From: Scott Wood <scottwood@freescale.com>
To: Liu Yu <yu.liu@freescale.com>
Cc: linuxppc-dev@ozlabs.org, B07421@freescale.com, agraf@suse.de,
kvm-ppc@vger.kernel.org, kvm@vger.kernel.org
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 [thread overview]
Message-ID: <4F3564EA.9060005@freescale.com> (raw)
In-Reply-To: <1328868141-17364-3-git-send-email-yu.liu@freescale.com>
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
next prev parent reply other threads:[~2012-02-10 18:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-10 10:02 [PATCH v3 1/3] KVM: PPC: epapr: Factor out the epapr init Liu Yu
2012-02-10 10:02 ` [PATCH v3 2/3] KVM: PPC: epapr: Add idle hcall support for host Liu Yu
2012-02-10 10:02 ` [PATCH v3 3/3] KVM: PPC: epapr: install ev_idle hcall for e500 guest Liu Yu
2012-02-10 18:41 ` Scott Wood [this message]
2012-02-10 18:39 ` [PATCH v3 1/3] KVM: PPC: epapr: Factor out the epapr init Scott Wood
2012-02-13 5:47 ` Liu Yu-B13201
2012-02-13 17:15 ` Scott Wood
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