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/******************************************************************************
* nmi.h
*
* NMI callback registration and reason codes.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_NMI_H__
#define __XEN_PUBLIC_NMI_H__
/*
* NMI reason codes:
* Currently these are x86-specific, stored in arch_shared_info.nmi_reason.
*/
/* I/O-check error reported via ISA port 0x61, bit 6. */
#define _XEN_NMIREASON_io_error 0
#define XEN_NMIREASON_io_error (1UL << _XEN_NMIREASON_io_error)
/* Parity error reported via ISA port 0x61, bit 7. */
#define _XEN_NMIREASON_parity_error 1
#define XEN_NMIREASON_parity_error (1UL << _XEN_NMIREASON_parity_error)
/* Unknown hardware-generated NMI. */
#define _XEN_NMIREASON_unknown 2
#define XEN_NMIREASON_unknown (1UL << _XEN_NMIREASON_unknown)
/*
* long nmi_op(unsigned int cmd, void *arg)
* NB. All ops return zero on success, else a negative error code.
*/
/*
* Register NMI callback for this (calling) VCPU. Currently this only makes
* sense for domain 0, vcpu 0. All other callers will be returned EINVAL.
* arg == pointer to xennmi_callback structure.
*/
#define XENNMI_register_callback 0
struct xennmi_callback {
unsigned long handler_address;
unsigned long pad;
};
typedef struct xennmi_callback xennmi_callback_t;
DEFINE_XEN_GUEST_HANDLE(xennmi_callback_t);
/*
* Deregister NMI callback for this (calling) VCPU.
* arg == NULL.
*/
#define XENNMI_unregister_callback 1
#endif /* __XEN_PUBLIC_NMI_H__ */
/*
* Local variables:
* mode: C
* c-set-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/