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From: Andy Lutomirski <luto@kernel.org>
To: "Bae, Chang Seok" <chang.seok.bae@intel.com>
Cc: Andrew Lutomirski <luto@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>, Andi Kleen <ak@linux.intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"Metzger, Markus T" <markus.t.metzger@intel.com>,
"Ravi V. Shankar" <ravi.v.shankar@intel.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 4/7] x86/fsgsbase/64: Factor out load FS/GS segments from __switch_to
Date: Mon, 18 Jun 2018 15:06:33 -0700 [thread overview]
Message-ID: <CALCETrUeEAGcsg84oxEY99bNqd3ewc27nP8gHFwMf4GQhPtcDQ@mail.gmail.com> (raw)
In-Reply-To: <1528391168-22224-5-git-send-email-chang.seok.bae@intel.com>
On Thu, Jun 7, 2018 at 10:06 AM Chang S. Bae <chang.seok.bae@intel.com> wrote:
>
> Instead of open code, load_fsgs() will cleanup __switch_to
> and symmetric with FS/GS segment save. When FSGSBASE
> enabled, X86_FEATURE_FSGSBASE check will be incorporated.
The code is:
Reviewed-by: Andy Lutomirski <luto@kernel.org>
The changelog could be cleaned up a bit. Maybe:
Instead of open coding the calls to load_seg_legacy(), add a
load_fsgs() helper to handle fs and gs. When FSGSBASE is enabled,
load_fsgs() will be updated.
next prev parent reply other threads:[~2018-06-18 22:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-07 17:06 [PATCH v3 0/7] x86: infrastructure to enable FSGSBASE Chang S. Bae
2018-06-07 17:06 ` [PATCH v3 1/7] x86/fsgsbase/64: Introduce FS/GS base helper functions Chang S. Bae
2018-06-07 17:06 ` [PATCH v3 2/7] x86/fsgsbase/64: Make ptrace read FS/GS base accurately Chang S. Bae
2018-06-07 17:06 ` [PATCH v3 3/7] x86/fsgsbase/64: Use FS/GS base helpers in core dump Chang S. Bae
2018-06-07 17:06 ` [PATCH v3 4/7] x86/fsgsbase/64: Factor out load FS/GS segments from __switch_to Chang S. Bae
2018-06-18 22:06 ` Andy Lutomirski [this message]
2018-06-07 17:06 ` [PATCH v3 5/7] x86/segments/64: Rename PER_CPU segment to CPU_NUMBER Chang S. Bae
2018-06-07 17:06 ` [PATCH v3 6/7] x86/vdso: Introduce CPU number helper functions Chang S. Bae
2018-06-18 22:07 ` Andy Lutomirski
2018-06-07 17:06 ` [PATCH v3 7/7] x86/vdso: Move out the CPU number store Chang S. Bae
2018-06-18 22:08 ` Andy Lutomirski
2018-06-18 23:12 ` Bae, Chang Seok
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