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Nama	Ukuran	Aksi
hvm	-	Open
io	-	Open
callback.h	3.46 MB	View DL Edit
elfnote.h	6.27 MB	View DL Edit
event_channel.h	7.48 MB	View DL Edit
features.h	3.32 MB	View DL Edit
grant_table.h	20.45 MB	View DL Edit
memory.h	10.67 MB	View DL Edit
nmi.h	1.51 MB	View DL Edit
physdev.h	8.24 MB	View DL Edit
platform.h	16.13 MB	View DL Edit
sched.h	6.57 MB	View DL Edit
vcpu.h	8.47 MB	View DL Edit
version.h	2.05 MB	View DL Edit
xen-mca.h	10.89 MB	View DL Edit
xen.h	31.02 MB	View DL Edit
xenpmu.h	2.47 MB	View DL Edit

Edit file: /usr/src/kernels/5.14.0-611.34.1.el9_7.x86_64/include/xen/interface/callback.h

/******************************************************************************
 * 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/interface/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).
 */

/* 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;
	xen_callback_t 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__ */

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