1*843e1988Sjohnlev /****************************************************************************** 2*843e1988Sjohnlev * nmi.h 3*843e1988Sjohnlev * 4*843e1988Sjohnlev * NMI callback registration and reason codes. 5*843e1988Sjohnlev * 6*843e1988Sjohnlev * Permission is hereby granted, free of charge, to any person obtaining a copy 7*843e1988Sjohnlev * of this software and associated documentation files (the "Software"), to 8*843e1988Sjohnlev * deal in the Software without restriction, including without limitation the 9*843e1988Sjohnlev * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10*843e1988Sjohnlev * sell copies of the Software, and to permit persons to whom the Software is 11*843e1988Sjohnlev * furnished to do so, subject to the following conditions: 12*843e1988Sjohnlev * 13*843e1988Sjohnlev * The above copyright notice and this permission notice shall be included in 14*843e1988Sjohnlev * all copies or substantial portions of the Software. 15*843e1988Sjohnlev * 16*843e1988Sjohnlev * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17*843e1988Sjohnlev * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18*843e1988Sjohnlev * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19*843e1988Sjohnlev * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20*843e1988Sjohnlev * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21*843e1988Sjohnlev * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22*843e1988Sjohnlev * DEALINGS IN THE SOFTWARE. 23*843e1988Sjohnlev * 24*843e1988Sjohnlev * Copyright (c) 2005, Keir Fraser <keir@xensource.com> 25*843e1988Sjohnlev */ 26*843e1988Sjohnlev 27*843e1988Sjohnlev #ifndef __XEN_PUBLIC_NMI_H__ 28*843e1988Sjohnlev #define __XEN_PUBLIC_NMI_H__ 29*843e1988Sjohnlev 30*843e1988Sjohnlev /* 31*843e1988Sjohnlev * NMI reason codes: 32*843e1988Sjohnlev * Currently these are x86-specific, stored in arch_shared_info.nmi_reason. 33*843e1988Sjohnlev */ 34*843e1988Sjohnlev /* I/O-check error reported via ISA port 0x61, bit 6. */ 35*843e1988Sjohnlev #define _XEN_NMIREASON_io_error 0 36*843e1988Sjohnlev #define XEN_NMIREASON_io_error (1UL << _XEN_NMIREASON_io_error) 37*843e1988Sjohnlev /* Parity error reported via ISA port 0x61, bit 7. */ 38*843e1988Sjohnlev #define _XEN_NMIREASON_parity_error 1 39*843e1988Sjohnlev #define XEN_NMIREASON_parity_error (1UL << _XEN_NMIREASON_parity_error) 40*843e1988Sjohnlev /* Unknown hardware-generated NMI. */ 41*843e1988Sjohnlev #define _XEN_NMIREASON_unknown 2 42*843e1988Sjohnlev #define XEN_NMIREASON_unknown (1UL << _XEN_NMIREASON_unknown) 43*843e1988Sjohnlev 44*843e1988Sjohnlev /* 45*843e1988Sjohnlev * long nmi_op(unsigned int cmd, void *arg) 46*843e1988Sjohnlev * NB. All ops return zero on success, else a negative error code. 47*843e1988Sjohnlev */ 48*843e1988Sjohnlev 49*843e1988Sjohnlev /* 50*843e1988Sjohnlev * Register NMI callback for this (calling) VCPU. Currently this only makes 51*843e1988Sjohnlev * sense for domain 0, vcpu 0. All other callers will be returned EINVAL. 52*843e1988Sjohnlev * arg == pointer to xennmi_callback structure. 53*843e1988Sjohnlev */ 54*843e1988Sjohnlev #define XENNMI_register_callback 0 55*843e1988Sjohnlev struct xennmi_callback { 56*843e1988Sjohnlev unsigned long handler_address; 57*843e1988Sjohnlev unsigned long pad; 58*843e1988Sjohnlev }; 59*843e1988Sjohnlev typedef struct xennmi_callback xennmi_callback_t; 60*843e1988Sjohnlev DEFINE_XEN_GUEST_HANDLE(xennmi_callback_t); 61*843e1988Sjohnlev 62*843e1988Sjohnlev /* 63*843e1988Sjohnlev * Deregister NMI callback for this (calling) VCPU. 64*843e1988Sjohnlev * arg == NULL. 65*843e1988Sjohnlev */ 66*843e1988Sjohnlev #define XENNMI_unregister_callback 1 67*843e1988Sjohnlev 68*843e1988Sjohnlev #endif /* __XEN_PUBLIC_NMI_H__ */ 69*843e1988Sjohnlev 70*843e1988Sjohnlev /* 71*843e1988Sjohnlev * Local variables: 72*843e1988Sjohnlev * mode: C 73*843e1988Sjohnlev * c-set-style: "BSD" 74*843e1988Sjohnlev * c-basic-offset: 4 75*843e1988Sjohnlev * tab-width: 4 76*843e1988Sjohnlev * indent-tabs-mode: nil 77*843e1988Sjohnlev * End: 78*843e1988Sjohnlev */ 79