From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59511) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQb2H-00051i-Kd for qemu-devel@nongnu.org; Thu, 29 Jun 2017 11:07:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dQb2G-0000Li-MU for qemu-devel@nongnu.org; Thu, 29 Jun 2017 11:07:13 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36242) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dQb2G-0000LS-Fh for qemu-devel@nongnu.org; Thu, 29 Jun 2017 11:07:12 -0400 References: <20170629010300.2848-1-f4bug@amsat.org> <0e0d7ae6-5c1e-5c54-9d09-ef03e600b87e@redhat.com> From: Paolo Bonzini Message-ID: <98d49899-a2d8-8ecc-70ac-becc5252ae32@redhat.com> Date: Thu, 29 Jun 2017 17:06:58 +0200 MIME-Version: 1.0 In-Reply-To: <0e0d7ae6-5c1e-5c54-9d09-ef03e600b87e@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC PATCH 0/8] removal of tci (tcg interpreter) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Thomas Huth , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , qemu-devel@nongnu.org, Richard Henderson , =?UTF-8?Q?Alex_Benn=c3=a9e?= , "Emilio G . Cota" , Stefan Weil , Peter Maydell On 29/06/2017 10:46, Thomas Huth wrote: >> Patches 7,8 are the removal, marked RFC... let's debate! > ... but NACK for a direct removal. Common sense is to make obsolete > features as deprecated first and then wait for 2 public releases before > the final removal, so that users still have a chance to speak up in case > they still need the feature and are willing to maintain it. I think this is a slightly different case than what is in http://wiki.qemu.org/Features/LegacyRemoval. TCI is enabled only with a specific configure argument if your machine is not supported by TCG. This would break _build_ configurations, not user configurations. It's a remote possibility that users are building their own QEMU, with TCI enabled, to work around a TCG bug. So we can be more speedy in removing the code. Paolo