linux-kernel - [127/200] x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012

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Message-Id: <20100701174257.150060544@clark.site>
Date:	Thu, 01 Jul 2010 10:43:37 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Gabor Gombas <gombasg@...ikabel.hu>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: [127/200] x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012

2.6.34-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Gabor Gombas <gombasg@...ikabel.hu>

commit 3d6e77a3ddb8e4156b89f4273ff8c7d37abaf781 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 arch/x86/kernel/setup.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -676,6 +676,17 @@ static struct dmi_system_id __initdata b
 			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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