Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown.

[Avi Kivity]

Samuel Thibault wrote:
> > On real hardware if you press reset button
> >     
>
> That's when you press the reset button.  When you have a triple fault
> the IDE board won't be resetted.
>
>   

Why not?  IIUC triple fault is exported as a cpu pin, which the 
chipset/motherboard wires into the board-level reset line.

> > Currently BOCHS BIOS doesn't check that IDE is busy (it doesn't even
> > know that HW is present) and sends overlapping command.
> >     
>
> Then fix it.
>   

I think the bios can expect the IDE hardware (or any other device) to be 
quiescent on entry.  It doesn't make sense to initiate an explicit reset 
immediately after boot; that would slow things down.

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