From: Avi Kivity <avi@redhat.com>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Marcelo Tosatti <mtosatti@redhat.com>, kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: Fix MAXPHYADDR calculation when cpuid does not support it
Date: Sun, 11 Apr 2010 16:48:41 +0300 [thread overview]
Message-ID: <4BC1D339.20704@redhat.com> (raw)
In-Reply-To: <4BC1D26E.9080706@cs.helsinki.fi>
On 04/11/2010 04:45 PM, Pekka Enberg wrote:
> Pekka Enberg wrote:
>> Avi Kivity wrote:
>>>> Hmm, doesn't seem to work here. I still that triple fault in guest.
>>>
>>> Can you add a printk to see what value is returned and why?
>>
>> Argh, it's a off-by one bug in my userspace tool... So the CPU really
>> does support 0x80000008 and I'm just an idiot. :-)
>
> So to explain this a bit more: I'm setting 0x80000000 to 0x80000008
> but failing to install an entry for 0x80000008. I don't quite
> understand why kvm_find_cpuid_entry() doesn't return NULL in this case?
cpuid is defined to return the highest entry if it doesn't find a match.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2010-04-11 13:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-11 12:33 [PATCH] KVM: Fix MAXPHYADDR calculation when cpuid does not support it Avi Kivity
2010-04-11 12:35 ` Avi Kivity
2010-04-11 13:32 ` Pekka Enberg
2010-04-11 13:33 ` Avi Kivity
2010-04-11 13:35 ` Pekka Enberg
2010-04-11 13:45 ` Pekka Enberg
2010-04-11 13:48 ` Avi Kivity [this message]
2010-04-11 13:53 ` Pekka Enberg
2010-04-11 13:55 ` Avi Kivity
2010-04-11 13:59 ` Pekka Enberg
2010-04-12 16:37 ` Marcelo Tosatti
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