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Date:   Mon, 15 Apr 2019 18:07:55 -0400
From:   Sasha Levin <>
To:     Pavel Machek <>
Cc:     Greg Kroah-Hartman <>,,,
        Jarkko Nikula <>,
        Andy Lutomirski <>,
        "Rafael J. Wysocki" <>,
        Thomas Gleixner <>,
        Borislav Petkov <>,
        Josh Poimboeuf <>,
        Linus Torvalds <>,
        Peter Zijlstra <>,
        "Rafael J. Wysocki" <>,
        Zhang Rui <>, Ingo Molnar <>
Subject: Re: [PATCH 4.14 04/69] x86/power/32: Move SYSENTER MSR restoration
 to fix_processor_context()

On Mon, Apr 15, 2019 at 10:07:47PM +0200, Pavel Machek wrote:
>On Mon 2019-04-15 20:58:22, Greg Kroah-Hartman wrote:
>> [ Upstream commit 896c80bef4d3b357814a476663158aaf669d0fb3 ]
>> x86_64 restores system call MSRs in fix_processor_context(), and
>> x86_32 restored them along with segment registers.  The 64-bit
>> variant makes more sense, so move the 32-bit code to match the
>> 64-bit code.
>> No side effects are expected to runtime behavior.
>Again, this is cleanup, not a bugfix.

Indeed, these two are just preparatory patches rather than fixes.
Patches that come later need these.


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