From: Len Brown <len.brown@intel.com>
To: Randy Dunlap <rdunlap@xenotime.net>
Cc: linux-acpi@vger.kernel.org
Subject: Re: fadt.boot_flags.MSI_not_supported
Date: Thu, 28 Sep 2006 00:43:44 -0400 [thread overview]
Message-ID: <200609280043.44794.len.brown@intel.com> (raw)
In-Reply-To: <20060927212315.59ccbbe4.rdunlap@xenotime.net>
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On Thursday 28 September 2006 00:23, Randy Dunlap wrote:
> On Wed, 27 Sep 2006 20:14:58 -0400 Brown, Len wrote:
>
> > sifting through ACPI 3.0a I just noticed a bit (3)
> > in the FADT boot_flag to indicate the platform
> > does not support MSI.
> >
> > Has anybody noticed fadt.boot_flags bit 3 set on their box?
>
> Would we observe that in kernel boot messages or by using
> acpidump?
Using the acpitbl script attached:
# cat /proc/acpi/fadt |acpitbl |grep IAPC_BOOT_FLAGS
IAPC_BOOT_FLAGS: 0x0003
(this example has bit 0 and 1 set, we are looking for bit 3).
If you have an acpidump output, you can do it this way
$ acpixtract FACP acpidump.out | acpitbl | grep IAPC_BOOT_FLAGS
IAPC_BOOT_FLAGS: 0x0003
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next prev parent reply other threads:[~2006-09-28 4:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-28 0:14 fadt.boot_flags.MSI_not_supported Brown, Len
2006-09-28 4:23 ` fadt.boot_flags.MSI_not_supported Randy Dunlap
2006-09-28 4:43 ` Len Brown [this message]
2006-09-28 22:45 ` fadt.boot_flags.MSI_not_supported Andi Kleen
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