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msi: Add msi_get_message()

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vfio-pci and pci-assign both do this on their own for setting up
direct MSI injection through KVM.  Provide a helper function for
this in MSI code.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Alex Williamson 2012-10-02 13:22:07 -06:00 • committed by Michael S. Tsirkin
parent 4774d7b258
commit 39b9bc626a
2 changed files with 30 additions and 16 deletions
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1
hw/msi.h
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@ -32,6 +32,7 @@ struct MSIMessage {
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);