From patchwork Thu Oct 10 08:36:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 11182963 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3B1B776 for ; Thu, 10 Oct 2019 08:52:11 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1960E22C9D for ; Thu, 10 Oct 2019 08:52:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="W2ctVQ6G"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="TXwnPRpf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1960E22C9D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=hYX/gi/Y/8q/cdexGJCcon9SAqxDWHrnCREfp17iFaA=; b=W2ctVQ6G9pIHUg 240CvkSOxSg8GPNhLlzGdtK1n09sfQ9t1VzNgYVb+6gyvV3EFEP1cyLQuU7178b6saHtwvzU35BTI kOweGRgKfjlwC5cXyNtdYhciSzrFW3YPr4tSpmWRkFg3krmsZdLOyNRohR0Ke3bjdULn7NFpugjYu i1h9NdJg2Uc94KI0vohGyQ7FsSorzDn1r/fdfn70/8FSB/lhxeUf1qX54GZqAzfM4m/EDpx5aS3I9 nep1TAvDfnhLULL64SyUIFSKRF0rZoZDMD43C83vUgN6Vctxtd/xfunxszQPMQ8WpG70nFKy/jHRy sg9+29WqwJ0YdJpxfKnA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iIUB6-0000fE-IS; Thu, 10 Oct 2019 08:52:08 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iIU8h-00055U-3V for linux-arm-kernel@lists.infradead.org; Thu, 10 Oct 2019 08:49:40 +0000 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 2440B218AC; Thu, 10 Oct 2019 08:49:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570697378; bh=hjClmTpggnb7L6mcq55UzXAa9IIEoGjT4X6BTvjO7nk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TXwnPRpfDTRsA+RaSjJASFx8VUh0CkIUN1GC5D+4CafIAHuTQcqy4qWTFa8SOqPjl B9eyopdfhoc0C8zuJtlxG+d8hhcjLTZLPjyNXCEvlnBGYltMttiMY4m47kLpd3lA5Q TsAspoomustQfmxRJtQW1PmRZT6issoTPayUGwQM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 4.19 091/114] arm64: docs: Document SSBS HWCAP Date: Thu, 10 Oct 2019 10:36:38 +0200 Message-Id: <20191010083612.904076126@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191010083544.711104709@linuxfoundation.org> References: <20191010083544.711104709@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-20191010_014939_278458_CE6D9EC9 X-CRM114-Status: UNSURE ( 7.26 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.0 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender 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: Greg Kroah-Hartman , Ard Biesheuvel , Will Deacon , stable@vger.kernel.org, Catalin Marinas Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Will Deacon [ Upstream commit ee91176120bd584aa10c564e7e9fdcaf397190a1 ] We advertise the MRS/MSR instructions for toggling SSBS at EL0 using an HWCAP, so document it along with the others. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas Signed-off-by: Ard Biesheuvel Signed-off-by: Greg Kroah-Hartman --- Documentation/arm64/elf_hwcaps.txt | 4 ++++ 1 file changed, 4 insertions(+) --- a/Documentation/arm64/elf_hwcaps.txt +++ b/Documentation/arm64/elf_hwcaps.txt @@ -178,3 +178,7 @@ HWCAP_ILRCPC HWCAP_FLAGM Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0001. + +HWCAP_SSBS + + Functionality implied by ID_AA64PFR1_EL1.SSBS == 0b0010.