On 9/26/19 8:17 AM, Lakshmi Ramasubramanian wrote:

The following commit for ARM Trusted Firmware for QEMU virt ARMv8-A
is almost 3 years old

https://salsa.debian.org/debian/atf-allwinner/commit/b6b671c4ac4bd5595306863225bb3bece1e6135c

Current limitations:
* Only cold boot is supported
* No build instructions for QEMU_EFI.fd and rootfs-arm64.cpio.gz
* No instructions for how to load a BL32 (Secure Payload)

So looks like only cold boot is supported (no kexec support)
Is this correct?

When I execute kexec ("kexec -l <kernel>", followed by "kexec -e") I hit the following assert (in 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);
}

Is kexec supported in ARM64 QEMU (qemu-system-aarch64) -
using arm-trusted-firmware, optee, and u-boot?

Thanks,
  -lakshmi


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