From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELuCRw71HEHyBHmZ1nLtr5I0eVE6/HWdVIOYphZ/vBe1RcqE3xKWoO+jbTTQyndyTWFVp/fd ARC-Seal: i=1; a=rsa-sha256; t=1520245583; cv=none; d=google.com; s=arc-20160816; b=HHma8A3J1i4FuQ5IaG4/j8qLWB7gRkYq959odS3H3FlAi6OYq7apBjhWLBAHufjbOC 65Nzq1pWMbCgjv4CJ3jkf356bqicS5s4TI5Y1DISo/Ad4fTnLE36kEXwcIBnz3znBqMl 01ZQvuqyobCJUVzQWcSGk8jSYnwNETl7MBj/kMtScqKFkqacDzNDCF9OiPducr8jzaCV BQY/M55FbizyeDekp2f18oiOb12rIbYr5R1eoZpJ+Z9S6kIeHgFwtd/TcX3KfQWVZBeq E/K4I2IYk8jordiGEWaTgX6LfVZSKVYct1wRmheTJKKt2xzCyyMjqTGo12ZQUT3uHbNq /DFQ== 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=VCSyDJ6o//V5UA2socEbBlfgY2mBynjqZB/OUKuB5ePanUXcdD/HH/y3JoJAQbCKEh eTuvfThZqBy04FL5lmzH2zDx8ECVitxIKnPcJvkIkayLpT/Z1t6DsFSkI4Ecpq+FkhuQ TbWrhdalV7Lv3U5yFhaH6AQnvvHIVbysM9HguHG86xM7qbWjdvDV5HS4vB/5GhUFY6B9 aRZ9/rs3ornQtn9iGtUJjqKPrhGREKLQ6KGg0YZNRGN0xeJmPeCxFVB7KXxDSNw+VXvb lnc5WWp/etL5xux7uq/BV8K+Ut9glrDWvDcd+yJqJIjS3dqQscn72VKLFpf8HAzvCfVl qaAg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass (test mode) header.i=@8bytes.org header.s=mail-1 header.b=kMq5PFi0; spf=pass (google.com: domain of joro@8bytes.org designates 81.169.241.247 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=kMq5PFi0; spf=pass (google.com: domain of joro@8bytes.org designates 81.169.241.247 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 33/34] x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32 Date: Mon, 5 Mar 2018 11:26:02 +0100 Message-Id: <1520245563-8444-34-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1520245563-8444-1-git-send-email-joro@8bytes.org> References: <1520245563-8444-1-git-send-email-joro@8bytes.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1594093033146659785?= X-GMAIL-MSGID: =?utf-8?q?1594093033146659785?= 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