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Re: [PATCH 3/4] x86/tsx: Remove opencoded MSR_ARCH_CAPS check
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 17 May 2023 16:38:20 +0200
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 17 May 2023 14:38:31 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 16.05.2023 16:53, Andrew Cooper wrote:
> The current cpu_has_tsx_ctrl tristate is serving double pupose; to signal the
> first pass through tsx_init(), and the availability of MSR_TSX_CTRL.
>
> Drop the variable, replacing it with a once boolean, and altering
> cpu_has_tsx_ctrl to come out of the feature information.
>
> No functional change.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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