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vfio: pci: Track MSI and MSI-X capabilities
In order to properly manage the VFIO device interrupt settings, we need to keep track of both MSI and MSI-X PCI config capabilities changes. When the guest programs the device for interrupt delivery, it writes to the MSI and MSI-X capabilities. This information must be trapped and cached in order to map the physical device interrupt delivery path to the guest one. In other words, tracking MSI and MSI-X capabilites will allow us to accurately build the KVM interrupt routes. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Sebastien Boeuf
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Samuel Ortiz
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Jul 24, 2019
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