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 smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 50C14C433EF for ; Sat, 5 Feb 2022 00:01:04 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 0365C82A7F; Sat, 5 Feb 2022 00:01:04 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0bj-s3E7EXYJ; Sat, 5 Feb 2022 00:01:01 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp1.osuosl.org (Postfix) with ESMTPS id 92546815AB; Sat, 5 Feb 2022 00:01:01 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 5C5FBC0011; Sat, 5 Feb 2022 00:01:01 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 15A9BC000B for ; Sat, 5 Feb 2022 00:01:01 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id EB10E82A7F for ; Sat, 5 Feb 2022 00:01:00 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QgcV_B4gOLAc for ; Sat, 5 Feb 2022 00:01:00 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by smtp1.osuosl.org (Postfix) with ESMTPS id 51ECA815AB for ; Sat, 5 Feb 2022 00:01:00 +0000 (UTC) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1644019257; 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=ri16KQqpRWhbQ9tq4lko5fBCxFjiFeJpIxcy6locFBk=; b=0PiJFv7Q680b0JcJbCwMzoad2gdGuTL+FEqbch9DbiWYQpYC2RzJNQNZR0SEHAWbcpWtmO IsEKaNIqVJkah7KNUzl6GTQEN1yhBz0iUDGC0vcmRFKWlSC9VqpPkwrNper5XEnHb/DJjP SrCKUni1xCDY7UJy5ocH+9qVsezO30/BSCQi9+xujys3Fu1qdbgeEBpxfYLDbWcjcS0q5h TLHfIA47v3BmLAAOzaTPM4sjfMhDFmqOM7aq+4XoMLkGE9v1KKvMlM26Q34aw64G5cVqj2 YXsJGTku0kJ8hDRdf9JHBDEB5XaM7ST+Y+tpO3YWt6A8XJADAwbXZDt3F0lGzw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1644019257; 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=ri16KQqpRWhbQ9tq4lko5fBCxFjiFeJpIxcy6locFBk=; b=+I+5521Op1f9Yh9qCYj91UeFSGP9ApszIdo7Uvfz1nweusNn4smNTrk9mfSMbAIRL/ua3G rqoCTiOrXMQ9rHCA== To: Fenghua Yu , Dave Hansen , Ingo Molnar , Borislav Petkov , Peter Zijlstra , Andy Lutomirski , Tony Luck , Lu Baolu , Joerg Roedel , Josh Poimboeuf , Jacob Pan , Ashok Raj , Ravi V Shankar Subject: Re: [PATCH v3 09/11] x86/cpufeatures: Re-enable ENQCMD In-Reply-To: <20220128202905.2274672-10-fenghua.yu@intel.com> References: <20220128202905.2274672-1-fenghua.yu@intel.com> <20220128202905.2274672-10-fenghua.yu@intel.com> Date: Sat, 05 Feb 2022 01:00:56 +0100 Message-ID: <87fsoyb2rr.ffs@tglx> MIME-Version: 1.0 Cc: Fenghua Yu , iommu@lists.linux-foundation.org, x86 , linux-kernel X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Fri, Jan 28 2022 at 12:29, Fenghua Yu wrote: > Since ENQCMD is handled by #GP fix up, it can be re-enabled. > > The ENQCMD feature can only be used if CONFIG_INTEL_IOMMU_SVM is set. Add > X86_FEATURE_ENQCMD to the disabled features mask as appropriate so that > cpu_feature_enabled() can be used to check the feature. > > Signed-off-by: Fenghua Yu > Reviewed-by: Tony Luck Reviewed-by: Thomas Gleixner _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu