Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [patch] i386: remove IOPL check on task switch | Date | Fri, 3 Nov 2006 19:41:28 +0100 |
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> Nack. This is used for paravirt-ops kernels that use IOPL'd userspace. > Fixing it would require a fairly heavy penalty on the iret path, since > every single instruction there contributes to a critical region which > must have custom fixup code, or some other technique to provide > protection against interrupt re-entrancy. > > At least, let's discuss other potential solutions first - for now it is > harmless.
Ok I will drop the patch again
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