Re: [PATCH 08/20] nubus: generate bus error when attempting to access empty slots

2021-09-12 Thread Philippe Mathieu-Daudé
On 9/12/21 9:49 AM, Mark Cave-Ayland wrote: > According to "Designing Cards and Drivers for the Macintosh Family" any > attempt > to access an unimplemented address location on Nubus generates a bus error. > MacOS > uses a custom bus error handler to detect empty Nubus slots, and with the > curr

[PATCH 08/20] nubus: generate bus error when attempting to access empty slots

2021-09-12 Thread Mark Cave-Ayland
According to "Designing Cards and Drivers for the Macintosh Family" any attempt to access an unimplemented address location on Nubus generates a bus error. MacOS uses a custom bus error handler to detect empty Nubus slots, and with the current implementation assumes that all slots are occupied as