linux-kernel - [PATCH 2/2] x86/mce: Drop AMD specific "DEFERRED" case from Intel severity rule list

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200930021313.31810-3-tony.luck@intel.com>
Date:   Tue, 29 Sep 2020 19:13:13 -0700
From:   Tony Luck <tony.luck@...el.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Tony Luck <tony.luck@...el.com>,
        Youquan Song <youquan.song@...el.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] x86/mce: Drop AMD specific "DEFERRED" case from Intel severity rule list

Way back in v3.19 Intel and AMD shared the same machine check severity
grading code. So it made sense to add a case for AMD DEFERRED errors in
commit e3480271f592 ("x86, mce, severity: Extend the the mce_severity mechanism to handle UCNA/DEFERRED error")

But later in v4.2 AMD switched to a separate grading function in
commit bf80bbd7dcf5 ("x86/mce: Add an AMD severities-grading function")

Belatedly drop the DEFERRED case from the Intel rule list.

Signed-off-by: Tony Luck <tony.luck@...el.com>
---
 arch/x86/kernel/cpu/mce/severity.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/x86/kernel/cpu/mce/severity.c b/arch/x86/kernel/cpu/mce/severity.c
index 567ce09a0286..e0722461bb57 100644
--- a/arch/x86/kernel/cpu/mce/severity.c
+++ b/arch/x86/kernel/cpu/mce/severity.c
@@ -96,10 +96,6 @@ static struct severity {
 		PANIC, "In kernel and no restart IP",
 		EXCP, KERNEL_RECOV, MCGMASK(MCG_STATUS_RIPV, 0)
 		),
-	MCESEV(
-		DEFERRED, "Deferred error",
-		NOSER, MASK(MCI_STATUS_UC|MCI_STATUS_DEFERRED|MCI_STATUS_POISON, MCI_STATUS_DEFERRED)
-		),
 	MCESEV(
 		KEEP, "Corrected error",
 		NOSER, BITCLR(MCI_STATUS_UC)
-- 
2.21.1