From nobody Mon Feb 9 23:43:23 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; 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=fail(p=none dis=none) header.from=arm.com ARC-Seal: i=1; a=rsa-sha256; t=1606406016; cv=none; d=zohomail.com; s=zohoarc; b=SvSS+jqxwacn2iCz5MwFGr8jlXbj8kCX5c5uvGrKLiUqj69+XA6vgX4g7AMq6NAIIAvRri7T1YY8WkOmcIXrN58KQ8eIgAMutzY/eEqyjiAk8iPe0kBWDmvfAU72WLb/jAdXPZd8gS9pXuFp6t/GIg+ytLPq8Pbiu2X8alMk9Js= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1606406016; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=YWPKqPfcARpI2RxD9UWSgSD2OZKE76zkOoqnyYaYxxk=; b=h5Zfz/6UxUAP5dJHzMzDPZrVnck5/V0IBLJssJWD8lYeIoWl3KqVpO9bhBug3Lfb6uc72t0E9fKCMiEAzb6u7duQUBQtSn0wy2Be6lg27oKKiP0y24SYSD79GRupiVzyM1Q37jQnKb4V9Dl45fyVOa8NS32vjcth7mjIb3t7pcM= ARC-Authentication-Results: i=1; mx.zohomail.com; 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=fail header.from= (p=none 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 1606406016084736.1228092373977; Thu, 26 Nov 2020 07:53:36 -0800 (PST) Received: from list by lists.xenproject.org with outflank-mailman.38708.71527 (Exim 4.92) (envelope-from ) id 1kiJaG-0004fP-83; Thu, 26 Nov 2020 15:53:24 +0000 Received: by outflank-mailman (output) from mailman id 38708.71527; Thu, 26 Nov 2020 15:53:24 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kiJaG-0004f6-0u; Thu, 26 Nov 2020 15:53:24 +0000 Received: by outflank-mailman (input) for mailman id 38708; Thu, 26 Nov 2020 15:53:23 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kiJaF-0004Ch-IV for xen-devel@lists.xenproject.org; Thu, 26 Nov 2020 15:53:23 +0000 Received: from foss.arm.com (unknown [217.140.110.172]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTP id a4884ce1-4f93-440f-a742-a98e93937557; Thu, 26 Nov 2020 15:53:08 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D67FA31B; Thu, 26 Nov 2020 07:53:07 -0800 (PST) Received: from e109506-lin.cambridge.arm.com (e109506-lin.cambridge.arm.com [10.1.199.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 330C63F23F; Thu, 26 Nov 2020 07:53:07 -0800 (PST) Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kiJaF-0004Ch-IV for xen-devel@lists.xenproject.org; Thu, 26 Nov 2020 15:53:23 +0000 Received: from foss.arm.com (unknown [217.140.110.172]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTP id a4884ce1-4f93-440f-a742-a98e93937557; Thu, 26 Nov 2020 15:53:08 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D67FA31B; Thu, 26 Nov 2020 07:53:07 -0800 (PST) Received: from e109506-lin.cambridge.arm.com (e109506-lin.cambridge.arm.com [10.1.199.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 330C63F23F; Thu, 26 Nov 2020 07:53:07 -0800 (PST) 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: a4884ce1-4f93-440f-a742-a98e93937557 From: Bertrand Marquis To: xen-devel@lists.xenproject.org Cc: Stefano Stabellini , Julien Grall , Volodymyr Babchuk Subject: [PATCH 7/7] xen/arm: Activate TID3 in HCR_EL2 Date: Thu, 26 Nov 2020 15:51:09 +0000 Message-Id: <4d48107fb864222aa6f32ebf691e169a14c3e6b9.1606151462.git.bertrand.marquis@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Activate TID3 bit in HSR register when starting a guest. This will trap all coprecessor ID registers so that we can give to guest values corresponding to what they can actually use and mask some features to guests even though they would be supported by the underlying hardware (like SVE or MPAM). Signed-off-by: Bertrand Marquis --- xen/arch/arm/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c index 28d9d64558..c1a9ad6056 100644 --- a/xen/arch/arm/traps.c +++ b/xen/arch/arm/traps.c @@ -98,7 +98,7 @@ register_t get_default_hcr_flags(void) { return (HCR_PTW|HCR_BSU_INNER|HCR_AMO|HCR_IMO|HCR_FMO|HCR_VM| (vwfi !=3D NATIVE ? (HCR_TWI|HCR_TWE) : 0) | - HCR_TSC|HCR_TAC|HCR_SWIO|HCR_TIDCP|HCR_FB|HCR_TSW); + HCR_TID3|HCR_TSC|HCR_TAC|HCR_SWIO|HCR_TIDCP|HCR_FB|HCR_TSW); } =20 static enum { --=20 2.17.1