diff options
Diffstat (limited to 'target/arm/cpu.h')
| -rw-r--r-- | target/arm/cpu.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index b3def5a..b9b47f4 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -831,6 +831,7 @@ struct ARMCPU { */ bool cfgend; + QLIST_HEAD(, ARMELChangeHook) pre_el_change_hooks; QLIST_HEAD(, ARMELChangeHook) el_change_hooks; int32_t node_id; /* NUMA node this CPU belongs to */ @@ -2893,14 +2894,29 @@ static inline AddressSpace *arm_addressspace(CPUState *cs, MemTxAttrs attrs) #endif /** - * arm_register_el_change_hook: - * Register a hook function which will be called back whenever this + * arm_register_pre_el_change_hook: + * Register a hook function which will be called immediately before this * CPU changes exception level or mode. The hook function will be * passed a pointer to the ARMCPU and the opaque data pointer passed * to this function when the hook was registered. + * + * Note that if a pre-change hook is called, any registered post-change hooks + * are guaranteed to subsequently be called. */ -void arm_register_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, +void arm_register_pre_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, void *opaque); +/** + * arm_register_el_change_hook: + * Register a hook function which will be called immediately after this + * CPU changes exception level or mode. The hook function will be + * passed a pointer to the ARMCPU and the opaque data pointer passed + * to this function when the hook was registered. + * + * Note that any registered hooks registered here are guaranteed to be called + * if pre-change hooks have been. + */ +void arm_register_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, void + *opaque); /** * aa32_vfp_dreg: |