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 A463AC5B572 for ; Thu, 13 Aug 2026 06:50:15 +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=LYDW+ngw5qRURlwX89PvvWJBIbVdW4n1IuPbDPKQw08=; b=oi+yW6DKm3B0FM/xLmgslyXhB8 06RRmmHiRfKccLWe+Yma9TSNQ/WGKUePMTMGWfCPV4LRPUdO+Qb19aDmonMQKM1dP9A4ev0bO/aGr LfNCJ00dDrH36poX5bBQF2tBwEx1VjMYZUMDQzQPdPI6nUxeiQqilmvLrZ5eEbdiwHYy/RVYW29Y2 If00OfELbUi+d1jaMGDI5Oc5bvA90jxULSmticHoFw/GWM4cSW9YjEbaz7Dro2qwIgy/TlGeOS6tV jU/GzUyx5T7df6R3ZVOhg8EObJ6xUwQQ8pfv7rNfNf7i61aDq7hXSY41e+YNjgcQEsSCWkzSj3oly yRot29ZA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wuPGO-0000000HWMf-3Bp8; Thu, 13 Aug 2026 06:50:04 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wuPGA-0000000HWG1-2dIo for linux-arm-kernel@lists.infradead.org; Thu, 13 Aug 2026 06:49:50 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id DE983600DA; Thu, 13 Aug 2026 06:49:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66AD71F00ACF; Thu, 13 Aug 2026 06:49:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786603789; bh=LYDW+ngw5qRURlwX89PvvWJBIbVdW4n1IuPbDPKQw08=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=X6LWYWU+mWJ/If0/MpTS3wczw7IetQ4Xv2cKzyEVUbexBH+NPMYJW0O1yBiBkP5+H nPIIn1j9s0vvCg3JePdyx8+hER1RYRLUIL6JemlzVZyxjsgWYQU8yrZfBNizmNRQ/w IaaJsGk4vejpA7Q8uXsVKPlVfcAAmbMBq3bwi8cx9f3qPVucqtfJ/dZE2w5dNTfHFC NPdxNan+TgHT/LW0aelb6bHzquuR+XJJLN/59tmNflDvqIFIIUdWC+3wl+OOCPOpKm JzDl03iGXahQNLHNECBPbW4pqq5aNF3k6SlN1kHBGOqsNMVVikMLBq02HgJkNzjuDq O6Gag3y1wmUlg== From: Oliver Upton To: Marc Zyngier , Karl Mehltretter Cc: Oliver Upton , Fuad Tabba , Joey Gouly , Steffen Eiden , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v2] KVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID Date: Wed, 12 Aug 2026 23:49:43 -0700 Message-ID: <178660378177.666424.79190290228047804.b4-ty@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260726174803.5880-1-kmehltretter@gmail.com> References: <20260726174803.5880-1-kmehltretter@gmail.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 Sun, 26 Jul 2026 19:48:03 +0200, Karl Mehltretter wrote: > vgic_v2_deactivate() passes the INTID a guest wrote to GICV_DIR straight > to vgic_get_vcpu_irq(), and treats a failed lookup as a "can't happen" > condition with WARN_ON_ONCE(). > > The guest can make it happen at will, though: for any INTID outside of > the implemented SGI, PPI and SPI ranges the lookup returns NULL, since > GICv2 has no LPIs. A guest running with EOImode==1 writing such an INTID > to GICV_DIR triggers the WARN, and panics hosts running with > panic_on_warn. > > [...] Applied to next, thanks! [1/1] KVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID https://git.kernel.org/kvmarm/kvmarm/c/c6d9c8ac6521 -- Best, Oliver