Re: [PATCH v2] KVM: arm64: Add missing BTI instructions

[Oliver Upton]

On Thu, 6 Jul 2023 15:22:40 +0000, Mostafa Saleh wrote:
> Some bti instructions were missing from
> commit b53d4a272349 ("KVM: arm64: Use BTI for nvhe")
> 
> 1) kvm_host_psci_cpu_entry
> kvm_host_psci_cpu_entry is called from __kvm_hyp_init_cpu through "br"
> instruction as __kvm_hyp_init_cpu resides in idmap section while
> kvm_host_psci_cpu_entry is in hyp .text so the offset is larger than
> 128MB range covered by "b".
> Which means that this function should start with "bti j" instruction.
> 
> [...]

Applied to kvmarm/fixes. Sorry this took longer than expected, Mostafa. I
was hitting an unrelated issue with pKVM initialization on the only system
I have that supports BTI.

[1/1] KVM: arm64: Add missing BTI instructions
      https://git.kernel.org/kvmarm/kvmarm/c/dcf89d111199

--
Best,
Oliver