forked from luck/tmp_suning_uos_patched
103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
|
/******************************************************************************
|
||
|
|
* callback.h
|
||
|
|
*
|
||
|
|
* Register guest OS callbacks with Xen.
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to
|
||
|
|
* deal in the Software without restriction, including without limitation the
|
||
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||
|
|
* DEALINGS IN THE SOFTWARE.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2006, Ian Campbell
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __XEN_PUBLIC_CALLBACK_H__
|
||
|
|
#define __XEN_PUBLIC_CALLBACK_H__
|
||
|
|
|
||
|
|
#include "xen.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Prototype for this hypercall is:
|
||
|
|
* long callback_op(int cmd, void *extra_args)
|
||
|
|
* @cmd == CALLBACKOP_??? (callback operation).
|
||
|
|
* @extra_args == Operation-specific extra arguments (NULL if none).
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* ia64, x86: Callback for event delivery. */
|
||
|
|
#define CALLBACKTYPE_event 0
|
||
|
|
|
||
|
|
/* x86: Failsafe callback when guest state cannot be restored by Xen. */
|
||
|
|
#define CALLBACKTYPE_failsafe 1
|
||
|
|
|
||
|
|
/* x86/64 hypervisor: Syscall by 64-bit guest app ('64-on-64-on-64'). */
|
||
|
|
#define CALLBACKTYPE_syscall 2
|
||
|
|
|
||
|
|
/*
|
||
|
|
* x86/32 hypervisor: Only available on x86/32 when supervisor_mode_kernel
|
||
|
|
* feature is enabled. Do not use this callback type in new code.
|
||
|
|
*/
|
||
|
|
#define CALLBACKTYPE_sysenter_deprecated 3
|
||
|
|
|
||
|
|
/* x86: Callback for NMI delivery. */
|
||
|
|
#define CALLBACKTYPE_nmi 4
|
||
|
|
|
||
|
|
/*
|
||
|
|
* x86: sysenter is only available as follows:
|
||
|
|
* - 32-bit hypervisor: with the supervisor_mode_kernel feature enabled
|
||
|
|
* - 64-bit hypervisor: 32-bit guest applications on Intel CPUs
|
||
|
|
* ('32-on-32-on-64', '32-on-64-on-64')
|
||
|
|
* [nb. also 64-bit guest applications on Intel CPUs
|
||
|
|
* ('64-on-64-on-64'), but syscall is preferred]
|
||
|
|
*/
|
||
|
|
#define CALLBACKTYPE_sysenter 5
|
||
|
|
|
||
|
|
/*
|
||
|
|
* x86/64 hypervisor: Syscall by 32-bit guest app on AMD CPUs
|
||
|
|
* ('32-on-32-on-64', '32-on-64-on-64')
|
||
|
|
*/
|
||
|
|
#define CALLBACKTYPE_syscall32 7
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Disable event deliver during callback? This flag is ignored for event and
|
||
|
|
* NMI callbacks: event delivery is unconditionally disabled.
|
||
|
|
*/
|
||
|
|
#define _CALLBACKF_mask_events 0
|
||
|
|
#define CALLBACKF_mask_events (1U << _CALLBACKF_mask_events)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Register a callback.
|
||
|
|
*/
|
||
|
|
#define CALLBACKOP_register 0
|
||
|
|
struct callback_register {
|
||
|
|
uint16_t type;
|
||
|
|
uint16_t flags;
|
||
|
|
struct xen_callback address;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Unregister a callback.
|
||
|
|
*
|
||
|
|
* Not all callbacks can be unregistered. -EINVAL will be returned if
|
||
|
|
* you attempt to unregister such a callback.
|
||
|
|
*/
|
||
|
|
#define CALLBACKOP_unregister 1
|
||
|
|
struct callback_unregister {
|
||
|
|
uint16_t type;
|
||
|
|
uint16_t _unused;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* __XEN_PUBLIC_CALLBACK_H__ */
|