARMFPRounding;
+
+extern const FloatRoundMode arm_rmode_to_sf_map[6];
-int arm_rmode_to_sf(int rmode);
+static inline FloatRoundMode arm_rmode_to_sf(ARMFPRounding rmode)
+{
+ assert((unsigned)rmode < ARRAY_SIZE(arm_rmode_to_sf_map));
+ return arm_rmode_to_sf_map[rmode];
+}
static inline void aarch64_save_sp(CPUARMState *env, int el)
{
@@ -243,24 +417,7 @@ static inline void update_spsel(CPUARMState *env, uint32_t imm)
* Returns the implementation defined bit-width of physical addresses.
* The ARMv8 reference manuals refer to this as PAMax().
*/
-static inline unsigned int arm_pamax(ARMCPU *cpu)
-{
- static const unsigned int pamax_map[] = {
- [0] = 32,
- [1] = 36,
- [2] = 40,
- [3] = 42,
- [4] = 44,
- [5] = 48,
- };
- unsigned int parange =
- FIELD_EX64(cpu->isar.id_aa64mmfr0, ID_AA64MMFR0, PARANGE);
-
- /* id_aa64mmfr0 is a read-only register so values outside of the
- * supported mappings can be considered an implementation error. */
- assert(parange < ARRAY_SIZE(pamax_map));
- return pamax_map[parange];
-}
+unsigned int arm_pamax(ARMCPU *cpu);
/* Return true if extended addresses are enabled.
* This is always the case if our translation regime is 64 bit,
@@ -268,9 +425,13 @@ static inline unsigned int arm_pamax(ARMCPU *cpu)
*/
static inline bool extended_addresses_enabled(CPUARMState *env)
{
- TCR *tcr = &env->cp15.tcr_el[arm_is_secure(env) ? 3 : 1];
+ uint64_t tcr = env->cp15.tcr_el[arm_is_secure(env) ? 3 : 1];
+ if (arm_feature(env, ARM_FEATURE_PMSA) &&
+ arm_feature(env, ARM_FEATURE_V8)) {
+ return true;
+ }
return arm_el_is_aa64(env, 1) ||
- (arm_feature(env, ARM_FEATURE_LPAE) && (tcr->raw_tcr & TTBCR_EAE));
+ (arm_feature(env, ARM_FEATURE_LPAE) && (tcr & TTBCR_EAE));
}
/* Update a QEMU watchpoint based on the information the guest has set in the
@@ -354,19 +515,33 @@ typedef enum ARMFaultType {
ARMFault_AsyncExternal,
ARMFault_Debug,
ARMFault_TLBConflict,
+ ARMFault_UnsuppAtomicUpdate,
ARMFault_Lockdown,
ARMFault_Exclusive,
ARMFault_ICacheMaint,
ARMFault_QEMU_NSCExec, /* v8M: NS executing in S&NSC memory */
ARMFault_QEMU_SFault, /* v8M: SecureFault INVTRAN, INVEP or AUVIOL */
+ ARMFault_GPCFOnWalk,
+ ARMFault_GPCFOnOutput,
} ARMFaultType;
+typedef enum ARMGPCF {
+ GPCF_None,
+ GPCF_AddressSize,
+ GPCF_Walk,
+ GPCF_EABT,
+ GPCF_Fail,
+} ARMGPCF;
+
/**
* ARMMMUFaultInfo: Information describing an ARM MMU Fault
* @type: Type of fault
+ * @gpcf: Subtype of ARMFault_GPCFOn{Walk,Output}.
