Messages in this thread | | | Date | Fri, 4 Feb 2022 15:37:56 +0200 | From | Mike Rapoport <> | Subject | Re: [PATCH v6 6/6] drivers/node: Show in sysfs node's crypto capabilities |
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On Fri, Feb 04, 2022 at 09:27:42AM -0300, Martin Fernandez wrote: > On 2/4/22, Mike Rapoport <rppt@kernel.org> wrote: > > On Thu, Feb 03, 2022 at 01:43:28PM -0300, Martin Fernandez wrote: > >> +Description: > >> + This value is 1 if all system memory in this node is > >> + marked with EFI_MEMORY_CPU_CRYPTO, indicating that the > > > > It didn't jump at me at previous postings, but other architectures won't > > necessary have EFI_MEMORY_CPU_CRYPTO marking crypto-capable memory. > > > > How about > > > > This value is 1 if all system memory in this node is capable of being > > protected with the CPU's memory cryptographic capabilities. It is 0 > > otherwise. > > On EFI architectures with value corresponds to EFI_MEMORY_CPU_CRYPTO. > > > > > > Yes, sounds good to me. > > Is there other architecture with something similar to this? Or are you > thinking on the possibility of such architecture?
AFAIU, s390 and powerpc have memory encryption capabilities, I don't know the details though.
-- Sincerely yours, Mike.
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