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Re: [PATCH 2/3] x86/tsx: Minor cleanup and improvements
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Thu, 27 May 2021 17:40:45 +0200
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- Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Wei Liu <wl@xxxxxxx>
- Delivery-date: Thu, 27 May 2021 15:41:13 +0000
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On Thu, May 27, 2021 at 02:25:18PM +0100, Andrew Cooper wrote:
> * Introduce cpu_has_arch_caps and replace boot_cpu_has(X86_FEATURE_ARCH_CAPS)
> * Read CPUID data into the appropriate boot_cpu_data.x86_capability[]
> element, as subsequent changes are going to need more cpu_has_* logic.
> * Use the hi/lo MSR helpers, which substantially improves code generation.
>
> No practical change.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Thanks, Roger.
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