From patchwork Mon Aug 10 13:26:07 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhichao Huang X-Patchwork-Id: 6984301 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 618949F344 for ; Mon, 10 Aug 2015 13:29:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 98DAC205FF for ; Mon, 10 Aug 2015 13:29:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C11AA205B7 for ; Mon, 10 Aug 2015 13:29:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753343AbbHJN3Y (ORCPT ); Mon, 10 Aug 2015 09:29:24 -0400 Received: from mail-pd0-f179.google.com ([209.85.192.179]:36828 "EHLO mail-pd0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752403AbbHJN3Y (ORCPT ); Mon, 10 Aug 2015 09:29:24 -0400 Received: by pdco4 with SMTP id o4so71717566pdc.3 for ; Mon, 10 Aug 2015 06:29:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=MkiVYwHFvAWDT1g3Qox9RhwqTrSCBtD0f+wCaZmzE5Y=; b=bv7aLUI/FW96TOzaWN/ypvlfUURNwJeAdap27so1KYzvHf3CE8fjG6W/piXQ3oFq6h G27X8oXYKAabPaBcsf8wqJeRf/xMTDr5+MtN3EMIU6HDch4RFHvcK1emKIjO8ggXPAEJ h2efk4hZKaiadLf+n26mAO05nACkkl2BKbkXx82snJX1ieoUKxCq7rvWjEUTGpi1oF1K ogZRYpF61gY/VGVSr+mui0/ZB3T3N2PH5NWNwNWoipvRCzj3/jPATAE6kmcHyZ/AHSCW n5Bu3S6ypbPdYw5xN8Y1GLVuYUEYEVFd1uiZ3lTCi43gNkrhtAoS8RGZJ0mjah1wL15r vnQQ== X-Gm-Message-State: ALoCoQkOR96Lv5bG3hD25f2WwWVGHEox+r8kytCz+WTUYRWd35S55uGE9TdKtQxJlPN+/q0hDiZ3 X-Received: by 10.70.135.67 with SMTP id pq3mr44919574pdb.8.1439213363579; Mon, 10 Aug 2015 06:29:23 -0700 (PDT) Received: from localhost ([199.168.112.128]) by smtp.gmail.com with ESMTPSA id ea4sm19971868pbc.48.2015.08.10.06.29.21 (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 10 Aug 2015 06:29:22 -0700 (PDT) From: Zhichao Huang To: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, christoffer.dall@linaro.org, marc.zyngier@arm.com, alex.bennee@linaro.org, will.deacon@arm.com Cc: huangzhichao@huawei.com, Zhichao Huang Subject: [PATCH v4 15/15] KVM: arm: enable trapping of all debug registers Date: Mon, 10 Aug 2015 21:26:07 +0800 Message-Id: <1439213167-8988-16-git-send-email-zhichao.huang@linaro.org> X-Mailer: git-send-email 1.9.5.msysgit.1 In-Reply-To: <1439213167-8988-1-git-send-email-zhichao.huang@linaro.org> References: <1439213167-8988-1-git-send-email-zhichao.huang@linaro.org> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Enable trapping of the debug registers unconditionally, allowing guests to use the debug infrastructure. Signed-off-by: Zhichao Huang Reviewed-by: Christoffer Dall --- arch/arm/kvm/interrupts_head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kvm/interrupts_head.S b/arch/arm/kvm/interrupts_head.S index 7ad0adf..494991d 100644 --- a/arch/arm/kvm/interrupts_head.S +++ b/arch/arm/kvm/interrupts_head.S @@ -792,7 +792,7 @@ ARM_BE8(rev r6, r6 ) * (hardware reset value is 0) */ .macro set_hdcr operation mrc p15, 4, r2, c1, c1, 1 - ldr r3, =(HDCR_TPM|HDCR_TPMCR) + ldr r3, =(HDCR_TPM|HDCR_TPMCR|HDCR_TDRA|HDCR_TDOSA|HDCR_TDA) .if \operation == vmentry orr r2, r2, r3 @ Trap some perfmon accesses .else