x86_smm_notification

Description

Objects registered in processor's smm_listeners attribute will be called via the notification method whenever the CPU's enters and leaves SMI handler. SMI handler entry occurs on SMI processing. SMI handler exit occurs by RSM instruction execution. Please note that for both SMI handler entry and SMI handler exit notification method will be invoked twice: at the beginning of the entry/exit and at the end when CPU state was already modified. event argument says if entry/exit is performed, phase argument equals to X86_Smm_Phase0 for the beginning of the event and to X86_Smm_Phase1 for the end.

typedef enum x86_smm_event_type {
    X86_Smm_Enter,
    X86_Smm_Leave
} x86_smm_event_type_t;

typedef enum x86_smm_phase_type {
    X86_Smm_Phase0,
    X86_Smm_Phase1
} x86_smm_phase_type_t;

SIM_INTERFACE(x86_smm_notification) {
        void (*notification)(conf_object_t *listener, conf_object_t *cpu,
                             x86_smm_event_type_t event,
                             x86_smm_phase_type_t phase);
};
#define X86_SMM_NOTIFICATION_INTERFACE "x86_smm_notification"

Execution Context

Cell Context.