From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from co1outboundpool.messaging.microsoft.com (co1ehsobe005.messaging.microsoft.com [216.32.180.188]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (not verified)) by ozlabs.org (Postfix) with ESMTPS id D03B92C012A for ; Fri, 10 May 2013 13:09:57 +1000 (EST) From: Scott Wood To: Alexander Graf , Benjamin Herrenschmidt Subject: [PATCH v2 2/4] kvm/ppc/booke64: Fix lazy ee handling in kvmppc_handle_exit() Date: Thu, 9 May 2013 22:09:42 -0500 Message-ID: <1368155384-11035-3-git-send-email-scottwood@freescale.com> In-Reply-To: <1368155384-11035-1-git-send-email-scottwood@freescale.com> References: <1368155384-11035-1-git-send-email-scottwood@freescale.com> MIME-Version: 1.0 Content-Type: text/plain Cc: Scott Wood , linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, kvm-ppc@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , EE is hard-disabled on entry to kvmppc_handle_exit(), so call hard_irq_disable() so that PACA_IRQ_HARD_DIS is set, and soft_enabled is unset. Without this, we get warnings such as arch/powerpc/kernel/time.c:300, and sometimes host kernel hangs. Signed-off-by: Scott Wood --- arch/powerpc/kvm/booke.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 1020119..705fc5c 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -833,6 +833,11 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, int r = RESUME_HOST; int s; +#ifdef CONFIG_PPC64 + WARN_ON(local_paca->irq_happened != 0); +#endif + hard_irq_disable(); + /* update before a new last_exit_type is rewritten */ kvmppc_update_timing_stats(vcpu); -- 1.7.10.4