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Date:   Thu, 26 Oct 2017 10:41:18 +0200
From:   Juergen Gross <>
To:     Andy Lutomirski <>, X86 ML <>
Cc:     Borislav Petkov <>,
        "" <>,
        Brian Gerst <>,
        Dave Hansen <>,
        Linus Torvalds <>,
        Boris Ostrovsky <>
Subject: Re: [PATCH 09/18] x86/asm/64: De-Xen-ify our NMI code

On 26/10/17 10:26, Andy Lutomirski wrote:
> Xen PV is fundamentally incompatible with our fancy NMI code: it
> doesn't use IST at all, and Xen entries clobber two stack slots
> below the hardware frame.
> Drop Xen PV support from our NMI code entirely.
> Cc: Juergen Gross <>
> Cc: Boris Ostrovsky <>
> Signed-off-by: Andy Lutomirski <>

Acked-by: Juergen Gross <>


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