From: Matt Fleming <matt@console-pimps.org>
To: Toshi Kani <toshi.kani@hp.com>
Cc: Madper Xie <cxie@redhat.com>,
Matt Fleming <matt.fleming@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
Matthew Garrett <mjg59@srcf.ucam.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Josh Triplett <josh@joshtriplett.org>
Subject: Re: [BUG] can't boot up: unable to handle kernel paging request at ffffffffff340003
Date: Thu, 13 Feb 2014 10:55:47 +0000 [thread overview]
Message-ID: <20140213105547.GC20717@console-pimps.org> (raw)
In-Reply-To: <1392221703.5612.164.camel@misato.fc.hp.com>
On Wed, 12 Feb, at 09:15:03AM, Toshi Kani wrote:
>
> Hi Matt,
>
> Yes, I agree that the table size should be 0x38. However, ACPI spec
> states that bit0 of status indicates if the boot image graphic is valid.
> This bit is set to 0 (invalid) on the system. Can you check this bit
> and return when invalid?
Madper, could you try out this patch?
---
diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c
index 4df9591eadad..f15103dff4b4 100644
--- a/arch/x86/platform/efi/efi-bgrt.c
+++ b/arch/x86/platform/efi/efi-bgrt.c
@@ -42,7 +42,7 @@ void __init efi_bgrt_init(void)
if (bgrt_tab->header.length < sizeof(*bgrt_tab))
return;
- if (bgrt_tab->version != 1)
+ if (bgrt_tab->version != 1 || bgrt_tab->status != 1)
return;
if (bgrt_tab->image_type != 0 || !bgrt_tab->image_address)
return;
--
Matt Fleming, Intel Open Source Technology Center
next prev parent reply other threads:[~2014-02-13 10:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-10 7:23 [BUG] can't boot up: unable to handle kernel paging request at ffffffffff340003 Madper Xie
2014-02-10 17:52 ` Matt Fleming
2014-02-11 3:00 ` Madper Xie
2014-02-11 13:16 ` Matt Fleming
2014-02-11 13:47 ` Madper Xie
2014-02-11 14:18 ` Matt Fleming
2014-02-12 0:00 ` Rafael J. Wysocki
2014-02-12 16:15 ` Toshi Kani
2014-02-12 16:39 ` Matt Fleming
2014-02-13 10:55 ` Matt Fleming [this message]
2014-02-13 13:40 ` Madper Xie
2014-02-13 17:10 ` Matthew Garrett
2014-02-13 23:48 ` Rafael J. Wysocki
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