* Re: [Tee-dev] Persistent filesystem between reboots [not found] <=?utf-8?q?=3C010001770618d8b0-113c86a5-4a8d-4b41-85eb-1c4559a4a?= =?utf-8?q?889-000000=40email=2Eamazonses=2Ecom=3E?=> @ 2021-01-15 12:59 ` Joakim Bech 0 siblings, 0 replies; 2+ messages in thread From: Joakim Bech @ 2021-01-15 12:59 UTC (permalink / raw) To: op-tee [-- Attachment #1: Type: text/plain, Size: 1783 bytes --] On Fri, Jan 15, 2021 at 12:50:27PM +0000, Jens Wiklander via OP-TEE wrote: > Hi Kris, > > On Thu, Jan 14, 2021 at 1:37 PM Kris Kwiatkowski <kris@amongbytes.com> wrote: > > > > Hi, > > > > I'm using HiKey 960 for my research project. I've noticed that > > filesystem is not persistent between reboot. Is there a way > > to change it, so that any change to file in the /etc will be > > persistent? > > There's no easy way of doing that with our repo based builds I'm aware > of. The purpose of our (OP-TEE team) builds is in principle to be able > to execute xtest and other test programs. For this use case it's > actually an advantage to start from a clean state each time. In your > case I think you need to pick a suitable distribution and update it as > needed to support OP-TEE. It could be worth looking at Yocto as there > is some OP-TEE support already. > You can also give NFS a try, I tend to use that myself when playing with OP-TEE and Raspberry Pi3. I.e., I basically just untar the rootfs created by our setup into a folder that is exposed via NFS. Then in addition to that I have a couple of helper scripts that copies the files Jens mentioned below into that NFS folder when I need to update with changed files (TA's, OP-TEE libs etc). > Here's a short list of what's needed: > 1. TF-A compiled with OP-TEE support (dispatcher in BL31 and load > support in bl2) > 2. OP-TEE included in the FIP loaded by TF-A > 3. OP-TEE nodes in device tree > 4. OP-TEE driver enabled in the kernel (recent upstream kernel should > work in most cases) > 5. tee-supplicant and libteec.so installed in the file system > 6. tee-supplicant started > > With that in place you should be good to go. > > Cheers, > Jens -- Regards, Joakim ^ permalink raw reply [flat|nested] 2+ messages in thread
[parent not found: <711a871a-ca56-38c9-9134-c438d2c17878@amongbytes.com>]
* Re: [Tee-dev] Persistent filesystem between reboots [not found] <711a871a-ca56-38c9-9134-c438d2c17878@amongbytes.com> @ 2021-01-15 12:50 ` Jens Wiklander 0 siblings, 0 replies; 2+ messages in thread From: Jens Wiklander @ 2021-01-15 12:50 UTC (permalink / raw) To: op-tee [-- Attachment #1: Type: text/plain, Size: 1220 bytes --] Hi Kris, On Thu, Jan 14, 2021 at 1:37 PM Kris Kwiatkowski <kris@amongbytes.com> wrote: > > Hi, > > I'm using HiKey 960 for my research project. I've noticed that > filesystem is not persistent between reboot. Is there a way > to change it, so that any change to file in the /etc will be > persistent? There's no easy way of doing that with our repo based builds I'm aware of. The purpose of our (OP-TEE team) builds is in principle to be able to execute xtest and other test programs. For this use case it's actually an advantage to start from a clean state each time. In your case I think you need to pick a suitable distribution and update it as needed to support OP-TEE. It could be worth looking at Yocto as there is some OP-TEE support already. Here's a short list of what's needed: 1. TF-A compiled with OP-TEE support (dispatcher in BL31 and load support in bl2) 2. OP-TEE included in the FIP loaded by TF-A 3. OP-TEE nodes in device tree 4. OP-TEE driver enabled in the kernel (recent upstream kernel should work in most cases) 5. tee-supplicant and libteec.so installed in the file system 6. tee-supplicant started With that in place you should be good to go. Cheers, Jens ^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-01-15 12:59 ` [Tee-dev] Persistent filesystem between reboots Joakim Bech
[not found] <711a871a-ca56-38c9-9134-c438d2c17878@amongbytes.com>
2021-01-15 12:50 ` Jens Wiklander
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