1*5084Sjohnlev /****************************************************************************** 2*5084Sjohnlev * nmi.h 3*5084Sjohnlev * 4*5084Sjohnlev * NMI callback registration and reason codes. 5*5084Sjohnlev * 6*5084Sjohnlev * Permission is hereby granted, free of charge, to any person obtaining a copy 7*5084Sjohnlev * of this software and associated documentation files (the "Software"), to 8*5084Sjohnlev * deal in the Software without restriction, including without limitation the 9*5084Sjohnlev * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10*5084Sjohnlev * sell copies of the Software, and to permit persons to whom the Software is 11*5084Sjohnlev * furnished to do so, subject to the following conditions: 12*5084Sjohnlev * 13*5084Sjohnlev * The above copyright notice and this permission notice shall be included in 14*5084Sjohnlev * all copies or substantial portions of the Software. 15*5084Sjohnlev * 16*5084Sjohnlev * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17*5084Sjohnlev * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18*5084Sjohnlev * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19*5084Sjohnlev * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20*5084Sjohnlev * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21*5084Sjohnlev * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22*5084Sjohnlev * DEALINGS IN THE SOFTWARE. 23*5084Sjohnlev * 24*5084Sjohnlev * Copyright (c) 2005, Keir Fraser <keir@xensource.com> 25*5084Sjohnlev */ 26*5084Sjohnlev 27*5084Sjohnlev #ifndef __XEN_PUBLIC_NMI_H__ 28*5084Sjohnlev #define __XEN_PUBLIC_NMI_H__ 29*5084Sjohnlev 30*5084Sjohnlev /* 31*5084Sjohnlev * NMI reason codes: 32*5084Sjohnlev * Currently these are x86-specific, stored in arch_shared_info.nmi_reason. 33*5084Sjohnlev */ 34*5084Sjohnlev /* I/O-check error reported via ISA port 0x61, bit 6. */ 35*5084Sjohnlev #define _XEN_NMIREASON_io_error 0 36*5084Sjohnlev #define XEN_NMIREASON_io_error (1UL << _XEN_NMIREASON_io_error) 37*5084Sjohnlev /* Parity error reported via ISA port 0x61, bit 7. */ 38*5084Sjohnlev #define _XEN_NMIREASON_parity_error 1 39*5084Sjohnlev #define XEN_NMIREASON_parity_error (1UL << _XEN_NMIREASON_parity_error) 40*5084Sjohnlev /* Unknown hardware-generated NMI. */ 41*5084Sjohnlev #define _XEN_NMIREASON_unknown 2 42*5084Sjohnlev #define XEN_NMIREASON_unknown (1UL << _XEN_NMIREASON_unknown) 43*5084Sjohnlev 44*5084Sjohnlev /* 45*5084Sjohnlev * long nmi_op(unsigned int cmd, void *arg) 46*5084Sjohnlev * NB. All ops return zero on success, else a negative error code. 47*5084Sjohnlev */ 48*5084Sjohnlev 49*5084Sjohnlev /* 50*5084Sjohnlev * Register NMI callback for this (calling) VCPU. Currently this only makes 51*5084Sjohnlev * sense for domain 0, vcpu 0. All other callers will be returned EINVAL. 52*5084Sjohnlev * arg == pointer to xennmi_callback structure. 53*5084Sjohnlev */ 54*5084Sjohnlev #define XENNMI_register_callback 0 55*5084Sjohnlev struct xennmi_callback { 56*5084Sjohnlev unsigned long handler_address; 57*5084Sjohnlev unsigned long pad; 58*5084Sjohnlev }; 59*5084Sjohnlev typedef struct xennmi_callback xennmi_callback_t; 60*5084Sjohnlev DEFINE_XEN_GUEST_HANDLE(xennmi_callback_t); 61*5084Sjohnlev 62*5084Sjohnlev /* 63*5084Sjohnlev * Deregister NMI callback for this (calling) VCPU. 64*5084Sjohnlev * arg == NULL. 65*5084Sjohnlev */ 66*5084Sjohnlev #define XENNMI_unregister_callback 1 67*5084Sjohnlev 68*5084Sjohnlev #endif /* __XEN_PUBLIC_NMI_H__ */ 69*5084Sjohnlev 70*5084Sjohnlev /* 71*5084Sjohnlev * Local variables: 72*5084Sjohnlev * mode: C 73*5084Sjohnlev * c-set-style: "BSD" 74*5084Sjohnlev * c-basic-offset: 4 75*5084Sjohnlev * tab-width: 4 76*5084Sjohnlev * indent-tabs-mode: nil 77*5084Sjohnlev * End: 78*5084Sjohnlev */ 79