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 B3F8D201268; Tue, 12 Nov 2024 15:40:27 +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=1731426028; cv=none; b=lnGmJpk151QRFEctBujSG36IO3aGWNwJf2GYXMm1dBN5I8hkieqhv8ZAGXbghZVETq8RKsS6lAtJDI7NQ585oKacPBcCsIi48txI9QzBDgDwG6OjsJu7Eoqx+NEcxbEfy7IPetV5GUx9uG2LVjGruYWZlMIM1vBZpQxKdF5DHAw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731426028; c=relaxed/simple; bh=ZNh/ROovS0LCjiQGg6i/XgRVyI61N/6UaT5SEySFiaA=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=Hyq/eSS5DdqlUG1H23vJ3Q09+JXIzuWuVaIcayk/O7Bap18P5HV8lMID65VIJqNKzhk/SMb3QScWTP12khhzpGZ2uf3QW4rS7Dws1NbACHA86mYv+QgzEaLFKyv/vy6ExpEWOgpsXWu5rYVWljkc8btxuxZo74eytS0n1mYfGVY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JhGnhSuc; 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="JhGnhSuc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15877C4CECD; Tue, 12 Nov 2024 15:40:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731426027; bh=ZNh/ROovS0LCjiQGg6i/XgRVyI61N/6UaT5SEySFiaA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=JhGnhSucDGJERcF9iq1XIepc+Df+9yL0VSxUws0X2Yi2DqmX4BpVtVSACWPTNkMuq aVyvMvZf9BWwNhBGS4n4gYndMCggrLJ1nNR2L4C/H+D3for7ZsEe3WpXEIhiF9kYzl aIuHwH2YV9f8HJPHtNQsQmpXUjFajdhmKMsz18cL6IQEAoIdV5P3Lxxv939UbG2s31 5crKVVEnShi+c8D2iACHmI1OFoL2AiRbvg6caGlAdMIQaMeZddn9j8dXLa4AFn84jv 4MlnSZFUl76Xl0zAp5IjZ3JYBx+GsfttzWayrzfnbrBC14wia10eLs/ELn3sWTBWS3 wYiU5D8LOHH4g== Received: from [104.132.45.109] (helo=wait-a-minute.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 1tAt0C-00CEpN-M6; Tue, 12 Nov 2024 15:40:24 +0000 Date: Tue, 12 Nov 2024 15:40:24 +0000 Message-ID: <8734jwtq8n.wl-maz@kernel.org> From: Marc Zyngier To: James Clark Cc: tabba@google.com, kvmarm@lists.linux.dev, oliver.upton@linux.dev, Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , =?UTF-8?B?UGll?= =?UTF-8?B?cnJlLUNsw6ltZW50?= Tosi , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] KVM: arm64: Pass on SVE mapping failures In-Reply-To: <20241112105604.795809-1-james.clark@linaro.org> References: <20241112105604.795809-1-james.clark@linaro.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/29.4 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@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=US-ASCII X-SA-Exim-Connect-IP: 104.132.45.109 X-SA-Exim-Rcpt-To: james.clark@linaro.org, tabba@google.com, kvmarm@lists.linux.dev, oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, catalin.marinas@arm.com, will@kernel.org, ptosi@google.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Tue, 12 Nov 2024 10:56:03 +0000, James Clark wrote: > > This function can fail but its return value isn't passed onto the > caller. Presumably this could result in a broken state. > > Fixes: 66d5b53e20a6 ("KVM: arm64: Allocate memory mapped at hyp for host sve state in pKVM") > Signed-off-by: James Clark Acked-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible.