From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dor Laor Subject: Re: about apic in uniprocessor Date: Thu, 20 Dec 2007 12:33:44 +0200 Message-ID: <476A4508.2000501@qumranet.com> References: <0JTB00JIWTVMSU60@mail.fudan.edu.cn> Reply-To: dor.laor-atKUWr5tajBWk0Htik3J/w@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0778417246==" Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Pengcheng Liu Return-path: In-Reply-To: <0JTB00JIWTVMSU60-YCjw5Q+D+7ffZEITPx7jRP8+0UxHXcjY@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org This is a multi-part message in MIME format. --===============0778417246== Content-Type: multipart/alternative; boundary="------------040207070709060008050201" This is a multi-part message in MIME format. --------------040207070709060008050201 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Pengcheng Liu wrote: > hi, I'm using kvm-48 which has apic kernel support know. > But I found when working on uniprocessor, the ioapic of kvm is not used. > Kvm only use pic when it works on uniprocessor? What's the guest OS? If it is windows with standard HAL then you must change the HAL. If it's Linux then you can add kernel cmdline param 'lapic' Does --no-kvm-irqchip changes anything? [this means user space apic] Dor > > Best Regards > > Pengcheng Liu > Software School, Fudan University > Tel: 86-021-51355363-18 > MP: 86-13472527372 > E_mail: pcliu-/yWxSo1oARqlxZx38haCkw@public.gmane.org > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services > for just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > ------------------------------------------------------------------------ > > _______________________________________________ > kvm-devel mailing list > kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > https://lists.sourceforge.net/lists/listinfo/kvm-devel > --------------040207070709060008050201 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Pengcheng Liu wrote:
hi, I'm using kvm-48 which has apic kernel support know.
But I found when working on uniprocessor, the ioapic of kvm is not used.
Kvm only use pic when it works on uniprocessor?
What's the guest OS? If it is windows with standard HAL then you must change the HAL.
If it's Linux then you can add kernel cmdline param 'lapic'
Does --no-kvm-irqchip changes anything? [this means user space apic]
Dor
 
Best Regards
 
Pengcheng Liu
Software School, Fudan University
Tel: 86-021-51355363-18
MP: 86-13472527372
E_mail: pcliu-/yWxSo1oARqlxZx38haCkw@public.gmane.org
 

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