From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ms.lwn.net (ms.lwn.net [45.79.88.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A714728E0B; Thu, 18 Jan 2024 16:11:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.79.88.28 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705594310; cv=none; b=vED4mcPDvviUPX/XJAwGfuajGyOjBwbIlXMv/tQSoQmZoDdTmTRWivEkLAipRdvCiKw8h6FbsnzNSM3YK4mw0z2LHHPQ1uujbR41qETzSlIkbifWpPSo+6rXh/44iRBn3ziW8h8CmP6n2PVaA7l+BQ8S0yfROmllGmzpJ4iyZaw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705594310; c=relaxed/simple; bh=+amD+bxZBryr3MMtjAsPlP/HGDcam0tceeZ5dyFYnZo=; h=Received:DKIM-Filter:DKIM-Signature:From:To:Cc:Subject: In-Reply-To:References:Date:Message-ID:MIME-Version:Content-Type: Content-Transfer-Encoding; b=qGsp5YCF4LQQnJ6a92asLJfBn/U8hYFQDJPxzz3xec56aakkmG7jEgyMV0Di57+8VGia6zwJ/aS6HYuKjCtZkmkQC13eB3DIMpXhUEND4co7FM4xM2Zn7e7ahyEMItluuNr2VGaQwIbsD0OJYGeicfo4jjp/bW3LLxBb471285k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net; spf=pass smtp.mailfrom=lwn.net; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b=Lzr3rovx; arc=none smtp.client-ip=45.79.88.28 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lwn.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b="Lzr3rovx" Received: from localhost (unknown [IPv6:2601:280:5e00:7e19::646]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 73EE47A21; Thu, 18 Jan 2024 16:11:42 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net 73EE47A21 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1705594302; bh=3HRi5GF1TAeVY+4xKMDRwDNwSXAhBkYztTTb+LS76kQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=Lzr3rovxmvJUfX+bMePUILHF7PgF8v3kiBM5p+bLyZ4I1cZpbR+lL+Yq3sfn5IYVi KURA+k9GC589XVm4nGvW9PUQUf2cL1PnXElx/Isdl6NCxCiJdMEvPNoRG6l8fip/Wu Yclt2QELWVIZWq7E3o4kTlEt77ZEsaGALRZ+NeK6nniAiQg8dgB5ZYLWs2sn8JS0bS /A8boPr0v6/z1r3+wlwr6XsTL3PXLedgYLB+whbvwlU5C1lse1xJIVG88Yce6K1hTS cCX2Zn2yHBfvT/SfC4sbdR6rSzUxti3RlTsa8Evlm15i4kghta4yvZuvogfRujyRq6 ZoS8tRy5bCVsg== From: Jonathan Corbet To: Nikolay Borisov Cc: tglx@linutronix.de, bp@alien8.de, x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] docs: Remove reference to syscall trampoline in PTI In-Reply-To: References: <20231102130204.41043-1-nik.borisov@suse.com> Date: Thu, 18 Jan 2024 09:11:41 -0700 Message-ID: <87edee1v0i.fsf@meer.lwn.net> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Nikolay Borisov writes: > On 2.11.23 =D0=B3. 15:02 =D1=87., Nikolay Borisov wrote: >> Commit bf904d2762ee ("x86/pti/64: Remove the SYSCALL64 entry trampoline") >> removed the syscall trampoline and instead opted to enable using the >> default syscall64 entry point by mapping the percpu TSS. Unfortunately >> the PTI documentation wasn't updated when the respective changes were >> made, so let's bring the doc up to speed. >>=20 >> Signed-off-by: Nikolay Borisov > > Ping Hmm...this has indeed languished for a while. I was waiting for an ack from x86land, but I guess I'll just apply it unless somebody screams. Thanks, jon