From 3f2546b2ef55b661fd8dd69682b38992225e86f6 Mon Sep 17 00:00:00 2001 From: fishsoupisgood Date: Mon, 29 Apr 2019 01:17:54 +0100 Subject: Initial import of qemu-2.4.1 --- include/hw/pci/msi.h | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 include/hw/pci/msi.h (limited to 'include/hw/pci/msi.h') diff --git a/include/hw/pci/msi.h b/include/hw/pci/msi.h new file mode 100644 index 00000000..50e452bd --- /dev/null +++ b/include/hw/pci/msi.h @@ -0,0 +1,51 @@ +/* + * msi.h + * + * Copyright (c) 2010 Isaku Yamahata + * 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 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * 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 "hw/pci/pci.h" + +struct MSIMessage { + uint64_t address; + uint32_t data; +}; + +extern bool msi_supported; + +void msi_set_message(PCIDevice *dev, MSIMessage msg); +MSIMessage msi_get_message(PCIDevice *dev, unsigned int vector); +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_send_message(PCIDevice *dev, MSIMessage msg); +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 */ -- cgit v1.2.3