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There are plans afoot to use pci_restore_msi_state() to restore MSI state after a device reset. In order for this to work for the RTAS MSI backend, we need to read back the MSI message from config space after it has been setup by firmware. This should be sufficient for restoring the MSI state after a device reset, however we will need to revisit this for suspend to disk if that is ever implemented on pseries. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> |
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