IRC log for #htc-linux on 20130212

00:12.00*** join/#htc-linux a-st (~a-st@unaffiliated/a-st)
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03:14.26Zeusk_noobhands, I am about to die in a famine
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08:09.41noobhandsTop news
08:09.42noobhandsGoogle starts rolling out the Android 4.2.2 update
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11:58.56zeusk_hey fakker
12:36.31fakkerhai
12:40.33zeusk_http://www.bbc.co.uk/news/uk-england-21410565
12:40.47zeusk_epic guy, fought 4 guys with fish and chips in one hand :o
12:41.14fakkerwhile stabbed
12:41.15fakkeri know
12:41.19fakkerdidn't even drop a chip
12:41.26fakkerhe's the British Chuck Norris
12:41.40zeusk_the british rajnijanth
12:41.46zeusk_*rajnikanth
12:41.52fakkerwho
12:42.09zeusk_the indian chuck norris
12:43.16zeusk_i wonder who's the russian chuck norris
12:43.23fakkeryou wonder? it's Putin fool
12:43.57zeusk_nah
12:44.55zeusk_i bet even cotulla can beat putin in a fist fight
12:45.02zeusk_WITH fish and chips in one hand :P
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14:13.12*** join/#htc-linux detule (~d3tul3@unaffiliated/d3tul3)
14:27.16jonpryhrm
14:27.25jonpryso just no IOMMU
14:33.48detulei don't think it's necessary, you may need to increase some of your ion heaps
14:34.11jonpryi don't need this kernel to work very well
14:34.34jonpryno service, graphics, sound would be fine
14:36.02jonpryi have this other no good plan if rotator doesn't work
14:36.40*** join/#htc-linux stroughtonsmith (~steven@86.42.129.240)
14:36.41jonpryi think it's possible to mess with ebi config
14:36.51jonpryso for instance swap ebi0 and ebi1
14:38.34detuleoh ... that's something they put on purpose in there?
14:38.55jonpry?
14:39.41detuleis it like  a feature .... seems unsafe
14:40.20jonpryto swap ebi?
14:40.56detulesure wouldn't that allow you reads/writes where you otherwise wouldn't be able to
14:41.15jonpryit should allow complete defeat of trustzone
14:41.39jonprytotal security hole
14:41.44detuleyeah that
14:46.46jonprythey must have missed something somewhere
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15:14.25*** part/#htc-linux gauner1986 (~Adium@pd95b906c.dip0.t-ipconnect.de)
15:16.43jonprymsm_rotator_write(): AXI Bus Error, issuing SW_RESET
15:25.12detulehey jon not sure how relevant this is but you may want to check if CONFIG_STRICT_MEMORY_RWX and CONFIG_STRICT_DEVMEM are set
15:27.36jonprystrict devmem is not on
15:28.40jonprya bunch of stuff isn't working right with iommu off
15:41.52*** join/#htc-linux rajkosto (~rajkosto@cable-94-189-237-31.dynamic.sbb.rs)
15:59.48jonprya bunch of stuff isn't working right with iommu off
15:59.54jonprywhoops
16:14.10*** join/#htc-linux Cotulla (~myfakemai@109.205.253.11)
16:16.15Cotullaheyea
16:16.34Cotullajonpry ping
16:26.35fakkerstfu
16:27.49Cotullafu fakker
16:28.04Cotulladrop it
16:29.26fakkerdrop what
16:29.34fakkerdrop it like it's hawt
16:30.58Cotullajust drop
16:31.03Cotullawithout questions
16:31.42fakkerlike it's hawt
16:45.46Cotullano idea what is hawt
16:45.48CotullaI win
16:45.54Cotullame - 1 : 0 - fakker
16:46.04fakkerbecause you are stupid
16:46.12fakkerUK 1 - 0 Russia
16:57.02jonpryheya
16:57.14jonprybe back in a bit though. eating lunch
17:05.45Cotullagood eating
17:16.40jonpryhey Cotulla
17:17.11jonpryiommu keeps blowing up on me
17:19.33Cotullau didn't run code on Q6 ?
17:19.46jonprynot yet
17:19.59Cotullawhat are u doing now?
17:20.16jonpryi'm trying to bypass xpu with msm_rotator
17:20.55Cotullaanu luck?
17:21.13jonprywithout iommu i got AXI error
17:21.24jonpryhaven't got it to work with iommu yet
17:22.11Cotullahm but why
17:22.19Cotullait should be MPU error or XPU
17:22.22Cotullais there such one?
17:22.30Cotullaare u trying to access RAM>
17:22.31Cotulla?
