932d4a42af
Added (msi|msix)_set_message() function for whoever might want to use them. Currently msi_notify()/msix_notify() write to these vectors to signal the guest about an interrupt so the correct values have to written there by the guest or QEMU. For example, POWER guest never initializes MSI/MSIX vectors, instead it uses RTAS hypercalls. So in order to support MSIX for virtio-pci on POWER we have to initialize MSI/MSIX message from QEMU. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
#ifndef QEMU_MSIX_H
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#define QEMU_MSIX_H
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#include "qemu-common.h"
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#include "pci.h"
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void msix_set_message(PCIDevice *dev, int vector, MSIMessage msg);
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int msix_init(PCIDevice *dev, unsigned short nentries,
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MemoryRegion *table_bar, uint8_t table_bar_nr,
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unsigned table_offset, MemoryRegion *pba_bar,
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uint8_t pba_bar_nr, unsigned pba_offset, uint8_t cap_pos);
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int msix_init_exclusive_bar(PCIDevice *dev, unsigned short nentries,
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uint8_t bar_nr);
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void msix_write_config(PCIDevice *dev, uint32_t address, uint32_t val, int len);
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void msix_uninit(PCIDevice *dev, MemoryRegion *table_bar,
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MemoryRegion *pba_bar);
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void msix_uninit_exclusive_bar(PCIDevice *dev);
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unsigned int msix_nr_vectors_allocated(const PCIDevice *dev);
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void msix_save(PCIDevice *dev, QEMUFile *f);
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void msix_load(PCIDevice *dev, QEMUFile *f);
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int msix_enabled(PCIDevice *dev);
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int msix_present(PCIDevice *dev);
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int msix_vector_use(PCIDevice *dev, unsigned vector);
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void msix_vector_unuse(PCIDevice *dev, unsigned vector);
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void msix_unuse_all_vectors(PCIDevice *dev);
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void msix_notify(PCIDevice *dev, unsigned vector);
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void msix_reset(PCIDevice *dev);
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int msix_set_vector_notifiers(PCIDevice *dev,
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MSIVectorUseNotifier use_notifier,
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MSIVectorReleaseNotifier release_notifier);
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void msix_unset_vector_notifiers(PCIDevice *dev);
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#endif
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