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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3572AC61DA4 for ; Thu, 16 Feb 2023 16:02:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229877AbjBPQB6 (ORCPT ); Thu, 16 Feb 2023 11:01:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229719AbjBPQBv (ORCPT ); Thu, 16 Feb 2023 11:01:51 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id C45AD564A8 for ; Thu, 16 Feb 2023 08:01:46 -0800 (PST) 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 41809168F; Thu, 16 Feb 2023 08:02:29 -0800 (PST) Received: from e126864.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7424F3F881; Thu, 16 Feb 2023 08:01:43 -0800 (PST) From: Kristina Martsenko To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Cc: Catalin Marinas , Will Deacon , Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Zenghui Yu , Mark Rutland , Mark Brown , Luis Machado , Vladimir Murzin , linux-kernel@vger.kernel.org Subject: [PATCH 05/10] arm64: mops: don't disable host MOPS instructions from EL2 Date: Thu, 16 Feb 2023 16:00:07 +0000 Message-Id: <20230216160012.272345-6-kristina.martsenko@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230216160012.272345-1-kristina.martsenko@arm.com> References: <20230216160012.272345-1-kristina.martsenko@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To allow nVHE host EL0 and EL1 to use FEAT_MOPS instructions, configure EL2 to not cause these instructions to be treated as UNDEFINED. A VHE host is unaffected by this control. Signed-off-by: Kristina Martsenko --- arch/arm64/include/asm/kvm_arm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index cd8dd307aaba..f37d37957322 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -94,7 +94,7 @@ #define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H) #define HCRX_GUEST_FLAGS 0 -#define HCRX_HOST_FLAGS (HCRX_EL2_SMPME) +#define HCRX_HOST_FLAGS (HCRX_EL2_SMPME | HCRX_EL2_MSCEn) /* TCR_EL2 Registers bits */ #define TCR_EL2_RES1 ((1U << 31) | (1 << 23)) -- 2.25.1