From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (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 976B6173 for ; Thu, 19 Mar 2026 00:03:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773878584; cv=none; b=PaR83n4igyaFSb1a/3W3qfuz7E7NiiakbZDsY48hCR8svvhlEPao72fWjPf+rByseXsV3lrnTd++Gl0BXV+JPyvxtH8iz78t1zNMlRrlNLyl0OcmTTgaUogRiP4xr3sFZnOTGBBBoNp+SnDUele/A3siImrd8PO4eva5xq7/lns= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773878584; c=relaxed/simple; bh=IgDFDmJm/wcLvfmP4+/nEokCRt5shvtnFQgsf4xdiys=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hMXYgach9DCYUU767LAvmO6We4EB/RwXKR3c/FefOWJgLCfiaXfJin9k/EFveZYjzFrp5EuttcHTJCtAdIjFpYzSjyyHEQNCUwgO0k+nZZe+E80SW3Aj+FG6IcH1mXBpTr6jwKobyclbFFK84JK0TYmOndoGV/6EWq25s+HeLG0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=kKIfyJeI; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="kKIfyJeI" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1773878583; x=1805414583; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=IgDFDmJm/wcLvfmP4+/nEokCRt5shvtnFQgsf4xdiys=; b=kKIfyJeIfgGnC3hn3pRGAegpi78nJTynM+xl1lzpjAFIQiGQYyrI8u50 FFF/6bkzpkweBwNENley+u3qF9dSbzpwrPBxvQ70xDpPMLK1kJP5Jxen5 MBP2XH5dydQ8X3lyqJZ9P/cJxr5QA1EYdsEJvhw7/XxOsK95ZZs81ex3b 6JhXRXxFJq+R8+5BNgTHRtzZxtjAwGriMJMQjffUsLDVWtfyC5ePZwklP qldw8Hw05+f+QC1cxBNLRIV+JWGmXIbP+Kz4/vJ0W7YqiJR0R+JW0LxUs kqzTSyLFx8zWItaWyoFyiqSECLJx7q/mojzieI2CC1jLyAYb1clMRQ3pX A==; X-CSE-ConnectionGUID: RYIffnoKRzayKKvMNUVOMg== X-CSE-MsgGUID: XA1opYGiQeSVaeeEr5a6SA== X-IronPort-AV: E=McAfee;i="6800,10657,11733"; a="92330463" X-IronPort-AV: E=Sophos;i="6.23,128,1770624000"; d="scan'208";a="92330463" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Mar 2026 17:03:02 -0700 X-CSE-ConnectionGUID: B6jLjxU2RMShJFk1on/HrQ== X-CSE-MsgGUID: /g8aJ4GaRvK0RQgcwgJtPA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,128,1770624000"; d="scan'208";a="222032812" Received: from guptapa-desk.jf.intel.com (HELO desk) ([10.165.239.46]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Mar 2026 17:03:01 -0700 Date: Wed, 18 Mar 2026 17:02:51 -0700 From: Pawan Gupta To: Maciej Wieczor-Retman Cc: tglx@kernel.org, bp@alien8.de, mingo@redhat.com, darwi@linutronix.de, thuth@redhat.com, dave.hansen@linux.intel.com, ak@linux.intel.com, babu.moger@amd.com, chang.seok.bae@intel.com, peterz@infradead.org, nik.borisov@suse.com, jpoimboe@kernel.org, hpa@zytor.com, xin@zytor.com, maciej.wieczor-retman@intel.com, sohil.mehta@intel.com, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v10 3/3] x86/cpu: Do a sanity check on required feature bits Message-ID: <20260319000244.5nupag2ylneircff@desk> References: <8180d2f5c3da2737167418d3a28b008a933c6408.1773771353.git.m.wieczorretman@pm.me> Precedence: bulk X-Mailing-List: linux-kernel@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: <8180d2f5c3da2737167418d3a28b008a933c6408.1773771353.git.m.wieczorretman@pm.me> On Tue, Mar 17, 2026 at 08:00:22PM +0000, Maciej Wieczor-Retman wrote: > From: Maciej Wieczor-Retman > > After CPU identification concludes, do a sanity check by comparing the > final x86_capability bitmask with the pre-defined required feature bits. > > Signed-off-by: Maciej Wieczor-Retman > Acked-by: H. Peter Anvin (Intel) Reviewed-by: Pawan Gupta