* @level: Table walk level (for translation, access flag and permission faults)
* @domain: Domain of the fault address (for non-LPAE CPUs only)
* @s2addr: Address that caused a fault at stage 2
+ * @paddr: physical address that caused a fault for gpc
+ * @paddr_space: physical address space that caused a fault for gpc
* @stage2: True if we faulted at stage 2
* @s1ptw: True if we faulted at stage 2 while doing a stage 1 page-table walk
* @s1ns: True if we faulted on a non-secure IPA while in secure state
@@ -375,7 +550,10 @@ typedef enum ARMFaultType {
typedef struct ARMMMUFaultInfo ARMMMUFaultInfo;
struct ARMMMUFaultInfo {
ARMFaultType type;
+ ARMGPCF gpcf;
target_ulong s2addr;
+ target_ulong paddr;
+ ARMSecuritySpace paddr_space;
int level;
int domain;
bool stage2;
@@ -479,28 +657,51 @@ static inline uint32_t arm_fi_to_lfsc(ARMMMUFaultInfo *fi)
case ARMFault_None:
return 0;
case ARMFault_AddressSize:
- fsc = fi->level & 3;
+ assert(fi->level >= -1 && fi->level <= 3);
+ if (fi->level < 0) {
+ fsc = 0b101001;
+ } else {
+ fsc = fi->level;
+ }
break;
case ARMFault_AccessFlag:
- fsc = (fi->level & 3) | (0x2 << 2);
+ assert(fi->level >= 0 && fi->level <= 3);
+ fsc = 0b001000 | fi->level;
break;
case ARMFault_Permission:
- fsc = (fi->level & 3) | (0x3 << 2);
+ assert(fi->level >= 0 && fi->level <= 3);
+ fsc = 0b001100 | fi->level;
break;
case ARMFault_Translation:
- fsc = (fi->level & 3) | (0x1 << 2);
+ assert(fi->level >= -1 && fi->level <= 3);
+ if (fi->level < 0) {
+ fsc = 0b101011;
+ } else {
+ fsc = 0b000100 | fi->level;
+ }
break;
case ARMFault_SyncExternal:
fsc = 0x10 | (fi->ea << 12);
break;
case ARMFault_SyncExternalOnWalk:
- fsc = (fi->level & 3) | (0x5 << 2) | (fi->ea << 12);
+ assert(fi->level >= -1 && fi->level <= 3);
+ if (fi->level < 0) {
+ fsc = 0b010011;
+ } else {
+ fsc = 0b010100 | fi->level;
+ }
+ fsc |= fi->ea << 12;
break;
case ARMFault_SyncParity:
fsc = 0x18;
break;
case ARMFault_SyncParityOnWalk:
- fsc = (fi->level & 3) | (0x7 << 2);
+ assert(fi->level >= -1 && fi->level <= 3);
+ if (fi->level < 0) {
+ fsc = 0b011011;
+ } else {
+ fsc = 0b011100 | fi->level;
+ }
break;
case ARMFault_AsyncParity:
fsc = 0x19;
@@ -517,12 +718,26 @@ static inline uint32_t arm_fi_to_lfsc(ARMMMUFaultInfo *fi)
case ARMFault_TLBConflict:
fsc = 0x30;
break;
+ case ARMFault_UnsuppAtomicUpdate:
+ fsc = 0x31;
+ break;
case ARMFault_Lockdown:
fsc = 0x34;
break;
case ARMFault_Exclusive:
fsc = 0x35;
break;
+ case ARMFault_GPCFOnWalk:
+ assert(fi->level >= -1 && fi->level <= 3);
+ if (fi->level < 0) {
+ fsc = 0b100011;
+ } else {
+ fsc = 0b100100 | fi->level;
+ }
+ break;
+ case ARMFault_GPCFOnOutput:
+ fsc = 0b101000;
+ break;
default:
/* Other faults can't occur in a context that requires a
* long-format status code.
@@ -544,9 +759,17 @@ static inline bool arm_extabort_type(MemTxResult result)
return result != MEMTX_DECODE_ERROR;
}
+#ifdef CONFIG_USER_ONLY
+void arm_cpu_record_sigsegv(CPUState *cpu, vaddr addr,
+ MMUAccessType access_type,
+ bool maperr, uintptr_t ra);
+void arm_cpu_record_sigbus(CPUState *cpu, vaddr addr,
+ MMUAccessType access_type, uintptr_t ra);
+#else
bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
MMUAccessType access_type, int mmu_idx,
bool probe, uintptr_t retaddr);
+#endif
static inline int arm_to_core_mmu_idx(ARMMMUIdx mmu_idx)
{
@@ -570,32 +793,21 @@ static inline ARMMMUIdx core_to_aa64_mmu_idx(int mmu_idx)
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 the stage 1 translation regime is using LPAE
+ * format page tables
+ */
bool arm_s1_regime_using_lpae_format(CPUARMState *env, ARMMMUIdx mmu_idx);
/* Raise a data fault alignment exception for the specified virtual address */
-void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr,
- MMUAccessType access_type,
- int mmu_idx, uintptr_t retaddr) QEMU_NORETURN;
+G_NORETURN void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr,
+ MMUAccessType access_type,
