From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AD59A198A38 for ; Mon, 24 Feb 2025 18:58:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740423506; cv=none; b=cZxJReW8R3e6ONcYFni07bGhNqHBRfk/GADNuu0mqACmZpbNwO/7q1XINu8bxS6107eY8ruYuG9Rth2D3jy8wPxKx8aaS/TjCeX/bSnd+LdIU6jyia9DY8DjbSxeo/xLnMhxPBk5MOav6zBnrngxM+YwU5YDJ56DPbZuBg+uOH4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740423506; c=relaxed/simple; bh=BHb9kF6SiOs8qZi975IWRiNDRw4tcBo+8PbCHcRr9JU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tERD66NKDBl9YlMxZHrvOd6RR1WoeSZAqTqzKGY0p5LdK1SNGf6shtFMvkPtwJ/RSp9XkIcrLaG+ys8RnoYdR/wpzUcSNvkE1t+vTXmu9hDRsX0gFCYwcMMR7uLlQDD/pke4QbyOBfhP4QOx6mbYYvirDO4rcH0O0PnPKplj4mg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=O7JuHQqV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="O7JuHQqV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A1CFC4CED6; Mon, 24 Feb 2025 18:58:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740423506; bh=BHb9kF6SiOs8qZi975IWRiNDRw4tcBo+8PbCHcRr9JU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=O7JuHQqVakD9efmMyIW0LZOWLM52raCDy4DiJb4NzlQmn2Z84JBlbRmo+xTDzJaBX PmrCD3VXImMTdSTmNcO5i5PZGYga3Yp6QAf7X/yDMANrtAOCuztWJ6LMGwf/buglsS bxcBwK7OTszgJWX4hdOfaM6Y38DODIrdhBEl2M1czVu2axBIekPvtIr3iXpGFguSKn nam6I669Nc2dczcj/h6mJNNgTRmEl/FZIVeX0AicQSHdSdVCEBVMl/1IQoXIG5VRA5 yaSqacdpGY0v5JTOh5UrlER0ig2Mpe4X3I1xdUwp3WBdlvOLTlP/XxSZr/C/P1kPzJ kkth+/wF+tB6Q== Date: Mon, 24 Feb 2025 10:58:22 -0800 From: Kees Cook To: Peter Zijlstra Cc: x86@kernel.org, linux-kernel@vger.kernel.org, alyssa.milburn@intel.com, scott.d.constable@intel.com, joao@overdrivepizza.com, andrew.cooper3@citrix.com, jpoimboe@kernel.org, jose.marchesi@oracle.com, hjl.tools@gmail.com, ndesaulniers@google.com, samitolvanen@google.com, nathan@kernel.org, ojeda@kernel.org, alexei.starovoitov@gmail.com, mhiramat@kernel.org, jmill@asu.edu Subject: Re: [PATCH v4 03/10] x86/traps: Decode 0xEA #UD Message-ID: <202502241058.13C1403@keescook> References: <20250224123703.843199044@infradead.org> <20250224124200.166774696@infradead.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250224124200.166774696@infradead.org> On Mon, Feb 24, 2025 at 01:37:06PM +0100, Peter Zijlstra wrote: > FineIBT will start using 0xEA as #UD > > Signed-off-by: Peter Zijlstra (Intel) Yup, looks good. Reviewed-by: Kees Cook -- Kees Cook