From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zytor.com (terminus.zytor.com [198.137.202.136]) (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 5FE2D18042 for ; Wed, 3 Jul 2024 03:43:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.136 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719978184; cv=none; b=Aj1CXN21yQgCK9wP1dtU6qXLb1ef4ddncFM3E8mXvclLXe3Kw48gKowaLm+PYUkAV/ITtbg8KaU5cyjbhFBA4jgdStLbHVR6mjjVHqYJVJB104jvyiYepQV3lxvyiKo0JdaEPnwSAy2MeNIIxnuCpOPmrWmS2lNnTDzmlw6g1pU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719978184; c=relaxed/simple; bh=a6TKJdWYiAp3I0uWNzwAOR9657oxxZMqD+Cd6q6GXPs=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=c1gNr901AuluoFUBGRlo+Jczxh+nCHgcgejqQ9r5GdOGVomhTvWLOlbRID9XjtFjfE10DFa1V5ZyfEreqhzanwOwpX4KrHWQ19WxFX4LOLtxq6uuqtHkYgvcVjBCmUo6tw+Ixt1py9Qicf0NzQeYlczMmaF4LlcDB367/olULwQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zytor.com; spf=pass smtp.mailfrom=zytor.com; dkim=pass (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b=h7GXSRM7; arc=none smtp.client-ip=198.137.202.136 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zytor.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zytor.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b="h7GXSRM7" Received: from [192.168.7.205] ([71.202.166.45]) (authenticated bits=0) by mail.zytor.com (8.17.2/8.17.1) with ESMTPSA id 4633gLTk146462 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NO); Tue, 2 Jul 2024 20:42:22 -0700 DKIM-Filter: OpenDKIM Filter v2.11.0 mail.zytor.com 4633gLTk146462 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zytor.com; s=2024061501; t=1719978143; bh=Ex/fYNECMashiRiup/1meZ1pO0xIwMpSCpz7AOoym0I=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=h7GXSRM7ujiYemNFWgE6zgJRZwNnQg1woodnmE/0KZ9b1gWOJWX+rjPiR45mz0rkC 4fR004Q/bHruhXFwabXZfC0wfWamqlaYZE8LrY7SFvhFcIDoCUVT4/0yKufcXdWqmR zujocGagCy3vxTxkvRfIl0L7w5snHxDgkRujP3x3sigG1i9bNpWIXSh7BEceNqcENk CGS/Pu9IBDmaHqQatdA2/p5PbdXDI86WKsy8jp3kD9CpSAmTMiiZqlWAcalJ3kIibn DyI/gtiCGF1zCbQlCZG1jTqq9s+SqmILQLpXALHtP4aWDxQ1usYdLTVKBIoe5ZdN5n 0YP9R4NkUSMkQ== Message-ID: <52d155d1-61bb-4829-b2ec-b60cdd1bf2c5@zytor.com> Date: Tue, 2 Jul 2024 20:42:20 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] x86/fred: Always install system interrupt handler into IDT To: Hou Wenlong Cc: linux-kernel@vger.kernel.org, Lai Jiangshan , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Xin Li , Jacob Pan , Rick Edgecombe , Paolo Bonzini References: <2f632ef59c8c9cc27c3702bc2d286496ed298d65.1718972598.git.houwenlong.hwl@antgroup.com> <20240628093656.GA103025@k08j02272.eu95sqa> <20240703024438.GA76553@k08j02272.eu95sqa> Content-Language: en-US From: Xin Li Autocrypt: addr=xin@zytor.com; keydata= xsDNBGUPz1cBDACS/9yOJGojBFPxFt0OfTWuMl0uSgpwk37uRrFPTTLw4BaxhlFL0bjs6q+0 2OfG34R+a0ZCuj5c9vggUMoOLdDyA7yPVAJU0OX6lqpg6z/kyQg3t4jvajG6aCgwSDx5Kzg5 Rj3AXl8k2wb0jdqRB4RvaOPFiHNGgXCs5Pkux/qr0laeFIpzMKMootGa4kfURgPhRzUaM1vy bsMsL8vpJtGUmitrSqe5dVNBH00whLtPFM7IbzKURPUOkRRiusFAsw0a1ztCgoFczq6VfAVu