+ int mmu_idx, uintptr_t retaddr);
+#ifndef CONFIG_USER_ONLY
/* arm_cpu_do_transaction_failed: handle a memory system error response
* (eg "no device/memory present at address") by raising an external abort
* exception
@@ -605,6 +817,7 @@ void arm_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
MMUAccessType access_type,
int mmu_idx, MemTxAttrs attrs,
MemTxResult response, uintptr_t retaddr);
+#endif
/* Call any registered EL change hooks */
static inline void arm_call_pre_el_change_hook(ARMCPU *cpu)
@@ -629,112 +842,53 @@ static inline bool regime_has_2_ranges(ARMMMUIdx mmu_idx)
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_Stage1_E1:
case ARMMMUIdx_Stage1_E1_PAN:
- case ARMMMUIdx_Stage1_SE0:
- case ARMMMUIdx_Stage1_SE1:
- case ARMMMUIdx_Stage1_SE1_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:
- case ARMMMUIdx_SE20_0:
- case ARMMMUIdx_SE20_2:
- case ARMMMUIdx_SE20_2_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_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_SE3:
- case ARMMMUIdx_SE10_0:
- case ARMMMUIdx_SE10_1:
- case ARMMMUIdx_SE10_1_PAN:
- case ARMMMUIdx_SE20_0:
- case ARMMMUIdx_SE20_2:
- case ARMMMUIdx_SE20_2_PAN:
- case ARMMMUIdx_Stage1_SE0:
- case ARMMMUIdx_Stage1_SE1:
- case ARMMMUIdx_Stage1_SE1_PAN:
- case ARMMMUIdx_SE2:
- case ARMMMUIdx_Stage2_S:
- case ARMMMUIdx_MSPrivNegPri:
- case ARMMMUIdx_MSUserNegPri:
- case ARMMMUIdx_MSPriv:
- case ARMMMUIdx_MSUser:
- return true;
- default:
- g_assert_not_reached();
- }
-}
-
static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx)
{
switch (mmu_idx) {
case ARMMMUIdx_Stage1_E1_PAN:
- case ARMMMUIdx_Stage1_SE1_PAN:
case ARMMMUIdx_E10_1_PAN:
case ARMMMUIdx_E20_2_PAN:
- case ARMMMUIdx_SE10_1_PAN:
- case ARMMMUIdx_SE20_2_PAN:
return true;
default:
return false;
}
}
+static inline bool regime_is_stage2(ARMMMUIdx mmu_idx)
+{
+ return mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S;
+}
+
/* Return the exception level which controls this address translation regime */
static inline uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx)
{
switch (mmu_idx) {
- case ARMMMUIdx_SE20_0:
- case ARMMMUIdx_SE20_2:
- case ARMMMUIdx_SE20_2_PAN:
case ARMMMUIdx_E20_0:
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
case ARMMMUIdx_Stage2:
case ARMMMUIdx_Stage2_S:
- case ARMMMUIdx_SE2:
case ARMMMUIdx_E2:
return 2;
- case ARMMMUIdx_SE3:
+ case ARMMMUIdx_E3:
return 3;
- case ARMMMUIdx_SE10_0:
- case ARMMMUIdx_Stage1_SE0:
- return arm_el_is_aa64(env, 3) ? 1 : 3;
- case ARMMMUIdx_SE10_1:
- case ARMMMUIdx_SE10_1_PAN:
+ case ARMMMUIdx_E10_0:
case ARMMMUIdx_Stage1_E0:
+ return arm_el_is_aa64(env, 3) || !arm_is_secure_below_el3(env) ? 1 : 3;
case ARMMMUIdx_Stage1_E1:
case ARMMMUIdx_Stage1_E1_PAN:
- case ARMMMUIdx_Stage1_SE1:
- case ARMMMUIdx_Stage1_SE1_PAN:
- case ARMMMUIdx_E10_0:
case ARMMMUIdx_E10_1:
case ARMMMUIdx_E10_1_PAN:
case ARMMMUIdx_MPrivNegPri:
@@ -751,45 +905,79 @@ static inline uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx)
}
}
-/* Return the TCR controlling this translation regime */
-static inline TCR *regime_tcr(CPUARMState *env, ARMMMUIdx mmu_idx)
+static inline bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx)
+{
+ switch (mmu_idx) {
+ case ARMMMUIdx_E20_0:
+ case ARMMMUIdx_Stage1_E0:
+ case ARMMMUIdx_MUser:
+ case ARMMMUIdx_MSUser:
+ case ARMMMUIdx_MUserNegPri:
+ case ARMMMUIdx_MSUserNegPri:
+ return true;
+ default:
+ return false;
+ case ARMMMUIdx_E10_0:
+ case ARMMMUIdx_E10_1:
+ case ARMMMUIdx_E10_1_PAN:
+ g_assert_not_reached();
+ }
+}
+
+/* Return the SCTLR value which controls this address translation regime */
+static inline uint64_t regime_sctlr(CPUARMState *env, ARMMMUIdx mmu_idx)
+{
+ return env->cp15.sctlr_el[regime_el(env, mmu_idx)];
+}
+
+/*
+ * These are the fields in VTCR_EL2 which affect both the Secure stage 2
+ * and the Non-Secure stage 2 translation regimes (and hence which are
+ * not present in VSTCR_EL2).
