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Core_Control_Register_Write

Provided By

Simics Core

Callback Type

void (*)(lang_void *callback_data,
conf_object_t *trigger_obj,
integer_t register_number, integer_t value);

Index

register_number

Description

Called when a control register is written. Note that value is not (necessarily) the final contents in the register.

For x86 processors, this hap is triggered by CLTS, LMSW, and MOV. Page fault updates of CR2 should be caught with the Core_Exception hap. Note that if the callback routine breaks to the frontend by raising an exception, the instruction will be replayed possibly causing repeated memory operations.

For PowerPC processors, this hap is triggered by the MTSPR instruction (i.e., only explicit writes).

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