Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756224AbYBQU5O (ORCPT ); Sun, 17 Feb 2008 15:57:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752893AbYBQU47 (ORCPT ); Sun, 17 Feb 2008 15:56:59 -0500 Received: from hs-out-0708.google.com ([64.233.178.241]:31936 "EHLO hs-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752831AbYBQU46 (ORCPT ); Sun, 17 Feb 2008 15:56:58 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=wIbKmj7G8F/6SnC38Jy1d9KOAsGURoyxtoG+hIm4uByatu/YD7YAD3G7vf2+fmqu1dMv0L5tTTsXER28Osc15sIOb1JnpspG5YgCD4BIfiy1gUO59GUX4TfnjjR9+vpSOUWynGmOwhuXo9USZg+6uwtp0t+VlSLPH+5eEGh65j4= Message-ID: <5d6222a80802171256l6e178eb8h1080bfd5a6b95ef3@mail.gmail.com> Date: Sun, 17 Feb 2008 18:56:56 -0200 From: "Glauber Costa" To: "Ingo Molnar" Subject: Re: [PATCH 4/5] [PATCH] introduce paravirt helpers Cc: "Glauber Costa" , linux-kernel@vger.kernel.org, akpm@linux-foundation.org, tglx@linutronix.de, ehabkost@redhat.com, jeremy@goop.org, avi@qumranet.com, anthony@codemonkey.ws, virtualization@lists.linux-foundation.org, ak@suse.de, chrisw@sous-sol.org, kiran@scalemp.com, shai@scalemp.com In-Reply-To: <20080217180509.GW6006@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1202757365-18634-1-git-send-email-gcosta@redhat.com> <1202757365-18634-2-git-send-email-gcosta@redhat.com> <1202757365-18634-3-git-send-email-gcosta@redhat.com> <1202757365-18634-4-git-send-email-gcosta@redhat.com> <20080217180509.GW6006@elte.hu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1130 Lines: 35 On Feb 17, 2008 4:05 PM, Ingo Molnar wrote: > > * Glauber Costa wrote: > > > config X86_VSMP > > bool "Support for ScaleMP vSMP" > > depends on X86_64 && PCI > > - help > > + select PARAVIRT > > + help > > hm, what's the idea here? guys from scalemp can probably give a better picture if needed, but in a nutshell, there are two aspects involved with the vsmp support. The first one is special L1 alignments, and the second, specialized irq handling routines. Only the second one is paravirt in itself, and are the ones addressed in this patch. The specialized routines now goes through paravirt ops. So when using a vsmp machine, paravirt has to be selected, in order to enable such functions. -- Glauber Costa. "Free as in Freedom" http://glommer.net "The less confident you are, the more serious you have to act." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/