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Date: Mon, 22 Aug 2022 16:25:36 -0700
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Subject: Re: [PATCH 2/2] iommu: Use the user PGD for SVA if PTI is enabled
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To: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>, iommu@lists.linux.dev,
 x86@kernel.org, Joerg Roedel <joro@8bytes.org>,
 Lu Baolu <baolu.lu@linux.intel.com>, Raj Ashok <ashok.raj@intel.com>,
 Thomas Gleixner <tglx@linutronix.de>, Borislav Petkov <bp@alien8.de>,
 Ingo Molnar <mingo@redhat.com>, "Tian, Kevin" <kevin.tian@intel.com>,
 Yi Liu <yi.l.liu@intel.com>
References: <20220822201213.352289-1-jacob.jun.pan@linux.intel.com>
 <20220822201213.352289-3-jacob.jun.pan@linux.intel.com>
 <09bccb93-2c0e-4962-0c46-c84c22fa140d@intel.com>
 <20220822162454.490ad1f2@jacob-builder>
From: Dave Hansen <dave.hansen@intel.com>
In-Reply-To: <20220822162454.490ad1f2@jacob-builder>
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On 8/22/22 16:24, Jacob Pan wrote:
> Sounds good. I thought about a helper also, thinking there are so many other
> cpu_has(X86_FEATURE_PTI) checks already :)

Yes, but almost all of those are in PTI-#ifdef'd code already.