From patchwork Thu Jan 10 12:45:06 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 210994 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 586A12C034C for ; Thu, 10 Jan 2013 23:45:41 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754608Ab3AJMph (ORCPT ); Thu, 10 Jan 2013 07:45:37 -0500 Received: from cantor2.suse.de ([195.135.220.15]:38945 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753514Ab3AJMpR (ORCPT ); Thu, 10 Jan 2013 07:45:17 -0500 Received: from relay1.suse.de (unknown [195.135.220.254]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 92FDEA4EB7; Thu, 10 Jan 2013 13:45:16 +0100 (CET) From: Alexander Graf To: kvm-ppc@vger.kernel.org Cc: KVM list Subject: [PATCH 2/8] KVM: PPC: Only WARN on invalid emulation Date: Thu, 10 Jan 2013 13:45:06 +0100 Message-Id: <1357821912-24922-3-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1357821912-24922-1-git-send-email-agraf@suse.de> References: <1357821912-24922-1-git-send-email-agraf@suse.de> Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org When we hit an emulation result that we didn't expect, that is an error, but it's nothing that warrants a BUG(), because it can be guest triggered. So instead, let's only WARN() the user that this happened. Signed-off-by: Alexander Graf --- arch/powerpc/kvm/powerpc.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index be83fca..e2225e5 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -237,7 +237,8 @@ int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu) r = RESUME_HOST; break; default: - BUG(); + WARN_ON(1); + r = RESUME_GUEST; } return r;