[{"id":1771292,"web_url":"http://patchwork.ozlabs.org/comment/1771292/","msgid":"<58618c0e-9336-2cf8-9db2-d11181c29ea7@linaro.org>","list_archive_url":null,"date":"2017-09-19T18:50:26","subject":"Re: [Qemu-devel] [PATCH 12/19] nvic: In escalation to HardFault,\n\tsupport HF not being priority -1","submitter":{"id":72104,"url":"http://patchwork.ozlabs.org/api/people/72104/","name":"Richard Henderson","email":"richard.henderson@linaro.org"},"content":"On 09/12/2017 01:13 PM, Peter Maydell wrote:\n> When escalating to HardFault, we must go into Lockup if we\n> can't take the synchronous HardFault because the current\n> execution priority is already at or below the priority of\n> HardFault. In v7M HF is always priority -1 so a simple < 0\n> comparison sufficed; in v8M the priority of HardFault can\n> vary depending on whether it is a Secure or NonSecure\n> HardFault, so we must check against the priority of the\n> HardFault exception vector we're about to use.\n> \n> Signed-off-by: Peter Maydell \n> ---\n> hw/intc/armv7m_nvic.c | 23 ++++++++++++-----------\n> 1 file changed, 12 insertions(+), 11 deletions(-)\n\nReviewed-by: Richard Henderson \n\nr~","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=linaro.org header.i=@linaro.org\n\theader.b=\"Y4bA4pvC\"; dkim-atps=neutral"],"Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xxX5R1V16z9s7g\n\tfor ;\n\tWed, 20 Sep 2017 04:51:07 +1000 (AEST)","from localhost ([::1]:44863 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t)\n\tid 1duNbs-0000Qm-Ia\n\tfor incoming@patchwork.ozlabs.org; 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