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14de9bab9e
Will be used for generating and distributing MSI messages, both in emulation mode and under KVM. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/*
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* msi.h
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*
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* Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
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* VA Linux Systems Japan K.K.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QEMU_MSI_H
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#define QEMU_MSI_H
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#include "qemu-common.h"
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#include "pci.h"
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struct MSIMessage {
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uint64_t address;
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uint32_t data;
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};
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extern bool msi_supported;
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bool msi_enabled(const PCIDevice *dev);
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int msi_init(struct PCIDevice *dev, uint8_t offset,
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unsigned int nr_vectors, bool msi64bit, bool msi_per_vector_mask);
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void msi_uninit(struct PCIDevice *dev);
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void msi_reset(PCIDevice *dev);
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void msi_notify(PCIDevice *dev, unsigned int vector);
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void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len);
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unsigned int msi_nr_vectors_allocated(const PCIDevice *dev);
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static inline bool msi_present(const PCIDevice *dev)
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{
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return dev->cap_present & QEMU_PCI_CAP_MSI;
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}
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#endif /* QEMU_MSI_H */
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