From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) (using TLSv1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id F33FD1A0010 for ; Tue, 17 Jun 2014 19:25:05 +1000 (EST) Message-ID: <53A0096D.3020108@suse.de> Date: Tue, 17 Jun 2014 11:25:01 +0200 From: Alexander Graf MIME-Version: 1.0 To: Benjamin Herrenschmidt Subject: Re: [PATCH] powerpc/kvm: support to handle sw breakpoint References: <1402780097-28827-1-git-send-email-maddy@linux.vnet.ibm.com> <53A0022D.5020108@suse.de> <1402996939.7661.126.camel@pasglop> In-Reply-To: <1402996939.7661.126.camel@pasglop> Content-Type: text/plain; charset=UTF-8; format=flowed Cc: linuxppc-dev@lists.ozlabs.org, Madhavan Srinivasan , paulus@samba.org, kvm-ppc@vger.kernel.org, kvm@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 17.06.14 11:22, Benjamin Herrenschmidt wrote: > On Tue, 2014-06-17 at 10:54 +0200, Alexander Graf wrote: >> Also, why don't we use twi always or something else that actually is >> defined as illegal instruction? I would like to see this shared with >> book3s_32 PR. > twi will be directed to the guest on HV no ? We want a real illegal > because those go to the host (for potential emulation by the HV). Ah, good point. I guess we need different one for PR and HV then to ensure compatibility with older ISAs on PR. Alex > I'm > trying to see if I can get the architect to set one in stone in a future > proof way. > > Cheers, > Ben. >