linux-kernel - Re: [PATCH v2 1/2] paravirt,xen: remove xen

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Message-ID: <0ad4eb2a-7935-e574-9485-638f98613452@oracle.com>
Date:   Fri, 18 Aug 2017 09:22:31 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org,
        xen-devel@...ts.xenproject.org, x86@...nel.org,
        lguest@...ts.ozlabs.org
Cc:     hpa@...or.com, tglx@...utronix.de, mingo@...hat.com,
        rusty@...tcorp.com.au
Subject: Re: [PATCH v2 1/2] paravirt,xen: remove xen_patch()

On 08/16/2017 01:31 PM, Juergen Gross wrote:
> Xen's paravirt patch function xen_patch() does some special casing for
> irq_ops functions to apply relocations when those functions can be
> patched inline instead of calls.
>
> Unfortunately none of the special case function replacements is small
> enough to be patched inline, so the special case never applies.
>
> As xen_patch() will call paravirt_patch_default() in all cases it can
> be just dropped. xen-asm.h doesn't seem necessary without xen_patch()
> as the only thing left in it would be the definition of XEN_EFLAGS_NMI
> used only once. So move that definition and remove xen-asm.h.
>
> Signed-off-by: Juergen Gross <jgross@...e.com>

Applied to for-linus-4.14

-boris