From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from SMTP02.CITRIX.COM (smtp02.citrix.com [66.165.176.63]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 0ED5282118 for ; Mon, 12 Dec 2016 04:40:43 -0800 (PST) X-IronPort-AV: E=Sophos;i="5.33,336,1477958400"; d="scan'208";a="403089381" Date: Mon, 12 Dec 2016 12:40:42 +0000 From: Anthony PERARD To: Andrew Cooper CC: "Kinney, Michael D" , "edk2-devel@lists.01.org" , "xen-devel@lists.xenproject.org" Message-ID: <20161212124042.GE1848@perard.uk.xensource.com> References: <20161208153340.2285-1-anthony.perard@citrix.com> <20161208153340.2285-11-anthony.perard@citrix.com> <58dbbeb0-f600-ef3f-7f8c-5c110b0aa809@citrix.com> MIME-Version: 1.0 In-Reply-To: <58dbbeb0-f600-ef3f-7f8c-5c110b0aa809@citrix.com> User-Agent: Mutt/1.7.1 (2016-10-04) Subject: Re: [Xen-devel] [PATCH RFC 10/14] UefiCpuPkg/BaseXApicX2ApicLib: Fix initialisation on my system and ... X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Dec 2016 12:40:44 -0000 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline On Fri, Dec 09, 2016 at 10:43:30AM +0000, Andrew Cooper wrote: > On 09/12/16 06:48, Kinney, Michael D wrote: > > Hi Anthony, > > > > Can you provide more details on why you want to expose internal APIs > > in the library class? > > > > What is the specific issue? Is the Local APIC in your environment > > not behaving the same as real HW? > > Xen's LAPIC emulation should match real hardware (because we might even > substitute it for real hardware APIC virtualisation support). > > If Xen's LAPIC doesn't behave like real hardware, we should fix that, > but first we should understand what the correct behaviour should be. I'll try to find out what the real hardware is doing. At least, I think there where nothing in the Intel manual about the initial counter been reset. -- Anthony PERARD