qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH 18/19] target-ppc: Enhance the CPU node labels f


From: Andreas Färber
Subject: Re: [Qemu-devel] [PATCH 18/19] target-ppc: Enhance the CPU node labels for the guest device tree for pseries.
Date: Mon, 08 Jul 2013 11:02:27 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130620 Thunderbird/17.0.7

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Am 08.07.2013 03:09, schrieb David Gibson:
> On Sat, Jul 06, 2013 at 11:54:15PM +1000, Alexey Kardashevskiy
> wrote:
>> @@ -1342,6 +1346,13 @@ static void
>> ppc_spapr_init(QEMUMachineInitArgs *args) 
>> register_savevm_live(NULL, "spapr/htab", -1, 1, 
>> &savevm_htab_handlers, spapr);
>> 
>> +    /* Ensure that cpu_model is correctly reflected for a KVM
>> guest */ +    if (kvm_enabled() && !strcmp(cpu_model, "host")) { 
>> +        asm ("mfpvr %0" +            : "=r"(pvr)); +
>> cpu_model = ppc_cpu_alias_by_pvr(pvr);
> 
> This needs to be protected by an ifdef CONFIG_KVM or similar.  If
> the compiler optimization level is turned down, so that it doesn't 
> recognize that the kvm_enabled() is always false, then this could 
> attempt to compile the ppc asm instructions on an x86 (or
> whatever) host.

This hunk can be completely replaced by QOM mechanisms - just didn't
get to replying yet...

Andreas

- -- 
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nrnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imend￶rffer; HRB 16746 AG Nrnberg
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
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=2tHJ
-----END PGP SIGNATURE-----



reply via email to

[Prev in Thread] Current Thread [Next in Thread]