| Subject | Re: [PATCH 00/34] x86: Memory Protection Keys (v5) | From | Dave Hansen <> | Date | Fri, 4 Dec 2015 15:38:41 -0800 |
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On 12/04/2015 03:31 PM, Andy Lutomirski wrote: > On Thu, Dec 3, 2015 at 5:14 PM, Dave Hansen <dave@sr71.net> wrote: >> Memory Protection Keys for User pages is a CPU feature which will >> first appear on Skylake Servers, but will also be supported on >> future non-server parts. It provides a mechanism for enforcing >> page-based protections, but without requiring modification of the >> page tables when an application changes protection domains. See >> the Documentation/ patch for more details. > > What, if anything, happened to the signal handling parts?
Patches 12 and 13 contain most of it:
x86, pkeys: fill in pkey field in siginfo signals, pkeys: notify userspace about protection key faults
I decided to just not try to preserve the pkey_get/set() semantics across entering and returning from signals, fwiw.
> Also, do you have a git tree for this somewhere? I can't actually > enable it (my laptop, while very shiny, is not a Skylake server), but > I can poke around a bit.
http://git.kernel.org/cgit/linux/kernel/git/daveh/x86-pkeys.git/
Thanks for taking a look!
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