linux-kernel - Re: [PATCH] x86/sev: Do RMP memory coverage check after max

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Message-ID: <20240621144956.GJZnWTFLIwvAxy7bMr@fat_crate.local>
Date: Fri, 21 Jun 2024 16:49:56 +0200
From: Borislav Petkov <bp@...en8.de>
To: Tom Lendacky <thomas.lendacky@....com>
Cc: linux-kernel@...r.kernel.org, x86@...nel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Michael Roth <michael.roth@....com>,
	Ashish Kalra <ashish.kalra@....com>
Subject: Re: [PATCH] x86/sev: Do RMP memory coverage check after max_pfn has
 been set

On Fri, Jun 21, 2024 at 09:37:46AM -0500, Tom Lendacky wrote:
> Ok, I'll remove the new static and resubmit. There is also a logic error
> in the original check which should be using PFN_UP instead of PHYS_PFN, so
> I'll include that, too.

So we said this fix should not go to stable because SNP host is not upstream
yet.
 
> Do you want a single patch or two patches, one to fix the PHYS_PFN to
> PFN_UP and one to move the check?

Since this is snp_rmptable_init() and that is also SNP host then I think
a single patch is fine.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette