Re: NOVA: Capability selectors cause call of invalid portal

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Sorry,

I forgot to mention that the described limits of course apply only to the 32bit version of the kernel interface. For 64bit the limits are different.

Alex.

On 31.07.2012 09:33, Alexander Boettcher wrote:

the kernel does only support cap selectors up to 1 << 24 (which is 0x1000000), however selectors only up to 1 << 20 (which is 0x100000) as base can be mapped/delegated. (There are only 20 bit available for the base of the capability range descripter, see also the NOVA kernel specification, section - 4.3.4 Object Capability Range Descriptor).