On 12.04.17 19:36, Pratyush Anand wrote: > Hi Denys, > > On Wednesday 12 April 2017 08:05 PM, Denys Zagorui wrote: >> Hello, Pratyush >> Thanks for your reply. >> >> Could you describe how i can find out wich enable method used. One more >> things, i made this tests on qemu, and it works. Logs attached. >> > > From your board log (log_for_com ): > > PSCI: PSCI does not exist > > > and then > > [ 60.561877] Can't kexec: CPUs are stuck in the kernel. > > Above message is coming from machine_kexec_prepare() when > cpus_are_stuck_in_kernel() returns true. See, its implementation. It > will return true if number of possible cpus is > 1 and cpu_die() is not > implemented. > > You can boot your first kernel with nr_cpus=1 in kernel cmdline and > then you should be able to kexec to the second kernel from there. > > However, it can not be a solution. You should update your firmware with > psci implementation. > > For the time being you can have spin-table work aroudn like this [1], > but please note that spin-table is discouraged upstream [2]. > > [1] > https://github.com/pratyushanand/linux/commit/a50e98635b7257c101f02f7ac488a4cb04187f6d > > [2] https://patchwork.kernel.org/patch/7873571/ > > > From your qemu log: > > [ 0.000000] psci: probing for conduit method from DT. > [ 0.000000] psci: PSCIv0.2 detected in firmware. > [ 0.000000] psci: Using standard PSCI v0.2 function IDs > [ 0.000000] psci: Trusted OS migration not required > > > and so it works :-) > > > ~Pratyush Hi Pratyush Both solutions works. Thanks. It's temporary solution, i will contact with NXP support team Best Regards, Denys -- Denys Zagorui GlobalLogic Kyiv, 03038, Protasov Business Park, N.Grinchenka, 2/1 M +38.067.317.30.93 www.globallogic.com http://www.globallogic.com/email_disclaimer.txt
