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From: Qian Cai <cai@lca.pw>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: kevin.tian@intel.com, ashok.raj@intel.com,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	jacob.jun.pan@intel.com, David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH v2 1/1] iommu/vt-d: Add Kconfig option to enable/disable scalable mode
Date: Sun, 10 Nov 2019 21:58:56 -0500
Message-ID: <472617D4-1652-45FB-90A4-0D45766DB78B@lca.pw> (raw)
In-Reply-To: <20191109034039.27964-1-baolu.lu@linux.intel.com>



> On Nov 8, 2019, at 10:43 PM, Lu Baolu <baolu.lu@linux.intel.com> wrote:
> 
> +config INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON
> +    prompt "Enable Intel IOMMU scalable mode by default"
> +    depends on INTEL_IOMMU
> +    help
> +      Selecting this option will enable the scalable mode if
> +      hardware presents the capability. If this option is not
> +      selected, scalable mode support could also be enabled
> +      by passing intel_iommu=sm_on to the kernel.
> +

Does it also make sense to mention which hardware presents this capability or how to check it?
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  parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-09  3:40 Lu Baolu
2019-11-09  3:59 ` Qian Cai
2019-11-11  1:27   ` Lu Baolu
2019-11-11  2:00     ` Qian Cai
2019-11-11  2:17       ` Lu Baolu
2019-11-11  2:58 ` Qian Cai [this message]
2019-11-11  5:20   ` Lu Baolu
2019-11-11 14:05     ` Qian Cai
2019-11-12  5:48       ` Lu Baolu

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