[PATCH] KVM: arm64: Prevent vcpu_has_ptrauth from generating OOL functions

[Zenghui Yu]

Hi Nathan,

On 2020/7/23 10:51, Nathan Chancellor wrote:
> For the future, is there an easy way to tell which type of system I am
> using (nVHE or VHE)?

afaict the easiest way is looking at the kernel log and you will find
something like "{VHE,Hyp} mode initialized successfully". I can get the
following message on my *VHE* box:

  # cat /var/log/dmesg | grep kvm
[    4.896295] kvm [1]: IPA Size Limit: 48bits
[    4.896339] [...]
[    4.899407] kvm [1]: VHE mode initialized successfully
                         ^^^

Have a look at kvm_arch_init(). With VHE, the host kernel is running at
EL2 (aka Hyp mode).


Thanks,
Zenghui