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On Wednesday 25 September 2002 21:35, Moritz Schulte wrote: |
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> Paul de Vrieze <pauldv@××××××.nl> writes: |
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> > Well the kernel is that police agent. The kernel "polices" a variety |
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> > of devices including: [...] |
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> |
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> Just as a side note: what you describe is how it was done in Unix; |
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> it's not the only way. For instance, the L4 microkernel contains |
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> almost no hardware drivers at all. Hardware drivers have to be |
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> implemented as L4 tasks, which do not run in kernel space. One of the |
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> main jobs of the kernel is than to translate interrupts into IPC |
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> messages, which are sent to the user space hardware drivers. |
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> |
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> moritz |
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The thing is, even when using a micro kernel, the microkernel grants EXCLUSIVE |
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access to a hardware driver. So the kernel in the broad sense of the word |
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(including the userspace drivers) can still not be replaced. |
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Paul |
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-- |
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Paul de Vrieze |
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Junior Researcher |
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Mail: pauldv@××××××.nl |
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Homepage: http://www.devrieze.net |
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