Re: Userspace ACPI interpreter ( was RE: [ACPI] [RFC] dev_acpi: support for userspace access to acpi)

From: Theodore Ts'o
Date: Thu Oct 28 2004 - 10:47:09 EST


On Thu, Oct 28, 2004 at 01:37:52AM -0400, Len Brown wrote:
> One way to experiment with a user-mode ACPI interpreter would be to
> continue to use the kernel-mode interpreter for boot up , and cut over
> to the user-mode interpreter at /sbin/init. The kernel-mode interpreter
> could be sent the way of free_initmem() which is called just before
> /sbin/init is invoked.

Is there a significant advantage to doing having a user-mode ACPI
interpreter? The only advantage I can think of is that the ACPI
interpreter could now live in pageable memory. Are there any others?

- Ted
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