Re: [PATCH v6 29/33] KVM: s390: arm64: Implement required functions

[Janosch Frank]

On 8/12/26 5:36 PM, Steffen Eiden wrote:
> Implement the mostly trivial functions that the shared arm64 (kvm)
> code & headers oblige s390 to implement.
>
> Implement a very basic smccc handler that (non-compliantly) is just able
> to stop a vcpu.
>
> Signed-off-by: Steffen Eiden <seiden@xxxxxxxxxxxxx>
> ---
>   arch/s390/include/arm64/kvm_emulate.h | 130 ++++++++++++++++++++++++++
>   arch/s390/include/arm64/kvm_nested.h  |  11 +++
>   arch/s390/include/arm64/ptrace.h      |  11 +++
>   arch/s390/include/arm64/sysreg.h      |  13 +++
>   arch/s390/kvm/arm64/handle_exit.c     |  98 +++++++++++++++++++
>   arch/s390/kvm/arm64/inject_fault.c    |  21 +++++
>   6 files changed, 284 insertions(+)
>   create mode 100644 arch/s390/include/arm64/kvm_emulate.h
>   create mode 100644 arch/s390/include/arm64/kvm_nested.h
>   create mode 100644 arch/s390/include/arm64/ptrace.h
>   create mode 100644 arch/s390/include/arm64/sysreg.h
>   create mode 100644 arch/s390/kvm/arm64/handle_exit.c
>   create mode 100644 arch/s390/kvm/arm64/inject_fault.c

[...]

> +static __always_inline unsigned long kvm_vcpu_get_hfar(const struct kvm_vcpu *vcpu)
> +{
> +	return vcpu->arch.sae_block.hai.far_elz;
> +}
> +
> +static __always_inline phys_addr_t kvm_vcpu_get_fault_ipa(const struct kvm_vcpu *vcpu)
> +{
> +	return vcpu->arch.sae_block.hai.teid.addr * PAGE_SIZE;

gfn_to_gpa()?