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/*
* Copyright (c) 2012, ARM Limited. All rights reserved.
*
* Redistribution and use in source and binary forms, with
* or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and
* the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*/
#ifndef __VIRTUALISOR_H__
#define __VIRTUALISOR_H__
#include "misc.h"
#include "virt_helpers.h"
/*
* Data structure that holds a copy of the virtualized regs
*/
typedef struct virt_regs {
unsigned cluster_id;
unsigned mpidr;
unsigned midr;
} virt_reg_data;
/*
* Data structure that holds all the trap registers exported
* by the Virtualisation Extensions.
*/
typedef struct trap_regs {
unsigned hcr;
unsigned hdcr;
unsigned hcptr;
unsigned hstr;
} reg_trap_data;
typedef struct gp_regs {
unsigned r[15];
} gp_regs;
/*
* Descriptor exported by each processor describing
* which traps it wants to implement along with
* handlers for saving and restoring for each conf-
* -igured trap.
*/
typedef struct virt_desc {
/* cpu midr contents */
unsigned cpu_no;
/*
* Bitmask to inidicate that Virtualisor setup has been
* done on both host & target cpus.
*/
unsigned char init[NUM_CPUS];
unsigned (*trap_setup) (unsigned, unsigned);
unsigned (*trap_handle) (gp_regs * regs, unsigned, unsigned);
unsigned (*trap_save) (unsigned, unsigned);
unsigned (*trap_restore) (unsigned, unsigned);
} virt_descriptor;
extern void SetupVirtualisor(unsigned);
extern void SaveVirtualisor(unsigned);
extern void RestoreVirtualisor(unsigned);
extern void HandleVirtualisor(gp_regs *);
extern void handle_vgic_distif_abort(unsigned, unsigned *, unsigned);
extern void handle_kfscb_abort(unsigned, unsigned *, unsigned);
extern unsigned find_sibling_cpu(void);
extern virt_descriptor virt_desc_section$$Base;
extern unsigned virt_desc_section$$Length;
extern unsigned host_cluster;
extern unsigned switcher;
#endif /* __VIRTUALISOR_H__ */
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