From patchwork Thu Jun 1 10:21:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 9759241 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 DBC566038E for ; Thu, 1 Jun 2017 10:26:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C6BE427F88 for ; Thu, 1 Jun 2017 10:26:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BB692284BD; Thu, 1 Jun 2017 10:26:52 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 501E227F88 for ; Thu, 1 Jun 2017 10:26:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=I/kg1W0rpL13uTRvd2HeBEP9hG076PEC1DEdaVvnArk=; b=VIbtCZBiybTiA4Mnym3WXRP4hy GCeWsma+hzFOPkqPO1g1yILaspqSykVkC/FfyQe9IwxQ/woGZKU1McYwxHaflx9AlnOb9o/WAHfX0 wjX1Gj0YS6K7PQQtY6OiOP69KYw466bO5rJRQxy9/8ruizhT2Xk8krPLRvn3GGRbYfZ57M6jKOBpr xtf1+F3PN4ay+M554n/pVyemkKzkbThx9xDRU5wtHKePgnwhwnk+CCgkQH8biiStb+d7CjOoq7qwH 4Ky8mSM0OXzFK63zebl/Sik2LNyLEIBZn8ZgaSgDnxbgwyRwoEjhEmT2szCwFIjnHYvSFETG9wVWB U1VfgOGA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dGNJa-00033K-Kh; Thu, 01 Jun 2017 10:26:50 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dGNFI-0003zo-42 for linux-arm-kernel@lists.infradead.org; Thu, 01 Jun 2017 10:22:37 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 37C83164F; Thu, 1 Jun 2017 03:22:12 -0700 (PDT) Received: from approximate.cambridge.arm.com (approximate.cambridge.arm.com [10.1.207.16]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A9B533F578; Thu, 1 Jun 2017 03:22:10 -0700 (PDT) From: Marc Zyngier To: Christoffer Dall Subject: [PATCH v2 25/25] KVM: arm64: vgic-v3: Log which GICv3 system registers are trapped Date: Thu, 1 Jun 2017 11:21:17 +0100 Message-Id: <20170601102117.17750-26-marc.zyngier@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170601102117.17750-1-marc.zyngier@arm.com> References: <20170601102117.17750-1-marc.zyngier@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170601_032225_158794_9BBE1335 X-CRM114-Status: UNSURE ( 7.48 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , kvm@vger.kernel.org, David Daney , Catalin Marinas , Robert Richter , Eric Auger , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP In order to facilitate debug, let's log which class of GICv3 system registers are trapped. Signed-off-by: Marc Zyngier Acked-by: Christoffer Dall --- virt/kvm/arm/vgic/vgic-v3.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c index 636f1258d217..e0b530f4b1e6 100644 --- a/virt/kvm/arm/vgic/vgic-v3.c +++ b/virt/kvm/arm/vgic/vgic-v3.c @@ -499,7 +499,10 @@ int vgic_v3_probe(const struct gic_kvm_info *info) #endif if (group0_trap || group1_trap || common_trap) { - kvm_info("GICv3 sysreg trapping enabled (reduced performance)\n"); + kvm_info("GICv3 sysreg trapping enabled ([%s%s%s], reduced performance)\n", + group0_trap ? "G0" : "", + group1_trap ? "G1" : "", + common_trap ? "C" : ""); static_branch_enable(&vgic_v3_cpuif_trap); }