0
     /* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  fw_tables.h - Parsing support for ACPI and ACPI-like tables provided by
 *                platform or device firmware
 *
 *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
 *  Copyright (C) 2023 Intel Corp.
 */
#ifndef _FW_TABLE_H_
#define _FW_TABLE_H_

union acpi_subtable_headers;

typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
				      const unsigned long end);

typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header,
					  void *arg, const unsigned long end);

struct acpi_subtable_proc {
	int id;
	acpi_tbl_entry_handler handler;
	acpi_tbl_entry_handler_arg handler_arg;
	void *arg;
	int count;
};

union fw_table_header {
	struct acpi_table_header acpi;
	struct acpi_table_cdat cdat;
};

union acpi_subtable_headers {
	struct acpi_subtable_header common;
	struct acpi_hmat_structure hmat;
	struct acpi_prmt_module_header prmt;
	struct acpi_cedt_header cedt;
	struct acpi_cdat_header cdat;
};

int acpi_parse_entries_array(char *id, unsigned long table_size,
			     union fw_table_header *table_header,
			     unsigned long max_length,
			     struct acpi_subtable_proc *proc,
			     int proc_num, unsigned int max_entries);

int cdat_table_parse(enum acpi_cdat_type type,
		     acpi_tbl_entry_handler_arg handler_arg, void *arg,
		     struct acpi_table_cdat *table_header,
		     unsigned long length);

/* CXL is the only non-ACPI consumer of the FIRMWARE_TABLE library */
#if IS_ENABLED(CONFIG_ACPI) && !IS_ENABLED(CONFIG_CXL_BUS)
#define EXPORT_SYMBOL_FWTBL_LIB(x) EXPORT_SYMBOL_ACPI_LIB(x)
#define __init_or_fwtbl_lib __init_or_acpilib
#else
#define EXPORT_SYMBOL_FWTBL_LIB(x) EXPORT_SYMBOL_NS_GPL(x, CXL)
#define __init_or_fwtbl_lib
#endif

#endif
     ˆÃÂƒÀwÁÀ¿ 
÷    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_ENTRYKVM_H
#define __LINUX_ENTRYKVM_H

#include <linux/static_call_types.h>
#include <linux/resume_user_mode.h>
#include <linux/syscalls.h>
#include <linux/seccomp.h>
#include <linux/sched.h>
#include <linux/tick.h>

/* Transfer to guest mode work */
#ifdef CONFIG_KVM_XFER_TO_GUEST_WORK

#ifndef ARCH_XFER_TO_GUEST_MODE_WORK
# define ARCH_XFER_TO_GUEST_MODE_WORK	(0)
#endif

#define XFER_TO_GUEST_MODE_WORK						\
	(_TIF_NEED_RESCHED | _TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL |	\
	 _TIF_NOTIFY_RESUME | ARCH_XFER_TO_GUEST_MODE_WORK)

struct kvm_vcpu;

/**
 * arch_xfer_to_guest_mode_handle_work - Architecture specific xfer to guest
 *					 mode work handling function.
 * @vcpu:	Pointer to current's VCPU data
 * @ti_work:	Cached TIF flags gathered in xfer_to_guest_mode_handle_work()
 *
 * Invoked from xfer_to_guest_mode_handle_work(). Defaults to NOOP. Can be
 * replaced by architecture specific code.
 */
static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
						      unsigned long ti_work);

#ifndef arch_xfer_to_guest_mode_work
static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
						      unsigned long ti_work)
{
	return 0;
}
#endif

/**
 * xfer_to_guest_mode_handle_work - Check and handle pending work which needs
 *				    to be handled before going to guest mode
 * @vcpu:	Pointer to current's VCPU data
 *
 * Returns: 0 or an error code
 */
int xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu);

/**
 * xfer_to_guest_mode_prepare - Perform last minute preparation work that
 *				need to be handled while IRQs are disabled
 *				upon entering to guest.
 *
 * Has to be invoked with interrupts disabled before the last call
 * to xfer_to_guest_mode_work_pending().
 */
static inline void xfer_to_guest_mode_prepare(void)
{
	lockdep_assert_irqs_disabled();
	tick_nohz_user_enter_prepare();
}

/**
 * __xfer_to_guest_mode_work_pending - Check if work is pending
 *
 * Returns: True if work pending, False otherwise.
 *
 * Bare variant of xfer_to_guest_mode_work_pending(). Can be called from
 * interrupt enabled code for racy quick checks with care.
 */
static inline bool __xfer_to_guest_mode_work_pending(void)
{
	unsigned long ti_work