linux-kernel - [PATCH 3/3] EDAC, mce_amd_inj: Set MISCV on injection

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-Id: <1433950426-10084-3-git-send-email-bp@alien8.de>
Date:	Wed, 10 Jun 2015 17:33:46 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>
Cc:	linux-edac <linux-edac@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/3] EDAC, mce_amd_inj: Set MISCV on injection

From: Borislav Petkov <bp@...e.de>

When during injection we populate MCi_MISC by writing into misc, we need
to set the MiscV bit in the corresponding MCi_STATUS register which
denotes that there's valid info in the MCi_MISC register.

Signed-off-by: Borislav Petkov <bp@...e.de>
---
 drivers/edac/mce_amd_inj.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/edac/mce_amd_inj.c b/drivers/edac/mce_amd_inj.c
index 5001d166f54f..021f256b7f11 100644
--- a/drivers/edac/mce_amd_inj.c
+++ b/drivers/edac/mce_amd_inj.c
@@ -248,6 +248,9 @@ static void do_inject(void)
 	unsigned int cpu = i_mce.extcpu;
 	u8 b = i_mce.bank;
 
+	if (i_mce.misc)
+		i_mce.status |= MCI_STATUS_MISCV;
+
 	if (inj_type == SW_INJ) {
 		amd_decode_mce(NULL, 0, &i_mce);
 		return;
-- 
2.3.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/