1108b2f8a9
msi_init() reports errors with error_report(), which is wrong when it's used in realize(). Fix by converting it to Error. Fix its callers to handle failure instead of ignoring it. For those callers who don't handle the failure, it might happen: when user want msi on, but he doesn't get what he want because of msi_init fails silently. cc: Gerd Hoffmann <kraxel@redhat.com> cc: John Snow <jsnow@redhat.com> cc: Dmitry Fleytman <dmitry@daynix.com> cc: Jason Wang <jasowang@redhat.com> cc: Michael S. Tsirkin <mst@redhat.com> cc: Hannes Reinecke <hare@suse.de> cc: Paolo Bonzini <pbonzini@redhat.com> cc: Alex Williamson <alex.williamson@redhat.com> cc: Markus Armbruster <armbru@redhat.com> cc: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.com>
53 lines
1.7 KiB
C
53 lines
1.7 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 "hw/pci/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_nonbroken;
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void msi_set_message(PCIDevice *dev, MSIMessage msg);
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MSIMessage msi_get_message(PCIDevice *dev, unsigned int vector);
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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,
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bool msi_per_vector_mask, Error **errp);
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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_send_message(PCIDevice *dev, MSIMessage msg);
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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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