target/arm/cpregs.h

6  * This program is free software; you can redistribute it and/or
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17  * along with this program; if not, see
55      * Flag: TB should not be ended after a write to this register
75      * registers which implement clocks or timers require this.
81      * KVM state synchronization. Typically this is for "registers" which are
98      * Flag: Access check for this sysreg is identical to accessing FPU state
103      * Flag: Access check for this sysreg is identical to accessing SVE state
121      * Flag: Access check for this sysreg is constrained by the
131      * Flag: this is a TLBI insn which (when FEAT_XS is present) also has
133      * so when registering this cpreg automatically also register one
155  * (In this case crn and opc2 should be zero.)
165  * This bit is private to our hashtable cpreg; in KVM register
240  * the AArch32 and AArch64 execution states this register is visible in.
278  * in higher privilege levels too. Since "Secure PL1" also follows this rule
281  * terminology a little and call this PL3.
301      * trap-and-emulate ABI. In this case we define the read permissions
343      * Note that this is not a catch-all case -- the set of cases which may
344      * result in this failure is specifically defined by the architecture.
345      * This trap is always to the usual target EL, never directly to a
700      * only. But this seems unlikely to happen.)
869      * will be decoded to this register. The register read and write
889     /* Execution state in which this register is visible: ARM_CP_STATE_* */
898      * Which fine-grained trap register bit to check, if any. This
911      * this register was defined: can be used to hand data through to the
916      * Value of this register, if it is ARM_CP_CONST. Otherwise, if
921      * Offset of the field in CPUARMState for this register.
922      * This is not needed if either:
937      * that both bank offsets are set when defining a banked register.  This
943      * Function for making any access checks for this register in addition to
950      * Function for handling reads of this register. If NULL, then reads
956      * Function for handling writes of this register. If NULL, then writes
964      * migration. This only needs to be provided if there is also a
971      * migration. This only needs to be provided if there is also a
1032  * userspace. This is used for presenting sanitised versions of
1078  * Return true if this reginfo struct's field in the cpu state struct
1130  * Return true if this cpreg is one which should be trapped to EL2 if
1141      * the opc1 field is 4 or 5. (You can see this also in the assert  in arm_cpreg_traps_in_nv()
1148      * However we do this check, it is going to be at least potentially  in arm_cpreg_traps_in_nv()
1149      * fragile to future new sysregs, but this seems the least likely  in arm_cpreg_traps_in_nv()
1153      * the FEAT_MEC sysregs and instructions do not follow this FEAT_NV  in arm_cpreg_traps_in_nv()