+ */
+#define VTCR_SHARED_FIELD_MASK \
+ (R_VTCR_IRGN0_MASK | R_VTCR_ORGN0_MASK | R_VTCR_SH0_MASK | \
+ R_VTCR_PS_MASK | R_VTCR_VS_MASK | R_VTCR_HA_MASK | R_VTCR_HD_MASK | \
+ R_VTCR_DS_MASK)
+
+/* Return the value of the TCR controlling this translation regime */
+static inline uint64_t regime_tcr(CPUARMState *env, ARMMMUIdx mmu_idx)
{
if (mmu_idx == ARMMMUIdx_Stage2) {
- return &env->cp15.vtcr_el2;
+ return env->cp15.vtcr_el2;
}
if (mmu_idx == ARMMMUIdx_Stage2_S) {
/*
- * Note: Secure stage 2 nominally shares fields from VTCR_EL2, but
- * those are not currently used by QEMU, so just return VSTCR_EL2.
+ * Secure stage 2 shares fields from VTCR_EL2. We merge those
+ * in with the VSTCR_EL2 value to synthesize a single VTCR_EL2 format
+ * value so the callers don't need to special case this.
+ *
+ * If a future architecture change defines bits in VSTCR_EL2 that
+ * overlap with these VTCR_EL2 fields we may need to revisit this.
*/
- return &env->cp15.vstcr_el2;
+ uint64_t v = env->cp15.vstcr_el2 & ~VTCR_SHARED_FIELD_MASK;
+ v |= env->cp15.vtcr_el2 & VTCR_SHARED_FIELD_MASK;
+ return v;
}
- return &env->cp15.tcr_el[regime_el(env, mmu_idx)];
+ return env->cp15.tcr_el[regime_el(env, mmu_idx)];
}
-/* Return the FSR value for a debug exception (watchpoint, hardware
- * breakpoint or BKPT insn) targeting the specified exception level.
- */
-static inline uint32_t arm_debug_exception_fsr(CPUARMState *env)
+/* Return true if the translation regime is using LPAE format page tables */
+static inline bool regime_using_lpae_format(CPUARMState *env, ARMMMUIdx mmu_idx)
{
- ARMMMUFaultInfo fi = { .type = ARMFault_Debug };
- int target_el = arm_debug_target_el(env);
- bool using_lpae = false;
-
- if (target_el == 2 || arm_el_is_aa64(env, target_el)) {
- using_lpae = true;
- } else {
- if (arm_feature(env, ARM_FEATURE_LPAE) &&
- (env->cp15.tcr_el[target_el].raw_tcr & TTBCR_EAE)) {
- using_lpae = true;
- }
+ int el = regime_el(env, mmu_idx);
+ if (el == 2 || arm_el_is_aa64(env, el)) {
+ return true;
}
-
- if (using_lpae) {
- return arm_fi_to_lfsc(&fi);
- } else {
- return arm_fi_to_sfsc(&fi);
+ if (arm_feature(env, ARM_FEATURE_PMSA) &&
+ arm_feature(env, ARM_FEATURE_V8)) {
+ return true;
+ }
+ if (arm_feature(env, ARM_FEATURE_LPAE)
+ && (regime_tcr(env, mmu_idx) & TTBCR_EAE)) {
+ return true;
}
+ return false;
}
/**
@@ -908,7 +1096,7 @@ static inline const char *aarch32_mode_name(uint32_t psr)
*
* Update the CPU_INTERRUPT_VIRQ bit in cs->interrupt_request, following
* a change to either the input VIRQ line from the GIC or the HCR_EL2.VI bit.
- * Must be called with the iothread lock held.
+ * Must be called with the BQL held.
*/
void arm_cpu_update_virq(ARMCPU *cpu);
@@ -917,11 +1105,19 @@ void arm_cpu_update_virq(ARMCPU *cpu);
*
* Update the CPU_INTERRUPT_VFIQ bit in cs->interrupt_request, following
* a change to either the input VFIQ line from the GIC or the HCR_EL2.VF bit.
- * Must be called with the iothread lock held.
+ * Must be called with the BQL held.
*/
void arm_cpu_update_vfiq(ARMCPU *cpu);
/**
+ * arm_cpu_update_vserr: Update CPU_INTERRUPT_VSERR bit
+ *
+ * Update the CPU_INTERRUPT_VSERR bit in cs->interrupt_request,
+ * following a change to the HCR_EL2.VSE bit.
+ */
+void arm_cpu_update_vserr(ARMCPU *cpu);
+
+/**
* arm_mmu_idx_el:
* @env: The cpu environment
* @el: The EL to use.
@@ -945,11 +1141,16 @@ ARMMMUIdx arm_mmu_idx(CPUARMState *env);
* Return the ARMMMUIdx for the stage1 traversal for the current regime.
