Hi Jerome,
On Tue, 28 Sept 2021 at 16:08, Jerome Forissier jerome@forissier.org wrote:
Hi,
I met an issue when testing OP-TEE with the latest released kernel (v5.14). The kernel won't boot when virtualization is enabled. More precisely, the boot hangs as the optee driver is probed. The last line on the console is:
[xxx] optee: probing for conduit method.
The issue can easily be reproduced in the QEMU OP-TEE environment as documented in [1]:
$ repo init -u https://github.com/OP-TEE/manifest.git -m qemu_v8.xml $ repo sync -j10 $ cd linux $ git fetch github --unshallow $ git checkout v5.14 $ cd ../build $ make -j2 toolchains $ make -j10 XEN_BOOT=y run
[Note, if you switch between XEN_BOOT=y and the default build, you need to "make arm-tf-clean"]
git bisect points at commit b5c10dd04b74 ("optee: Clear stale cache entries during initialization") and reverting this commit on top of v5.14 does resolve the issue.
Any idea what's wrong?
Yes, there was a small mistake in the mediator. My colleague already pushed the patch. It is at staging now:
http://xenbits.xen.org/gitweb/?p=xen.git%3Ba=commit%3Bh=1c3ed9c908732d19660f...
And will be backported to Xen 4.13+