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