From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: util-linux-owner@vger.kernel.org Received: from mx1.redhat.com ([209.132.183.28]:34216 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751347AbaEVIsc (ORCPT ); Thu, 22 May 2014 04:48:32 -0400 Date: Thu, 22 May 2014 10:48:20 +0200 From: Karel Zak To: Ruediger Meier , Heiko Carstens Cc: util-linux@vger.kernel.org, Stanislav Brabec , Petr Uzel Subject: Re: [PATCH 3/5] lscpu: detect OS/400 and pHyp hypervisors Message-ID: <20140522084820.GE2898@x2.net.home> References: <1400600551-7227-1-git-send-email-sweet_f_a@gmx.de> <1400600551-7227-4-git-send-email-sweet_f_a@gmx.de> <201405220103.43871.sweet_f_a@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <201405220103.43871.sweet_f_a@gmx.de> Sender: util-linux-owner@vger.kernel.org List-ID: Heiko, can you help us to classify pSeries and iSeries virtualization? See below. Is it FULL or PARA virtualization? Thanks! Karel On Thu, May 22, 2014 at 01:03:43AM +0200, Ruediger Meier wrote: > > + [HYPER_OS400] = "OS/400", > > + [HYPER_PHYP] = "pHyp" > > }; > > > > const int hv_vendor_pci[] = { > > @@ -574,6 +577,51 @@ read_hypervisor_cpuid(struct lscpu_desc *desc) > > static void > > read_hypervisor_cpuid(struct lscpu_desc *desc __attribute__((__unused__))) > > { > > +#ifdef __powerpc__ > > + /* powerpc: > > + * IBM iSeries: legacy, if /proc/iSeries exists, its para-virtualized on top of OS/400 > > According to this comment ... > > > + * IBM pSeries: always has a hypervisor > > + * if partition-name is "full", its kind of "bare-metal": full-system-partition > > + * otherwise its some partition created by Hardware Management Console > > + * in any case, its always some sort of HVM > > + * KVM: "linux,kvm" in /hypervisor/compatible indicates a KVM guest > > + * Xen: not in use, not detected > > + */ > > + if (path_exist("/proc/iSeries")) { > > + desc->hyper = HYPER_OS400; > > + desc->virtype = VIRT_FULL; > > ... shouldn't this be VIRT_PARA? Somebody who knows this may correct this. > > > + } else if (path_exist(_PATH_PROC_DEVICETREE "/ibm,partition-name")) { > > + FILE *fd; > > + desc->hyper = HYPER_PHYP; > > + desc->virtype = VIRT_FULL; > > Maybe more obvious here for pSeries where p seems to stand for para > http://www.ibm.com/developerworks/aix/library/au-syspvirtualization/index.html?S_TACT=105AGX99&S_CMP=CP -- Karel Zak http://karelzak.blogspot.com