linux-kernel - Re: [PATCH v6 1/8] x86/sev: Prepare for using the RMPREAD instruction to access the RMP

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Message-ID: <20241203205633.GIZ09wgSrmiK5x6Wuc@fat_crate.local>
Date: Tue, 3 Dec 2024 21:56:33 +0100
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>,
	Nikunj A Dadhania <nikunj@....com>,
	Neeraj Upadhyay <Neeraj.Upadhyay@....com>
Subject: Re: [PATCH v6 1/8] x86/sev: Prepare for using the RMPREAD
 instruction to access the RMP

On Tue, Dec 03, 2024 at 10:08:59AM -0600, Tom Lendacky wrote:
> The idea is to dump the actual RMP contents that exist in memory. The @e
> value only contains what the RMPREAD instruction chooses to expose.

Aha, ok. 

Oh well, get_raw_rmpentry() is fast enough so we can call it again.

Thx.

-- 
Regards/Gruss,
    Boris.

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