*/
#ifdef CONFIG_USER_ONLY
+static inline ARMMMUIdx stage_1_mmu_idx(ARMMMUIdx mmu_idx)
+{
+ return ARMMMUIdx_Stage1_E0;
+}
static inline ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env)
{
return ARMMMUIdx_Stage1_E0;
}
#else
+ARMMMUIdx stage_1_mmu_idx(ARMMMUIdx mmu_idx);
ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env);
#endif
@@ -966,9 +1167,6 @@ static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx)
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_Stage1_E1:
case ARMMMUIdx_Stage1_E1_PAN:
- case ARMMMUIdx_Stage1_SE0:
- case ARMMMUIdx_Stage1_SE1:
- case ARMMMUIdx_Stage1_SE1_PAN:
return true;
default:
return false;
@@ -1035,37 +1233,70 @@ static inline uint32_t aarch64_pstate_valid_mask(const ARMISARegisters *id)
return valid;
}
+/* Granule size (i.e. page size) */
+typedef enum ARMGranuleSize {
+ /* Same order as TG0 encoding */
+ Gran4K,
+ Gran64K,
+ Gran16K,
+ GranInvalid,
+} ARMGranuleSize;
+
+/**
+ * arm_granule_bits: Return address size of the granule in bits
+ *
+ * Return the address size of the granule in bits. This corresponds
+ * to the pseudocode TGxGranuleBits().
+ */
+static inline int arm_granule_bits(ARMGranuleSize gran)
+{
+ switch (gran) {
+ case Gran64K:
+ return 16;
+ case Gran16K:
+ return 14;
+ case Gran4K:
+ return 12;
+ default:
+ g_assert_not_reached();
+ }
+}
+
/*
* Parameters of a given virtual address, as extracted from the
* translation control register (TCR) for a given regime.
*/
typedef struct ARMVAParameters {
unsigned tsz : 8;
+ unsigned ps : 3;
+ unsigned sh : 2;
unsigned select : 1;
bool tbi : 1;
bool epd : 1;
bool hpd : 1;
- bool using16k : 1;
- bool using64k : 1;
+ bool tsz_oob : 1; /* tsz has been clamped to legal range */
+ bool ds : 1;
+ bool ha : 1;
+ bool hd : 1;
+ ARMGranuleSize gran : 2;
} ARMVAParameters;
+/**
+ * aa64_va_parameters: Return parameters for an AArch64 virtual address
+ * @env: CPU
+ * @va: virtual address to look up
+ * @mmu_idx: determines translation regime to use
+ * @data: true if this is a data access
+ * @el1_is_aa32: true if we are asking about stage 2 when EL1 is AArch32
+ * (ignored if @mmu_idx is for a stage 1 regime; only affects tsz/tsz_oob)
+ */
ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va,
- ARMMMUIdx mmu_idx, bool data);
+ ARMMMUIdx mmu_idx, bool data,
+ bool el1_is_aa32);
-static inline int exception_target_el(CPUARMState *env)
-{
- 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;
-}
+int aa64_va_parameter_tbi(uint64_t tcr, ARMMMUIdx mmu_idx);
+int aa64_va_parameter_tbid(uint64_t tcr, ARMMMUIdx mmu_idx);
+int aa64_va_parameter_tcma(uint64_t tcr, ARMMMUIdx mmu_idx);
/* Determine if allocation tags are available. */
static inline bool allocation_tag_access_enabled(CPUARMState *env, int el,
@@ -1076,7 +1307,7 @@ static inline bool allocation_tag_access_enabled(CPUARMState *env, int el,
&& !(env->cp15.scr_el3 & SCR_ATA)) {
return false;
}
- if (el < 2 && arm_feature(env, ARM_FEATURE_EL2)) {
+ if (el < 2 && arm_is_el2_enabled(env)) {
uint64_t hcr = arm_hcr_el2_eff(env);
if (!(hcr & HCR_ATA) && (!(hcr & HCR_E2H) || !(hcr & HCR_TGE))) {
return false;
@@ -1101,40 +1332,81 @@ typedef struct 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);
+ bool secure, V8M_SAttributes *sattrs);
/* Cacheability and shareability attributes for a memory access */
typedef struct ARMCacheAttrs {
- unsigned int attrs:8; /* as in the MAIR register encoding */
+ /*
+ * If is_s2_format is true, attrs is the S2 descriptor bits [5:2]
+ * Otherwise, attrs is the same as the MAIR_EL1 8-bit format
+ */
+ unsigned int attrs:8;
unsigned int shareability:2; /* as in the SH field of the VMSAv8-64 PTEs */
+ bool is_s2_format:1;
} ARMCacheAttrs;
+/* Fields that are valid upon success. */
+typedef struct GetPhysAddrResult {
+ CPUTLBEntryFull f;
+ ARMCacheAttrs cacheattrs;
+} GetPhysAddrResult;
+
+/**
+ * get_phys_addr: get the physical address for a virtual address
+ * @env: CPUARMState
+ * @address: virtual address to get physical address for
+ * @access_type: 0 for read, 1 for write, 2 for execute
+ * @mmu_idx: MMU index indicating required translation regime
+ * @result: set on translation success.
