[thirdparty/kernel/linux.git] / arch / x86 / include / asm / xen / events.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_XEN_EVENTS_H
#define _ASM_X86_XEN_EVENTS_H

enum ipi_vector {
	XEN_RESCHEDULE_VECTOR,
	XEN_CALL_FUNCTION_VECTOR,
	XEN_CALL_FUNCTION_SINGLE_VECTOR,
	XEN_SPIN_UNLOCK_VECTOR,
	XEN_IRQ_WORK_VECTOR,
	XEN_NMI_VECTOR,

	XEN_NR_IPIS,
};

static inline int xen_irqs_disabled(struct pt_regs *regs)
{
	return raw_irqs_disabled_flags(regs->flags);
}

/* No need for a barrier -- XCHG is a barrier on x86. */
#define xchg_xen_ulong(ptr, val) xchg((ptr), (val))

extern int xen_have_vector_callback;

/*
 * Events delivered via platform PCI interrupts are always
 * routed to vcpu 0 and hence cannot be rebound.
 */
static inline bool xen_support_evtchn_rebind(void)
{
	return (!xen_hvm_domain() || xen_have_vector_callback);
}

#endif /* _ASM_X86_XEN_EVENTS_H */
Commit	Line	Data
	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	#ifndef _ASM_X86_XEN_EVENTS_H
	3	#define _ASM_X86_XEN_EVENTS_H
	4
	5	enum ipi_vector {
	6	XEN_RESCHEDULE_VECTOR,
	7	XEN_CALL_FUNCTION_VECTOR,
	8	XEN_CALL_FUNCTION_SINGLE_VECTOR,
	9	XEN_SPIN_UNLOCK_VECTOR,
	10	XEN_IRQ_WORK_VECTOR,
	11	XEN_NMI_VECTOR,
	12
	13	XEN_NR_IPIS,
	14	};
	15
	16	static inline int xen_irqs_disabled(struct pt_regs *regs)
	17	{
	18	return raw_irqs_disabled_flags(regs->flags);
	19	}
	20
	21	/* No need for a barrier -- XCHG is a barrier on x86. */
	22	#define xchg_xen_ulong(ptr, val) xchg((ptr), (val))
	23
	24	extern int xen_have_vector_callback;
	25
	26	/*
	27	* Events delivered via platform PCI interrupts are always
	28	* routed to vcpu 0 and hence cannot be rebound.
	29	*/
	30	static inline bool xen_support_evtchn_rebind(void)
	31	{
	32	return (!xen_hvm_domain() \|\| xen_have_vector_callback);
	33	}
	34
	35	#endif /* _ASM_X86_XEN_EVENTS_H */