From: David Gibson <david@gibson.dropbear.id.au>
To: Andrew Jones <drjones@redhat.com>
Cc: Laurent Vivier <lvivier@redhat.com>,
kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, thuth@redhat.com,
dgibson@redhat.com, agraf@suse.de, pbonzini@redhat.com
Subject: Re: [kvm-unit-tests PATCH v2 00/14] ppc64: initial drop
Date: Mon, 15 Feb 2016 09:43:10 +1100 [thread overview]
Message-ID: <20160214224310.GF2732@voom.fritz.box> (raw)
In-Reply-To: <20160212134420.255vmjqcxrdhqxxc@hawk.localdomain>
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On Fri, Feb 12, 2016 at 02:44:20PM +0100, Andrew Jones wrote:
> On Fri, Feb 12, 2016 at 11:57:51AM +0100, Andrew Jones wrote:
> > On Fri, Feb 12, 2016 at 11:31:32AM +0100, Laurent Vivier wrote:
> > > I have nothing at all. It hangs.
> >
> > Damn. I'll need to get a machine where the problems reproduce to debug.
>
> I got a machine, an lpar, so using kvm_pr. I immediately hit a problem.
> Hung, no output. I was hitting the assert you found earlier, due to
> assuming a single memory region. The lack of output and rtas-poweroff were
> due to 'sc 1' being broken on this machine. I can fix that by patching
> like SLOF does, see [*]. Although I'm not 100% sure how I want to approach
> it yet.
I'm guessing your test machine was a PowerVM LPAR rather than a KVM
LPAR. If you can find a KVM LPAR (IBM host or RHEV host, doesn't
matter) things should work better. KVM includes a hack for this
situation: an sc 1 coming from guest usermode is redirected to the
guest kernel, instead of immediately returning H_PRIVILEGE, which
allows the L0 guest / L1 host's kvm_pr to handle it.
> There are enough things to fix now that I should probably spin another
> version before you bother retesting on the PowerMac. I'll pull something
> together soon.
>
> Thanks,
> drew
>
> [*] http://git.qemu-project.org/?p=SLOF.git;a=patch;h=dd53579ae82bed0654dd3e4b3052ef2cac58b5f4
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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prev parent reply other threads:[~2016-02-15 0:04 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 18:53 [kvm-unit-tests PATCH v2 00/14] ppc64: initial drop Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 01/14] lib: asm-generic: add missing casts Andrew Jones
2016-02-12 12:05 ` Thomas Huth
2016-02-12 13:58 ` Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 02/14] lib: share arm-selftest utility functions Andrew Jones
2016-02-12 12:40 ` Thomas Huth
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 03/14] config: no need to mix arch makefiles Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 04/14] powerpc/ppc64: start skeleton framework Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 05/14] powerpc/pp64: ppc-ify makefiles and linker script Andrew Jones
2016-02-09 17:54 ` [kvm-unit-tests PATCH] align toc to 256 bytes Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 06/14] powerpc/ppc64: add boot rom source Andrew Jones
2016-02-12 6:27 ` Thomas Huth
2016-02-12 10:07 ` Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 07/14] powerpc/ppc64: add bootloader to bounce into memory Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 08/14] powerpc/ppc64: add HV putchar Andrew Jones
2016-02-12 17:08 ` Thomas Huth
2016-02-12 17:45 ` Thomas Huth
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 09/14] powerpc/ppc64: adapt arm's setup Andrew Jones
2016-02-12 11:50 ` Thomas Huth
2016-02-12 13:59 ` Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 10/14] powerpc/ppc64: relocate linker VMAs Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 11/14] powerpc/ppc64: add run script and unittests.cfg Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 12/14] mkstandalone: add support for powerpc Andrew Jones
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 13/14] powerpc/ppc64: add RTAS support Andrew Jones
2016-02-12 17:51 ` Thomas Huth
2016-02-08 18:53 ` [kvm-unit-tests PATCH v2 14/14] powerpc/ppc64: HACK: make a fake debug-exit Andrew Jones
2016-02-12 18:07 ` Thomas Huth
2016-02-12 22:50 ` Paolo Bonzini
2016-02-09 17:49 ` [kvm-unit-tests PATCH v2 00/14] ppc64: initial drop Andrew Jones
2016-02-10 14:27 ` Paolo Bonzini
2016-02-11 11:56 ` Andrew Jones
2016-02-11 12:36 ` Paolo Bonzini
2016-02-11 13:36 ` Laurent Vivier
2016-02-11 15:29 ` Andrew Jones
2016-02-11 16:44 ` Laurent Vivier
2016-02-11 17:22 ` Andrew Jones
2016-02-11 17:47 ` Laurent Vivier
2016-02-12 10:06 ` Andrew Jones
2016-02-12 10:31 ` Laurent Vivier
2016-02-12 10:57 ` Andrew Jones
2016-02-12 13:44 ` Andrew Jones
2016-02-14 22:43 ` David Gibson [this message]
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