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Subject: Re: [PATCH v2 5/5] x86/pti: Do not enable PTI on fixed Intel
 processors
To: David Woodhouse <dwmw@amazon.co.uk>, arjan@linux.intel.com,
 tglx@linutronix.de, karahmed@amazon.de, x86@kernel.org,
 linux-kernel@vger.kernel.org, tim.c.chen@linux.intel.com, bp@alien8.de,
 peterz@infradead.org, pbonzini@redhat.com, ak@linux.intel.com,
 torvalds@linux-foundation.org, gregkh@linux-foundation.org,
 thomas.lendacky@amd.com
References: <1516726375-25168-1-git-send-email-dwmw@amazon.co.uk>
 <1516726375-25168-6-git-send-email-dwmw@amazon.co.uk>
From: Dave Hansen <dave.hansen@intel.com>
Message-ID: <736fa9c9-d651-b6ef-802c-d02a27c28ab9@intel.com>
Date: Tue, 23 Jan 2018 10:41:10 -0800
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On 01/23/2018 08:52 AM, David Woodhouse wrote:
> When they advertise the IA32_ARCH_CAPABILITIES MSR and it has the RDCL_NO
> bit set, they don't need KPTI either.

Also, I hate to ask...  Have you tested this patch?