From: Thomas Gleixner <tglx@linutronix.de>
To: Andy Lutomirski <luto@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Dave Hansen <dave.hansen@intel.com>,
Borislav Petkov <bpetkov@suse.de>,
Greg KH <gregkh@linuxfoundation.org>,
Kees Cook <keescook@google.com>, Hugh Dickins <hughd@google.com>,
Brian Gerst <brgerst@gmail.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Denys Vlasenko <dvlasenk@redhat.com>,
Rik van Riel <riel@redhat.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>,
David Laight <David.Laight@aculab.com>,
Eduardo Valentin <eduval@amazon.com>,
aliguori@amazon.com, Will Deacon <will.deacon@arm.com>,
Daniel Gruss <daniel.gruss@iaik.tugraz.at>,
Dave Hansen <dave.hansen@linux.intel.com>,
Ingo Molnar <mingo@kernel.org>,
moritz.lipp@iaik.tugraz.at,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Borislav Petkov <bp@alien8.de>,
michael.schwarz@iaik.tugraz.at,
richard.fellner@student.tugraz.at
Subject: Re: [patch 57/60] x86/mm/kpti: Add Kconfig
Date: Tue, 5 Dec 2017 10:34:08 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.20.1712051033010.1676@nanos> (raw)
In-Reply-To: <alpine.DEB.2.20.1712041757110.1788@nanos>
On Mon, 4 Dec 2017, Thomas Gleixner wrote:
> On Mon, 4 Dec 2017, Andy Lutomirski wrote:
> > On Mon, Dec 4, 2017 at 6:08 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
> > > --- a/security/Kconfig
> > > +++ b/security/Kconfig
> > > @@ -54,6 +54,16 @@ config SECURITY_NETWORK
> > > implement socket and networking access controls.
> > > If you are unsure how to answer this question, answer N.
> > >
> > > +config KERNEL_PAGE_TABLE_ISOLATION
> > > + bool "Remove the kernel mapping in user mode"
> > > + depends on X86_64 && JUMP_LABEL
> >
> > select JUMP_LABEL perhaps?
>
> Silly me. Yes.
Peter just pointed out that we switched everything to cpu_has() which is
using alternatives so jump label is not longer required at all.
Thanks,
tglx
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next prev parent reply other threads:[~2017-12-05 9:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20171204140706.296109558@linutronix.de>
2017-12-04 14:07 ` [patch 24/60] x86/paravirt: Dont patch flush_tlb_single Thomas Gleixner
2017-12-05 12:18 ` Juergen Gross
2017-12-04 14:07 ` [patch 28/60] x86/mm/kpti: Disable global pages if KERNEL_PAGE_TABLE_ISOLATION=y Thomas Gleixner
2017-12-05 14:34 ` Borislav Petkov
2017-12-04 14:07 ` [patch 29/60] x86/mm/kpti: Prepare the x86/entry assembly code for entry/exit CR3 switching Thomas Gleixner
2017-12-04 14:07 ` [patch 48/60] x86/mm: Move the CR3 construction functions to tlbflush.h Thomas Gleixner
2017-12-04 14:07 ` [patch 49/60] x86/mm: Remove hard-coded ASID limit checks Thomas Gleixner
2017-12-04 14:07 ` [patch 50/60] x86/mm: Put MMU to hardware ASID translation in one place Thomas Gleixner
2017-12-04 14:08 ` [patch 56/60] x86/mm/kpti: Disable native VSYSCALL Thomas Gleixner
2017-12-04 22:33 ` Andy Lutomirski
2017-12-04 14:08 ` [patch 57/60] x86/mm/kpti: Add Kconfig Thomas Gleixner
2017-12-04 16:54 ` Andy Lutomirski
2017-12-04 16:57 ` Thomas Gleixner
2017-12-05 9:34 ` Thomas Gleixner [this message]
2017-12-04 14:08 ` [patch 59/60] x86/mm/dump_pagetables: Check user space page table for WX pages Thomas Gleixner
2017-12-04 14:08 ` [patch 60/60] x86/mm/debug_pagetables: Allow dumping current pagetables Thomas Gleixner
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