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 468B8C636CC for ; Thu, 16 Feb 2023 17:50:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OVmWddhF3lVmXd4xrf9mWvqPCRfAvQvKOh9INXbMDew=; b=JyfB6bkZqlMGqr ICS9YBZXGkKaHiTy0ugk16QA/okIcKsGZvQETw1hxfhGgUFvIi7JH5bwwu0B3ep3FXwUFPVIF/rK1 mNLqgjNl/S5l9ybjCsPeBTvNdEwO4qiCKuPKADiJ7eLx0M2/XRuZw01n5SZql3dKHcpwsonc8y5Fa yQOQ30Tz4CX00Gh+6YY6Dii0I9G2tJpIjIP/XSo87YXAX+jW7e/+A/hKj0hoLbjcKAixjPjw3Lcjr wTJwi9AvMn86hlTZli2VxbZio/nNUXB0NzuGqAvKSVDw1pMEcSw2oR5SZtTUGarpcQtHeygmZ44EY St/QK86X38EaCICYU3LA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pSiPE-00BOcr-Uk; Thu, 16 Feb 2023 17:50:52 +0000 Received: from mga14.intel.com ([192.55.52.115]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pSiPB-00BObJ-Cv for kexec@lists.infradead.org; Thu, 16 Feb 2023 17:50:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676569849; x=1708105849; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=u0+P41I+U7P6oEkW9H2fAtZW+9aVP335JS7RgNi8h70=; b=b9dvZuCZD9ZPQRHYgdW7NEjKEuQ2Fu+Y5Q3bZhyrX0BtuDWyjpsmzBGA RIMQdLq/mB8JUbuQCU6dAu0aJggqjZCoLXoaiALTL9wIaEcANs7SDuuEP VjpDTWfOXB9AhkwOaWUYeMQeMERuZCZYZmyQfwy19brwqXQ6SFJqOnw4j JZ4Ki3FEIo9ELWfVLuNalau92nk2DquT5j3s0rdCDGS9JtP9Rj8ZA04dK n5Bb0KzGOXJQ6K38Aj1WXUqJ+Ib0avU2E+1S0LqMQhhl5PXe86QCuoPYm vKIkHGScMHar3+ugLvxO4R8oeiaEemGDJHgenAnPxSuKjuV2vnTFz9ipx A==; X-IronPort-AV: E=McAfee;i="6500,9779,10623"; a="331784595" X-IronPort-AV: E=Sophos;i="5.97,302,1669104000"; d="scan'208";a="331784595" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2023 09:50:36 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10623"; a="813047050" X-IronPort-AV: E=Sophos;i="5.97,302,1669104000"; d="scan'208";a="813047050" Received: from bjelliot-mobl1.amr.corp.intel.com (HELO [10.209.100.192]) ([10.209.100.192]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2023 09:50:32 -0800 Message-ID: <65fc95bb-5ad9-b589-d6a4-762289b3f6bc@intel.com> Date: Thu, 16 Feb 2023 09:50:32 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: [PATCH 0/2] Kexec enabling in TDX guest Content-Language: en-US To: "Kirill A. Shutemov" , Borislav Petkov Cc: Kuppuswamy Sathyanarayanan , Thomas Gleixner , Isaku Yamahata , x86@kernel.org, linux-coco@lists.linux.dev, kexec@lists.infradead.org, linux-kernel@vger.kernel.org References: <20230213234836.3683-1-kirill.shutemov@linux.intel.com> From: Dave Hansen In-Reply-To: <20230213234836.3683-1-kirill.shutemov@linux.intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230216_095049_634812_54B086E7 X-CRM114-Status: GOOD ( 10.51 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org On 2/13/23 15:48, Kirill A. Shutemov wrote: > The patch brings basic enabling of kexec in TDX guests. > > By "basic enabling" I mean, kexec in the guests with a single CPU. > TDX guests use ACPI MADT MPWK to bring up secondary CPUs. The mechanism > doesn't allow to put a CPU back offline if it has woken up. > > We are looking into this, but it might take time. This is simple enough. But, nobody will _actually_ use this code as-is, right? What's the point of applying it now? _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec