Re: [PATCH 10/22] x86/srso: Print mitigation for retbleed IBPB case

From: Borislav Petkov
Date: Thu Aug 24 2023 - 00:48:48 EST


On Sun, Aug 20, 2023 at 06:19:07PM -0700, Josh Poimboeuf wrote:
> When overriding the requested mitigation with IBPB due to retbleed=ibpb,
> print the actual mitigation.
>
> Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
> ---
> arch/x86/kernel/cpu/bugs.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
> index da480c089739..4e332707a343 100644
> --- a/arch/x86/kernel/cpu/bugs.c
> +++ b/arch/x86/kernel/cpu/bugs.c
> @@ -2427,7 +2427,7 @@ static void __init srso_select_mitigation(void)
> if (has_microcode) {
> pr_info("Retbleed IBPB mitigation enabled, using same for SRSO\n");

This print was supposed to do that. Now you have two for the IBPB case.
If you want to print it using the usual format, then whack the above.

--
Regards/Gruss,
Boris.

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