Re: [PATCH v8 7/7] x86/sev: Add debugfs support for RMPOPT

From: Borislav Petkov

Date: Thu Jun 18 2026 - 16:12:08 EST


On Thu, Jun 18, 2026 at 02:57:45PM -0500, Kalra, Ashish wrote:
> Maybe i can add a line to this patch's commit message stating it's a debug-only interface
> with no stability guarantee.

Sounds to me like you didn't really read that article.

> We have to provide some method/interface for users to verify if RMP optimizations
> are enabled for a GB range of memory.

Sounds to me like this wants to be a facility which is present in the kernel
and it is going to be an ABI.

I am unclear on the real use case but I'm open to being persuaded otherwise.

Thx.

--
Regards/Gruss,
Boris.

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