posted_intr.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __KVM_X86_VMX_POSTED_INTR_H
#define __KVM_X86_VMX_POSTED_INTR_H

#include <linux/bitmap.h>
#include <linux/find.h>
#include <linux/kvm_host.h>

#include <asm/posted_intr.h>

void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu);
void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu);
void pi_wakeup_handler(void);
void __init pi_init_cpu(int cpu);
void pi_apicv_pre_state_restore(struct kvm_vcpu *vcpu);
bool pi_has_pending_interrupt(struct kvm_vcpu *vcpu);
int vmx_pi_update_irte(struct kvm_kernel_irqfd *irqfd, struct kvm *kvm,
		       unsigned int host_irq, uint32_t guest_irq,
		       struct kvm_vcpu *vcpu, u32 vector);
void vmx_pi_start_bypass(struct kvm *kvm);

static inline int pi_find_highest_vector(struct pi_desc *pi_desc)
{
	int vec;

	vec = find_last_bit(pi_desc->pir, 256);
	return vec < 256 ? vec : -1;
}

#endif /* __KVM_X86_VMX_POSTED_INTR_H */