From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56536) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WYEzn-00008w-JB for qemu-devel@nongnu.org; Thu, 10 Apr 2014 09:26:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WYEzd-0004I4-4y for qemu-devel@nongnu.org; Thu, 10 Apr 2014 09:26:23 -0400 Message-ID: <53469BF3.7000406@suse.de> Date: Thu, 10 Apr 2014 15:26:11 +0200 From: Alexander Graf MIME-Version: 1.0 References: <1394770689-29039-1-git-send-email-aik@ozlabs.ru> <1394770689-29039-7-git-send-email-aik@ozlabs.ru> <534693E4.1050204@suse.de> <53469B86.7020400@ozlabs.ru> In-Reply-To: <53469B86.7020400@ozlabs.ru> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 6/8] spapr: move interrupt allocator to xics List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexey Kardashevskiy , qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, =?UTF-8?B?QW5kcmVhcyBGw6RyYmVy?= On 10.04.14 15:24, Alexey Kardashevskiy wrote: > On 04/10/2014 10:51 PM, Alexander Graf wrote: >> On 14.03.14 05:18, Alexey Kardashevskiy wrote: >>> The current allocator returns IRQ numbers from a pool and does not >>> support IRQs reuse in any form as it did not keep track of what it >>> previously returned, it only had the last returned IRQ. >>> However migration may change interrupts for devices depending on >>> their order in the command line. >> Wtf? Nonono, this sounds very bogus and wrong. Migration shouldn't change >> anything. > > I put wrong commit message. By change I meant that the default state before > the destination guest started accepting migration is different from what > the destination guest became after migration finished. And migration cannot > avoid changing this default state. Ok, why is the IRQ configuration different? Alex