From patchwork Mon Jan 9 06:24:00 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jintack Lim X-Patchwork-Id: 9504065 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4DEF360757 for ; Mon, 9 Jan 2017 06:40:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3E4C8280DE for ; Mon, 9 Jan 2017 06:40:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 332CF2811C; Mon, 9 Jan 2017 06:40:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.4 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9054B280DE for ; Mon, 9 Jan 2017 06:40:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754037AbdAIGkW (ORCPT ); Mon, 9 Jan 2017 01:40:22 -0500 Received: from outprodmail02.cc.columbia.edu ([128.59.72.51]:51789 "EHLO outprodmail02.cc.columbia.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760542AbdAIGZh (ORCPT ); Mon, 9 Jan 2017 01:25:37 -0500 Received: from hazelnut (hazelnut.cc.columbia.edu [128.59.213.250]) by outprodmail02.cc.columbia.edu (8.14.4/8.14.4) with ESMTP id v096PXmb005357 for ; Mon, 9 Jan 2017 01:25:36 -0500 Received: from hazelnut (localhost.localdomain [127.0.0.1]) by hazelnut (Postfix) with ESMTP id C3A3C80 for ; Mon, 9 Jan 2017 01:25:36 -0500 (EST) Received: from sendprodmail04.cc.columbia.edu (sendprodmail04.cc.columbia.edu [128.59.72.16]) by hazelnut (Postfix) with ESMTP id A9EE48C for ; Mon, 9 Jan 2017 01:25:36 -0500 (EST) Received: from mail-qt0-f197.google.com (mail-qt0-f197.google.com [209.85.216.197]) by sendprodmail04.cc.columbia.edu (8.14.4/8.14.4) with ESMTP id v096Paqj004417 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 9 Jan 2017 01:25:36 -0500 Received: by mail-qt0-f197.google.com with SMTP id k15so94303046qtg.5 for ; Sun, 08 Jan 2017 22:25:36 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=EXkdqT02L612bD1yhiZxbBAqMRUiu9hyGH2Enj2gjwg=; b=VEsduDoXGfvu3+KEDnT4oe4RCJ90Aj5DyFEdVPyEU8nQVPXKUSxmneQX6wUYCK/E38 l9k1qWq4pXfeHac1Qf1hmWN6qelrjSv/3mmqn9tMcPlovqB954BPOF3hjAoYN0iKOTRt N/fq/PrtfGD3cQSGHdWx4oVTTzDZKS1g7+C2ofRoMvuT1/Ni2mcNRlFWStoJ43u0gsk8 TrdCjg3WYdZKZpBduCETt1iZNQMsiz8+ceYVfaPPtbZ+H8Ylk0w8RbUQKUxXE5n8WZLP hgHxb9iVLbRDpJBnQt+8kX7zOQjEEcnT+ShXsXX9kMCp/fTSTzwK9Od+/SkytomqklBo k9aQ== X-Gm-Message-State: AIkVDXIWwJz1agCQljUZIYt/HbsHFQv1io3IMfbok6TcIuHkAFRZDRm2rHGk/awZRzA/OVJwOwTSwS+T5Qf7SRyy6ZLGHhChfW6IN3sUAMdMY91BvRXdVNpsbGvW6ZIA9ZQ0rfLqHWtCln8= X-Received: by 10.200.38.177 with SMTP id 46mr79743147qto.107.1483943136198; Sun, 08 Jan 2017 22:25:36 -0800 (PST) X-Received: by 10.200.38.177 with SMTP id 46mr79743129qto.107.1483943136061; Sun, 08 Jan 2017 22:25:36 -0800 (PST) Received: from jintack.cs.columbia.edu ([2001:18d8:ffff:16:21a:4aff:feaa:f900]) by smtp.gmail.com with ESMTPSA id h3sm8623257qtc.6.2017.01.08.22.25.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 08 Jan 2017 22:25:35 -0800 (PST) From: Jintack Lim To: christoffer.dall@linaro.org, marc.zyngier@arm.com, pbonzini@redhat.com, rkrcmar@redhat.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com, vladimir.murzin@arm.com, suzuki.poulose@arm.com, mark.rutland@arm.com, james.morse@arm.com, lorenzo.pieralisi@arm.com, kevin.brodsky@arm.com, wcohen@redhat.com, shankerd@codeaurora.org, geoff@infradead.org, andre.przywara@arm.com, eric.auger@redhat.com, anna-maria@linutronix.de, shihwei@cs.columbia.edu, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: jintack@cs.columbia.edu Subject: [RFC 04/55] KVM: arm64: Allow userspace to set PSR_MODE_EL2x Date: Mon, 9 Jan 2017 01:24:00 -0500 Message-Id: <1483943091-1364-5-git-send-email-jintack@cs.columbia.edu> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1483943091-1364-1-git-send-email-jintack@cs.columbia.edu> References: <1483943091-1364-1-git-send-email-jintack@cs.columbia.edu> X-No-Spam-Score: Local X-Scanned-By: MIMEDefang 2.78 on 128.59.72.16 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Christoffer Dall We were not allowing userspace to set a more privileged mode for the VCPU than EL1, but now that we support nesting with a virtual EL2 mode, do allow this! Signed-off-by: Christoffer Dall Signed-off-by: Jintack Lim --- arch/arm64/kvm/guest.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 3f9e157..6b9f38a 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -117,6 +117,8 @@ static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) case PSR_MODE_EL0t: case PSR_MODE_EL1t: case PSR_MODE_EL1h: + case PSR_MODE_EL2h: + case PSR_MODE_EL2t: break; default: err = -EINVAL;