Re: [PATCH v1] EDAC/bluefield_edac: Use ARM SMC for EMI access

From: Borislav Petkov
Date: Wed Aug 30 2023 - 15:05:28 EST


On Wed, Aug 30, 2023 at 06:56:14AM -0400, Shravan Kumar Ramani wrote:
> Add secure read/write calls (arm_smccc_smc) to bluefield_edac.
> The ACPI table entry decides whether SMC is need for accessing

SMC? Self-Modifying Code?

> the registers in the External Memory Interface block. If not,
> the registers may be mapped and accessed directly.

I'm sure there's a human readable explanation for the above.

> v0 -> v1
> Updated commit message

I still have no clue what those secure calls are.

I'm sure there's some ARM documentation which you use in order to
explain why those are needed.

> +static int edac_readl(void __iomem *addr, uint32_t *result,

No "edac_" previxes to driver-local functions. They belong to the EDAC
subsystem.

--
Regards/Gruss,
Boris.

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