Thanks a lot Tyler,
Cool that is precisely what I was looking for. Will give a try.
I am hoping that I can specify both fast models parameters and having
interactive boot args specified together in a job. Will give it a go and let
you know.
Thanks
Basil Eljuse...
From: Tyler Baker [mailto:tyler.ba...@linaro.org]
Sent: 06 November 2013 20:46
To: Basil Eljuse
Cc: Linaro Validation
Subject: Re: [Linaro-validation] What is the best way to configure fast model
parameters...
Hi Basil,
On 6 November 2013 12:28, Basil Eljuse
<basil.elj...@arm.com<mailto:basil.elj...@arm.com>> wrote:
Hello,
We have got now some model instances up in our local lava instance.
What I would like to find out is 'how best to manipulate the model parameters'.
>From my logs I can see
<LAVA_DISPATCHER>2013-11-06 06:27:33 PM INFO: launching fastmodel with command
u'sudo -u www-data ARMLMD_LICENSE_FILE="<license-server-loc>"
/fastmodels/current/FVP_Base_Cortex-A57x4-A53x4 -C
bp.virtioblockdevice.image_path=/srv/lava/instances/production/var/www/lava-server/images/tmppF_EKI/sd.img
-C bp.secure_memory=0 -C bp.smsc_91c111.mac_address="02:90:00:03:00:06" -C
pctl.startup=0.0.0.0 -C bp.pl011_uart0.untimed_fifos=1 -C
bp.flashloader0.fname=/srv/lava/instances/production/var/www/lava-server/images/tmppF_EKI/uefi_fvp-base.bin
-C
bp.secureflashloader.fname=/srv/lava/instances/production/var/www/lava-server/images/tmppF_EKI/bl1.bin
-C bp.smsc_91c111.enabled=true -C bp.hostbridge.interfaceName="armv8_06" -C
cache_state_modelled=0'
Also from
http://git.linaro.org/gitweb?p=lava/lava-dispatcher.git;a=blob;f=lava_dispatcher/default-config/lava-dispatcher/device-types/rtsm_fvp_base_cortex-a57x4-a53x4.conf;h=69d37721856e6428fbcfbc1b575463285078229f;hb=HEAD
I can see some of these parameters defined at the above link.
Q1. Is there an easy way to have any of these parameters, for example
cache_state_modelled , modified via the json file itself, which define the job?
I can see from one of Linaro's json files has the following entry.
"command": "boot_linaro_image",
"parameters": {
"options": [
"boot_cmds=boot_cmds_oe"
]
}
You can modify any of the parameters in the boot_options stanza. Here is an
example I have created showing how to use set the cache_modeled_state:
http://community.validation.linaro.org/scheduler/job/2637/definition
Is this it correct for me to assume that this corresponds to the kernel command
line arguments passed via UEFI?
- Arguments: console=ttyAMA0 earlyprintk=pl011,0x1c090000 debug user_debug=31
loglevel=9 root=/dev/vda2
Can anyone please confirm?
The kernel arguments are hard coded into the UEFI configuration. You can
override these values with interactive boot commands. Here is an example of
this on an older model:
http://community.validation.linaro.org/scheduler/job/1552/definition
The new models have slightly different menu options so you will have to modify
the send / expect logic to handle these differences.
On a related theme, I can see the following being defined in the dispatched
device_type def
simulator_dtb = fvp-base-gicv2-psci.dtb
and then this getting subsequently used in the UEFI fdt argument
- FDT: VenHw(C5B9C74A-6D72-4719-99AB-C59F199091EB)/fvp-base-gicv2-psci.dtb
Q2. Since the hardware pack do have additionally fvp-base-gicv2legacy-psci.dtb
and fvp-base-gicv3-psci.dtb, how can I specify the UEFI to pick the alternate
dtbs during the run? What is the easiest option?
Again this binary name is hard coded in the UEFI configuration. You will have
to use interactive boot commands to override these values.
Thanks
Basil Eljuse...
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Hope that helps!
--
Tyler Baker
Technical Architect, LAVA
Linaro.org | Open source software for ARM SoCs
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ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered
in England & Wales, Company No: 2557590
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