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* msi.h
* Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <>.
#ifndef QEMU_MSI_H
#define QEMU_MSI_H
#include "qemu-common.h"
#include "pci.h"
bool msi_enabled(const PCIDevice *dev);
int msi_init(struct PCIDevice *dev, uint8_t offset,
unsigned int nr_vectors, bool msi64bit, bool msi_per_vector_mask);
void msi_uninit(struct PCIDevice *dev);
void msi_reset(PCIDevice *dev);
void msi_notify(PCIDevice *dev, unsigned int vector);
void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len);
unsigned int msi_nr_vectors_allocated(const PCIDevice *dev);
static inline bool msi_present(const PCIDevice *dev)
return dev->cap_present & QEMU_PCI_CAP_MSI;
#endif /* QEMU_MSI_H */
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