Date: Fri, 11 Jul 2014 15:52:18 +0200 From: Oliver Pinter <oliver.pntr@gmail.com> To: soc-status@freebsd.org Cc: gavin@freebsd.org Subject: Re: [intel smap, kpatch] weekly report #6 and #7 Message-ID: <CAPjTQNEKxggnMK1bW-kQ5is-6PGBwnSjTC7%2BFxwH%2Bx5e9ezdaQ@mail.gmail.com>
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Hi All! At previous week I started to design a kernel patching framework and I have a little holiday. At this week I mostly finished the design, and started to implement the selfpatching framework. Next week I plan to finish the implementation of the framework, and after that migrate the SMAP stuff to use them. The current status can you found on my wiki site. On 6/28/14, Oliver Pinter <oliver.pntr@gmail.com> wrote: > This week I started the second phase of GSoC. In this design a > run-time kernel and module patching framework. This means that the > kernel able to dynamically change their code run-time. > > In second phase's first week I investigated where must I implement the > functionality and which kernel APIs should I use. > > You can found the current status in my wiki page. > > On 6/21/14, Oliver Pinter <oliver.pntr@gmail.com> wrote: >> Hi! >> >> At this week i am hunting a triple fault during the boot. This caused >> by a compiler error, when CPUTYPE in /etc/make.conf was set to >> core-avx2, after removing this the first phase was done. All of my >> test running fine and the system are stable. Originally only amd64 >> implementation required, but I added to i386 too - but the later not >> yet tested. >> >> In next phase I design a proper way how to patch kernel and modules at >> boot and run-time. >> >> What's done: >> * SMAP for amd64 >> * test SMAP for amd64 >> * build framework >> * VM creation >> * SMAP for i386 (not tested) >> * some other tool, that make my life easier >> >> The current status can you find on my wiki page. >> >> On 6/15/14, Oliver Pinter <oliver.pntr@gmail.com> wrote: >>> Hi all! >>> >>> In the last week I was mostly done with implementation, as you can see >>> on my wiki page. The most of i386 commits are not tested because a >>> cross-build problem on amd64 system. >>> Other resolvable problem are on amd64 system, where the machine triple >>> faulted, because wrong assembler statements generated with the >>> compiler. I'm deep in debugging both of two case. This issue are too >>> in my wiki page under this section: >>> https://wiki.freebsd.org/SummerOfCode2014/IntelSMAPandKernelPatching#notes >>> >>> I have at this week my last exam at Thursday. After that I'm focusing >>> fully on GSoC. >>> >>> On 6/6/14, Oliver Pinter <oliver.pntr@gmail.com> wrote: >>>> Hi all! >>>> >>>> Previous week I started to work on SMAP for amd64 and i386. For amd64 >>>> many parts are in good state. The codes currently are only compile >>>> tested, at next week I create a VM, and create run-time tests. For >>>> i386 started the work on yesterday. >>>> All of my status can be found on my wiki page. >>>> >>>> What's done, but not tested in this week: >>>> * {amd64,i386} trap handler >>>> * amd64 initialization >>>> * {amd64,i386} identification >>>> * {amd64,i386} exceptions >>>> * amd64 pmap changes >>>> * amd64 support.S changes >>>> * amd64 ia32 compat exceptions >>>> * i386 ddb extension >>>> >>>> At next week I plan to finish all of amd64 things, and most of i386 >>>> things, and begin to test; start to design a proper way to create >>>> kpatch and/or ifunc like things. >>>> >>>> >>>> svn: http://svnweb.freebsd.org/socsvn/soc2014/op/ >>>> git: https://github.com/opntr/opBSD (branches: >>>> op/gsoc2014/{master,smap,kpatch} ) >>>> wiki: >>>> https://wiki.freebsd.org/SummerOfCode2014/IntelSMAPandKernelPatching >>>> >>>> >>>> On 5/29/14, Oliver Pinter <oliver.pntr@gmail.com> wrote: >>>>> Hi all! >>>>> >>>>> I'm working on Intel SMAP technology in first half of GSoC. >>>>> At first week I investigated in SMAP technology and relevant FreeBSD >>>>> codes, whats changed since my Bsc thesis. >>>>> >>>>> I implemented a vulnerable kernel module and PoC to test allowed and >>>>> not allowed memory access scenario. Created my wiki page, svn repo, >>>>> and git repo. >>>>> >>>>> svn: http://svnweb.freebsd.org/socsvn/soc2014/op/ >>>>> git: https://github.com/opntr/opBSD (branches: >>>>> op/gsoc2014/{master,smap,kpatch} ) >>>>> wiki: >>>>> https://wiki.freebsd.org/SummerOfCode2014/IntelSMAPandKernelPatching >>>>> test-cases: >>>>> http://svnweb.freebsd.org/socsvn/soc2014/op/tests/smap-tester/ >>>>> >>>>> Good days, >>>>> Oliver >>>>> >>>> >>> >> >
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