Re: Is kexec supported in QEMU for ARM64 (qemu-system-aarch64) with arm-trusted-firmware, optee, and u-boot.

[Lakshmi Ramasubramanian]

On 10/1/19 9:30 AM, Ard Biesheuvel wrote:

> kexec is a linux concept, so whether it is supported should not depend
> on the secure world firmware or the underlying host.

I agree Ard.
When I don't use ATF I am able to do kexec in QEMU and successfully boot 
into the new kernel.
Is the following expected?

When I execute kexec ("kexec -l <kernel>", followed by "kexec -e") I hit 
the following assert in ATF (in the file
arm-trusted-firmware/plat/qemu/qemu_pm.c)

/*******************************************************************************
  * Platform handler called when a power domain is about to be turned
  * off. The target_state encodes the power state that each level should
  * transition to.
******************************************************************************/
void qemu_pwr_domain_off(const psci_power_state_t *target_state)
{
     assert(0);
}

Thanks,
 -lakshmi