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Annotation of Gnu-Mach/xen/public/nmi.h, revision 1.1.1.1

1.1       root        1: /******************************************************************************
                      2:  * nmi.h
                      3:  * 
                      4:  * NMI callback registration and reason codes.
                      5:  * 
                      6:  * Permission is hereby granted, free of charge, to any person obtaining a copy
                      7:  * of this software and associated documentation files (the "Software"), to
                      8:  * deal in the Software without restriction, including without limitation the
                      9:  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
                     10:  * sell copies of the Software, and to permit persons to whom the Software is
                     11:  * furnished to do so, subject to the following conditions:
                     12:  *
                     13:  * The above copyright notice and this permission notice shall be included in
                     14:  * all copies or substantial portions of the Software.
                     15:  *
                     16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
                     17:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
                     19:  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
                     20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
                     21:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
                     22:  * DEALINGS IN THE SOFTWARE.
                     23:  *
                     24:  * Copyright (c) 2005, Keir Fraser <[email protected]>
                     25:  */
                     26: 
                     27: #ifndef __XEN_PUBLIC_NMI_H__
                     28: #define __XEN_PUBLIC_NMI_H__
                     29: 
                     30: /*
                     31:  * NMI reason codes:
                     32:  * Currently these are x86-specific, stored in arch_shared_info.nmi_reason.
                     33:  */
                     34:  /* I/O-check error reported via ISA port 0x61, bit 6. */
                     35: #define _XEN_NMIREASON_io_error     0
                     36: #define XEN_NMIREASON_io_error      (1UL << _XEN_NMIREASON_io_error)
                     37:  /* Parity error reported via ISA port 0x61, bit 7. */
                     38: #define _XEN_NMIREASON_parity_error 1
                     39: #define XEN_NMIREASON_parity_error  (1UL << _XEN_NMIREASON_parity_error)
                     40:  /* Unknown hardware-generated NMI. */
                     41: #define _XEN_NMIREASON_unknown      2
                     42: #define XEN_NMIREASON_unknown       (1UL << _XEN_NMIREASON_unknown)
                     43: 
                     44: /*
                     45:  * long nmi_op(unsigned int cmd, void *arg)
                     46:  * NB. All ops return zero on success, else a negative error code.
                     47:  */
                     48: 
                     49: /*
                     50:  * Register NMI callback for this (calling) VCPU. Currently this only makes
                     51:  * sense for domain 0, vcpu 0. All other callers will be returned EINVAL.
                     52:  * arg == pointer to xennmi_callback structure.
                     53:  */
                     54: #define XENNMI_register_callback   0
                     55: struct xennmi_callback {
                     56:     unsigned long handler_address;
                     57:     unsigned long pad;
                     58: };
                     59: typedef struct xennmi_callback xennmi_callback_t;
                     60: DEFINE_XEN_GUEST_HANDLE(xennmi_callback_t);
                     61: 
                     62: /*
                     63:  * Deregister NMI callback for this (calling) VCPU.
                     64:  * arg == NULL.
                     65:  */
                     66: #define XENNMI_unregister_callback 1
                     67: 
                     68: #endif /* __XEN_PUBLIC_NMI_H__ */
                     69: 
                     70: /*
                     71:  * Local variables:
                     72:  * mode: C
                     73:  * c-set-style: "BSD"
                     74:  * c-basic-offset: 4
                     75:  * tab-width: 4
                     76:  * indent-tabs-mode: nil
                     77:  * End:
                     78:  */

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