From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8A9ECC4167B for ; Fri, 8 Dec 2023 20:18:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1+xsPVIQ7MQbafTjv39rx3ZORAk5l7MXJnmHWW2ZgNA=; b=Nh8UBr0GQ49I3B axvYZDdOj8hIg+/Jazv2ipX8m5+bGz8EFlvPlxg27+dHV3umUtxceS11ssW2XlzUwLRXVg+NthLO5 ZKL6QXgDNZ1wEts+/6ORor/FjDxhq56Ehj2utMHeUWpUwfEE8e5wXaWq9u+djoYpLUBxS3VhHiioL JKBnJ6HXu7kYzL1lRm4SvN6uMWf3ekdhWss+m/i9MwuLgq58D/rXBh9GG060QvEaYN8vFyaPQAmcz kj4AMf5HVQkbBJRs+oBt/D0wPC+66tSs/aEPSDGyRJ9e4AMEsvANgWIUb4BMiowBUNHpr/Em9oBQc ak90/FeuHE3FYjxHpo+Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rBhIq-00GT2d-1M; Fri, 08 Dec 2023 20:18:28 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rBhIp-00GT2V-0T for linux-riscv@bombadil.infradead.org; Fri, 08 Dec 2023 20:18:27 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Transfer-Encoding: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Sender:Reply-To:Content-ID:Content-Description; bh=rRfUKKpVJaX2GBwm20UFJtXdCC5Gt18eCCN9NLFBXGg=; b=S1ntypyXXnH5/Zhmllff4W7CqE zvKEGCwpJiV6CNOuMqcAx4RdNPWtDIz2wWfgO64jF9VTQsJPihe7ZgsJ5Aui0fouYWgOcD9MnMek/ Qw0qaDYlc8wkXBNuBNMpvKGH1proCkWQ7owqEVwrXCdttqYkXESI6larGqgZwhg9OBfBUOQtOI/29 x071uzp8HcuHIXHZAB0KuEs0TbzqucgbaSkUc/nB5qIR+l6CS7NooXMW1vzUQHxDz0ebc3/9JpYtW cVJqlZa1MBgZfaxao7Q0joX1+LKJW8Lf1KS/RKmyC2puCXnf8JHhnhKq7CsotPXpzzlAbIkfFuetu UOGg6Fiw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1rBhIi-006Ud2-EY; Fri, 08 Dec 2023 20:18:20 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 5BE5B3003F0; Fri, 8 Dec 2023 21:18:19 +0100 (CET) Date: Fri, 8 Dec 2023 21:18:19 +0100 From: Peter Zijlstra To: Alexei Starovoitov Cc: Jiri Olsa , Song Liu , Song Liu , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , X86 ML , "H. Peter Anvin" , "David S. Miller" , David Ahern , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Arnd Bergmann , Sami Tolvanen , Kees Cook , Nathan Chancellor , Nick Desaulniers , linux-riscv , LKML , Network Development , bpf , linux-arch , clang-built-linux , Josh Poimboeuf , Joao Moreira , Mark Rutland Subject: Re: [PATCH v2 2/2] x86/cfi,bpf: Fix BPF JIT call Message-ID: <20231208201819.GE36716@noisy.programming.kicks-ass.net> References: <20231204183354.GC7299@noisy.programming.kicks-ass.net> <20231206163814.GB36423@noisy.programming.kicks-ass.net> <20231206183713.GA35897@noisy.programming.kicks-ass.net> <20231207093105.GA28727@noisy.programming.kicks-ass.net> <20231208102940.GB28727@noisy.programming.kicks-ass.net> <20231208134041.GD28727@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gRnJpLCBEZWMgMDgsIDIwMjMgYXQgMTE6MzI6MDdBTSAtMDgwMCwgQWxleGVpIFN0YXJvdm9p