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Re: [Qemu-devel] seccomp: remove unused syscalls - for 1.6

From: Eduardo Otubo
Subject: Re: [Qemu-devel] seccomp: remove unused syscalls - for 1.6
Date: Thu, 18 Jul 2013 13:35:47 -0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130307 Thunderbird/17.0.3

On 07/18/2013 01:28 PM, Anthony Liguori wrote:
Eduardo Otubo <address@hidden> writes:

Hello all,

In this small patch series I basically:

Cover letter should be marked [PATCH 0/2].  Otherwise it defeats

Would like to see a Reviewed-by from someone before applying this.

I'm running some tests with qemu && xen, I'll post a v3 by the end of the day. I'll format the cover letter in the correct way next time.



Anthony Liguori

   v2 update:
   - set libseccomp 2.1.0 as requirement on configure script.
   - removed setrlimit and added sendfile64 to the whitelist.

        1) Remove the ifdef's for the (not so) new libseccomp version that does 
   best effort and translates x86_32 syscalls into x86_64 when possible.

   2) Remove unused syscalls on the seccomp whitelist. For that removal, I've 
   running several instances of Qemu using a script written on top of
   virt-test[0]. After some weeks testing I could come up with this small list,
   and safely remove them without breaking anything.

[0] - https://github.com/autotest/virt-test/wiki

Eduardo Otubo
IBM Linux Technology Center

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