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Date: Thu, 25 Jun 2009 16:21:11 +0530
Message-ID: <abe8a1fd0906250351y1aadc153m9f52f65a5860a2ca@mail.gmail.com>
Subject: Re: 85xx Address space query
From: kernel mailz <kernelmailz@googlemail.com>
To: Scott Wood <scottwood@freescale.com>
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So this means
when kernel gets interrupted by app which may be in PID=5 (say)
kernel translations for PID=0 remain valid ?
I am not able to follow Scott

-TZ

On Thu, Jun 25, 2009 at 4:22 AM, Scott Wood<scottwood@freescale.com> wrote:
> kernel mailz wrote:
>>
>> But If the app was running with PID=1, interrupt occurs, kernel code
>> gets executed in PID=1, how does the kernel handle this ? and goes
>> back to PID=0, since its translations are all in PID=0
>
> PID 0 is special, it's mappings are present regardless of the value of the
> PID register.
>
> -Scott
>