dG92IHdyb3RlOgo+IE9uIEZyaSwgRGVjIDgsIDIwMjMgYXQgNTo0MeKAr0FNIFBldGVyIFppamxz dHJhIDxwZXRlcnpAaW5mcmFkZWFkLm9yZz4gd3JvdGU6Cj4gPgo+ID4gT24gRnJpLCBEZWMgMDgs IDIwMjMgYXQgMTE6Mjk6NDBBTSArMDEwMCwgUGV0ZXIgWmlqbHN0cmEgd3JvdGU6Cj4gPiA+IFRo ZSBvbmx5IHByb2JsZW0gSSBub3cgaGF2ZSBpcyB0aGUgb25lIFhYWCwgSSdtIG5vdCBlbnRpcmVs eSBzdXJlIHdoYXQKPiA+ID4gc2lnbmF0dXJlIHRvIHVzZSB0aGVyZS4KPiA+Cj4gPiA+IEBAIC0x MTksNiArMTE5LDcgQEAgaW50IGJwZl9zdHJ1Y3Rfb3BzX3Rlc3RfcnVuKHN0cnVjdCBicGZfcAo+ ID4gPiAgICAgICBvcF9pZHggPSBwcm9nLT5leHBlY3RlZF9hdHRhY2hfdHlwZTsKPiA+ID4gICAg ICAgZXJyID0gYnBmX3N0cnVjdF9vcHNfcHJlcGFyZV90cmFtcG9saW5lKHRsaW5rcywgbGluaywK PiA+ID4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICZzdF9v cHMtPmZ1bmNfbW9kZWxzW29wX2lkeF0sCj4gPiA+ICsgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAvKiBYWFggKi8gTlVMTCwKPiA+ID4gICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGltYWdlLCBpbWFnZSArIFBBR0VfU0laRSk7 Cj4gPiA+ICAgICAgIGlmIChlcnIgPCAwKQo+ID4gPiAgICAgICAgICAgICAgIGdvdG8gb3V0Owo+ ID4KPiA+IER1aCwgdGhhdCBzaG91bGQgb2Zjb3Vyc2UgYmUgc29tZXRoaW5nIG9mIGR1bW15X29w c190ZXN0X3JldF9mbiB0eXBlLgo+ID4gTGV0IG1lIGdvIGZpeCB0aGF0Lgo+IAo+IFJpZ2h0LiBU aGF0IHNob3VsZCB3b3JrLgo+IEEgYml0IHdhc3RlZnVsIHRvIGdlbmVyYXRlIHJlYWwgY29kZSBq dXN0IHRvIHJlYWQgaGFzaCBmcm9tIGl0Cj4gdmlhIGNmaV9nZXRfZnVuY19oYXNoKCksIGJ1dCBp dCdzIGEgbmVhdCBpZGVhLgoKUmlnaHQsIGJpdCB3YXN0ZWZ1bC4gQnV0IHRoZSBhZHZhbnRhZ2Ug aXMgdGhhdCBJIGdldCBhIHN0cnVjdHVyZSB3aXRoCnBvaW50ZXJzIHRoYXQgZXhhY3RseSBtaXJy b3JzIHRoZSBzdHJ1Y3R1cmUgd2UncmUgd3JpdGluZy4KCj4gSSBndWVzcyBpdCdzIGhhcmQgdG8g Z2V0IGtjZmkgZnJvbSBfX0FERFJFU1NBQkxFIGluIHBsYWluIEMKPiBhbmQgc3ByaW5rbGluZyBh c20oImNmaV94eHg6IC5sb25nICAgX19rY2ZpX3R5cGVpZC4uLiIpOyBpcyB3b3JzZT8KPiBFdmVu IGlmIGl0J3MgYSBtYWNybyA/CgpJIGNhbiB0cnkgdGhpcywgYnV0IEknbSBub3Qgc3VyZSBpdCds bCBiZSBwcmV0dHkuIEV2ZW4gaWYgSSB3cmFwIGl0IGluIGEKZGVjZW50IG1hY3JvLCBJIHN0aWxs IGdldCB0byBkZWZpbmUgYSB0b24gb2YgdmFyaWFibGVzIGFuZCB0aGVuIHdyYXAgdGhlCmxvdCBp bnRvIGEgc3RydWN0dXJlIC0tIG9uZSB0aGF0IGV4cGVjdHMgZnVuY3Rpb24gcG9pbnRlcnMuCgpJ J2xsIHNlZSBob3cgaG9ycmlibGUgaXQgd2lsbCBiZWNvbWUuCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGlu dXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9t YWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2Cg==