+ * @fi: set to fault info if the translation fails
+ *
+ * Find the physical address corresponding to the given virtual address,
+ * by doing a translation table walk on MMU based systems or using the
+ * MPU state on MPU based systems.
+ *
+ * Returns false if the translation was successful. Otherwise, phys_ptr, attrs,
+ * prot and page_size may not be filled in, and the populated fsr value provides
+ * information on why the translation aborted, in the format of a
+ * DFSR/IFSR fault register, with the following caveats:
+ * * we honour the short vs long DFSR format differences.
+ * * the WnR bit is never set (the caller must do this).
+ * * for PSMAv5 based systems we don't bother to return a full FSR format
+ * value.
+ */
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)
+ GetPhysAddrResult *result, ARMMMUFaultInfo *fi)
__attribute__((nonnull));
-void arm_log_exception(int idx);
+/**
+ * get_phys_addr_with_space_nogpc: get the physical address for a virtual
+ * address
+ * @env: CPUARMState
+ * @address: virtual address to get physical address for
+ * @access_type: 0 for read, 1 for write, 2 for execute
+ * @mmu_idx: MMU index indicating required translation regime
+ * @space: security space for the access
+ * @result: set on translation success.
+ * @fi: set to fault info if the translation fails
+ *
+ * Similar to get_phys_addr, but use the given security space and don't perform
+ * a Granule Protection Check on the resulting address.
+ */
+bool get_phys_addr_with_space_nogpc(CPUARMState *env, target_ulong address,
+ MMUAccessType access_type,
+ ARMMMUIdx mmu_idx, ARMSecuritySpace space,
+ GetPhysAddrResult *result,
+ ARMMMUFaultInfo *fi)
+ __attribute__((nonnull));
-#endif /* !CONFIG_USER_ONLY */
+bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
+ MMUAccessType access_type, ARMMMUIdx mmu_idx,
+ bool is_secure, GetPhysAddrResult *result,
+ ARMMMUFaultInfo *fi, uint32_t *mregion);
-/*
- * The log2 of the words in the tag block, for GMID_EL1.BS.
- * The is the maximum, 256 bytes, which manipulates 64-bits of tags.
- */
-#define GMID_EL1_BS 6
+void arm_log_exception(CPUState *cs);
-/* We associate one allocation tag per 16 bytes, the minimum. */
-#define LOG2_TAG_GRANULE 4
-#define TAG_GRANULE (1 << LOG2_TAG_GRANULE)
+#endif /* !CONFIG_USER_ONLY */
/*
* SVE predicates are 1/8 the size of SVE vectors, and cannot use
@@ -1156,11 +1428,67 @@ FIELD(MTEDESC, MIDX, 0, 4)
FIELD(MTEDESC, TBI, 4, 2)
FIELD(MTEDESC, TCMA, 6, 2)
FIELD(MTEDESC, WRITE, 8, 1)
-FIELD(MTEDESC, SIZEM1, 9, SIMD_DATA_BITS - 9) /* size - 1 */
+FIELD(MTEDESC, ALIGN, 9, 3)
+FIELD(MTEDESC, SIZEM1, 12, SIMD_DATA_BITS - SVE_MTEDESC_SHIFT - 12) /* size - 1 */
bool mte_probe(CPUARMState *env, uint32_t desc, uint64_t ptr);
uint64_t mte_check(CPUARMState *env, uint32_t desc, uint64_t ptr, uintptr_t ra);
+/**
+ * mte_mops_probe: Check where the next MTE failure is for a FEAT_MOPS operation
+ * @env: CPU env
+ * @ptr: start address of memory region (dirty pointer)
+ * @size: length of region (guaranteed not to cross a page boundary)
+ * @desc: MTEDESC descriptor word (0 means no MTE checks)
+ * Returns: the size of the region that can be copied without hitting
+ * an MTE tag failure
+ *
+ * Note that we assume that the caller has already checked the TBI
+ * and TCMA bits with mte_checks_needed() and an MTE check is definitely
+ * required.
+ */
+uint64_t mte_mops_probe(CPUARMState *env, uint64_t ptr, uint64_t size,
+ uint32_t desc);
+
+/**
+ * mte_mops_probe_rev: Check where the next MTE failure is for a FEAT_MOPS
+ * operation going in the reverse direction
+ * @env: CPU env
+ * @ptr: *end* address of memory region (dirty pointer)
+ * @size: length of region (guaranteed not to cross a page boundary)
+ * @desc: MTEDESC descriptor word (0 means no MTE checks)
+ * Returns: the size of the region that can be copied without hitting
+ * an MTE tag failure
+ *
+ * Note that we assume that the caller has already checked the TBI
+ * and TCMA bits with mte_checks_needed() and an MTE check is definitely
+ * required.
