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Re: I/O permission control in OSKit-Mach
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From: |
Marcus Brinkmann |
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Subject: |
Re: I/O permission control in OSKit-Mach |
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Date: |
Tue, 16 Oct 2001 04:31:52 +0200 |
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User-agent: |
Mutt/1.3.22i |
On Tue, Oct 16, 2001 at 04:16:42AM +0200, Marcus Brinkmann wrote:
> /* Request a new port IO_PERM that represents the capability to access
> the I/O ports [FROM; TO] directly. MASTER_PORT is the master device port.
> The function returns KERN_INVALID_ARGUMENT if TARGET_TASK is not a task,
> or FROM is greater than TO. */
> routine i386_io_perm_create(
...KERN_INVALID_ARGUMENT if MASTER_PORT is not the device master port, or ...
> The task switching mechanism will only use one TSS for processors.
... one TSS per processor.
Earlier I wrote in a mail that the base TSS is copied for the secondary
CPU's TSSs. This is not correct.
Thanks,
Marcus
--
`Rhubarb is no Egyptian god.' Debian http://www.debian.org brinkmd@debian.org
Marcus Brinkmann GNU http://www.gnu.org marcus@gnu.org
Marcus.Brinkmann@ruhr-uni-bochum.de
http://www.marcus-brinkmann.de