Re: [Qemu-devel] AHCI Port Interrupt Enable register cleaning on soft reset

[Alexander Graf]

Am 11.09.2011 um 16:43 schrieb Alexander Motin <address@hidden>:

> Hi.
> 
> I've found that FreeBSD AHCI driver doesn't work with AHCI hardware
> emulation of QEMU 0.15.0. I believe the problem is on QEMU's side. As I
> see, it clears port's Interrupt Enable register each time when reset of
> any level happens. Is is reasonable for the global controller reset. It
> is probably not good, but acceptable for FreeBSD driver for the port
> hard reset. But it is IMO wrong for the device soft reset. None of real
> hardware I know behaves that way.
> 
> This patch fixes the problem for me:
> http://people.freebsd.org/~mav/qemu.ahci.patch

Ah, cool! So FreeBSD works with AHCI using this patch? Please send it again as 
an inline patch (if really really hard not 100% important) and add a 
signed-off-by line (very important) to the patch.


Alex