+ */
+uint64_t mte_mops_probe_rev(CPUARMState *env, uint64_t ptr, uint64_t size,
+ uint32_t desc);
+
+/**
+ * mte_check_fail: Record an MTE tag check failure
+ * @env: CPU env
+ * @desc: MTEDESC descriptor word
+ * @dirty_ptr: Failing dirty address
+ * @ra: TCG retaddr
+ *
+ * This may never return (if the MTE tag checks are configured to fault).
+ */
+void mte_check_fail(CPUARMState *env, uint32_t desc,
+ uint64_t dirty_ptr, uintptr_t ra);
+
+/**
+ * mte_mops_set_tags: Set MTE tags for a portion of a FEAT_MOPS operation
+ * @env: CPU env
+ * @dirty_ptr: Start address of memory region (dirty pointer)
+ * @size: length of region (guaranteed not to cross page boundary)
+ * @desc: MTEDESC descriptor word
+ */
+void mte_mops_set_tags(CPUARMState *env, uint64_t dirty_ptr, uint64_t size,
+ uint32_t desc);
+
static inline int allocation_tag_from_addr(uint64_t ptr)
{
return extract64(ptr, 56, 4);
@@ -1229,6 +1557,7 @@ enum MVEECIState {
/* Definitions for the PMU registers */
#define PMCRN_MASK 0xf800
#define PMCRN_SHIFT 11
+#define PMCRLP 0x80
#define PMCRLC 0x40
#define PMCRDP 0x20
#define PMCRX 0x10
@@ -1237,10 +1566,10 @@ enum MVEECIState {
#define PMCRP 0x2
#define PMCRE 0x1
/*
- * Mask of PMCR bits writeable by guest (not including WO bits like C, P,
+ * Mask of PMCR bits writable by guest (not including WO bits like C, P,
* which can be written as 1 to trigger behaviour but which stay RAZ).
*/
-#define PMCR_WRITEABLE_MASK (PMCRLC | PMCRDP | PMCRX | PMCRD | PMCRE)
+#define PMCR_WRITABLE_MASK (PMCRLP | PMCRLC | PMCRDP | PMCRX | PMCRD | PMCRE)
#define PMXEVTYPER_P 0x80000000
#define PMXEVTYPER_U 0x40000000
@@ -1261,13 +1590,153 @@ enum MVEECIState {
static inline uint32_t pmu_num_counters(CPUARMState *env)
{
- return (env->cp15.c9_pmcr & PMCRN_MASK) >> PMCRN_SHIFT;
+ ARMCPU *cpu = env_archcpu(env);
+
+ return (cpu->isar.reset_pmcr_el0 & PMCRN_MASK) >> PMCRN_SHIFT;
}
/* Bits allowed to be set/cleared for PMCNTEN* and PMINTEN* */
static inline uint64_t pmu_counter_mask(CPUARMState *env)
{
- return (1 << 31) | ((1 << pmu_num_counters(env)) - 1);
+ return (1ULL << 31) | ((1ULL << pmu_num_counters(env)) - 1);
+}
+
+#ifdef TARGET_AARCH64
+GDBFeature *arm_gen_dynamic_svereg_feature(CPUState *cpu, int base_reg);
+int aarch64_gdb_get_sve_reg(CPUState *cs, GByteArray *buf, int reg);
+int aarch64_gdb_set_sve_reg(CPUState *cs, uint8_t *buf, int reg);
+int aarch64_gdb_get_fpu_reg(CPUState *cs, GByteArray *buf, int reg);
+int aarch64_gdb_set_fpu_reg(CPUState *cs, uint8_t *buf, int reg);
+int aarch64_gdb_get_pauth_reg(CPUState *cs, GByteArray *buf, int reg);
+int aarch64_gdb_set_pauth_reg(CPUState *cs, uint8_t *buf, int reg);
+void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp);
+void arm_cpu_sme_finalize(ARMCPU *cpu, Error **errp);
+void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp);
+void arm_cpu_lpa2_finalize(ARMCPU *cpu, Error **errp);
+void aarch64_max_tcg_initfn(Object *obj);
+void aarch64_add_pauth_properties(Object *obj);
+void aarch64_add_sve_properties(Object *obj);
+void aarch64_add_sme_properties(Object *obj);
+#endif
+
+/* Read the CONTROL register as the MRS instruction would. */
+uint32_t arm_v7m_mrs_control(CPUARMState *env, uint32_t secure);
+
+/*
+ * Return a pointer to the location where we currently store the
+ * stack pointer for the requested security state and thread mode.
+ * This pointer will become invalid if the CPU state is updated
+ * such that the stack pointers are switched around (eg changing
+ * the SPSEL control bit).
