From: Dave Hansen <dave.hansen@intel.com>
To: Martin Fernandez <martin.fernandez@eclypsium.com>,
linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
x86@kernel.org, hpa@zytor.com, dave.hansen@linux.intel.com,
luto@kernel.org, peterz@infradead.org, ardb@kernel.org,
dvhart@infradead.org, andy@infradead.org,
gregkh@linuxfoundation.org, rafael@kernel.org,
daniel.gutson@eclypsium.com, hughsient@gmail.com,
alison.schofield@intel.com, alex@eclypsium.com
Subject: Re: [PATCH 5/5] Show in sysfs if a memory node is able to do encryption
Date: Fri, 5 Nov 2021 17:04:33 -0700 [thread overview]
Message-ID: <9437a437-c119-b424-1b01-366d16d4df07@intel.com> (raw)
In-Reply-To: <20211105212724.2640-6-martin.fernandez@eclypsium.com>
On 11/5/21 2:27 PM, Martin Fernandez wrote:
> +++ b/Documentation/ABI/testing/sysfs-devices-node
> @@ -0,0 +1,10 @@
> +What: /sys/devices/system/node/nodeX/crypto_capable
> +Date: October 2021
> +Contact: Martin Fernandez <martin.fernandez@eclypsium.com>
> +Users: fwupd
> +Description:
> + This value is 1 if all system memory in this node is
> + marked with EFI_MEMORY_CPU_CRYPTO, indicating that the
> + system memory is capable of being protected with the
> + CPU’s memory cryptographic capabilities. It is 0
> + otherwise.
This looks fine. I do wonder if we want to call this the full on
cpu_crypto_capable, in case we ever get something like CXL devices with
system memory and their *own* crypto capabilities.
next prev parent reply other threads:[~2021-11-06 0:04 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-05 21:27 [PATCH 0/5] x86: Show in sysfs if a memory node is able to do encryption Martin Fernandez
2021-11-05 21:27 ` [PATCH 1/5] Extend memblock to support memory encryption Martin Fernandez
2021-11-05 23:08 ` Dave Hansen
2021-11-05 21:27 ` [PATCH 2/5] Extend pg_data_t to hold information about " Martin Fernandez
2021-11-05 23:30 ` Dave Hansen
2021-11-05 21:27 ` [PATCH 3/5] Extend e820_table " Martin Fernandez
2021-11-05 23:39 ` Dave Hansen
2021-11-08 18:40 ` Martin Fernandez
2021-11-08 21:13 ` Dave Hansen
2021-11-09 19:16 ` Martin Fernandez
2021-11-05 21:27 ` [PATCH 4/5] Mark e820_entries as crypto capable from EFI memmap Martin Fernandez
2021-11-06 0:02 ` Dave Hansen
2021-11-05 21:27 ` [PATCH 5/5] Show in sysfs if a memory node is able to do encryption Martin Fernandez
2021-11-06 0:04 ` Dave Hansen [this message]
2021-11-06 0:49 ` [PATCH 0/5] x86: " Dave Hansen
2021-11-06 21:35 ` Williams, Dan J
2021-11-07 17:58 ` Dave Hansen
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