From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06830376E2; Wed, 21 Feb 2024 10:34:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708511663; cv=none; b=cF98F4R0Gtt5u0RgfyOVEm7dhbmD1lOsOImebxpp1PwuEvLDAt/Qd5Dq6wTQL3slsJsyv2a68KLq1ARmLLJQOYQ42yen762edg02GLsIHFDn0lvhs05s62RxVcENJ8pFrPARhIT9I7w9vzhKhBtAYPbxcVOCQu+m0RAWQIB86E0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708511663; c=relaxed/simple; bh=pSgaoW32A2ZW+Zstf/HfSXVhl29QTjYCBzXFumXW8S4=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=cfhO+ERGy6LpJEG7FbxckEvFAZbgKq0wsDtDgNLozZdlqEMzk6DTjNfCb901pTTZloxayG/kAKV9HA1vE4f3D6gC7DiMKzIR/DvvTsu9oMWRMy6E4bha6mUZMmf/yg8MTXfxsrIWgeW0OYHINWb+fV9E6oRbYeehL2Poo5XabvM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bHMc7J8G; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bHMc7J8G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D8DBC433F1; Wed, 21 Feb 2024 10:34:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708511662; bh=pSgaoW32A2ZW+Zstf/HfSXVhl29QTjYCBzXFumXW8S4=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=bHMc7J8GzF/8YWnYAjGm1r2KrgrB5PaoUux3ZHfJaqkFQkbdQLZHwAEXKTXwO/8BU gEehdOQQrJ0o/7iOPEPg123PGzKuV7X28gvjRWstC+MH6YHKJUymd5AabtNMpDMu1c oEDG+5Dj8l52HW7+guH2H/lavdnWQnJ5radXOSlJBKk3Rl6657MOFH85Bu6q7uZcfC 7vAKs13JZtiu6TUcrtuWllTFjP+LfXib6lfVhjl1waVxJ1X2ca2jm5CP0axTjTYKr8 tRcptAzdF15dA0ZZErxxCEBKzGtLux4ypI/ySIx+BOgTh5X7xFCwh1PtlfyQ7ikCMD CkTS9NVBEassQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rcjvg-005Cq1-Kx; Wed, 21 Feb 2024 10:34:20 +0000 Date: Wed, 21 Feb 2024 10:34:20 +0000 Message-ID: <86ttm22jir.wl-maz@kernel.org> From: Marc Zyngier To: Paolo Bonzini Cc: James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu , kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [GIT PULL] KVM/arm64 fixes for 6.8, take #3 In-Reply-To: References: <20240221101711.2105066-1-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: pbonzini@redhat.com, james.morse@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.com, kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Wed, 21 Feb 2024 10:22:04 +0000, Paolo Bonzini wrote: >=20 > On Wed, Feb 21, 2024 at 11:17=E2=80=AFAM Marc Zyngier wr= ote: > > > > Hey Paolo, > > > > Another week, another couple of fixes. This time, two fixes for the > > ITS emulation that could result in non-existent LPIs being used, with > > unpredictable consequences. Thanks to Oliver for spotting those as he > > was reworking the ITS translation cache. >=20 > The consequences would really be NULL pointer dereferences, wouldn't they? That's the effect. The consequences depend on how the fault is handled ('benign' oops, panic, or reboot...). Thanks, M. --=20 Without deviation from the norm, progress is not possible.