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SubjectRe: [PATCH RESEND V2 4/6] platform/x86: Add Intel Software Defined Silicon driver
On Tue, Dec 07, 2021 at 05:50:13PM -0800, David E. Box wrote:
> Intel Software Defined Silicon (SDSi) is a post manufacturing mechanism for
> activating additional silicon features. Features are enabled through a
> license activation process. The SDSi driver provides a per socket, sysfs
> attribute interface for applications to perform 3 main provisioning
> functions:
>
> 1. Provision an Authentication Key Certificate (AKC), a key written to
> internal NVRAM that is used to authenticate a capability specific
> activation payload.
>
> 2. Provision a Capability Activation Payload (CAP), a token authenticated
> using the AKC and applied to the CPU configuration to activate a new
> feature.
>
> 3. Read the SDSi State Certificate, containing the CPU configuration
> state.
>
> The operations perform function specific mailbox commands that forward the
> requests to SDSi hardware to perform authentication of the payloads and
> enable the silicon configuration (to be made available after power
> cycling).
>
> The SDSi device itself is enumerated as an auxiliary device from the
> intel_vsec driver and as such has a build dependency on CONFIG_INTEL_VSEC.
>
> Link: https://github.com/intel/intel-sdsi
> Signed-off-by: David E. Box <david.e.box@linux.intel.com>
> Reviewed-by: Mark Gross <markgross@kernel.org>
> ---
> V2
> - Use sysfs_emit() in guid_show()
> - Fix language in ABI, suggested by Bjorn
> - Fix wrong directory name in ABI doc
>
> .../ABI/testing/sysfs-driver-intel_sdsi | 77 +++
> MAINTAINERS | 5 +
> drivers/platform/x86/intel/Kconfig | 12 +
> drivers/platform/x86/intel/Makefile | 2 +
> drivers/platform/x86/intel/sdsi.c | 571 ++++++++++++++++++
> drivers/platform/x86/intel/vsec.c | 12 +-
> 6 files changed, 678 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/ABI/testing/sysfs-driver-intel_sdsi
> create mode 100644 drivers/platform/x86/intel/sdsi.c

Again, no release functions?

odd.

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