17:22.34jonpryyes
17:22.57jonpryi think 8x60 rotator may not work without iommu
17:23.28jonpryi guess i could try unprotected memory
17:23.35Cotullayes
17:23.38Cotullabetter to start from it
17:27.14jonprymy next plan is to reprogram ebi
17:27.44jonprylike set ebi0 to 512mb with alias from 0xa0000000 <-> 0x8000000
17:28.17Cotullahow?
17:30.22jonprystill working on that
17:30.52Cotullait may not work . . . all masters are fetches
17:31.23jonpry?
17:32.14Cotullaall shared I think
17:32.43Cotullaexception in some other subsystem -> reset
17:33.46jonpryi think it can be done without crashing anything on apq at least
17:34.09Cotullaok try
17:34.42jonpryi don't know where ebi control is
17:34.57Cotullabut it should be also protected
17:35.08Cotullaif u said that 2880 0000 protected
17:35.19jonprymaybe they forgot
17:35.25Cotullaahh ^^
17:35.40jonpryor couldn't do it because HLOS needs to unmap bad ram
17:41.19jonpryhttps://www.codeaurora.org/gitweb/quic/le/?p=kernel/msm.git;a=blob;f=arch/arm/mach-msm/board-msm8x60.c;h=55f111740ae8de29740faa4eac159ed785f051dc;hb=633399aac338617ce7ae4bfb6b7a62c843115f20#l106
17:49.50Cotullahm
17:51.02Cotullabut EBI2 is static slow bus for kinda displays?
17:51.30jonpryyes it is not the ddr
17:52.38Cotullaso how it will work?
17:58.54jonprypatch hboot
17:59.54Cotullahm
18:08.57jonpryi got rotator to copy unprotected ram
18:09.06Cotullagood :)
18:10.42jonpryaxi bus error on protected ebi
18:10.48Cotulla:(
18:12.26jonpryaxi bus error on 0x28800000
18:13.52jonprythat camera thing maybe
18:13.56jonpryvfe or whatever
18:14.20jonprydetule had it writing all over the place
18:20.02Cotullahm
18:23.37jonpryfreedreno
18:23.56Cotullawhat
18:24.08jonpryhave you heard of it?
18:24.17Cotullakinda yes
18:24.36jonprythey can program the processor
18:24.38detulethinking about using that?
18:24.45jonpryto take over ebi
18:24.46detulesomeone else was talking to me about that
18:24.57Cotullait also can be limited
18:25.12Cotullabut try
18:29.37jonprysuch a hassle though
18:30.45jonpryis there someway to like bypass AXI?
18:30.48jonpryAHB?
18:31.16CotullaAHB is local I think
18:31.23detulei think everything runs on axi
18:32.00detulei see the display/kgsl/camera/usb etc all activating axi bus scaling handles
18:32.17jonpryah yes usb
18:32.30jonpryand doesn't sdcc have dma?
18:32.34Cotulladmov
19:02.27*** join/#htc-linux BabelO (~fcr@unaffiliated/babelo)
19:20.07jonpryCotulla, did you make any progress on v2?
19:20.51Cotullanot yet
19:20.53Cotullawas busy
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19:32.13jonpryseems like dmov has some kind of security
19:37.44Cotullayes
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20:09.20*** join/#htc-linux rajkosto (~rajkosto@wan.rajkonet.info)
20:13.31jonprywhat i need is http://forum.xda-developers.com/showpost.php?p=37542393&postcount=53
20:17.16detuleholy crap!
20:17.21detulethe motherload
20:17.50jonpryif only the download link worked
20:20.25Cotullaheh
20:20.42detuleyou can google them individually
20:20.54detulethis guy 80-N1622-21_B_MSM8960_CHIPSET_TRAINING_INTRODUCTION_AND_CHIPSET_OVERVIEW.pdf certainly shows up
20:21.20jonprythat one is public though
20:21.32jonpryi can't find any of the good ones
20:21.59Cotullathey have same quality as MSM7201 one
20:22.03jonprylike some 80-VB419-60_D_memory_system.pdf
20:22.12Cotullanothing really described :)
20:22.48jonpryneed motherload
20:25.55jonpryi should probably try to see if the touchpad has the same problems
21:05.33jonpryi am not sure how the image is being loaded but q6 image is not protected on apq8060
21:07.42Cotulla?
