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Re: [Qemu-ppc] Qemu pSeries AIX ADB boot

From: Thomas Huth
Subject: Re: [Qemu-ppc] Qemu pSeries AIX ADB boot
Date: Tue, 12 Jun 2012 13:13:31 +0200

Am Mon, 11 Jun 2012 14:12:32 -0500
schrieb Michael Sabino <address@hidden>:

> Actually, the POWER7 code seems to get further than the 970 in this case
> with the exception handling code disabled.
> As far as the code with the exception handling code enabled -
> I added the spr's, but an invalid program exception seems to be being
> generated which doesn't relate to the writing/reading invalid SPR. I'm not
> sure what it's origin is quite yet. Any ideas for figuring this out?

I just attached a GDB and ran a boot until $pc < 0x1000 (to catch the
exceptions), and it seems to me like this is the culprit:

   0x5814a4:    stxvd2x vs0,r9,r1

That's a new instruction, introduced in PowerISA 2.06, and I guess QEMU
does not emulate it yet and thus generates that invalid program


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