From: "Alejandro Vallejo" <alejandro.vallejo@cloud.com>
To: "Jan Beulich" <jbeulich@suse.com>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
"Roger Pau Monné" <roger.pau@citrix.com>,
Xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [PATCH v4 2/2] x86/fpu: Rework fpu_setup_fpu() uses to split it in two
Date: Tue, 08 Oct 2024 10:38:39 +0100 [thread overview]
Message-ID: <D4QBOT9OWGK2.1AOPQG6UGK35F@cloud.com> (raw)
In-Reply-To: <260d904c-54b0-456e-b4a5-9811f2e62c2c@suse.com>
On Tue Oct 8, 2024 at 7:37 AM BST, Jan Beulich wrote:
> On 07.10.2024 17:52, Alejandro Vallejo wrote:
> > It was trying to do too many things at once and there was no clear way of
> > defining what it was meant to do. This commit splits the function in two.
> >
> > 1. A function to return the FPU to power-on reset values.
> > 2. A x87/SSE state loader (equivalent to the old function when it took
> > a data pointer).
> >
> > The old function also had a concept of "default" values that the FPU
> > would be configured for in some cases but not others. This patch removes
> > that 3rd vague initial state and replaces it with power-on reset.
> >
> > While doing this make sure the abridged control tag is consistent with the
> > manuals and starts as 0xFF
> >
> > Signed-off-by: Alejandro Vallejo <alejandro.vallejo@cloud.com>
> > Reviewed-by: Jan Beulich <jbeulich@suse.com>
> > --
> > @Jan: The patch changed substantially. Are you still ok with this R-by?
>
> I am. However in such a situation imo you'd better drop the tag, for it to
> be re-offered (if desired). It can very well happen that the person simply
> doesn't notice the question pointed at them.
>
> Jan
Noted for next time. Thanks for the promptness!
Cheers,
Alejandro
prev parent reply other threads:[~2024-10-08 9:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-07 15:52 [PATCH v4 0/2] x86: FPU handling cleanup Alejandro Vallejo
2024-10-07 15:52 ` [PATCH v4 1/2] x86/fpu: Combine fpu_ctxt and xsave_area in arch_vcpu Alejandro Vallejo
2024-10-08 7:47 ` Frediano Ziglio
2024-10-08 9:41 ` Alejandro Vallejo
2024-10-07 15:52 ` [PATCH v4 2/2] x86/fpu: Rework fpu_setup_fpu() uses to split it in two Alejandro Vallejo
2024-10-08 6:37 ` Jan Beulich
2024-10-08 9:38 ` Alejandro Vallejo [this message]
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