raTye0L/VXwZd+aGi401V2tLsAHxxckRi9p3mc0jExPc60joK+aZPy6amwSCy5kAJ/AboYtY VmKIGKx1yx8POy6m+1lZ8C0q9b8eJ8kWPAR78PgT37FQWKYS1uAroG2wLdK7FiIEpPhCD+zH wlslo2ETbdKjrLIPNehQCOWrT32k8vFNEMLP5G/mmjfNj5sEf3IOKgMTMVl9AFjsINLHcxEQ 6T8nGbX/n3msP6A36FDfdSEAEQEAAc0WWGluIExpIDx4aW5Aenl0b3IuY29tPsLBDQQTAQgA NxYhBIUq/WFSDTiOvUIqv2u9DlcdrjdRBQJlD89XBQkFo5qAAhsDBAsJCAcFFQgJCgsFFgID AQAACgkQa70OVx2uN1HUpgv/cM2fsFCQodLArMTX5nt9yqAWgA5t1srri6EgS8W3F+3Kitge tYTBKu6j5BXuXaX3vyfCm+zajDJN77JHuYnpcKKr13VcZi1Swv6Jx1u0II8DOmoDYLb1Q2ZW v83W55fOWJ2g72x/UjVJBQ0sVjAngazU3ckc0TeNQlkcpSVGa/qBIHLfZraWtdrNAQT4A1fa sWGuJrChBFhtKbYXbUCu9AoYmmbQnsx2EWoJy3h7OjtfFapJbPZql+no5AJ3Mk9eE5oWyLH+ QWqtOeJM7kKvn/dBudokFSNhDUw06e7EoVPSJyUIMbYtUO7g2+Atu44G/EPP0yV0J4lRO6EA wYRXff7+I1jIWEHpj5EFVYO6SmBg7zF2illHEW31JAPtdDLDHYcZDfS41caEKOQIPsdzQkaQ oW2hchcjcMPAfyhhRzUpVHLPxLCetP8vrVhTvnaZUo0xaVYb3+wjP+D5j/3+hwblu2agPsaE vgVbZ8Fx3TUxUPCAdr/p73DGg57oHjgezsDNBGUPz1gBDAD4Mg7hMFRQqlzotcNSxatlAQNL MadLfUTFz8wUUa21LPLrHBkUwm8RujehJrzcVbPYwPXIO0uyL/F///CogMNx7Iwo6by43KOy g89wVFhyy237EY76j1lVfLzcMYmjBoTH95fJC/lVb5Whxil6KjSN/R/y3jfG1dPXfwAuZ/4N cMoOslWkfZKJeEut5aZTRepKKF54T5r49H9F7OFLyxrC/uI9UDttWqMxcWyCkHh0v1Di8176 jjYRNTrGEfYfGxSp+3jYL3PoNceIMkqM9haXjjGl0W1B4BidK1LVYBNov0rTEzyr0a1riUrp Qk+6z/LHxCM9lFFXnqH7KWeToTOPQebD2B/Ah5CZlft41i8L6LOF/LCuDBuYlu/fI2nuCc8d m4wwtkou1Y/kIwbEsE/6RQwRXUZhzO6llfoN96Fczr/RwvPIK5SVMixqWq4QGFAyK0m/1ap4 bhIRrdCLVQcgU4glo17vqfEaRcTW5SgX+pGs4KIPPBE5J/ABD6pBnUUAEQEAAcLA/AQYAQgA JhYhBIUq/WFSDTiOvUIqv2u9DlcdrjdRBQJlD89ZBQkFo5qAAhsMAAoJEGu9DlcdrjdR4C0L /RcjolEjoZW8VsyxWtXazQPnaRvzZ4vhmGOsCPr2BPtMlSwDzTlri8BBG1/3t/DNK4JLuwEj OAIE3fkkm+UG4Kjud6aNeraDI52DRVCSx6xff3bjmJsJJMb12mWglN6LjdF6K+PE+OTJUh2F dOhslN5C2kgl0dvUuevwMgQF3IljLmi/6APKYJHjkJpu1E6luZec/lRbetHuNFtbh3xgFIJx 2RpgVDP4xB3f8r0I+y6ua+p7fgOjDLyoFjubRGed0Be45JJQEn7A3CSb6Xu7NYobnxfkwAGZ Q81a2XtvNS7Aj6NWVoOQB5KbM4yosO5+Me1V1SkX2jlnn26JPEvbV3KRFcwV5RnDxm4OQTSk PYbAkjBbm+tuJ/Sm+5Yp5T/BnKz21FoCS8uvTiziHj2H7Cuekn6F8EYhegONm+RVg3vikOpn gao85i4HwQTK9/D1wgJIQkdwWXVMZ6q/OALaBp82vQ2U9sjTyFXgDjglgh00VRAHP7u1Rcu4 l75w1xInsg== In-Reply-To: <20240703024438.GA76553@k08j02272.eu95sqa> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/2/2024 7:44 PM, Hou Wenlong wrote: > On Wed, Jul 03, 2024 at 01:16:29AM +0800, Xin Li wrote: >> On 6/28/2024 8:18 AM, Xin Li wrote: >>> On 6/28/2024 2:36 AM, Hou Wenlong wrote: >>>> Hi Xin, >>>> >>>> It seems preferable to parse the FRED command line and disable FRED >>>> early instead of using this method. As mentioned in my cover letter, I >>>> initially attempted to fix the problem this way (by parsing the command >>>> line in cpu_parse_early_param()). Should I send a new patch for it, or >>>> will you be covering it in your work to enable FRED early? >>>> >>> >>> I have done it in my patches that enables FRED early, but if you want, >>> you can post it, because you're a key contributor in this work. >>> >> >> Please let me know if you want to do it. >> > Hi Xin, > > Sorry for forgetting to reply. I think it would be better for the fix to > be covered in your work. NP, thanks!