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Date: Thu, 12 Jul 2012 11:11:16 +0300
From: Avi Kivity <avi@redhat.com>
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To: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
CC: Christian Borntraeger <borntraeger@de.ibm.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>,
        Marcelo Tosatti <mtosatti@redhat.com>, Ingo Molnar <mingo@redhat.com>,
        Rik van Riel <riel@redhat.com>, S390 <linux-s390@vger.kernel.org>,
        Carsten Otte <cotte@de.ibm.com>, KVM <kvm@vger.kernel.org>,
        chegu vinod <chegu_vinod@hp.com>,
        "Andrew M. Theurer" <habanero@linux.vnet.ibm.com>,
        LKML <linux-kernel@vger.kernel.org>, X86 <x86@kernel.org>,
        Gleb Natapov <gleb@redhat.com>, linux390@de.ibm.com,
        Srivatsa Vaddagiri <srivatsa.vaddagiri@gmail.com>,
        Joerg Roedel <joerg.roedel@amd.com>,
        Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>,
        Alexander Graf <agraf@suse.de>, Paul Mackerras <paulus@samba.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH RFC 0/2] kvm: Improving directed yield in PLE handler
References: <20120709062012.24030.37154.sendpatchset@codeblue> <4FFA8E5E.3070108@de.ibm.com> <4FFD422B.9060008@redhat.com> <4FFD52CD.7040403@de.ibm.com> <4FFD5DA3.3010001@redhat.com> <4FFD6100.8050202@de.ibm.com> <4FFD65E0.500@redhat.com> <4FFE5C9C.9070001@linux.vnet.ibm.com>
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On 07/12/2012 08:11 AM, Raghavendra K T wrote:
>> Ah, I thouht you objected to the CONFIG var.  Maybe call it
>> cpu_relax_intercepted since that's the linuxy name for the instruction.
>>
> 
> Ok, just to be on same page. 'll have :
> 1. cpu_relax_intercepted instead of  pause_loop_exited.
> 
> 2. CONFIG_KVM_HAVE_CPU_RELAX_INTERCEPT which is unconditionally
> selected for x86 and s390
> 
> 3. make request mechanism to clear cpu_relax_intercepted.
> 
> ('ll do same thing for s390 also but have not seen s390 code using
> request mechanism, so not sure if it ok.. otherwise we have to clear
> unconditionally for s390 before guest enter and for x86 we have to move
> make_request back to vmx/svm).
> will post V3 with these changes.

You can leave the s390 changes to the s390 people; just make sure the
generic code is ready.

-- 
error compiling committee.c: too many arguments to function