From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (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 112414A5EB9; Mon, 21 Sep 2026 14:44:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790001880; cv=none; b=bzoK26nt9YrnDJaJlHzkIoBTzURxTdVSxs/FwsHr1oc5feezNdx3I+xIiLu10fgMh2ddrX+Wdhxlsz+81b0+3OsRnJrfe7WOyVQGQbLXXbXQ7hgxc6RKX1o3Tj6ZLtxtyNNgv+E8AZwnZxMcm80HIVMI4BufetD8YNO0g5I0aUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790001880; c=relaxed/simple; bh=qm23bpznxQLyH0ApgbQLKOknX+sH9kLWTPAQwoHf1Sg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=VVccXwdYpmSI/g9ndYgwt4kXcLOvrg+hGLD20ggeshtYD/GXIWJenldO9uWJsafSFDfoS7oUEPfHRv/WKv79DY+7mOMcArvEtBrjZ41+tTZf/etjacgExRBXTHSFKSb5vJwp3jsQ9jdd3jXaBr2gx7RcgBkyNdtwbgljZQRb6Wo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=WrXpfX+p; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="WrXpfX+p" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1790001878; x=1821537878; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=qm23bpznxQLyH0ApgbQLKOknX+sH9kLWTPAQwoHf1Sg=; b=WrXpfX+pq6vYYhsEm9KyayYGtQiXwvAMQKC3uhuWKvuLx8dY42cC8Fvg VRfDkXdUh2YprK9zhz6n2rH79kJaINZx/ZzK2GuvucllkHyh/ZKOngJOr kkitLjY/XeO3pU9iSztff6Uya1NJmqQ4/7fhJOX+25vrVPIrh4SiGPZ77 Q0Y9wrTpakfrq5JIY1O0AoDWxJ8WYeyn+bNoz6kZHS4eXdtCKHKWbRktq E0m5xx/nbnr5xRIbC1NTr1C4bBJUqJ3F7qydnumuPAIqnlzR/1o4geoSJ 0GjqD77upk6ba0Vi3ROnYYDw/D2kjRN38foYHmy6O+gCPsYN49Ic5RAKL w==; X-CSE-ConnectionGUID: sGku6yB5QBOvKBQ6+5rD2A== X-CSE-MsgGUID: v0bsjKroRT6BGM7Eu3wxDg== X-IronPort-AV: E=McAfee;i="6800,10657,11912"; a="93015651" X-IronPort-AV: E=Sophos;i="6.27,114,1787036400"; d="scan'208";a="93015651" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Sep 2026 07:44:37 -0700 X-CSE-ConnectionGUID: CkAo1t1aSB+6+zvPprEOmg== X-CSE-MsgGUID: ShhbAn0zSkaG5lxzbTluEw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,114,1787036400"; d="scan'208";a="280728553" Received: from xiaoyaol-hp-g830.ccr.corp.intel.com (HELO [10.124.240.119]) ([10.124.240.119]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Sep 2026 07:44:35 -0700 Message-ID: <6d9113d7-cfae-480b-908a-5cb52020a6c8@intel.com> Date: Mon, 21 Sep 2026 22:44:29 +0800 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 v4 0/9] KVM: TDX: Enable VM-DoS Prevention Features for TDX To: Sean Christopherson , Paolo Bonzini Cc: Kiryl Shutsemau , Rick Edgecombe , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev, nik.borisov@suse.com References: <20260819094903.3060020-1-xiaoyao.li@intel.com> Content-Language: en-US From: Xiaoyao Li In-Reply-To: <20260819094903.3060020-1-xiaoyao.li@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/19/2026 5:48 PM, Xiaoyao Li wrote: > Hi all, > > This is v4 of the series to enable the Notify VM Exit and Bus Lock VM > exit for TDX, which fixes the KVM CAP issue related with them and allow > userspace to actually enable the features. > > Compared to v3, this v4 adds 5 more patches. The first 8 patches target > for stable kernels while only the patch 9 doesn't have to. Patch 1 is a > single patch to enable Notify VM exit for TDX. Except patch 6, patch > 2-7 are mandatory for enabling Bus Lock VM exit for TDX in patch 8. > > Patch 6 itself is a fix for VMX and is OK for cc stable though maybe not > necessary. Patch 6 is added to this series since it can help stop Sashiko > repeating its finding of VMX's pre-existing issue, and it's also necessary > for patch 9 to consilidate the exit handler for VMX and TDX. > > There are other issues of existing code found during previous review, like > the EPT MISCONFIG handling. Given they are not mandatory for enabling the > Notify VM exit and Bus Lock VM exit for TDX, the plan is to address them in > a follow-up series separately. > > Please refer to v1 for a full background. > > v3: https://lore.kernel.org/all/20260812080229.2481439-1-xiaoyao.li@intel.com/ > v2: https://lore.kernel.org/all/20260810112200.2326727-1-xiaoyao.li@intel.com/ > v1: https://lore.kernel.org/all/20260805031257.1844914-1-xiaoyao.li@intel.com/ Hi Sean, What's your plan on this series? Can you queue it if it looks good to you? Or need me to spin a new version to address Binbin and Rick's comments on the commit message? Thanks, -Xiayao