From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-179.mta0.migadu.com (out-179.mta0.migadu.com [91.218.175.179]) (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 D6C10188CB8 for ; Thu, 26 Sep 2024 07:25:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727335542; cv=none; b=h0g0cft3q3t+2X5FpFyInHDCE0kzXPI9hiwrzsZpSg/BL7PEImq1NJVc3IwO0ZbY8jnRVcifK2XRwp3V0CQ8SBB/X2e6Ldaaf7+PCf23slPbfJdKNIBdPxC4FNlasMsudP2wQZyPhtE4nF+i50Rj5rsLUbfX97Xt+J4gk2brdAI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727335542; c=relaxed/simple; bh=LKz2BWYlC1wcCer0rqsExIwaiuKqjGdcgjs7mcfIdhM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Z4puzyzkcYn+V2i368OqPZ/XmkBX0NL5vAjbF4IZ2kedQpiUmtd65QrhI/vlNIfP8kaRoE7osVn7CdhYQ+IpiTWjogspSfyFdhuzfPrgM86F/He3s0KyIVbAak/hnXFMfiVDrCVGZl1bFcJLg4OoxDRSKy7qyHb49dkzI1X5BSg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=K/mwP0jE; arc=none smtp.client-ip=91.218.175.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="K/mwP0jE" Date: Thu, 26 Sep 2024 09:25:24 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1727335538; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=t68Dgt6yWbqsMukshTyhqyh1jY4+yGJXlpezi6ogjkA=; b=K/mwP0jEZ9zsREYyIkWCF/42FhlrEamH5wF/IFzcqHKsIW6MJBvoRP1V/k3VcPfu1BkbM0 K76Z+dAiueYbH4gfnlB1BthHvEPE9kAY9shbmhT/pgCObYpbXzOA3pYgNidL+fAEuOPv8h Y6x6Zt2+CImb7+xufZgCmHxz9WNfmk8= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Oliver Upton To: Shaoqin Huang Cc: Marc Zyngier , kvmarm@lists.linux.dev, Eric Auger , Sebastian Ott , Cornelia Huck , James Morse , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Paolo Bonzini , Shuah Khan , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [RFC PATCH v1 2/2] KVM: arm64: Allow the RAS feature bit in ID_AA64PFR0_EL1 writable from userspace Message-ID: References: <20240926032244.3666579-1-shahuang@redhat.com> <20240926032244.3666579-3-shahuang@redhat.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240926032244.3666579-3-shahuang@redhat.com> X-Migadu-Flow: FLOW_OUT On Wed, Sep 25, 2024 at 11:22:40PM -0400, Shaoqin Huang wrote: > Currently FEAT_RAS is not writable, this makes migration fail between > systems where this feature differ. Allow the FEAT_RAS writable in > ID_AA64PFR0_EL1 to let the migration possible when the RAS is differ > between two machines. > > Also update the kselftest to test the RAS field. Please do kernel + selftests changes in separate patches. -- Thanks, Oliver