[OT] 2.6.9: allow config to specify custom DSDT (Ulf Dambacher)

[OT] 2.6.9: allow config to specify custom DSDT (Ulf Dambacher)

[Zhu, Yi]

Hi,

How about the DSDT_INITRD patch in SuSE kernel? I think it is cleaner
than this one.
What do you think?

Thanks,
-yi

Len Brown wrote:
> Note that CONFIG_ACPI_CUSTOM_DSDT depends on CONFIG_STANDALONE=n
> 
> The reason is that otherwise the allmodconfig and
> allyesconfig builds break.
> 
> thanks,
> -Len


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Re: [OT] 2.6.9: allow config to specify custom DSDT (Ulf Dambacher)

[Len Brown]

It has always been a mistake for SuSE to include that patch,
because an OSD can't possibly support modified OEM firmware.

DSDT overrides are for developers and experimentation,
not for production use.  Developers know how to build kernels,
and those that don't use initrd's can't use the initrd
method anyway.

The only argument for the initrd patch I've heard is from
somebody who deploys and supports the same kernel on
multiple systems, each with different DSDT patches.
I recommend that they choose their hardware vendor more
carefully in the future.

Also, the initrd pach isn't "clean" -- there isn't a supported
interface for appending junk onto an initrd, it is a hack to
do so with magic strings.

-Len
 
On Thu, 2004-10-21 at 23:20, Zhu, Yi wrote:
> Hi,
> 
> How about the DSDT_INITRD patch in SuSE kernel? I think it is cleaner
> than this one.
> What do you think?
> 
> Thanks,
> -yi
> 
> Len Brown wrote:
> > Note that CONFIG_ACPI_CUSTOM_DSDT depends on CONFIG_STANDALONE=n
> > 
> > The reason is that otherwise the allmodconfig and
> > allyesconfig builds break.
> > 
> > thanks,
> > -Len



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Re: [OT] 2.6.9: allow config to specify custom DSDT (Ulf Dambacher)

[Bruno Ducrot]

On Fri, Oct 22, 2004 at 12:14:03AM -0400, Len Brown wrote:
> I recommend that they choose their hardware vendor more
> carefully in the future.

You don't have always the *choice* of the hardware vendor (though I never
have to override DSDT in servers for now).

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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[PATCH] Allow ACPI_CUSTOM_DSDT for IA64

[Keshavamurthy Anil S]

On Fri, Oct 22, 2004 at 12:14:03AM -0400, Len Brown wrote:
> DSDT overrides are for developers and experimentation,
> not for production use.  Developers know how to build kernels,
> and those that don't use initrd's can't use the initrd
> method anyway.

Hi Len,
	Currently DSDT override patch is available only on X86 and
this is required for IA64 too. 

The attached patch(for 2.6.10-rc1)make this option available on IA64.
Will you please consider applying this path.

---

 linux-2.6.10-rc1-askeshav/drivers/acpi/Kconfig |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/acpi/Kconfig~config_dsdt drivers/acpi/Kconfig
--- linux-2.6.10-rc1/drivers/acpi/Kconfig~config_dsdt	2004-10-25 13:43:37.078238831 -0700
+++ linux-2.6.10-rc1-askeshav/drivers/acpi/Kconfig	2004-10-25 13:45:31.171987433 -0700
@@ -215,7 +215,7 @@ config ACPI_TOSHIBA
 
 config ACPI_CUSTOM_DSDT
 	bool "Include Custom DSDT"
-	depends on X86 && ACPI_INTERPRETER && !STANDALONE
+	depends on ACPI_INTERPRETER && !STANDALONE
 	default n 
 	help
 	  Thist option is to load a custom ACPI DSDT
_


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Re: [PATCH] Allow ACPI_CUSTOM_DSDT for IA64

[Len Brown]

Applied.

thanks,
-Len

On Mon, 2004-10-25 at 16:49, Keshavamurthy Anil S wrote:
> On Fri, Oct 22, 2004 at 12:14:03AM -0400, Len Brown wrote:
> > DSDT overrides are for developers and experimentation,
> > not for production use.  Developers know how to build kernels,
> > and those that don't use initrd's can't use the initrd
> > method anyway.
> 
> Hi Len,
>         Currently DSDT override patch is available only on X86 and
> this is required for IA64 too.
> 
> The attached patch(for 2.6.10-rc1)make this option available on IA64.
> Will you please consider applying this path.
> 
> ---
> 
>  linux-2.6.10-rc1-askeshav/drivers/acpi/Kconfig |    2 +-
>  1 files changed, 1 insertion(+), 1 deletion(-)
> 
> diff -puN drivers/acpi/Kconfig~config_dsdt drivers/acpi/Kconfig
> --- linux-2.6.10-rc1/drivers/acpi/Kconfig~config_dsdt   2004-10-25
> 13:43:37.078238831 -0700
> +++ linux-2.6.10-rc1-askeshav/drivers/acpi/Kconfig      2004-10-25
> 13:45:31.171987433 -0700
> @@ -215,7 +215,7 @@ config ACPI_TOSHIBA
> 
>  config ACPI_CUSTOM_DSDT
>         bool "Include Custom DSDT"
> -       depends on X86 && ACPI_INTERPRETER && !STANDALONE
> +       depends on ACPI_INTERPRETER && !STANDALONE
>         default n
>         help
>           Thist option is to load a custom ACPI DSDT
> _
> 
> 



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Re: [OT] 2.6.9: allow config to specify custom DSDT (Ulf Dambacher)

[Stefan Seyfried]

On Fri, Oct 22, 2004 at 12:14:03AM -0400, Len Brown wrote:
> It has always been a mistake for SuSE to include that patch,
> because an OSD can't possibly support modified OEM firmware.

Well, you know, there are also basically "unsupported" SUSE
releases, namely the box products. And there it is nice to
be able to override the DSDT with a simple "mk_initrd" without
having to recompile the Kernel _and_ all additional drivers.
You know, the nice 3d drivers or the wireless drivers or...

Of course the customer is on its own if he is running with
a patched DSDT, but he is also on his own if he is _not_ but
then with a non-working machine.

> Also, the initrd pach isn't "clean" -- there isn't a supported
> interface for appending junk onto an initrd, it is a hack to
> do so with magic strings.

This is something one could change if there was an agreement on
how to do it right and "clean".
-- 
Stefan Seyfried



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