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cpu: Turn cpu_unassigned_access() into a CPUState hook

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Use it for all targets, but be careful not to pass invalid CPUState.
cpu_single_env can be NULL, e.g. on Xen.

Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-05-27 06:49:53 +02:00
parent ce927ed9e4
commit c658b94f6e
16 changed files with 124 additions and 45 deletions
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33
include/qom/cpu.h
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@ -22,6 +22,7 @@
#include <signal.h>
#include "hw/qdev-core.h"
#include "exec/hwaddr.h"
#include "qemu/thread.h"
#include "qemu/typedefs.h"
@ -42,12 +43,17 @@ typedef int (*WriteCoreDumpFunction)(void *buf, size_t size, void *opaque);
typedef struct CPUState CPUState;
typedef void (*CPUUnassignedAccess)(CPUState *cpu, hwaddr addr,
bool is_write, bool is_exec, int opaque,
unsigned size);
/**
* CPUClass:
* @class_by_name: Callback to map -cpu command line model name to an
* instantiatable CPU type.
* @reset: Callback to reset the #CPUState to its initial state.
* @do_interrupt: Callback for interrupt handling.
* @do_unassigned_access: Callback for unassigned access handling.
* @dump_state: Callback for dumping state.
* @dump_statistics: Callback for dumping statistics.
* @get_arch_id: Callback for getting architecture-dependent CPU ID.
@ -66,6 +72,7 @@ typedef struct CPUClass {
void (*reset)(CPUState *cpu);
void (*do_interrupt)(CPUState *cpu);
CPUUnassignedAccess do_unassigned_access;
void (*dump_state)(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
int flags);
void (*dump_statistics)(CPUState *cpu, FILE *f,
@ -280,6 +287,17 @@ static inline void cpu_class_set_vmsd(CPUClass *cc,
#define cpu_class_set_vmsd(cc, value) ((cc)->vmsd = NULL)
#endif
#ifndef CONFIG_USER_ONLY
static inline void cpu_class_set_do_unassigned_access(CPUClass *cc,
CPUUnassignedAccess value)
{
cc->do_unassigned_access = value;
}
#else
#define cpu_class_set_do_unassigned_access(cc, value) \
((cc)->do_unassigned_access = NULL)
#endif
/**
* device_class_set_vmsd:
* @dc: Device class
@ -403,6 +421,21 @@ void cpu_interrupt(CPUState *cpu, int mask);
#endif /* USER_ONLY */
#ifndef CONFIG_USER_ONLY
static inline void cpu_unassigned_access(CPUState *cpu, hwaddr addr,
bool is_write, bool is_exec,
int opaque, unsigned size)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (cc->do_unassigned_access) {
cc->do_unassigned_access(cpu, addr, is_write, is_exec, opaque, size);
}
}
#endif
/**
* cpu_reset_interrupt:
* @cpu: The CPU to clear the interrupt on.