linux-kernel - Re: [PATCH][RFC] x86, hotplug: Use zero page for monitor when resuming from hibernation

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Message-ID: <20160607091349.GA1170@pd.tnic>
Date:	Tue, 7 Jun 2016 11:13:49 +0200
From:	Borislav Petkov <bp@...e.de>
To:	Chen Yu <yu.c.chen@...el.com>
Cc:	Pavel Machek <pavel@....cz>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H . Peter Anvin" <hpa@...or.com>, linux-pm@...r.kernel.org,
	"Rafael J . Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Zhu Guihua <zhugh.fnst@...fujitsu.com>,
	Juergen Gross <jgross@...e.com>,
	"Zheng, Lv" <lv.zheng@...el.com>, Brian Gerst <brgerst@...il.com>
Subject: Re: [PATCH][RFC] x86, hotplug: Use zero page for monitor when
 resuming from hibernation

On Tue, Jun 07, 2016 at 04:44:24PM +0800, Chen Yu wrote:
> I'm doing more test to verify this.

I think it would be better if you looked into doing HLT as Brian
suggested, instead of touching any memory during s/r.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--