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[2a00:1028:83a4:4bca:c0bb:96ff:feed:9d50]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4560f22cd14sm84787075e9.30.2025.07.15.01.31.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Jul 2025 01:31:22 -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: 1748a187-6156-11f0-b894-0df219b8e170 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1752568283; x=1753173083; 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=UQgL+SvrJeR0wpvewHvyxRoYLRLf1UohVol47L4QPt23/JB25kGKrhWped1CqjvnEj NshpbgGENelyonjFtJXZNZNHiZjyvXogotEt3NsXIsOUwSVRWOd4SywFkdpzTSR1lvV2 M+o4NVNF6+s/YA8W5hEaBaFX/BVtlBOVJZd6Xjk3CHS3/lBL9PAEl7kOnFMgl/rcPv2x hsIJDHiNL/hVJcKpYwIVETg/47ZVdY87gFlUaOflfnCushpcyVcUM4THlNF7uNq2/tzY 2B+vJBG6jb/1qJgFFmpYKwH+Zsb0WY6bcPXe4ePquywJdOWDPsqwzXsoPdWLM8f2Cult rYRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752568283; x=1753173083; 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=CAGe1Z/SS4hdREFR6zJvb1oR5ykvCf6WtE4Q1v5I/Q78II5ogxi5m2KcQKJrl6kGhh l0pFxMsvft9fg0M7CGeefoGeAq1aVLLVAiAvYCjxTpYjR8UXBJSn5cOg7PggSWCNbNNu NmOzJF/1IJGKQmaIV4YT12LpRTGuK298wwd06k8uQDy5EdV5ponFQlXQPAFIQJNWR077 yd+uxWAmo0IRAKuIMv+MqtyWtr+HBteve+vCjnvwx03fMBjQ0Fz+7i7bhUSC4eoqFm8z tXTHPsJAoisECyWwsFd/6ArR2rQn8YNLgh22RilKlkt3zZ1IlS52XNt2m68NoDyG6X5O 945w== X-Gm-Message-State: AOJu0YzqXkH4ErVbhgIQLT0tByWYo5TCvlyJjp/S6vTS9MC4mLwtfCze /ztlL+gxNks1Dr/rMO2mJCQI9DxyIIeJdRz5e4dUXhvW8twcCb/+zstAnFbHeA== X-Gm-Gg: ASbGncunGMlEy4olgQq426oKlkCGW7Rye7hrue+PpYkuX4cNJDhMjRTlDWBEr5ZpqZm l5OtYe3tLN3Ocex1sYQs2RMtovm9dv1ZYt7wDrZl13o9WEiaY95iJtRgBA9yLgGpsVTYwGDv77M cofbsXA2NtnUcOi5NsDcT5I/hEzE8KjusF6IPgy4hO1iq2hDnKEyiDc0Zl9VnjwO9ufbds3kBJX fokb++hlNGz0p6wq4tFdNFg1IqjFq3FdFfy18Z9Ih9IaXCfEEf7n6i5NrNr9+HwMB/1fsDpOIfu 8MzzJ+HZ37bYZyCxlGCdFusc/qkMM/IKB+863ZFgDqVSrINO0LiGWGgwXs4Nid4gElvw5UZX9y9 mj+cDhDEmIodm4LejzcygjqvWg3sYyQaANVZd71RXEQws0KQ9I6wJ5pDDjX7Vgyd4GsuOKNEhbB ofdQfjiHKCy9818MqqYPn8GA== X-Google-Smtp-Source: AGHT+IFFoID+G2TNmh2plFf9xbnbaz+gXK1QEu42r2amU2GVns+zxWB7UweKbNCfXyzbaUsczLSOGw== X-Received: by 2002:a05:600c:198d:b0:456:12a9:e92 with SMTP id 5b1f17b1804b1-4562919403fmr3164815e9.5.1752568282407; Tue, 15 Jul 2025 01:31:22 -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 v9 5/6] xen/x86: Disallow creating domains with altp2m enabled and altp2m.nr == 0 Date: Tue, 15 Jul 2025 08:31:13 +0000 Message-Id: <7bdb1c10d8faee3853e1f2a81fce1c7f20424e88.1752568020.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: 1752568307816116600 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