Change Details

Some PCI register of passthru devices require a special handling. E. g. MSI registers are emulated by bhyve. Instead of using many if's for each special case, use different handlers. Each passthru device has an own set of handlers. This patch uses handlers to emulate some PCI header register. It can be expanded to use a special handler for cmd/msi/... register accesses in the future. Note: It might add more complexity for now. However, it'll simplify the emulation of some special registers like those used by GVT-d (see D26209).

Some PCI register of passthru devices require a special handling. E. g. MSI registers are emulated by bhyve. Additionally, some PCI devices like Intel's integrated graphics device require that some PCI registers are handled in a non standard way. Instead of using many if's for each special case, use different handlers. Each passthru device has an own set of handlers. At the moment, this patch only uses handlers to emulate some PCI header register. It can be expanded to use a special handler for cmd/msi/... register accesses in the future.

Some PCI register of passthru devices require a special handling. E. g. MSI registers are emulated by bhyve. Additionally, some PCI devices like Intel's integrated graphics device require that some PCI registers are handled in a non standard way. Instead of using many if's for each special case, use different handlers. Each passthru device has an own set of handlers. This patch uses handlers to emulate some PCI header register.At the moment, It can be expanded to use a specialthis patch only uses handler for cmd/msi/... register accesses in the future. s to emulate some PCI header register. Note: It might add more complexityIt can be expanded to use a special handler for now. However, cmd/msi/... it'll simplify the emulation of some special registers like those used by GVT-d (see D26209) accesses in the future.