| 1 |
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| 2 | |
| 3 | * nmi.h
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| 4 | *
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| 5 | * NMI callback registration and reason codes.
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| 6 | *
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| 7 | * Copyright (c) 2005, Keir Fraser <[email protected]>
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| 8 |
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| 9 |
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| 10 | #ifndef __XEN_PUBLIC_NMI_H__
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| 11 | #define __XEN_PUBLIC_NMI_H__
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| 12 |
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| 13 | #include <xen/interface/xen.h>
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| 14 |
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| 15 | |
| 16 | * NMI reason codes:
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| 17 | * Currently these are x86-specific, stored in arch_shared_info.nmi_reason.
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| 18 |
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| 19 |
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| 20 | #define _XEN_NMIREASON_io_error 0
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| 21 | #define XEN_NMIREASON_io_error (1UL << _XEN_NMIREASON_io_error)
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| 22 |
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| 23 | #define _XEN_NMIREASON_pci_serr 1
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| 24 | #define XEN_NMIREASON_pci_serr (1UL << _XEN_NMIREASON_pci_serr)
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| 25 |
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| 26 | #define _XEN_NMIREASON_unknown 2
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| 27 | #define XEN_NMIREASON_unknown (1UL << _XEN_NMIREASON_unknown)
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| 28 |
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| 29 | |
| 30 | * long nmi_op(unsigned int cmd, void *arg)
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| 31 | * NB. All ops return zero on success, else a negative error code.
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| 32 |
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| 33 |
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| 34 | |
| 35 | * Register NMI callback for this (calling) VCPU. Currently this only makes
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| 36 | * sense for domain 0, vcpu 0. All other callers will be returned EINVAL.
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| 37 | * arg == pointer to xennmi_callback structure.
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| 38 |
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| 39 | #define XENNMI_register_callback 0
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| 40 | struct xennmi_callback {
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| 41 | unsigned long handler_address;
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| 42 | unsigned long pad;
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| 43 | };
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| 44 | DEFINE_GUEST_HANDLE_STRUCT(xennmi_callback);
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| 45 |
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| 46 | |
| 47 | * Deregister NMI callback for this (calling) VCPU.
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| 48 | * arg == NULL.
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| 49 |
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| 50 | #define XENNMI_unregister_callback 1
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| 51 |
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| 52 | #endif
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