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dcf0926e9b
It is more accurate to check if KVM is enabled, instead of having the architecture say so. Architectures always "have" KVM, so for example checking CONFIG_HAVE_KVM in x86 code is pointless, but if KVM is disabled in a specific build, there is no need for support code. Alternatively, many of the #ifdefs could simply be deleted. However, this would add completely dead code. For example, when KVM is disabled, there should not be any posted interrupts, i.e. NOT wiring up the "dummy" handlers and treating IRQs on those vectors as spurious is the right thing to do. Cc: x86@kernel.org Cc: kbingham@kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_IRQ_H
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#define _ASM_X86_IRQ_H
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/*
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* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
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*
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* IRQ/IPI changes taken from work by Thomas Radke
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* <tomsoft@informatik.tu-chemnitz.de>
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*/
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#include <asm/apicdef.h>
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#include <asm/irq_vectors.h>
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/*
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* The irq entry code is in the noinstr section and the start/end of
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* __irqentry_text is emitted via labels. Make the build fail if
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* something moves a C function into the __irq_entry section.
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*/
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#define __irq_entry __invalid_section
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static inline int irq_canonicalize(int irq)
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{
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return ((irq == 2) ? 9 : irq);
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}
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extern int irq_init_percpu_irqstack(unsigned int cpu);
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struct irq_desc;
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extern void fixup_irqs(void);
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#if IS_ENABLED(CONFIG_KVM)
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extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
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#endif
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extern void (*x86_platform_ipi_callback)(void);
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extern void native_init_IRQ(void);
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extern void __handle_irq(struct irq_desc *desc, struct pt_regs *regs);
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extern void init_ISA_irqs(void);
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#ifdef CONFIG_X86_LOCAL_APIC
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void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
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int exclude_cpu);
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#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
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#endif
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#endif /* _ASM_X86_IRQ_H */
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