From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELvno9DgQbRlBlNXfZ+w2yOBXVB6B8wy071O5hnUt0l0j4RmVORp6/Ej3BsanZxXvlIQME3f ARC-Seal: i=1; a=rsa-sha256; t=1521228613; cv=none; d=google.com; s=arc-20160816; b=d1kJFw9DSJP63/v1JnuxbwN2pcVLcvqAVgTbtU+qMENv5jf93vjAUsLMw4doeDV82H CESC0eCglLiZn6fVqgt9AD9kAxMxGtxWBmJNyUNHs13eFlbT11kRNXwwg7iEbhnio05M OOvDDTKSbCcVMIx7f+82hXgHtfMUkyylHNnyRfiOY1+cGKZmykg2ju2tK3cASuwftW0u w49R8huKXokFlLk6HgK8XE/yRiunYpGCUmsBues3dVW5vTcY9HaAgPy5aDe2UJBYEUXA vTw8RInBX2NdlVdiC1iztWnYIFTCdXAXQ59dB9BL25kzFa4w0jpk9dwGui/n5Glr3UTY XDNA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature:arc-authentication-results; bh=6pKXJr3dQB+EZKAI6Uh1IKsDamXmlHYF3SRvL1fh3Yw=; b=fkrMILaStRz3RzvRoLeJ+Vg8K+A2S6s/JXu3+BhOFI96OZNf+SG7EkhC03l2FzZZqf 0hIrIixPA/jhfEihWOXqGlIDu6FBuZnRJwsSrj5aKxr3egOhEL3WzsMwX5BkeWdGuiOK LwWT/b9gXT5IibFMOECFG6qCaaH4hI3HXFbcPVznjvmaOGchRscy8L+pft3qW4mtdbfJ D/rBb6AontkAA5Uaa/JSMuTppp9uA6u7+VMIQOOL7HYpwOuq1KGMmr/dbuQ6tjctMPtT 1quRm7GFBkQCjpu1X9VdaKJsSuo2JV2Jmoqd1/gT3uv+sscn35J3vOR6ILnf1RyIlmky P+yA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass (test mode) header.i=@8bytes.org header.s=mail-1 header.b=NeSCcwVf; spf=pass (google.com: domain of joro@8bytes.org designates 2a01:238:4383:600:38bc:a715:4b6d:a889 as permitted sender) smtp.mailfrom=joro@8bytes.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=8bytes.org Authentication-Results: mx.google.com; dkim=pass (test mode) header.i=@8bytes.org header.s=mail-1 header.b=NeSCcwVf; spf=pass (google.com: domain of joro@8bytes.org designates 2a01:238:4383:600:38bc:a715:4b6d:a889 as permitted sender) smtp.mailfrom=joro@8bytes.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=8bytes.org From: Joerg Roedel To: Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" Cc: x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Linus Torvalds , Andy Lutomirski , Dave Hansen , Josh Poimboeuf , Juergen Gross , Peter Zijlstra , Borislav Petkov , Jiri Kosina , Boris Ostrovsky , Brian Gerst , David Laight , Denys Vlasenko , Eduardo Valentin , Greg KH , Will Deacon , aliguori@amazon.com, daniel.gruss@iaik.tugraz.at, hughd@google.com, keescook@google.com, Andrea Arcangeli , Waiman Long , Pavel Machek , jroedel@suse.de, joro@8bytes.org Subject: [PATCH 33/35] x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32 Date: Fri, 16 Mar 2018 20:29:51 +0100 Message-Id: <1521228593-3820-34-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1521228593-3820-1-git-send-email-joro@8bytes.org> References: <1521228593-3820-1-git-send-email-joro@8bytes.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1595123814616371996?= X-GMAIL-MSGID: =?utf-8?q?1595123814616371996?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Joerg Roedel Allow PTI to be compiled on x86_32. Signed-off-by: Joerg Roedel --- security/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/security/Kconfig b/security/Kconfig index b0cb9a5..93d85fd 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -57,7 +57,7 @@ config SECURITY_NETWORK config PAGE_TABLE_ISOLATION bool "Remove the kernel mapping in user mode" default y - depends on X86_64 && !UML + depends on X86 && !UML help This feature reduces the number of hardware side channels by ensuring that the majority of kernel addresses are not mapped -- 2.7.4