From nobody Sat Feb 7 08:45:00 2026 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=quarantine dis=none) header.from=suse.com ARC-Seal: i=1; a=rsa-sha256; t=1619102700; cv=none; d=zohomail.com; s=zohoarc; b=CWezs66kWwXV7f9vTGtTdUwsiVV01fwBxsiJ2M+Gg9xmz0EFqyUULCNGOavdT4oU0wRQ3gmD3vFNimdHJSJQrV1YM3cisnFxidM8oPXXOVz8/DEOenl/1ZRHC0Gy9Q7IPWVtwktQL1dSgNkE4ioQFhRgT243ZjVsnZFRoGWRqY0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1619102700; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=CX7ycSIbHLxk9/beplw9uWXkdYfiG5DPYy83G5AM4JE=; b=gbWteRceQ6moy/YG1teQlBpH49WXo5DuULJey216P1R6mYkwHVuhNcqXFhGC8ipr4snGOH7n4uFMe4aPgVhpN4wASB0ZQNQ7xhpusT9/wp9Z9C7fe3PtR5UxKpIF29EXzlVbS3aHy2iSlEGK1yjgDL6mf2wivWhWVVVzDP1SBHY= 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=quarantine dis=none) header.from= Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1619102700220640.4395539200751; Thu, 22 Apr 2021 07:45:00 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.115462.220295 (Exim 4.92) (envelope-from ) id 1lZaZK-0003BS-UU; Thu, 22 Apr 2021 14:44:38 +0000 Received: by outflank-mailman (output) from mailman id 115462.220295; Thu, 22 Apr 2021 14:44:38 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lZaZK-0003BL-RQ; Thu, 22 Apr 2021 14:44:38 +0000 Received: by outflank-mailman (input) for mailman id 115462; Thu, 22 Apr 2021 14:44:37 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lZaZJ-0003BD-Nb for xen-devel@lists.xenproject.org; Thu, 22 Apr 2021 14:44:37 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 22b32c30-555e-4039-b98a-5e5c24665c90; Thu, 22 Apr 2021 14:44:36 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 28625B16A; Thu, 22 Apr 2021 14:44:36 +0000 (UTC) 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: 22b32c30-555e-4039-b98a-5e5c24665c90 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1619102676; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CX7ycSIbHLxk9/beplw9uWXkdYfiG5DPYy83G5AM4JE=; b=rcA4yehWdnrNhng0HkIHI17UjFEXc9hI6PbENa4vqnKqE19m4FAG505qY7Ew/dLNlHe4U7 QkXQ9lUHaPKlMkgQNillDAcGZpSVslNfoJ4a8iq/d0RVENOHruxQw3LSTAmfKWCUCweDXk ooZFonzxWH73Oce3Z+oJqmFsXL9nlzY= Subject: [PATCH v3 02/22] x86/xstate: use xvzalloc() for save area allocation From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , George Dunlap , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <322de6db-e01f-0b57-5777-5d94a13c441a@suse.com> Message-ID: <1fec148f-a5b2-5102-a790-e908d6f040c9@suse.com> Date: Thu, 22 Apr 2021 16:44:36 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: <322de6db-e01f-0b57-5777-5d94a13c441a@suse.com> Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) Content-Type: text/plain; charset="utf-8" This is in preparation for the area size exceeding a page's worth of space, as will happen with AMX as well as Architectural LBR. Signed-off-by: Jan Beulich Acked-by: Roger Pau Monn=C3=A9 --- a/xen/arch/x86/xstate.c +++ b/xen/arch/x86/xstate.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -522,7 +523,7 @@ int xstate_alloc_save_area(struct vcpu * =20 /* XSAVE/XRSTOR requires the save area be 64-byte-boundary aligned. */ BUILD_BUG_ON(__alignof(*save_area) < 64); - save_area =3D _xzalloc(size, __alignof(*save_area)); + save_area =3D _xvzalloc(size, __alignof(*save_area)); if ( save_area =3D=3D NULL ) return -ENOMEM; =20 @@ -543,8 +544,7 @@ int xstate_alloc_save_area(struct vcpu * =20 void xstate_free_save_area(struct vcpu *v) { - xfree(v->arch.xsave_area); - v->arch.xsave_area =3D NULL; + XVFREE(v->arch.xsave_area); } =20 static unsigned int _xstate_ctxt_size(u64 xcr0)