+ */
+uint32_t *arm_v7m_get_sp_ptr(CPUARMState *env, bool secure,
+ bool threadmode, bool spsel);
+
+bool el_is_in_host(CPUARMState *env, int el);
+
+void aa32_max_features(ARMCPU *cpu);
+int exception_target_el(CPUARMState *env);
+bool arm_singlestep_active(CPUARMState *env);
+bool arm_generate_debug_exceptions(CPUARMState *env);
+
+/**
+ * pauth_ptr_mask:
+ * @param: parameters defining the MMU setup
+ *
+ * Return a mask of the address bits that contain the authentication code,
+ * given the MMU config defined by @param.
+ */
+static inline uint64_t pauth_ptr_mask(ARMVAParameters param)
+{
+ int bot_pac_bit = 64 - param.tsz;
+ int top_pac_bit = 64 - 8 * param.tbi;
+
+ return MAKE_64BIT_MASK(bot_pac_bit, top_pac_bit - bot_pac_bit);
+}
+
+/* Add the cpreg definitions for debug related system registers */
+void define_debug_regs(ARMCPU *cpu);
+
+/* Effective value of MDCR_EL2 */
+static inline uint64_t arm_mdcr_el2_eff(CPUARMState *env)
+{
+ return arm_is_el2_enabled(env) ? env->cp15.mdcr_el2 : 0;
}
+/* Powers of 2 for sve_vq_map et al. */
+#define SVE_VQ_POW2_MAP \
+ ((1 << (1 - 1)) | (1 << (2 - 1)) | \
+ (1 << (4 - 1)) | (1 << (8 - 1)) | (1 << (16 - 1)))
+
+/*
+ * Return true if it is possible to take a fine-grained-trap to EL2.
+ */
+static inline bool arm_fgt_active(CPUARMState *env, int el)
+{
+ /*
+ * The Arm ARM only requires the "{E2H,TGE} != {1,1}" test for traps
+ * that can affect EL0, but it is harmless to do the test also for
+ * traps on registers that are only accessible at EL1 because if the test
+ * returns true then we can't be executing at EL1 anyway.
+ * FGT traps only happen when EL2 is enabled and EL1 is AArch64;
+ * traps from AArch32 only happen for the EL0 is AArch32 case.
+ */
+ return cpu_isar_feature(aa64_fgt, env_archcpu(env)) &&
+ el < 2 && arm_is_el2_enabled(env) &&
+ arm_el_is_aa64(env, 1) &&
+ (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE) &&
+ (!arm_feature(env, ARM_FEATURE_EL3) || (env->cp15.scr_el3 & SCR_FGTEN));
+}
+
+void assert_hflags_rebuild_correctly(CPUARMState *env);
+
+/*
+ * Although the ARM implementation of hardware assisted debugging
+ * allows for different breakpoints per-core, the current GDB
+ * interface treats them as a global pool of registers (which seems to
+ * be the case for x86, ppc and s390). As a result we store one copy
+ * of registers which is used for all active cores.
+ *
+ * Write access is serialised by virtue of the GDB protocol which
+ * updates things. Read access (i.e. when the values are copied to the
+ * vCPU) is also gated by GDB's run control.
+ *
+ * This is not unreasonable as most of the time debugging kernels you
+ * never know which core will eventually execute your function.
+ */
+
+typedef struct {
+ uint64_t bcr;
+ uint64_t bvr;
+} HWBreakpoint;
+
+/*
+ * The watchpoint registers can cover more area than the requested
+ * watchpoint so we need to store the additional information
+ * somewhere. We also need to supply a CPUWatchpoint to the GDB stub
+ * when the watchpoint is hit.
+ */
+typedef struct {
+ uint64_t wcr;
+ uint64_t wvr;
+ CPUWatchpoint details;
+} HWWatchpoint;
+
+/* Maximum and current break/watch point counts */
+extern int max_hw_bps, max_hw_wps;
+extern GArray *hw_breakpoints, *hw_watchpoints;
+
+#define cur_hw_wps (hw_watchpoints->len)
+#define cur_hw_bps (hw_breakpoints->len)
+#define get_hw_bp(i) (&g_array_index(hw_breakpoints, HWBreakpoint, i))
+#define get_hw_wp(i) (&g_array_index(hw_watchpoints, HWWatchpoint, i))
+
+bool find_hw_breakpoint(CPUState *cpu, target_ulong pc);
+int insert_hw_breakpoint(target_ulong pc);
+int delete_hw_breakpoint(target_ulong pc);
+
+bool check_watchpoint_in_range(int i, target_ulong addr);
+CPUWatchpoint *find_hw_watchpoint(CPUState *cpu, target_ulong addr);
+int insert_hw_watchpoint(target_ulong addr, target_ulong len, int type);
+int delete_hw_watchpoint(target_ulong addr, target_ulong len, int type);
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 21:24:39 +0000