From nobody Thu Dec 18 16:17:43 2025 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DADFC254B1B for ; Tue, 25 Mar 2025 12:11:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742904694; cv=none; b=NWWHcCASN6sPCWL/Xm66pkL01m3NxxD+na3S1UILmKTHbwMW8qUiOi9/o7v5dK2Vnxz+pUr9hSlH1ZDC8SO26bER7j10WRZ1JgPvQn9KEOk3XiYYTI1EqMXyGE2rSY8oKcThUvjCW4rz8BRDPdSXjAipgJU5THVDTVellk3iGpY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742904694; c=relaxed/simple; bh=DEC5ifR+Mt8gyk9Zce/fh7iv6TUCsXEt+U7XN+jEuvU=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=s0SHgN9DdMbUve/QeVS+g58Vg4wb3YH5UZ4cyT388ArEEtu6rxWdoM1Am7Euq4J3B1TNOxzF98HTBz+192YvLADQ2lwQI3US0k9osL1/toQ37u7mIzZI01r8g1spyfoKGL6wKI2W2gZxpzZErX1ZJ9raIWR3ZrTTVj1H4b3z5ro= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.48]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4ZMTG54bqgzHrFd; Tue, 25 Mar 2025 20:08:13 +0800 (CST) Received: from kwepemg100001.china.huawei.com (unknown [7.202.181.18]) by mail.maildlp.com (Postfix) with ESMTPS id 72AC618006C; Tue, 25 Mar 2025 20:11:30 +0800 (CST) Received: from huawei.com (10.50.165.33) by kwepemg100001.china.huawei.com (7.202.181.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 25 Mar 2025 20:11:29 +0800 From: Jinqian Yang To: , , CC: , , , , , , , Subject: [PATCH] KVM: arm64: Make HCX writable from userspace Date: Tue, 25 Mar 2025 20:11:26 +0800 Message-ID: <20250325121126.1380681-1-yangjinqian1@huawei.com> X-Mailer: git-send-email 2.33.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemg100001.china.huawei.com (7.202.181.18) Content-Type: text/plain; charset="utf-8" Allow userspace to modify guest visible value for HCX in ID_AA64MMFR1_EL1. Signed-off-by: Jinqian Yang --- arch/arm64/kvm/sys_regs.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 82430c1e1dd0..b105f156bdf6 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2666,7 +2666,6 @@ static const struct sys_reg_desc sys_reg_descs[] =3D { ID_AA64MMFR0_EL1_TGRAN16_2 | ID_AA64MMFR0_EL1_ASIDBITS)), ID_WRITABLE(ID_AA64MMFR1_EL1, ~(ID_AA64MMFR1_EL1_RES0 | - ID_AA64MMFR1_EL1_HCX | ID_AA64MMFR1_EL1_TWED | ID_AA64MMFR1_EL1_XNX | ID_AA64MMFR1_EL1_VH | --=20 2.33.0