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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* pv/traps.h
*
* PV guest traps interface definitions
*
* Copyright (C) 2017 Wei Liu <wei.liu2@citrix.com>
*/
#ifndef __X86_PV_TRAPS_H__
#define __X86_PV_TRAPS_H__
#ifdef CONFIG_PV
#include <public/xen.h>
void pv_trap_init(void);
int pv_raise_nmi(struct vcpu *v);
int pv_emulate_privileged_op(struct cpu_user_regs *regs);
void pv_emulate_gate_op(struct cpu_user_regs *regs);
bool pv_emulate_invalid_op(struct cpu_user_regs *regs);
static inline bool pv_trap_callback_registered(const struct vcpu *v,
uint8_t vector)
{
return v->arch.pv.trap_ctxt[vector].address;
}
#else /* !CONFIG_PV */
#include <xen/errno.h>
static inline void pv_trap_init(void) {}
static inline int pv_raise_nmi(struct vcpu *v) { return -EOPNOTSUPP; }
static inline int pv_emulate_privileged_op(struct cpu_user_regs *regs) { return 0; }
static inline void pv_emulate_gate_op(struct cpu_user_regs *regs) {}
static inline bool pv_emulate_invalid_op(struct cpu_user_regs *regs) { return true; }
static inline bool pv_trap_callback_registered(const struct vcpu *v,
uint8_t vector)
{
return false;
}
#endif /* CONFIG_PV */
#endif /* __X86_PV_TRAPS_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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