From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x225vAIhwgkMqUVxU6uI9L5UQ6JOgVJsmnSM5NcPZsNs4HlyEISSPtaOZG5D6d6SxLYdLB6ji ARC-Seal: i=1; a=rsa-sha256; t=1516787889; cv=none; d=google.com; s=arc-20160816; b=zO6wWTjwb6c5isDSB/1wIGZym0SWHQexig2W/hGhmtgQkX9i5t/ZFh/I/h6eanRHq3 GlJyoQZAi497hK51+/lNOKKuQU+9W4av0ydXkOJ6BvQaj8Y9+3gszRBJJ6oYsu5aydOR 1K4g3K4XYFyNBOeRflpmxWDB03yBTUpvoa8/bHVPQPw3WEU+D7GuEjXg0SxsC5ynonvP yT5WNsnseL48bvBQsk8dfb2xc/i8A+Rdpa4Mj0P5m1OV96fVBNkT5/1sNreocNqOeXL9 zZeXN8ZmKbJqFSq4zLazQfgJLC2EJHUzmUrRhcrVslTfxILARRgsBNBsApSk2vjZNPCk OViA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date:arc-authentication-results; bh=8x0yAWgmzZwZya8OyB/yubx3oMQAtGBacUBJPGjf4ZE=; b=Gdj1Kvr1byVhbhoaYobsYrffhLQgd9n56GSobjbw7j9rXuOGOa5aQbUUY/xx1sXKJG SOkVRFDqReUB8xILVk+6mAifCRCqaED8Mjisu9z4GzQFYUcNhOFGSG74JMDPepAjJoRD E34w5tDAsp4+FX21LKDr3Nl1f9nlKn03b8Ga3DYK0E24KQQhD5tEsPVPtf2ROmOAwWJQ hVXLH8q9OXyCdPQRTvbrs6+f19hHFQfGoxCdzYfzE9d8TiIVJZsJ7Gk8bHG6WrIrHTj0 gPHrkL5gxLal+YBIp5wg8fVyE+4DziSxD0CCXGnXXuUdhF6dBk12B64SqQorQAZHhxk2 sJmQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of bp@alien8.de designates 2a01:4f8:190:11c2::b:1457 as permitted sender) smtp.mailfrom=bp@alien8.de Authentication-Results: mx.google.com; spf=pass (google.com: domain of bp@alien8.de designates 2a01:4f8:190:11c2::b:1457 as permitted sender) smtp.mailfrom=bp@alien8.de Date: Wed, 24 Jan 2018 10:58:03 +0100 From: Borislav Petkov To: Kees Cook Cc: Jiri Kosina , David Woodhouse , Andi Kleen , Paul Turner , LKML , Linus Torvalds , Greg Kroah-Hartman , Tim Chen , Dave Hansen , Thomas Gleixner , Rik van Riel , Peter Zijlstra , Andy Lutomirski , Alan Cox , X86 ML , Tom Lendacky , Josh Poimboeuf Subject: Re: [PATCH v8 04/12] x86/spectre: Add boot time option to select Spectre v2 mitigation Message-ID: <20180124095803.fcnq3g4b5xtebdtr@pd.tnic> References: <1515707194-20531-1-git-send-email-dwmw@amazon.co.uk> <1515707194-20531-5-git-send-email-dwmw@amazon.co.uk> <20180123224014.dsbzps4hydt6h7ed@pd.tnic> <20180123230545.jufkdgttxe4eiswf@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170609 (1.8.3) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1589334464875796449?= X-GMAIL-MSGID: =?utf-8?q?1590467378271017769?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Wed, Jan 24, 2018 at 11:32:00AM +1100, Kees Cook wrote: > I've wanted this for a while (especially for the coming detected > support for stack protector). Having more than just the clfags is, I > think, important. We'd likely want to record the entire environment > (compiler version, linker version, flags on both, etc). ... which makes me think of /proc/config.gz Can we do something like that here too? -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.