linux-kernel - Re: [PATCH] x86/paravirt: convert simple paravirt functions to asm

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Message-ID: <20230312204738.GCZA46aqNzDRjqVF/u@fat_crate.local>
Date:   Sun, 12 Mar 2023 21:47:38 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Juergen Gross <jgross@...e.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        virtualization@...ts.linux-foundation.org,
        "Srivatsa S. Bhat (VMware)" <srivatsa@...il.mit.edu>,
        Alexey Makhalov <amakhalov@...are.com>,
        VMware PV-Drivers Reviewers <pv-drivers@...are.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] x86/paravirt: convert simple paravirt functions to asm

On Fri, Mar 10, 2023 at 07:24:17AM +0100, Juergen Gross wrote:
> The "normal" cases not using alternatives should rather be switched to
> static calls.

Or that.

> Whether it is possible to mix a static call with alternatives needs to
> be evaluated.

I'd prefer not to mix them. Either should be fine and if neither have
the required functionality, then it should be added depending on which
- static calls or alternatives - would make things simpler.

I'd love to get rid of the whole paravirt glue and use the facilities we
have in the tree instead.

But no hurry - it should be nice and clean work. :-)

-- 
Regards/Gruss,
    Boris.

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