Messages in this thread | | | Date | Tue, 1 Feb 2022 15:54:19 -0800 | From | Dave Hansen <> | Subject | Re: [PATCH V8 02/44] Documentation/protection-keys: Clean up documentation for User Space pkeys |
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On 2/1/22 15:49, Ira Weiny wrote: >> Protection Keys for Userspace (PKU) can be found on: >> * Intel server CPUs, Skylake and later >> * Intel client CPUs, Tiger Lake (11th Gen Core) and later >> * Future AMD CPUs >> >> It would be great if the AMD folks can elaborate on that a bit, but I >> understand it might not be possible if the CPUs aren't out yet. > Updated. > > But I'm leery about putting in any information about AMD CPU's. Who could I > ask directly?
I forgot who from AMD was chiming in on pkeys. So, I did:
git log --author=amd.com arch/x86/
and searched for 'keys'. I came up with this pretty quickly:
> commit 38f3e775e9c242f5430a9c08c11be7577f63a41c > Author: Babu Moger <babu.moger@amd.com> > Date: Thu May 28 11:08:23 2020 -0500 > > x86/Kconfig: Update config and kernel doc for MPK feature on AMD > > AMD's next generation of EPYC processors support the MPK (Memory > Protection Keys) feature. Update the dependency and documentation. > > Signed-off-by: Babu Moger <babu.moger@amd.com> > Signed-off-by: Borislav Petkov <bp@suse.de> > Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> > Link: https://lkml.kernel.org/r/159068199556.26992.17733929401377275140.stgit@naples-babu.amd.com You also don't have to go out and find this information for your documentation. Just say "future" and then poke the AMD folks.
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