linux-kernel - Re: [PATCH v2] x86: add workaround monitor bug

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Message-ID: <20160718121145.493ecb2e@jacob-builder>
Date:	Mon, 18 Jul 2016 12:11:45 -0700
From:	Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:	Brian Gerst <brgerst@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, X86 Kernel <x86@...nel.org>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Len Brown <lenb@...nel.org>, jacob.jun.pan@...ux.intel.com
Subject: Re: [PATCH v2] x86: add workaround monitor bug

On Mon, 18 Jul 2016 14:49:56 -0400
Brian Gerst <brgerst@...il.com> wrote:

> It would be simpler to just force clear X86_FEATURE_MWAIT.

Then we cannot use intel_idle driver. In addition, ACPI idle driver
needs BIOS support which may or may not be there for all platforms.

Thanks,

Jacob