From patchwork Wed May 3 10:46:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 9709341 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 14F0460351 for ; Wed, 3 May 2017 10:52:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 06D592015F for ; Wed, 3 May 2017 10:52:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EFD0D285E8; Wed, 3 May 2017 10:52:11 +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 9220B2015F for ; Wed, 3 May 2017 10:52:11 +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=PlkXVNQgdQ13Fn32ZrUMOQSOplHj/9EF/9qknbHAocM=; b=kkEv+hor02/kI2LZOD6kW3PTH6 ZeIjCVAi0HAm/7Rcty42Cdiy+HjS65QacYmg/oufl/h51ldsOQVmjFXcSRf32sHWFUPrsX6uCTGCH qZF3e/DQNTft7OmFxbggQfEGortWQ4GSDQPASdEXRG9dfihga8p454L0P8BF1LrC5PLmzogQ2AnhA DRmjZwlukQ2HyyBSXVG8Kj5/HZ2R83ywM9pT9ZqxkucL6dB54N7sSdKubkkvVff+0aZs2MPfJcNJE nIgfE6IXyngmVoOSNs6kUxWuOKQp0EwJGoJsFE1KewqXuVMEk2GNMpKw6nJyP735CEtQyeTARv6u8 Zy3e4u0A==; 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 1d5rtB-0006yK-IA; Wed, 03 May 2017 10:52:09 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1d5roJ-0007oU-4u for linux-arm-kernel@lists.infradead.org; Wed, 03 May 2017 10:47:15 +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 E544716BA; Wed, 3 May 2017 03:47:02 -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 9F44D3F4FF; Wed, 3 May 2017 03:47:01 -0700 (PDT) From: Marc Zyngier To: Christoffer Dall Subject: [PATCH 31/31] KVM: arm64: vgic-v3: Log which GICv3 system registers are trapped Date: Wed, 3 May 2017 11:46:06 +0100 Message-Id: <20170503104606.19342-32-marc.zyngier@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170503104606.19342-1-marc.zyngier@arm.com> References: <20170503104606.19342-1-marc.zyngier@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170503_034707_550334_03923532 X-CRM114-Status: UNSURE ( 7.08 ) 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 , 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 Reviewed-by: Eric Auger --- 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 717219ab58a2..9110657b502c 100644 --- a/virt/kvm/arm/vgic/vgic-v3.c +++ b/virt/kvm/arm/vgic/vgic-v3.c @@ -407,7 +407,10 @@ 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); }