From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/5] arm64: kernel: Add support for User Access Override
Date: Tue, 9 Feb 2016 09:47:08 +0000 [thread overview]
Message-ID: <20160209094707.GA22874@arm.com> (raw)
In-Reply-To: <13475776.5b1DTHhHh9@wuerfel>
On Fri, Feb 05, 2016 at 04:40:54PM +0100, Arnd Bergmann wrote:
> * Do we expect to handle this using live patching indefinitely? I can imagine
> that at some point in the future, ARMv8.2+ systems will be the vast majority,
> so it might be nice to support enabling it unconditionally (same for any
> of the alternative bits really). Is there a long-term strategy?
Another good reason for an option turning these things on by default is
that it makes debugging *so* much easier when the vmlinux matches what's
actually running!
So yes, that's definitely something we should look at in the long-term,
but we still need the live patching for distro kernels that will assumedly
want a single Image covering ARMv8+ for a while.
Will
next prev parent reply other threads:[~2016-02-09 9:47 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-05 14:58 [PATCH v2 0/5] arm64: kernel: Add support for User Access Override James Morse
2016-02-05 14:58 ` [PATCH v2 1/5] arm64: cpufeature: Change read_cpuid() to use sysreg's mrs_s macro James Morse
2016-02-05 14:58 ` [PATCH v2 2/5] arm64: add ARMv8.2 id_aa64mmfr2 boiler plate James Morse
2016-03-03 17:59 ` Christopher Covington
2016-03-03 18:27 ` Robin Murphy
2016-03-03 19:03 ` Christopher Covington
2016-03-03 19:19 ` Will Deacon
2016-03-04 10:20 ` Suzuki K. Poulose
2016-03-04 13:37 ` James Morse
2016-03-04 13:54 ` Robin Murphy
2016-03-04 14:59 ` Mark Rutland
2016-03-04 18:15 ` Christopher Covington
2016-02-05 14:58 ` [PATCH v2 3/5] arm64: kernel: Add support for User Access Override James Morse
2016-02-18 12:26 ` Catalin Marinas
2016-02-05 14:58 ` [PATCH v2 4/5] arm64: cpufeature: Test 'matches' pointer to find the end of the list James Morse
2016-02-05 14:58 ` [PATCH v2 5/5] arm64: kernel: Don't toggle PAN on systems with UAO James Morse
2016-02-18 14:36 ` Catalin Marinas
2016-02-18 14:43 ` James Morse
2016-02-05 15:40 ` [PATCH v2 0/5] arm64: kernel: Add support for User Access Override Arnd Bergmann
2016-02-09 9:47 ` Will Deacon [this message]
2016-02-18 18:03 ` Catalin Marinas
2016-02-19 15:38 ` Peter Maydell
2016-02-19 16:46 ` Catalin Marinas
2016-02-19 16:54 ` Peter Maydell
2016-02-19 16:57 ` Ard Biesheuvel
2016-02-19 17:03 ` Peter Maydell
2016-03-07 16:43 ` James Morse
2016-03-07 17:23 ` Russell King - ARM Linux
2016-03-07 17:40 ` James Morse
2016-03-07 17:51 ` Russell King - ARM Linux
2016-03-07 17:38 ` Catalin Marinas
2016-03-07 20:54 ` Kees Cook
2016-03-08 17:19 ` Catalin Marinas
2016-03-08 17:39 ` Kees Cook
2016-03-08 18:22 ` Catalin Marinas
2016-03-08 18:27 ` Kees Cook
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