39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
#ifndef __ASM_KVM_GUEST_BOOT_SPINLOCK_H
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#define __ASM_KVM_GUEST_BOOT_SPINLOCK_H
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/*
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* This file implements the arch-dependent parts of kvm guest
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* boot-time spin_lock()/spin_unlock() fast and slow part
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*
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* Copyright 2014 Salavat S. Guiliazov (atic@mcst.ru)
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*/
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#include <linux/types.h>
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extern void kvm_arch_boot_spin_lock_slow(void *lock);
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extern void kvm_arch_boot_spin_locked_slow(void *lock);
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extern void kvm_arch_boot_spin_unlock_slow(void *lock);
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#ifdef CONFIG_KVM_GUEST_KERNEL
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/* native guest kernel */
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#define arch_spin_relax(lock) kvm_cpu_relax()
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#define arch_read_relax(lock) kvm_cpu_relax()
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#define arch_write_relax(lock) kvm_cpu_relax()
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static inline void boot_arch_spin_lock_slow(boot_spinlock_t *lock)
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{
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kvm_arch_boot_spin_lock_slow(lock);
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}
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static inline void boot_arch_spin_locked_slow(boot_spinlock_t *lock)
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{
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kvm_arch_boot_spin_locked_slow(lock);
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}
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static inline void boot_arch_spin_unlock_slow(boot_spinlock_t *lock)
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{
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kvm_arch_boot_spin_unlock_slow(lock);
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}
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#endif /* CONFIG_KVM_GUEST_KERNEL */
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#endif /* __ASM_KVM_GUEST_BOOT_SPINLOCK_H */
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