From: Borislav Petkov <bp@alien8.de>
To: Fenghua Yu <fenghua.yu@intel.com>
Cc: Jean-Philippe Brucker <jean-philippe@linaro.org>,
Tony Luck <tony.luck@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Ashok Raj <ashok.raj@intel.com>,
Ravi V Shankar <ravi.v.shankar@intel.com>,
Peter Zijlstra <peterz@infradead.org>, x86 <x86@kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Dave Hansen <dave.hansen@intel.com>,
iommu@lists.linux-foundation.org, Ingo Molnar <mingo@redhat.com>,
Jacob Jun Pan <jacob.jun.pan@intel.com>,
Andy Lutomirski <luto@kernel.org>, H Peter Anvin <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH v7 8/9] x86/cpufeatures: Mark ENQCMD as disabled when configured out
Date: Mon, 7 Sep 2020 12:29:35 +0200 [thread overview]
Message-ID: <20200907102935.GA16029@zn.tnic> (raw)
In-Reply-To: <1598540794-132666-9-git-send-email-fenghua.yu@intel.com>
On Thu, Aug 27, 2020 at 08:06:33AM -0700, Fenghua Yu wrote:
> Currently the ENQCMD feature cannot be used if CONFIG_INTEL_IOMMU_SVM
> is not set.
IOW,
"Currently, the ENQCMD feature depends on CONFIG_INTEL_IOMMU_SVM."
?
No need for a "cannot ... if not" formulation.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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iommu@lists.linux-foundation.org
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WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Fenghua Yu <fenghua.yu@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, H Peter Anvin <hpa@zytor.com>,
Andy Lutomirski <luto@kernel.org>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
Christoph Hellwig <hch@infradead.org>,
Peter Zijlstra <peterz@infradead.org>,
David Woodhouse <dwmw2@infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Tony Luck <tony.luck@intel.com>, Ashok Raj <ashok.raj@intel.com>,
Jacob Jun Pan <jacob.jun.pan@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Sohil Mehta <sohil.mehta@intel.com>,
Ravi V Shankar <ravi.v.shankar@intel.com>,
linux-kernel <linux-kernel@vger.kernel.org>, x86 <x86@kernel.org>,
iommu@lists.linux-foundation.org
Subject: Re: [PATCH v7 8/9] x86/cpufeatures: Mark ENQCMD as disabled when configured out
Date: Mon, 7 Sep 2020 12:29:35 +0200 [thread overview]
Message-ID: <20200907102935.GA16029@zn.tnic> (raw)
In-Reply-To: <1598540794-132666-9-git-send-email-fenghua.yu@intel.com>
On Thu, Aug 27, 2020 at 08:06:33AM -0700, Fenghua Yu wrote:
> Currently the ENQCMD feature cannot be used if CONFIG_INTEL_IOMMU_SVM
> is not set.
IOW,
"Currently, the ENQCMD feature depends on CONFIG_INTEL_IOMMU_SVM."
?
No need for a "cannot ... if not" formulation.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2020-09-07 10:29 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 15:06 [PATCH v7 0/9] x86: tag application address space for devices Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-08-27 15:06 ` [PATCH v7 1/9] iommu: Change type of pasid to u32 Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-09-04 10:46 ` Borislav Petkov
2020-09-04 10:46 ` Borislav Petkov
2020-09-04 16:06 ` Fenghua Yu
2020-09-04 16:06 ` Fenghua Yu
2020-09-04 19:45 ` Borislav Petkov
2020-09-04 19:45 ` Borislav Petkov
2020-09-04 20:47 ` Fenghua Yu
2020-09-04 20:47 ` Fenghua Yu
2020-09-04 20:53 ` Borislav Petkov
2020-09-04 20:53 ` Borislav Petkov
2020-08-27 15:06 ` [PATCH v7 2/9] iommu/vt-d: Change flags type to unsigned int in binding mm Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-08-27 15:06 ` [PATCH v7 3/9] docs: x86: Add documentation for SVA (Shared Virtual Addressing) Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-09-05 15:14 ` Borislav Petkov
2020-09-05 15:14 ` Borislav Petkov
2020-09-05 17:54 ` Randy Dunlap
2020-09-05 17:54 ` Randy Dunlap
2020-09-15 2:02 ` Fenghua Yu
2020-09-15 2:02 ` Fenghua Yu
2020-08-27 15:06 ` [PATCH v7 4/9] x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-08-27 15:06 ` [PATCH v7 5/9] x86/fpu/xstate: Add supervisor PASID state for ENQCMD feature Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-08-27 15:06 ` [PATCH v7 6/9] x86/msr-index: Define IA32_PASID MSR Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-08-27 15:06 ` [PATCH v7 7/9] mm: Define pasid in mm Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-08-27 15:06 ` [PATCH v7 8/9] x86/cpufeatures: Mark ENQCMD as disabled when configured out Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-09-07 10:29 ` Borislav Petkov [this message]
2020-09-07 10:29 ` Borislav Petkov
2020-08-27 15:06 ` [PATCH v7 9/9] x86/mmu: Allocate/free PASID Fenghua Yu
2020-08-27 15:06 ` Fenghua Yu
2020-09-03 22:34 ` Fenghua Yu
2020-09-03 22:34 ` Fenghua Yu
2020-09-07 11:18 ` Borislav Petkov
2020-09-07 11:18 ` Borislav Petkov
2020-09-14 18:37 ` Fenghua Yu
2020-09-14 18:37 ` Fenghua Yu
2020-09-14 19:25 ` Borislav Petkov
2020-09-14 19:25 ` Borislav Petkov
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