linux-kernel - Re: [PATCH] x86/sev: Fully map the #VC exception stacks

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Message-ID: <YVb2AGXAwYx/OI6J@suse.de>
Date:   Fri, 1 Oct 2021 13:50:24 +0200
From:   Joerg Roedel <jroedel@...e.de>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Tom Lendacky <thomas.lendacky@....com>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Brijesh Singh <brijesh.singh@....com>
Subject: Re: [PATCH] x86/sev: Fully map the #VC exception stacks

On Fri, Oct 01, 2021 at 10:57:57AM +0200, Borislav Petkov wrote:
> Please use those defines so that this keeps working when someone mad
> decides to increase those exception stack sizes again because everything
> *and* the kitchen sink wants to instrument the damn kernel. Nothing to
> see here people...

Yeah, I think the right fix is to export cea_map_percpu_pages() and move
the cea_map_stack() macro to a header and use it to map the VC stacks.

Regards,

	Joerg