Revision c4241c7d target-arm/cpu.h
| b/target-arm/cpu.h | ||
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| 827 | 827 |
CP_ACCESS_TRAP_UNCATEGORIZED = 2, |
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} CPAccessResult; |
| 829 | 829 |
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/* Access functions for coprocessor registers. These should always succeed. */ |
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typedef int CPReadFn(CPUARMState *env, const ARMCPRegInfo *opaque, |
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uint64_t *value); |
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typedef int CPWriteFn(CPUARMState *env, const ARMCPRegInfo *opaque, |
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uint64_t value); |
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/* Access functions for coprocessor registers. These cannot fail and |
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* may not raise exceptions. |
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*/ |
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typedef uint64_t CPReadFn(CPUARMState *env, const ARMCPRegInfo *opaque); |
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typedef void CPWriteFn(CPUARMState *env, const ARMCPRegInfo *opaque, |
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uint64_t value); |
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/* Access permission check functions for coprocessor registers. */ |
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typedef CPAccessResult CPAccessFn(CPUARMState *env, const ARMCPRegInfo *opaque); |
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/* Hook function for register reset */ |
| ... | ... | |
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/* Function for doing a "raw" read; used when we need to copy |
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* coprocessor state to the kernel for KVM or out for |
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* migration. This only needs to be provided if there is also a |
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* readfn and it makes an access permission check.
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* readfn and it has side effects (for instance clear-on-read bits).
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*/ |
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CPReadFn *raw_readfn; |
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/* Function for doing a "raw" write; used when we need to copy KVM |
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* kernel coprocessor state into userspace, or for inbound |
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* migration. This only needs to be provided if there is also a |
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* writefn and it makes an access permission check or masks out
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* "unwritable" bits or has write-one-to-clear or similar behaviour.
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* writefn and it masks out "unwritable" bits or has write-one-to-clear
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* or similar behaviour. |
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*/ |
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CPWriteFn *raw_writefn; |
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/* Function for resetting the register. If NULL, then reset will be done |
| ... | ... | |
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const ARMCPRegInfo *get_arm_cp_reginfo(GHashTable *cpregs, uint32_t encoded_cp); |
| 949 | 950 |
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| 950 | 951 |
/* CPWriteFn that can be used to implement writes-ignored behaviour */ |
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int arm_cp_write_ignore(CPUARMState *env, const ARMCPRegInfo *ri,
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uint64_t value); |
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void arm_cp_write_ignore(CPUARMState *env, const ARMCPRegInfo *ri,
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uint64_t value);
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/* CPReadFn that can be used for read-as-zero behaviour */ |
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int arm_cp_read_zero(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t *value);
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uint64_t arm_cp_read_zero(CPUARMState *env, const ARMCPRegInfo *ri);
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| 955 | 956 |
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| 956 | 957 |
/* CPResetFn that does nothing, for use if no reset is required even |
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* if fieldoffset is non zero. |
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