I have successfully moved from EL3 to EL2. After doing some initialization I am trying to move from EL2 into EL1 with a very simple guest image. My process looks like:
- Map EL1 memory into EL2
- Copy EL1 image to RAM
- Initialize sctlr_el1 = 0x30d00800
What are the necessary preconditions to load a guest into EL1 from EL2?
- 8 months ago
- Processors
- Cortex-A / A-Profile forum
how to return from exception generated by SMC instruction
Hi,
I am experimenting execution level switching on A53. I go from EL3->El2, then call SMC instruction to return to EL3. As soon as SMC instruction is executed, the processor enters EL3 mode and an exception is generated.
I have written an exception…
- over 3 years ago
- Processors
- Cortex-A / A-Profile forum
Virtual exception in Nested Virtualization ARMv8.3
Hi all,
Nested virtualization is the ability to run a virtual machine inside another virtual machine. In other words, it’s about running a hypervisor (the guest hypervisor) on top of another hypervisor (the host hypervisor).
Reference: https://developer…
- over 1 year ago
- Open Source Software and Platforms
- Arm Development Platforms forum
Armv8-A architecture: 2016 additions
The Armv8-A architecture continues to evolve, with the additions developed through 2016 collectively known as Armv8.3-A. Grouping enhancements in this manner helps the ecosystem manage tools and software support alongside the large numbers of Armv8-A…
- over 3 years ago
- Processors
- Processors blog