From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Subject: Re: [PATCH v3 3/3] KVM: PPC: epapr: install ev_idle hcall for e500
 guest
Date: Fri, 10 Feb 2012 12:41:46 -0600
Message-ID: <4F3564EA.9060005@freescale.com>
References: <1328868141-17364-1-git-send-email-yu.liu@freescale.com> <1328868141-17364-2-git-send-email-yu.liu@freescale.com> <1328868141-17364-3-git-send-email-yu.liu@freescale.com>
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Cc: <agraf@suse.de>, <kvm-ppc@vger.kernel.org>, <kvm@vger.kernel.org>,
	<linuxppc-dev@ozlabs.org>, <B07421@freescale.com>
To: Liu Yu <yu.liu@freescale.com>
Return-path: <kvm-ppc-owner@vger.kernel.org>
In-Reply-To: <1328868141-17364-3-git-send-email-yu.liu@freescale.com>
Sender: kvm-ppc-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

On 02/10/2012 04:02 AM, Liu Yu wrote:
> +_GLOBAL(epapr_ev_idle)
> +epapr_ev_idle:
> +#ifdef CONFIG_E500
> +	rlwinm	r3,r1,0,0,31-THREAD_SHIFT	/* current thread_info */
> +	lwz	r4,TI_LOCAL_FLAGS(r3)	/* set napping bit */
> +	ori	r4,r4,_TLF_NAPPING	/* so when we take an exception */
> +	stw	r4,TI_LOCAL_FLAGS(r3)	/* it will return to our caller */
> +#endif
> +	wrteei	1

On what hardware would you not need to use _TLF_NAPPING?

-Scott