[tip: x86/bugs] x86/srso: Print mitigation for retbleed IBPB case
From: tip-bot2 for Josh Poimboeuf
Date: Tue Sep 05 2023 - 12:42:47 EST
The following commit has been merged into the x86/bugs branch of tip:
Commit-ID: 2294b77c2483ebc7a6c1cca2becf6b0164564a5b
Gitweb: https://git.kernel.org/tip/2294b77c2483ebc7a6c1cca2becf6b0164564a5b
Author: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
AuthorDate: Mon, 04 Sep 2023 22:04:51 -07:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Tue, 05 Sep 2023 12:05:06 +02:00
x86/srso: Print mitigation for retbleed IBPB case
When overriding the requested mitigation with IBPB due to retbleed=ibpb,
print the mitigation in the usual format instead of a custom error
message.
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Acked-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Link: https://lore.kernel.org/r/ec3af919e267773d896c240faf30bfc6a1fd6304.1693889988.git.jpoimboe@xxxxxxxxxx
---
arch/x86/kernel/cpu/bugs.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 235c0e0..6c47f37 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -2425,9 +2425,8 @@ static void __init srso_select_mitigation(void)
if (retbleed_mitigation == RETBLEED_MITIGATION_IBPB) {
if (has_microcode) {
- pr_err("Retbleed IBPB mitigation enabled, using same for SRSO\n");
srso_mitigation = SRSO_MITIGATION_IBPB;
- goto pred_cmd;
+ goto out;
}
}
@@ -2490,7 +2489,8 @@ static void __init srso_select_mitigation(void)
break;
}
- pr_info("%s%s\n", srso_strings[srso_mitigation], (has_microcode ? "" : ", no microcode"));
+out:
+ pr_info("%s%s\n", srso_strings[srso_mitigation], has_microcode ? "" : ", no microcode");
pred_cmd:
if ((!boot_cpu_has_bug(X86_BUG_SRSO) || srso_cmd == SRSO_CMD_OFF) &&