From nobody Fri Oct 31 03:42:56 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1752533364; cv=none; d=zohomail.com; s=zohoarc; b=Pmc6p/RMSkfYlIB5dhQ5yL2sw9AYh7QP90apBcLgRgh2+W5wvcWTcHJuhK5dd0CiTO52GjiYGeERthyArqRdN0nIr0UEIgcr7sxLQrOgRL1vKpXTryE8m9TybYXsKMm/Z1432QHe1QaGh+ZXTkRhIALM4jrRq8PXr5gVFvUG30U= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1752533364; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=PYagUw7+nV4AIrSjbYjtskD6tyaobfXIr4xaV+yxYuw=; b=FZwSbxRvG+z7BDul7RRlSizzRG+13bpwysVr99qXVmX9jPf8pnwoZ+HcbqAdk2SZ1Em6EyweQpL/jDpoJ0NNZN3axEgF920lHasCDitCJ1SXhQyHC8ZCdjXXzBIXH38gFVFzwG67GWHXs85gwmuCxLWvX0122Cud+YNTM22zfzU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1752533364079253.74142975918278; Mon, 14 Jul 2025 15:49:24 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.1043180.1413333 (Exim 4.92) (envelope-from ) id 1ubRyw-0005Q3-Dx; Mon, 14 Jul 2025 22:49:10 +0000 Received: by outflank-mailman (output) from mailman id 1043180.1413333; Mon, 14 Jul 2025 22:49:10 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1ubRyw-0005Pm-A5; Mon, 14 Jul 2025 22:49:10 +0000 Received: by outflank-mailman (input) for mailman id 1043180; Mon, 14 Jul 2025 22:49:08 +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 1ubRyu-00047A-4F for xen-devel@lists.xenproject.org; Mon, 14 Jul 2025 22:49:08 +0000 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [2a00:1450:4864:20::329]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id bfe494a0-6104-11f0-a319-13f23c93f187; Tue, 15 Jul 2025 00:49:07 +0200 (CEST) Received: by mail-wm1-x329.google.com with SMTP id 5b1f17b1804b1-4535fc0485dso6184665e9.0 for ; Mon, 14 Jul 2025 15:49:07 -0700 (PDT) Received: from lab.home (dynamic-2a00-1028-83a4-4bca-c0bb-96ff-feed-9d50.ipv6.o2.cz. [2a00:1028:83a4:4bca:c0bb:96ff:feed:9d50]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3b5e8bd18ffsm13288903f8f.9.2025.07.14.15.49.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Jul 2025 15:49:06 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version 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: bfe494a0-6104-11f0-a319-13f23c93f187 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1752533347; x=1753138147; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=PYagUw7+nV4AIrSjbYjtskD6tyaobfXIr4xaV+yxYuw=; b=CT0xK/VRPvLF9DlXfhh0fYneYEjkJU9MvXXGJDoyWlTXefzRPd1b2bNeQ0/2DWCu9B WZWQq9Di6Hfdoz4XvkoCnfbfoXBa5cugCplmktfn81IdLpLWF0IaeL13679DXks2Azeb K5BQK/FR/HE1+lJe61fdFk/WB5aaq69U0P6EqFj2vsa+6ZkXfQ4ouWGOkacpg4Tdnbq8 68jMGLLxogftxg0Y7Huwjt/Chun9+0tTufrWqVcMli/jyhLqF6Zk8QIMO0Q6LRKMktOZ 19RhFCSaCIyQ9ZILP/5zKLsz16ZkwuoKqVrTV7/A42M23dZoxoLbBgBDaoOCV6wU+8R3 fKWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752533347; x=1753138147; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=PYagUw7+nV4AIrSjbYjtskD6tyaobfXIr4xaV+yxYuw=; b=acCiKrDgxh/9hCEk3QbA0llNst9+PTR4Wt+kuAd/PWD60oKdpcEdkRdlCpVZ/N0Fs0 cum4SeoeBe0GhBn+JYFKLYaPrscuWmSxiAq7sywRQ0hsFw2Fe+ON/lD902C0Up5YIjHZ lWWG5onD/gv4MbsyiUAG47iObF2X5NU2V+gOAuEUdqyKvLtRP54/JWMIFWPTPNGZ98Gw PEU8dMLshN4fw3Ng47Nlr5G2ceWWTK4Ya0KghTTH2Qo9YQaCuK9fqvQVs28u1nJLvMZU cC1S6ajVk/6b0ihp4BBcgmj1GmSFZ1myOhT5/8nriax9lTZnohYhWgnpm3zAbEY5ukw8 6EtA== X-Gm-Message-State: AOJu0YxubAtEgbk6nd7uVrKqrWMePAzxB03fCYwK64XjUx/ZHklmkddZ 8atiSRahkgjKIIS1TYXsk1fPB+AR5qphlFP7iHs2eYjaygm0HCiHvnAJOADG8g== X-Gm-Gg: ASbGncsYW3pRpS4K86XR3yYFFvRMTBBvU61MlIjbS4SOHtGRJS2a00psK7iklB6JY39 oV4MsSz6IFhTxTJwoazmsA/v5e1r9xOfLGzKHJ3HOH3CzdUlC/7ZIJaXdUBpm/8hptfZZYeP7np iSK9bjpndSYhlgClL8mmtLTAPoJQbVkGqtVtL8lh58SU6NtG1KxuBax9qnnzP72sQKtY6xb1K3+ EAkNer6T9nANdfuFtHKQuENC0jIw+8pp7CZEx01BLWCdjeE2j7fFXol9PHg7VKypzETMCdGgDnh CEYSuO0ichzj5XKkryxftprxSObI5JM2b7UjfPcRjUdISAtMY3hwApCPlxctLNuBWipvtH/Vn5V 9fZGwyG2wk8Ax4MzbgTTuf05BO3KPwKfHJZwQZ+oZfEJNcKFf70HHBaeBCXMJWTxADjSjS2VBr/ lBVJt0157ezExTPq0cmTlakQ== X-Google-Smtp-Source: AGHT+IHmWKQU6lUniaz21l7BAYPMklvfsfcW1ZxGsPJxx9MLKqe2Kg3PcisaukB/h4YssXGKwjiZdA== X-Received: by 2002:a05:6000:2908:b0:3a5:77ea:2d36 with SMTP id ffacd0b85a97d-3b5f2e4cf7amr4533746f8f.10.1752533346763; Mon, 14 Jul 2025 15:49:06 -0700 (PDT) From: "=?UTF-8?q?Petr=20Bene=C5=A1?=" X-Google-Original-From: =?UTF-8?q?Petr=20Bene=C5=A1?= To: xen-devel@lists.xenproject.org Cc: =?UTF-8?q?Petr=20Bene=C5=A1?= , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Subject: [PATCH v8 6/7] xen/x86: Disallow creating domains with altp2m enabled and altp2m.nr == 0 Date: Mon, 14 Jul 2025 22:48:53 +0000 Message-Id: <569006946c0586a6befba0062eaef96ff0d72c0c.1752531797.git.w1benny@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1752533366038116600 From: Petr Bene=C5=A1 Since libxl finally sends the altp2m.nr value, we can remove the previously introduced temporary workaround. Creating domain with enabled altp2m while setting altp2m.nr =3D=3D 0 doesn't make sense and it's probably not what user wants. Signed-off-by: Petr Bene=C5=A1 Acked-by: Jan Beulich --- xen/arch/x86/domain.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c index 155ea1f79f..872e97999c 100644 --- a/xen/arch/x86/domain.c +++ b/xen/arch/x86/domain.c @@ -739,8 +739,9 @@ int arch_sanitise_domain_config(struct xen_domctl_creat= edomain *config) =20 if ( !config->altp2m.nr ) { - /* Fix the value to the legacy default */ - config->altp2m.nr =3D 10; + dprintk(XENLOG_INFO, + "altp2m must be requested with altp2m.nr > 0\n"); + return -EINVAL; } =20 if ( config->altp2m.nr > MAX_NR_ALTP2M ) --=20 2.34.1