Am 05.05.14 16:57, schrieb Olof Johansson:
[Now without HTML email -- it's what you get for cc:ing me at work
instead of my upstream email :)]
2014-05-05 7:43 GMT-07:00 Alexander Graf <ag...@suse.de>:
On 05/05/2014 04:26 PM, Aneesh Kumar K.V wrote:
Alexander Graf <ag...@suse.de> writes:
On 05/04/2014 07:21 PM, Aneesh Kumar K.V wrote:
Although it's optional IBM POWER cpus always had DAR value set on
alignment interrupt. So don't try to compute these values.
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
---
Changes from V3:
* Use make_dsisr instead of checking feature flag to decide whether to use
saved dsisr or not
....
ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst)
{
+#ifdef CONFIG_PPC_BOOK3S_64
+ return vcpu->arch.fault_dar;
How about PA6T and G5s?
Paul mentioned that BOOK3S always had DAR value set on alignment
interrupt. And the patch is to enable/collect correct DAR value when
running with Little Endian PR guest. Now to limit the impact and to
enable Little Endian PR guest, I ended up doing the conditional code
only for book3s 64 for which we know for sure that we set DAR value.
Yes, and I'm asking whether we know that this statement holds true for PA6T and
G5 chips which I wouldn't consider IBM POWER. Since the G5 is at least
developed by IBM, I'd assume its semantics here are similar to POWER4, but for
PA6T I wouldn't be so sure.
Thanks for looking out for us, obviously IBM doesn't (based on the
reply a minute ago).
In the end, since there's been no work to enable KVM on PA6T, I'm not
too worried. I guess it's one more thing to sort out (and check for)
whenever someone does that.
I definitely don't have cycles to deal with that myself at this time.
I can help find hardware for someone who wants to, but even then I'm
guessing the interest is pretty limited.
-Olof
--
To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Just for info: "PR" KVM works great on my PA6T machine. I booted the
Lubuntu 14.04 PowerPC live DVD on a QEMU virtual machine with "PR" KVM
successfully. But Mac OS X Jaguar, Panther, and Tiger don't boot with
KVM on Mac-on-Linux and QEMU. See
http://forum.hyperion-entertainment.biz/viewtopic.php?f=35&t=1747.
-- Christian
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
