From sacadmin Mon Oct 12 15:07:31 2009 Received: from tethys.sfbay.sun.com (tethys.SFBay.Sun.COM [129.146.226.92]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n9CM7VXJ029889; Mon, 12 Oct 2009 15:07:31 -0700 (PDT) Received: from tethys.sfbay.sun.com (localhost [127.0.0.1]) by tethys.sfbay.sun.com (8.14.3+Sun/8.14.3) with ESMTP id n9CM1m4q029042; Mon, 12 Oct 2009 15:01:48 -0700 (PDT) Received: (from jg@localhost) by tethys.sfbay.sun.com (8.14.3+Sun/8.14.3/Submit) id n9CM1mpW029039; Mon, 12 Oct 2009 15:01:48 -0700 (PDT) Date: Mon, 12 Oct 2009 15:01:48 -0700 (PDT) From: Jerry Gilliam Message-Id: <200910122201.n9CM1mpW029039@tethys.sfbay.sun.com> To: PSARC-record@sac.sfbay.sun.com Subject: PSMI extensions for CPU Hotplug [PSARC/2009/550 Self Review] Status: RO Content-Length: 571 Template Version: @(#)sac_nextcase 1.68 02/23/09 SMI This information is Copyright 2009 Sun Microsystems 1. Introduction 1.1. Project/Component Working Name: PSMI extensions for CPU Hotplug 1.2. Name of Document Author/Supplier: Author: Michael Corcoran 1.3 Date of This Document: 12 October, 2009 4. Technical Description See the case directory for more detail 6. Resources and Schedule 6.4. Steering Committee requested information 6.4.1. Consolidation C-team Name: ON 6.5. ARC review type: Automatic 6.6. ARC Exposure: open From jerry.gilliam@sun.com Mon Oct 12 15:25:41 2009 Received: from sunmail4.singapore.sun.com (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n9CMPeEm000444 for ; Mon, 12 Oct 2009 15:25:41 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id n9CMPW8G020659; Tue, 13 Oct 2009 06:25:34 +0800 (SGT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KRF00705AAKH400@nwk-avmta-1.sfbay.Sun.COM>; Mon, 12 Oct 2009 15:25:32 -0700 (PDT) Received: from jurassic-x4600.sfbay.sun.com ([129.146.17.59]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KRF003QUAAK8PB0@nwk-avmta-1.sfbay.Sun.COM>; Mon, 12 Oct 2009 15:25:32 -0700 (PDT) Received: from [129.146.226.92] (tethys.SFBay.Sun.COM [129.146.226.92]) by jurassic-x4600.sfbay.sun.com (8.14.3+Sun/8.14.3) with ESMTP id n9CMPVUe704334; Mon, 12 Oct 2009 15:25:31 -0700 (PDT) Date: Mon, 12 Oct 2009 15:19:49 -0700 From: Jerry Gilliam Subject: PSMI Extensions for CPU Hotplug [PSARC/2009/550 Self Review] To: PSARC-ext@sun.com, Michael Corcoran Cc: Geetanjali Krishna , Jiang Liu , sherry.moore@sun.com, Shidokht Yadegari Message-id: <4AD3AB85.6040904@sun.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 User-Agent: Thunderbird 2.0.0.21 (X11/20090323) Status: RO Content-Length: 3863 I'm sponsoring the following case on behalf of Michael Corcoran. The proposal I believe qualifies for self-review approval but I can upgrade this upgrade should anyone think otherwise. The case requests minor binding only as there is no intention to back-port these interfaces. ------------------ 1. Introduction 1.1. Project/Component Working Name: CPU hotplug for x86 systems 1.2. Name of Document Author/Supplier: Author: Geeta Krishna Gerry Liu 1.3 Date of This Document: 06 August, 2009 4. Technical Description Name: PSMI extension for state save and restore Submitter: Geeta Krishna Owner: Geeta Krishna Interest: Status: waiting fast-track Background: Previous cases on Intel PSMI interface: PSARC 1993/042 Solaris/x86 MP Support PSARC 1994/441 PSMI for Power PC PSARC 1995/422 PSMI Extensions PSARC 1997/310 PSMI Version 1.2 PSARC 2004/239 x86 PSMI Extensions for Higher Resolution Timer PSARC 2004/418 SM Extension for soft poweroff on Solaris x86 PSARC 2005/091 PSMI Extension for ADII PSARC 2006/632 PSMI extension for state save and restore Proposal: 1. New control entry point is needed for supporting CPU hotplug operations. A CPU control entry point will be added to psm_ops structure and the PSM version will be incremented to 1.7 from 1.6. The CPU control entry point and relative data structure are defined as below: typedef enum psm_cpu_op_e { PSM_CPU_ADD = 1, PSM_CPU_REMOVE, PSM_CPU_STOP } psm_cpu_op_t; typedef struct psm_cpu_request { psm_cpu_op_t pcr_cmd; union { struct { processorid_t cpuid; void *argp; } cpu_add; struct { processorid_t cpuid; } cpu_remove; struct { processorid_t cpuid; void *ctx; } cpu_stop; } req; } psm_cpu_request_t; int (*psm_cpu_ops)(psm_cpu_request_t *reqp); This CPU control interface supports following operations : PSM_CPU_ADD: add a logical CPU to PSM layer and allocate processor id. PSM_CPU_REMOVE: remove a logical CPU from PSM layer and free processor id. PSM_CPU_STOP: power off logical CPU. 2. Enhancement to platform dependent interfaces To support CPU hotplug, following interfaces and data structure will be added to platform dependent interfaces in uts/i86pc/sys/machsystm.h. typedef enum mach_cpu_add_arg_type { MACH_CPU_ARG_LOCAL_APIC, MACH_CPU_ARG_LOCAL_X2APIC, } mach_cpu_add_arg_type_t; typedef struct mach_cpu_add_arg { mach_cpu_add_arg_type_t type; union { struct { uint32_t apic_id; uint32_t proc_id; } apic; } arg; } mach_cpu_add_arg_t; extern int mach_cpu_stop(cpu_t *, void *); extern int mach_cpu_add(mach_cpu_add_arg_t *, processorid_t *); extern int mach_cpu_remove(processorid_t); These interfaces will call psm_cpu_ops in psm_ops. The new *psm_ops* structure will be in effect if PSMI_1_7 is defined. PSMI_1_7 will include the extensions defined in PSMI_1_6 interface. Backward binary compatibility for the PSM will be preserved through the check of version of PSM in the kernel. Interface levels: The project exports the following interfaces: PSMI Interface changes for version 1.7: Interface: Classification Comments psm_cpu_ops Consolidation Private psm_ops struct member 6. Resources and Schedule 6.4. Steering Committee requested information 6.4.1. Consolidation C-team Name: ON 6.5. ARC review type: FastTrack 6.6. ARC Exposure: open From johnlev@barman.uk.sun.com Mon Oct 12 15:32:20 2009 Received: from sunmail3mpk.sfbay.sun.com (sunmail3mpk.SFBay.Sun.COM [129.146.11.52]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n9CMWJol000588 for ; Mon, 12 Oct 2009 15:32:19 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by sunmail3mpk.sfbay.sun.com (8.13.8+Sun/8.13.8/ENSMAIL,v2.4) with ESMTP id n9CMWIwt024845 for <@sunmail2sca.sfbay.sun.com:PSARC-ext@sun.com>; Mon, 12 Oct 2009 15:32:19 -0700 (PDT) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KRF00B0BALTMW00@brm-avmta-1.central.sun.com> for PSARC-ext@sun.com (ORCPT PSARC-ext@sun.com); Mon, 12 Oct 2009 16:32:17 -0600 (MDT) Received: from dm-uk-02.uk.sun.com ([129.156.101.196]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KRF00C0FALSXV90@brm-avmta-1.central.sun.com> for PSARC-ext@sun.com (ORCPT PSARC-ext@sun.com); Mon, 12 Oct 2009 16:32:17 -0600 (MDT) Received: from barman.uk.sun.com (barman.UK.Sun.COM [129.156.132.12]) by dm-uk-02.uk.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n9CMWB3U013207; Mon, 12 Oct 2009 23:32:11 +0100 (BST) Received: from johnlev by barman.uk.sun.com with local (Exim 4.42) id 1MxTbh-0005db-7U; Mon, 12 Oct 2009 23:43:09 +0100 X-URL: http://jurassic.eng/~johnlev/ Date: Mon, 12 Oct 2009 23:43:09 +0100 From: John Levon Subject: Re: PSMI Extensions for CPU Hotplug [PSARC/2009/550 Self Review] In-reply-to: <4AD3AB85.6040904@sun.com> Sender: John Levon To: Jerry Gilliam Cc: PSARC-ext@sun.com, Michael Corcoran , Geetanjali Krishna , Jiang Liu , sherry.moore@sun.com, Shidokht Yadegari Message-id: <20091012224309.GA21302@barman.uk.sun.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline X-PMX-Version: 5.4.1.325704 References: <4AD3AB85.6040904@sun.com> User-Agent: Mutt/1.5.6i Status: RO Content-Length: 445 On Mon, Oct 12, 2009 at 03:19:49PM -0700, Jerry Gilliam wrote: > I'm sponsoring the following case on behalf of Michael Corcoran. > The proposal I believe qualifies for self-review approval but > I can upgrade this upgrade should anyone think otherwise. Not really relevant to this case, but surely it's time to stop all the PSM versioning stuff. It has no meaning or purpose any more, and would save a lot on PSARC fast-tracks. regards john