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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AE4AAC5AC67 for ; Tue, 11 Aug 2026 13:50:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=SJxmRQM7F3EcGKJ2usgmmLbzV+Jao4QSmpRGL3/m8nM=; b=FllHKWVswCQAn+lDoD+B27wxiV iYaC88GhUAfBdkoBiA25ULWoHmnL3+utNkDgJ+kLpE/7ZpRpO/QvekxqzRvWH9MHe3+f+3lrH9e5n zKwTZaAun3J0w2UPLTzVl6mYHQrVPOFLxUtWsY0kZsMf/DM0SDUKBwFlGhp8wMlvgfBo9zqgWEXs8 6LqIfTL/NWgCV0+FxKzHYvieZONCK7vtpWjWALBt+C64qYasg+v9QYu3j0zCKCJxqo6a6lEH5GaRg gDP8h+jvNrQ4oSvwnaoEXAjem0CW+MaNNsOWgbwEce1WQgtShHTjo5bA1pTe1F/61UPBenAmPtbNU vk4yNp5A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wtmsJ-0000000E8Fe-1vFt; Tue, 11 Aug 2026 13:50:39 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wtmsI-0000000E8FS-0hvq for linux-arm-kernel@lists.infradead.org; Tue, 11 Aug 2026 13:50:38 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 3207B600AD; Tue, 11 Aug 2026 13:50:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D724C1F000E9; Tue, 11 Aug 2026 13:50:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786456236; bh=SJxmRQM7F3EcGKJ2usgmmLbzV+Jao4QSmpRGL3/m8nM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=dPzERcAojVuBzzizgM/Q9daClJkJFXcnYt58TlPSQRhoBEAUAoUkWLtUjeIjfEXjR Z/pO4eWJ8tcWaNsrDByaW+EENLpX4Roscs9HhbhH1C4PrRDlaAPTFYF/EOgw1yK0dk qGuJACz4GvyOW22WmuEUCJIfLdnpCJj5LhPyJPASM+Or210vqAjSQLLxauj7V3TIKk cPQJm7Oe1jsKlNuvDnbXfWpFt0fv7dt6R09ZcA0anc3f4JHZIN3AY6flzj5pfYifli jXx3pNf82AqjCmNic36H5gvBJdAVhJL81aoYIQAXXXE41oYsXQ3nHYxbM8NaXRjgNZ 6gNk0/+2FG8aQ== From: Will Deacon To: linux-arm-kernel@lists.infradead.org, Vladimir Murzin Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , mark.rutland@arm.com, maz@kernel.org, ruanjinjie@huawei.com, liaochang1@huawei.com, leitao@debian.org Subject: Re: [RFC PATCH v2 00/45] arm64: Add support for FEAT_NMI Date: Tue, 11 Aug 2026 14:50:28 +0100 Message-ID: <178644801936.3298642.13329648987825635057.b4-ty@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260727163453.7969-1-vladimir.murzin@arm.com> References: <20260727163453.7969-1-vladimir.murzin@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 27 Jul 2026 17:34:08 +0100, Vladimir Murzin wrote: > FEAT_NMI provides an architected mechanism for supporting non-maskable > interrupts (NMIs) and less-masked interrupts (LMIs). > > Since we already support pseudo-NMIs via priority masking, introducing > another flavour of NMI on top of the existing infrastructure could > easily become messy, making the code harder to follow and reason > about. > > [...] Applied patches 8 and 9 to arm64 (for-next/nmi), thanks! [08/45] irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs https://git.kernel.org/arm64/c/067f029c6463 [09/45] arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit https://git.kernel.org/arm64/c/39aebe0e8946 This should fix the pNMI splat reported by Breno at: https://lore.kernel.org/all/20260807-arm64_fix-v1-1-d069ccf9d71b@debian.org/ Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev