[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] question about xenstore-chmod MAX_PERMS
2012/11/12 Ian Campbell <Ian.Campbell@xxxxxxxxxx> Dropping users list, please don't cross post. Sorry. Thanks for reminding. Â
Yes. Our customer plans to have some hypervisor running above 32 domUs
and needs to share common information between xen domU. He uses xenstore
capabilities: i.e. xenstore-write /local/domain/0/foo "8 CPU" Then he gives read access to domU with: xenstore-chmod /local/domain/0/foo r0 r2 r3 r4 r5 r6 r7 r9 r10 r11 r12 r13 r17 r18 r19 r20 r21 r22 With current MAX_PERM limitation, xenstore-chmod will report "Too many permissions specified. Maximum per invocation is 16". And serial commands: xenstore-chmod /local/domain/0/foo r0 xenstore-chmod /local/domain/0/foo r1 ... couldn't achieve that either. (result will be only the last command). Â I can't see anything obvious in the underlying library which would Sure, if there is nothing that prevents handling an arbitrary number of perms, it's better to handle it like arbitrary numbers rather than increasing MAX_PERMS. I was just not sure if there was some consideration to set a limitation. I'll modify code and test. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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