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 X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3501C4727C for ; Tue, 29 Sep 2020 11:29:25 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 794CB23D25 for ; Tue, 29 Sep 2020 11:29:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="1KMsU9C+"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="YKpU8IhG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 794CB23D25 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=OdHaEkNnqOdPF+YZyUS5IBorZd/50xPM93tzO5Lf3t0=; b=1KMsU9C+12u1qek9Wiy4BDuYR g9X+ZchKX5swwmHXPxErb2KncU4b7pdobdj4iw1dogT7zhU/iyi7hUBl8CFEnk15yCSXofUuJ4B8b XpOtR0AKqEQ+YbWAZ1i0Fwlli6RCSbL4ix13tAZmtlcilXLnCjpA+Ki+Oabgo17ukbycaLhP0QXTx nyLd/wcCMXjbWbWKVNIpgAsk75jUDDYG8Zw0sEGIraNjaxfCl5+vcG2XHQEf97jwQga+IfDd6jNaG SJKPLHSaqz9pguNNMcriCRXcaQRJbzi4AHmTQfwuAFPM56Wl9FaZh+7O9NGP5wBbRTenYj59wv1ev SvQ4YuCTg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNDnY-00012K-Pz; Tue, 29 Sep 2020 11:27:56 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNDnW-00011w-IE for linux-arm-kernel@lists.infradead.org; Tue, 29 Sep 2020 11:27:55 +0000 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0F25023BE3; Tue, 29 Sep 2020 11:27:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601378873; bh=Ym7BvZ8z7yk7xgSFmEljGwUGi5K68zqHJ372FL0VZ5o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YKpU8IhGRDMSbk9LmtZku70TozQFCq1Nin9QRnMscq7V9Yz4CYUf38AMzZ3yDQIT4 9n5VWCSadKVD2OR5nabJpF/lO91qSXfaulXYgx/Pf8+cdVfhVwsgNB26UBxVOlxmdO WuOwp1tV78AFB3+wHIheb35q0Bm2PpVHE8jKT7Dc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Subject: [PATCH 4.19 169/245] arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register Date: Tue, 29 Sep 2020 13:00:20 +0200 Message-Id: <20200929105955.202724762@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200929105946.978650816@linuxfoundation.org> References: <20200929105946.978650816@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200929_072754_684530_3BD42CBD X-CRM114-Status: GOOD ( 15.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Sasha Levin , Catalin Marinas , Suzuki K Poulose , Marc Zyngier , Anshuman Khandual , stable@vger.kernel.org, James Morse , Greg Kroah-Hartman , Will Deacon , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Anshuman Khandual [ Upstream commit 1ed1b90a0594c8c9d31e8bb8be25a2b37717dc9e ] ID_DFR0 based TraceFilt feature should not be exposed to guests. Hence lets drop it. Cc: Catalin Marinas Cc: Will Deacon Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse Cc: Suzuki K Poulose Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Suggested-by: Mark Rutland Signed-off-by: Anshuman Khandual Reviewed-by: Suzuki K Poulose Link: https://lore.kernel.org/r/1589881254-10082-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- arch/arm64/kernel/cpufeature.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 095dec566275f..de6fa9b4abfa0 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -300,7 +300,7 @@ static const struct arm64_ftr_bits ftr_id_pfr0[] = { }; static const struct arm64_ftr_bits ftr_id_dfr0[] = { - ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 28, 4, 0), + /* [31:28] TraceFilt */ S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 24, 4, 0xf), /* PerfMon */ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 20, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 16, 4, 0), -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel