linux-kernel - [tip:x86/urgent] x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012

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Message-ID: <tip-3d6e77a3ddb8e4156b89f4273ff8c7d37abaf781@git.kernel.org>
Date:	Mon, 24 May 2010 23:07:45 GMT
From:	tip-bot for Gabor Gombas <gombasg@...ikabel.hu>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	akpm@...ux-foundation.org, stable@...nel.org, tglx@...utronix.de,
	hpa@...ux.intel.com, gombasg@...ikabel.hu
Subject: [tip:x86/urgent] x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012

Commit-ID:  3d6e77a3ddb8e4156b89f4273ff8c7d37abaf781
Gitweb:     http://git.kernel.org/tip/3d6e77a3ddb8e4156b89f4273ff8c7d37abaf781
Author:     Gabor Gombas <gombasg@...ikabel.hu>
AuthorDate: Mon, 24 May 2010 12:13:18 -0700
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Mon, 24 May 2010 13:33:14 -0700

x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012

The low-memory corruption checker triggers during suspend/resume, so we
need to reserve the low 64k.  Don't be fooled that the BIOS identifies
itself as "Dell Inc.", it's still Phoenix BIOS.

[ hpa: I think we blacklist almost every BIOS in existence.  We should
either change this to a whitelist or just make it unconditional. ]

Signed-off-by: Gabor Gombas <gombasg@...ikabel.hu>
LKML-Reference: <201005241913.o4OJDIMM010877@...p1.linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
Cc: <stable@...nel.org>
---
 arch/x86/kernel/setup.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index e802989..b4ae4ac 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -676,6 +676,17 @@ static struct dmi_system_id __initdata bad_bios_dmi_table[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "DG45FC"),
 		},
 	},
+	/*
+	 * The Dell Inspiron Mini 1012 has DMI_BIOS_VENDOR = "Dell Inc.", so
+	 * match on the product name.
+	 */
+	{
+		.callback = dmi_low_memory_corruption,
+		.ident = "Phoenix BIOS",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
+		},
+	},
 #endif
 	{}
 };
--
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