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Re: [PATCH v3 1/5] x86/microcode: Allow reading microcode revision even if it can't be updated
- To: Alejandro Vallejo <alejandro.vallejo@xxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Mon, 19 Jun 2023 16:49:12 +0100
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- Cc: Jan Beulich <jbeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 15/06/2023 4:48 pm, Alejandro Vallejo wrote:
> diff --git a/xen/arch/x86/cpu/microcode/core.c
> b/xen/arch/x86/cpu/microcode/core.c
> index e65af4b82e..df7e1df870 100644
> --- a/xen/arch/x86/cpu/microcode/core.c
> +++ b/xen/arch/x86/cpu/microcode/core.c
> @@ -750,11 +750,12 @@ __initcall(microcode_init);
> @@ -860,6 +861,9 @@ int __init early_microcode_init(unsigned long *module_map,
> break;
> }
>
> + if ( ucode_ops.collect_cpu_info )
> + ucode_ops.collect_cpu_info();
> +
I still think this wants to be the other side of "ucode loading fully
unavailable", just below.
I'm confident it will result in easier-to-follow logic.
~Andrew
> if ( !ucode_ops.apply_microcode )
> {
> printk(XENLOG_WARNING "Microcode loading not available\n");
>
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