cregit-Linux how code gets into the kernel

Release 4.14 arch/x86/include/asm/xen/hypervisor.h

/******************************************************************************
 * hypervisor.h
 *
 * Linux-specific hypervisor handling.
 *
 * Copyright (c) 2002-2004, K A Fraser
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation; or, when distributed
 * separately from the Linux kernel or incorporated into other
 * software packages, subject to the following license:
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this source file (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.
 */

#ifndef _ASM_X86_XEN_HYPERVISOR_H

#define _ASM_X86_XEN_HYPERVISOR_H

extern struct shared_info *HYPERVISOR_shared_info;
extern struct start_info *xen_start_info;

#include <asm/processor.h>


static inline uint32_t xen_cpuid_base(void) { return hypervisor_cpuid_base("XenVMMXenVMM", 2); }

Contributors

PersonTokensPropCommitsCommitProp
Sheng Yang1482.35%150.00%
Jason (Hui) Wang317.65%150.00%
Total17100.00%2100.00%

#ifdef CONFIG_XEN extern bool xen_hvm_need_lapic(void);
static inline bool xen_x2apic_para_available(void) { return xen_hvm_need_lapic(); }

Contributors

PersonTokensPropCommitsCommitProp
Sheng Yang13100.00%1100.00%
Total13100.00%1100.00%

#else
static inline bool xen_x2apic_para_available(void) { return (xen_cpuid_base() != 0); }

Contributors

PersonTokensPropCommitsCommitProp
Sheng Yang17100.00%1100.00%
Total17100.00%1100.00%

#endif #ifdef CONFIG_HOTPLUG_CPU void xen_arch_register_cpu(int num); void xen_arch_unregister_cpu(int num); #endif extern void xen_set_iopl_mask(unsigned mask); #endif /* _ASM_X86_XEN_HYPERVISOR_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Sheng Yang6153.98%116.67%
Stefano Stabellini1916.81%116.67%
Jeremy Fitzhardinge1916.81%116.67%
Andrew Lutomirski87.08%116.67%
Jason (Hui) Wang32.65%116.67%
H. Peter Anvin32.65%116.67%
Total113100.00%6100.00%
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