From: Thomas Gleixner <tglx@linutronix.de>
To: Kyle Huey <me@kylehuey.com>
Cc: "Robert O'Callahan" <robert@ocallahan.org>,
"Andy Lutomirski" <luto@kernel.org>,
"Ingo Molnar" <mingo@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, "Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Jeff Dike" <jdike@addtoit.com>,
"Richard Weinberger" <richard@nod.at>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Shuah Khan" <shuah@kernel.org>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"Borislav Petkov" <bp@suse.de>,
"Peter Zijlstra" <peterz@infradead.org>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
"Len Brown" <len.brown@intel.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
"Dmitry Safonov" <dsafonov@virtuozzo.com>,
"David Matlack" <dmatlack@google.com>,
"Nadav Amit" <nadav.amit@gmail.com>,
"Andi Kleen" <andi@firstfloor.org>,
linux-kernel@vger.kernel.org,
user-mode-linux-devel@lists.sourceforge.net,
user-mode-linux-user@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kselftest@vger.kernel.org,
kvm@vger.kernel.org
Subject: Re: [PATCH v13 6/8] x86/arch_prctl: Add ARCH_[GET|SET]_CPUID
Date: Mon, 28 Nov 2016 15:06:18 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.20.1611281437130.3512@nanos> (raw)
In-Reply-To: <20161128030521.4423-7-khuey@kylehuey.com>
On Sun, 27 Nov 2016, Kyle Huey wrote:
> +DEFINE_PER_CPU(u64, msr_misc_features_shadow);
> +
> +static void set_cpuid_faulting(bool on)
> +{
> + u64 msrval;
> +
> + DEBUG_LOCKS_WARN_ON(!irqs_disabled());
The arch_prctl code path does not have interrupts disabled and there is no
reason why it should have.
Thanks,
tglx
next prev parent reply other threads:[~2016-11-28 14:11 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-28 3:05 [PATCH v13 0/8] x86/arch_prctl Add ARCH_[GET|SET]_CPUID for controlling the CPUID instruction Kyle Huey
2016-11-28 3:05 ` [PATCH v13 1/8] x86/arch_prctl/64: Use SYSCALL_DEFINE2 to define sys_arch_prctl Kyle Huey
2016-11-28 3:05 ` [PATCH v13 2/8] x86/arch_prctl/64: Rename do_arch_prctl to do_arch_prctl_64 Kyle Huey
2016-11-28 3:05 ` [PATCH v13 3/8] x86/arch_prctl: Add do_arch_prctl_common Kyle Huey
2016-11-28 3:05 ` [PATCH v13 4/8] x86/syscalls/32: Wire up arch_prctl on x86-32 Kyle Huey
2016-11-28 3:05 ` [PATCH v13 5/8] x86/cpufeature: Detect CPUID faulting support Kyle Huey
2016-11-28 3:05 ` [PATCH v13 6/8] x86/arch_prctl: Add ARCH_[GET|SET]_CPUID Kyle Huey
2016-11-28 14:06 ` Thomas Gleixner [this message]
2016-11-28 16:13 ` Kyle Huey
2016-11-28 3:05 ` [PATCH v13 7/8] x86/arch_prctl: Selftest for ARCH_[GET|SET]_CPUID Kyle Huey
2016-11-28 3:05 ` [PATCH v13 8/8] KVM: x86: virtualize cpuid faulting Kyle Huey
2016-12-02 10:29 ` [PATCH v13 0/8] x86/arch_prctl Add ARCH_[GET|SET]_CPUID for controlling the CPUID instruction Ingo Molnar
2016-12-03 15:37 ` Kyle Huey
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