From: Keir Fraser <keir@xensource.com>
To: Stefan Berger <stefanb@us.ibm.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Subject: Re: [PATCH] [Xen] Check FADT's signature
Date: Fri, 10 Aug 2007 14:23:26 +0100 [thread overview]
Message-ID: <C2E2255E.14004%keir@xensource.com> (raw)
In-Reply-To: <OF4384DAC3.D5318426-ON85257333.003F31FE-85257333.003FC547@us.ibm.com>
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On 10/8/07 12:36, "Stefan Berger" <stefanb@us.ibm.com> wrote:
> (XEN) (1) Mapped 0xf601f to ff0f601f
> (XEN) Using APIC driver default
> (XEN) IN acpi_parse_fadt.
> (XEN) (2) Mapped 0x3ffcfec0 to fff9bec0, base = 0xfff9b000
> (XEN) ACPI: Invalid FADT signature A_\b_ADR
This ŒA__ADR¹ looks remarkably like the middle of another ACPI table. :-)
Perhaps you could scan all physical memory in the range 3ffcd000-3ffd0000,
either via /dev/mem in native Linux, or hack some code to map-and-check
within Xen, or whatever, and look for that string? It¹d be interesting to
know:
a) does it appear at all?
b) is it at the same offset in a page as we expect the fadt signature to
appear (ie., offset 0xec0)?
c) is it in a page we mapped previously via __acpi_map_table()?
-- Keir
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next prev parent reply other threads:[~2007-08-10 13:23 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-09 13:35 [PATCH] [Xen] Check FADT's signature Stefan Berger
2007-08-09 13:33 ` Keir Fraser
2007-08-09 17:54 ` Stefan Berger
2007-08-10 6:55 ` Keir Fraser
2007-08-10 11:36 ` Stefan Berger
2007-08-10 13:23 ` Keir Fraser [this message]
2007-08-10 8:51 ` Jan Beulich
2007-08-10 13:58 ` Stefan Berger
2007-08-10 15:09 ` Keir Fraser
2007-08-10 15:35 ` Stefan Berger
2007-08-10 15:58 ` Keir Fraser
2007-08-10 16:11 ` Stefan Berger
2007-08-10 16:15 ` Keir Fraser
2007-08-10 17:00 ` Stefan Berger
2007-08-10 18:21 ` Keir Fraser
2007-08-10 19:15 ` Keir Fraser
2007-08-24 6:19 ` Stefan Berger
2007-08-24 7:13 ` Jan Beulich
2007-08-24 15:04 ` Keir Fraser
2007-08-24 15:20 ` Keir Fraser
2007-08-27 10:50 ` Stefan Berger
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