From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E24FC433F5 for ; Fri, 15 Oct 2021 09:17:22 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8359D60F25 for ; Fri, 15 Oct 2021 09:17:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8359D60F25 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=vivier.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:40040 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mbJL6-0003k4-Mk for qemu-devel@archiver.kernel.org; Fri, 15 Oct 2021 05:17:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56578) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mbIlf-0002DW-7A for qemu-devel@nongnu.org; Fri, 15 Oct 2021 04:40:44 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:55353) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mbIld-0007rn-1C for qemu-devel@nongnu.org; Fri, 15 Oct 2021 04:40:42 -0400 Received: from [192.168.100.1] ([82.142.24.54]) by mrelayeu.kundenserver.de (mreue009 [213.165.67.103]) with ESMTPSA (Nemesis) id 1MBltM-1mRM5K3LnI-00CCft; Fri, 15 Oct 2021 10:40:38 +0200 Subject: Re: [PATCH 8/8] q800: add NMI handler To: Mark Cave-Ayland , qemu-devel@nongnu.org References: <20211013212132.31519-1-mark.cave-ayland@ilande.co.uk> <20211013212132.31519-9-mark.cave-ayland@ilande.co.uk> From: Laurent Vivier Message-ID: <40098631-e3de-b334-43a7-e0e7ff2751c4@vivier.eu> Date: Fri, 15 Oct 2021 10:40:37 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20211013212132.31519-9-mark.cave-ayland@ilande.co.uk> Content-Type: text/plain; charset=utf-8 Content-Language: fr Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:cVrtJWaRXEZNU38umDEs2O5yA5ZHYX9HGao1Yz9vegwup9CGMeG DVlxd2xmzPpJG4cCtHEMAF1aUJGuw4ngi507reb6OyYLnYCSkgRicNAQvqM8+QE7tEdVf83 vO46v9ZSmyiUcCUNGIZa5+MOqMTpw1mNGxhMWe8Hgq4WtiJnfaCtHB4Enq97GqSJD8F5HCS yUE6iK+n4EEXnfmsFZdAw== X-UI-Out-Filterresults: notjunk:1;V03:K0:fS0SsUDOvKI=:eSAAGX64Vwtkd8NR8bdDY9 9qhxkg5LK1MEaFnnpnWbU9gbuamASGA19Gzoc+Y6/TWw5YjvWFC2g9+iw+U3RYlJWFx8Xd0Dg hqnq93f881kwJuRXIBmdQYRVriklOnHK6x6KpHNVHnKnIQCqOyqpKL7DMEosKNYfHfI4soVN6 MdsqNxnaB9r04+OFeMoEwoN6SeUDkWBiWK0xAqe1P4kUzjbn9Dx6/2offhQsBn4R7n/1HPD2p AI3YkhSxtRKBcL5sWEY9PEkdBtaIHSyLJ1FFVfdGyA4MVoQszzWpjW/ajmQFjptthp52zT5N3 Y4VkD5YSv0+0YT0h9DGV6/6+YCs7BjW5CwjEeBuJIdZju85rRg9t9lXWtNJOWX2vLCGFqKotJ lW4IKSmpbuz9yEiIzq6ipZaOM6PPQmFV44IAJZXHMkjikLJxISUm2RvskEBWSWV11sg7hbq7L YJdR2NcjwjSYKoq6bIv8rz65uUVc09v+lzkh5WvUA1cf/Tjxxzy7fG6iQ77OMvGFqyV/H9EvB SjopOk4Dn1AyKIYp2IMRa/llB1hnUUJjQ62Tj2YwKEXrJYblVBT5sG7dfZ8yIi/T2s50g6+OY KZlHniRf2FYGD1MU+HwGHEyBzOqHzOPpnU6L1nqPX7cYhNLk8A8FePk3s/GtOnzjB/uKojWxi b6Ds35axW+Bw4ZAPfozM16svF/0X1dh1xA87Q1Ry/pgQH5Bi87sfxbkPJvADKf7QeUkelGKHc qzJx7wI2llzYdqK5GuKIVAYFf09UsCdppjgNmQ== Received-SPF: none client-ip=212.227.126.130; envelope-from=laurent@vivier.eu; helo=mout.kundenserver.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Le 13/10/2021 à 23:21, Mark Cave-Ayland a écrit : > This allows the programmer's switch to be triggered via the monitor for debugging > purposes. Since the CPU level 7 interrupt is level-triggered, use a timer to hold > the NMI active for 100ms before releasing it again. > I'm wondering if Qemu provides another way to have a level-triggered interrupt in this case. I' tried to see if keeping the button pressed on a mac kept the IRQ up (as QMP NMI does), but a real mac is too slow and has to many things to display it was not really conclusive... Thanks, Laurent