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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 9573AC18E7C for ; Wed, 26 Feb 2025 14:39:11 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.896764.1305516 (Exim 4.92) (envelope-from ) id 1tnIYr-0007F4-DS; Wed, 26 Feb 2025 14:38:57 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 896764.1305516; Wed, 26 Feb 2025 14:38:57 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tnIYr-0007Ex-AM; Wed, 26 Feb 2025 14:38:57 +0000 Received: by outflank-mailman (input) for mailman id 896764; Wed, 26 Feb 2025 14:38:56 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tnIYq-0007Er-02 for xen-devel@lists.xenproject.org; Wed, 26 Feb 2025 14:38:56 +0000 Received: from mail-ej1-x62c.google.com (mail-ej1-x62c.google.com [2a00:1450:4864:20::62c]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 67aef0d1-f44f-11ef-9aae-95dc52dad729; Wed, 26 Feb 2025 15:38:55 +0100 (CET) Received: by mail-ej1-x62c.google.com with SMTP id a640c23a62f3a-abbdf897503so177082166b.0 for ; Wed, 26 Feb 2025 06:38:55 -0800 (PST) Received: from [172.24.85.51] ([94.75.70.14]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-abed1da56d6sm334173366b.86.2025.02.26.06.38.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 26 Feb 2025 06:38:54 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 67aef0d1-f44f-11ef-9aae-95dc52dad729 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1740580735; x=1741185535; darn=lists.xenproject.org; h=in-reply-to:from:content-language:references:cc:to:subject :user-agent:mime-version:date:message-id:from:to:cc:subject:date :message-id:reply-to; bh=FeuuygS1UZMe0F11CuqSRxtjYoKMD7IPMlmoZa7WrgE=; b=Bc+LgfHPGVA8WA0ndzcHYVr/9UnktkPoG+UQbqW08wShHrGheabIDDVjMye4z5IONP v5eJI3d1aKbR0yXicHCdWD33daEBuy9GVLhGDs0vCAvzViLEdxWPq1TiH1qGY4OceI9M glKQCahUln/ubpMNIeOrmImL+f5QSn/rbmbv/acbAPKR+rujzzuvFRLXMGOi9LuDtcRG +lF1tXPNBtEaYNCkWwh94GYDBqMWEcBaIvnJ6RLCJPfZm8J6jPNYg9grbau9OK3hTErN k0/20AyWTI2qfYPfG5dr7lCtC865RZNVcYjEG1sHx5L8NVDpH0GjykKxKuv3xboohbuQ JyjA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740580735; x=1741185535; h=in-reply-to:from:content-language:references:cc:to:subject :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=FeuuygS1UZMe0F11CuqSRxtjYoKMD7IPMlmoZa7WrgE=; b=m4e7kQwK9Vg8Kz6+jgQKl4vUpqdQ/IgiClDlLwoD/oVMKeZLs1CNEzifjUZfRlUXqq pu5ZhfmHR4N2v8jVHl8uRag41Fm3tc4UdTTdw7Tad7M+n+rxoLnhXmXxwmJu6quZQkR/ iMrUwvEN+fDuJOmjiCBEs9YfH0os8CTPssM8/sIRmyaR6PIPXtazs6zppNtxebAqAIIy kI2lHLc8dRQnoGdrDeJM9rAIfbipE5Ia8lEZwsjxqj02Oo9qoId8HMz3NwtOCOH8fI37 6ZxtCk7tN3KKRYKdQRhtnLLVy7HcUQ5+6qCqXVdgQHvsOMQQPVPk+Y3aj28uiQ8eNqJb SaLA== X-Forwarded-Encrypted: i=1; AJvYcCUDT6oUMhGxP8L9LksBF26jQET1DjdSruzCLwdyb1ml1MEQP0YuB7sOpm454CjeQ6trJubccJSWMUw=@lists.xenproject.org X-Gm-Message-State: AOJu0YxmokwP6MDBDy35W/WPpt7j5R7ZhS0em3YbFtDKwzLgoJ0KCgJj TQLNLwNsTyNZ5r5w9L+o0wvc8HWBdeaE3gjzondBpit8mnSCClCZ X-Gm-Gg: ASbGncu4fiXvU5xaeOTI6L8iy84EBW4s8mtWLNGy2fxEQFYHxdblCNMet4PfUxKWqD+ Bpz0gJioEj7GeyMowD/cLAiaxPlhbpm3c+PedsG9IfnIT0yUe3LcDeV2jz9SbDclvrFTawtarmU K4LlxzBRp5QRyDPkozvGFHm78TpIVV0gABcvuXkoOH2lzs6MPQCD/QKmGAWeMt78zHsjN5cK27w 2b1xcsy2CJCw2XFTU1+xU7JCBob/7WJrlRqO0IYUX0gma5WhCIKhhphocugN18ZLaErDYzfR1QB 3C81OFnITC7o4qAOFasks7g+8wul0i+SDw8= X-Google-Smtp-Source: AGHT+IGwbTpvBTpah/RLh75Cg7IVG5kIZSQjtzsNGTFn4dU4I1VSrzPHYlB7QQ/nww3tFFHSrIpaDA== X-Received: by 2002:a17:906:3151:b0:ab6:504a:4c03 with SMTP id a640c23a62f3a-abc0b037859mr1699007866b.24.1740580734506; Wed, 26 Feb 2025 06:38:54 -0800 (PST) Content-Type: multipart/alternative; boundary="------------tek504RAvAtI3k3yrr9upT33" Message-ID: <38834638-df7a-4631-99e1-5596bb65d136@gmail.com> Date: Wed, 26 Feb 2025 15:38:52 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH for 4.21 v7 3/4] xen/riscv: make zbb as mandatory To: Jan Beulich Cc: Alistair Francis , Bob Eshleman , Connor Davis , Andrew Cooper , Anthony PERARD , Michal Orzel , Julien Grall , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= , Stefano Stabellini , xen-devel@lists.xenproject.org References: <611e289e357a26490b95b2aa93d7288c77787171.1740071755.git.oleksii.kurochko@gmail.com> Content-Language: en-US From: Oleksii Kurochko In-Reply-To: This is a multi-part message in MIME format. --------------tek504RAvAtI3k3yrr9upT33 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2/26/25 1:58 PM, Jan Beulich wrote: > On 20.02.2025 18:44, Oleksii Kurochko wrote: >> According to riscv/booting.txt, it is expected that Zbb should be supported. >> >> Signed-off-by: Oleksii Kurochko >> --- >> Changes in v7: >> - new patch. >> --- >> xen/arch/riscv/arch.mk | 7 ++----- >> 1 file changed, 2 insertions(+), 5 deletions(-) > Please can you also tidy asm/cmpxchg.h of ANDN_INSN() then? Sure, I can leave only: /* * To not face an issue that gas doesn't understand ANDN instruction * it is encoded using .insn directive. */ #define ANDN_INSN(rd, rs1, rs2) \ ".insn r OP, 0x7, 0x20, " rd ", " rs1 ", " rs2 "\n" ~ Oleksii --------------tek504RAvAtI3k3yrr9upT33 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit


On 2/26/25 1:58 PM, Jan Beulich wrote:
On 20.02.2025 18:44, Oleksii Kurochko wrote:

According to riscv/booting.txt, it is expected that Zbb should be supported.

Signed-off-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
---
Changes in v7:
 - new patch.
---
 xen/arch/riscv/arch.mk | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

Please can you also tidy asm/cmpxchg.h of ANDN_INSN() then?
Sure, I can leave only:
/*
 * To not face an issue that gas doesn't understand ANDN instruction
 * it is encoded using .insn directive.
 */
#define ANDN_INSN(rd, rs1, rs2)                 \
    ".insn r OP, 0x7, 0x20, " rd ", " rs1 ", " rs2 "\n"

~ Oleksii
--------------tek504RAvAtI3k3yrr9upT33--