linux-kernel - Re: [PATCH] ACPI / tables: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses

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Message-ID: <3437356.OAWebRV9e2@vostro.rjw.lan>
Date:	Tue, 16 Feb 2016 21:59:31 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Colin King <colin.king@...onical.com>
Cc:	Jonathan Corbet <corbet@....net>,
	"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
	linux-doc@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI / tables: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses

On Thursday, January 21, 2016 05:05:47 PM Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1529381
> 
> Some HP laptops seem to have invalid 64 bit FADT X_PM* addresses
> which are causing various boot issues.  In these cases, it would
> be useful to force ACPI to use the valid legacy 32 bit equivalent
> PM addresses.  Add a acpi_force_32bit_fadt_addr to set the ACPICA
> acpi_gbl_use32_bit_fadt_addresses to TRUE to force this override.
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

I've queued this up for 4.6 with some minor changes in the subject/changelog.

Thanks,
Rafael