From: Andrea Bolognani <abologna@redhat.com>
To: David Gibson <david@gibson.dropbear.id.au>,
groug@kaod.org, clg@kaod.org, mdroth@linux.vnet.ibm.com,
sursingh@redhat.com, bharata@linux.vnet.ibm.com,
nikunj@linux.vnet.ibm.com
Cc: qemu-devel@nongnu.org, qemu-ppc@nongnu.org, sbobroff@redhat.com
Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCHv5 0/4] Clean up compatibility mode handling
Date: Tue, 13 Jun 2017 15:01:40 +0800 [thread overview]
Message-ID: <1497337300.27606.7.camel@redhat.com> (raw)
In-Reply-To: <20170602031507.29881-1-david@gibson.dropbear.id.au>
On Fri, 2017-06-02 at 13:15 +1000, David Gibson wrote:
> This is a rebased and revised version of my patches revising CPU
> compatiblity mode handling on ppc, last posted in November. Since
> then, many of the patches have already been merged (some for 2.9, some
> since). This is what's left.
As discussed yesterday on libvir-list, the current
implementation will abort() when the user attempts to use
a compat mode that's not valid for the host CPU, eg. on
a POWER8 host:
$ qemu-system-ppc64 \
-nodefaults \
-M pseries,accel=kvm \
-cpu host,compat=power9
Unexpected error in ppc_set_compat() at target/ppc/compat.c:135:
qemu-system-ppc64: Compatibility PVR 0x0f000005 not valid for CPU
Aborted
We should probably report the error to the user in a slightly
less destructive fashion :)
[1] https://www.redhat.com/archives/libvir-list/2017-June/msg00476.html
--
Andrea Bolognani / Red Hat / Virtualization
next prev parent reply other threads:[~2017-06-13 7:02 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-02 3:15 [Qemu-devel] [PATCHv5 0/4] Clean up compatibility mode handling David Gibson
2017-06-02 3:15 ` [Qemu-devel] [PATCHv5 1/4] qapi: add explicit null to string input and output visitors David Gibson
2017-06-02 3:15 ` [Qemu-devel] [PATCHv5 2/4] pseries: Move CPU compatibility property to machine David Gibson
2017-06-08 6:02 ` [Qemu-devel] [Qemu-ppc] " Suraj Jitindar Singh
2017-06-09 13:55 ` [Qemu-devel] " Greg Kurz
2017-06-11 12:30 ` David Gibson
2017-06-02 3:15 ` [Qemu-devel] [PATCHv5 3/4] pseries: Reset CPU compatibility mode David Gibson
2017-06-02 3:15 ` [Qemu-devel] [PATCHv5 4/4] ppc: Rework CPU compatibility testing across migration David Gibson
2017-06-14 8:28 ` Greg Kurz
2017-06-02 3:55 ` [Qemu-devel] [PATCHv5 0/4] Clean up compatibility mode handling no-reply
2017-06-02 7:23 ` David Gibson
2017-06-08 4:17 ` David Gibson
2017-06-08 6:03 ` [Qemu-devel] [Qemu-ppc] " Suraj Jitindar Singh
2017-06-08 8:57 ` [Qemu-devel] " Greg Kurz
2017-06-10 15:42 ` Andrea Bolognani
2017-06-11 12:57 ` David Gibson
2017-06-13 7:01 ` Andrea Bolognani [this message]
2017-06-13 8:09 ` [Qemu-devel] [Qemu-ppc] " David Gibson
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