| Re: [hatari-devel] Disk driver memory access checks |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Disk driver memory access checks
- From: Uwe Seimet <Uwe.Seimet@xxxxxxxxx>
- Date: Sat, 13 Oct 2018 18:53:46 +0200
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> if transfer is made using DMA, does DMA generate bus error when trying
> to write to TOS ROM or is this not handled at all and "ignored"
> (contrary to what would happen if the cpu try to write to ROM)
>
> One could test this on real HW by just using xbios to read a floppy
> sector into ROM.
Assuming that the DMA chip generates a bus error in such a case, what's
the most similar approach in the case of nf_scsidrv? Just returning an
error code as a result of the ST memory check probably not.
Of course, I'm aware that this is a rather esoteric problem.