On 03/03/2015 12:51 AM, Alexander Graf wrote:


On 02.03.15 14:42, Andreas Färber wrote:
Am 02.03.2015 um 14:37 schrieb Alexander Graf:
On 01.03.15 01:31, Andreas Färber wrote:
This reverts commit 5b79b1cadd3e565b6d1a5ba59764bd47af58b271 to avoid
double-registration of types:

   Registering `POWER5+-powerpc64-cpu' which already exists

Taking the textual description of a CPU type as part of a new type name
is plain wrong, and so is unconditionally registering a new type here.

Cc: Alexey Kardashevskiy <a...@ozlabs.ru>
Cc: qemu-sta...@nongnu.org
Signed-off-by: Andreas Färber <afaer...@suse.de>

Doesn't this break p8 support?

Maybe, but p5 support was in longer and this is definitely a regression
and really really wrong. If you know a way to fix it without handing it
back to the IBM guys for more thought, feel free to give it a shot.

I honestly don't fully remember what this was about. Wasn't this our
special KVM class that we use to create a compatible cpu type on the fly?

Alexey, please take a look at it.


I sent a note yesterday :-/ Here it is again:

With this revert, running qemu with HV KVM and -cpu POWER7 fails on real POWER7 machine as my machine has pvr 003f 0201 and POWER7 is an alias of POWER7_v2.3 (pvr 003f 0203); and this is what I tried to fix at the first place. QEMU looks at classes first, and if not found - at aliases, so this worked.

I would rename "POWER5+" to "POWER5+_0.0" and make "POWER5+" an alias for POWER5+_v2.1 (or POWER5+_0.0).



--
Alexey
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