Re: [Xen-devel] [PATCH 1/2] x86/microcode: Indicate "not found" in rc of microcode_resume_cpu()

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 11.04.18 at 22:14, <simon@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> Make it possible to distinguish between a failure to load a microcode
> update and a failure to find any matching microcode update by returning
> -ENOENT (instead of -EIO) in the later case.
> 
> Signed-off-by: Simon Gaiser <simon@xxxxxxxxxxxxxxxxxxxxxx>
> ---
>  xen/arch/x86/microcode.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/xen/arch/x86/microcode.c b/xen/arch/x86/microcode.c
> index 77c1efc97f..e9fafb1d14 100644
> --- a/xen/arch/x86/microcode.c
> +++ b/xen/arch/x86/microcode.c
> @@ -248,7 +248,7 @@ int microcode_resume_cpu(unsigned int cpu)
>      __microcode_fini_cpu(cpu);
>      uci->cpu_sig = nsig;
>  
> -    err = -EIO;
> +    err = -ENOENT;
>      for_each_online_cpu ( cpu2 )
>      {
>          uci = &per_cpu(ucode_cpu_info, cpu2);

I think this should be part of the other patch, but I'll reply there
in a minute.

Jan


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