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From: Peter Zijlstra <peterz@infradead.org>
To: Fenghua Yu <fenghua.yu@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Dave Hansen <dave.hansen@intel.com>,
	Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@redhat.com>,
	H Peter Anvin <hpa@zytor.com>, Ashok Raj <ashok.raj@intel.com>,
	Michael Chan <michael.chan@broadcom.com>,
	Ravi V Shankar <ravi.v.shankar@intel.com>,
	Ricardo Neri <ricardo.neri@intel.com>,
	linux-kernel <linux-kernel@vger.kernel.org>, x86 <x86@kernel.org>
Subject: Re: [PATCH v3 08/10] x86/setcpuid: Add kernel option setcpuid
Date: Tue, 12 Feb 2019 14:37:50 +0100	[thread overview]
Message-ID: <20190212133750.GJ32494@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190211191643.GB103371@romley-ivt3.sc.intel.com>

On Mon, Feb 11, 2019 at 11:16:43AM -0800, Fenghua Yu wrote:
> 4. The feature can be disabled by kernel option
> "clearcpuid=split_lock_detection" during early boot time.

IFF clearcpuid lives, it should also employ CPUID faulting and clear it
for userspace too.

  reply	other threads:[~2019-02-12 13:38 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-02  5:14 [PATCH v3 00/10] x86/split_lock: Enable #AC exception for split locked accesses Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 01/10] x86/common: Align cpu_caps_cleared and cpu_caps_set to unsigned long Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 02/10] drivers/net/b44: Align pwol_mask to unsigned long for better performance Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 03/10] wlcore: Align reg_ch_conf_pending and tmp_ch_bitmap " Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 04/10] x86/split_lock: Align x86_capability to unsigned long to avoid split locked access Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 05/10] x86/clearcpuid: Support multiple clearcpuid options Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 06/10] x86/clearcpuid: Support feature flag string in kernel option clearcpuid Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 07/10] Change document for " Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 08/10] x86/setcpuid: Add kernel option setcpuid Fenghua Yu
2019-02-04 17:49   ` Thomas Gleixner
2019-02-04 19:05     ` Dave Hansen
2019-02-04 19:57       ` Borislav Petkov
2019-02-04 20:46         ` Dave Hansen
2019-02-04 21:40           ` Borislav Petkov
2019-02-04 22:14             ` Fenghua Yu
2019-02-05  6:10               ` Borislav Petkov
2019-02-04 23:24             ` Dave Hansen
2019-02-05  6:18               ` Borislav Petkov
2019-02-05 16:46                 ` Dave Hansen
2019-02-05 17:09                   ` Peter Zijlstra
2019-02-05  8:57               ` Peter Zijlstra
2019-02-05 13:15                 ` Peter Zijlstra
2019-02-05  8:48           ` Peter Zijlstra
2019-02-05 15:19             ` Dave Hansen
2019-02-05 15:43               ` Borislav Petkov
2019-02-05 18:26                 ` Fenghua Yu
2019-02-05 17:04               ` Peter Zijlstra
2019-02-10 19:20                 ` Thomas Gleixner
2019-02-11 19:16                   ` Fenghua Yu
2019-02-12 13:37                     ` Peter Zijlstra [this message]
2019-02-12 13:51                       ` Thomas Gleixner
2019-02-12 16:48                         ` Peter Zijlstra
2019-02-12 16:50                           ` Dave Hansen
2019-02-12 17:52                           ` Yu, Fenghua
2019-02-04 21:09       ` Fenghua Yu
2019-02-05  8:51         ` Peter Zijlstra
2019-02-05 15:21           ` Dave Hansen
2019-02-05 15:34             ` Peter Zijlstra
2019-02-02  5:14 ` [PATCH v3 09/10] x86/split_lock: Define #AC for split lock feature Fenghua Yu
2019-02-04 18:41   ` Dave Hansen
2019-02-04 18:45     ` Fenghua Yu
2019-02-04 19:00       ` Dave Hansen
2019-02-04 19:03         ` Fenghua Yu
2019-02-02  5:14 ` [PATCH v3 10/10] x86/split_lock: Handle #AC exception for split lock Fenghua Yu
2019-02-04 11:00   ` kbuild test robot
2019-02-04 14:43   ` kbuild test robot
2019-02-11 10:53   ` Ingo Molnar
2019-02-11 18:10     ` Fenghua Yu
2019-02-13  8:14       ` Ingo Molnar
2019-02-13 14:37         ` Yu, Fenghua

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