21:07.44Cotullau can write
21:07.47Cotullaand read
21:07.52jonpryat least read
21:08.04Cotullaread doesn't count I think
21:08.13Cotulla:P
21:08.15jonpryi think mpu is all or none
21:08.26Cotullatry to write
21:08.30jonpryworks
21:08.33jonpryand dspss
21:09.21Cotulla:)
21:11.44detulenice - let's copy PIL from that kernel
21:12.20jonpryi'm not convinced pil is loading it
21:12.20Cotullait's MSM8660
21:12.38jonprycould be SBL
21:13.10jonpryand i think it doesn't have trustzone
21:13.40Cotullanot sure
21:24.04jonpryit seems that touchpad q6 image is not even signed
21:27.40jonprydetule, i think we might have to develop hexagon-linux on touchpad
21:31.16Cotullahehe
21:31.22Cotullais there V3
21:31.33jonprynot sure
21:33.12Cotullain MSM8660 it should be different
21:33.43jonprynot v4?
21:33.53Cotullayes looks like v3
21:36.59jonpryhmm
21:41.04jonprytrustzone sucks
21:41.36Cotullabut it's not really TZ
21:41.42Cotullajust common platform security
21:42.43jonpryi don't see it that way
21:43.00Cotullaokay ;)
21:43.06jonpryit's like a hypervisor on the arm
21:43.20jonprythat can verify what arm is doing
21:43.24Cotullayes
21:43.31CotullaI know
21:43.59jonpryi don't like it
21:44.05Cotulla:)
21:47.59jonprydo you think it is possible to run code on 8960 dsp?
21:48.19Cotullaif everything will be hacked I think yes
21:53.45Cotullabut I have small knowledge about v3/8660 I would not able to help if needed
21:55.18jonpryi think v3 is like v2 with some new instructions
21:55.48Cotullawell
21:55.52Cotullain GNU/GCC
21:55.56Cotullathere is list with marks
21:56.06Cotullaabout version
21:57.34jonpryi'm reading some of the trustzone docs
21:57.52jonpryit specifically mentions that securing the gpu was going to be extra difficult
21:58.05Cotullawhy?
21:58.49Cotullathey are talking about one system case I think
21:58.57Cotullato protect kernel mode from user mode
21:59.04jonprybecause they virtualize dma hardware. so addresses can be checked
21:59.09jonprybut that is too slow for gpu
21:59.14Cotullait's easy to prevent access to another subsystem
21:59.15jonpryand too complicated
21:59.17Cotullaon AXI bus
21:59.34Cotullau can try to use WriteMem LEIA command
22:00.01jonprywhat is leia?
22:04.37*** join/#htc-linux [Delenn] (~myfakemai@109.205.253.11)
22:04.46[Delenn]laag
22:05.00[Delenn]so how is ur sub jonpry?
22:05.37[Delenn]apt what is leia ?
22:05.37apti guess leia is Adreno 220/225
22:06.14jonprythe apq8064 is adreno 3xx
22:06.31[Delenn]oh shit
22:06.33jonpryi almost sank it yesterday
22:06.58[Delenn]apt what is adreno 3xx?
22:06.59apt[Delenn]: I think you lost me on that one
22:07.00jonprythe engine quit in the middle of a voyage
22:07.07[Delenn]apt what is "adreno 3xx"?
22:07.08apt[Delenn]: I think you lost me on that one
22:07.20[Delenn]haha
22:07.27[Delenn]did u able to start it again?
22:07.32jonpryno
22:07.42[Delenn]how u moved it to land?
22:07.58jonprytow
22:09.00[Delenn]at least it better than this? http://paperpaper.ru/wp-content/uploads/2013/02/kpKh1JbNsCY-1.jpg
22:09.45jonpryi can't even tell what that is
22:09.51[Delenn]? :O
22:09.52[Delenn]really
22:09.53jonprythe engine fell out?
22:09.54[Delenn]yea
22:09.55[Delenn]:D
22:10.02jonpryoh wow
22:10.02[Delenn]imagine
22:10.48jonpryin russia you move the engine
22:10.55[Delenn]lol
22:11.01[Delenn]yea
22:13.14arrrghhhIn Soviet Russia, there is no internal combustion engines.  Only external.
22:13.43[Delenn]:D
22:22.40*** join/#htc-linux Cotulla (~myfakemai@109.205.253.11)
22:22.44CotullaDelenn, bail out!
22:22.47[Delenn]okay
22:22.48*** part/#htc-linux [Delenn] (~myfakemai@109.205.253.11)
22:28.55Cotullalol
22:28.56Cotullahttp://4.bp.blogspot.com/-ZGrzUiZi1DU/T1ndhZFXQ5I/AAAAAAAAXv8/ZhhVy96tkP0/s1600/76-No-Way-Out.jpg
22:28.58Cotulla:D
22:43.33Cotullatime to go bb
22:43.33*** part/#htc-linux Cotulla (~myfakemai@109.205.253.11)

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