Re: [kvm-devel] [RFC][PATCH 2/4] kvm: Arch-specifc KVM_EXIT_DEBUG payload

[Avi Kivity <avi@qumranet.com>]

Jan Kiszka wrote:
> This adds an arch field to kvm_run.debug, the payload that is returned
> to user space on KVM_EXIT_DEBUG guest exits. For x86, this field is now
> supposed to report the precise debug exception (#DB or #BP) and the
> current state of the debug registers (the latter is not yet
> implemented).
>
> Index: b/include/asm-x86/kvm.h
> ===================================================================
> --- a/include/asm-x86/kvm.h
> +++ b/include/asm-x86/kvm.h
> @@ -230,4 +230,9 @@ struct kvm_pit_state {
>  #define KVM_TRC_APIC_ACCESS      (KVM_TRC_HANDLER + 0x14)
>  #define KVM_TRC_TDP_FAULT        (KVM_TRC_HANDLER + 0x15)
>  
> +struct kvm_debug_exit_arch {
> +	__u32 exception;
> +	__u64 dr[8];
> +};
> +
>   

Need empty structures for non-x86.

Need a KVM_CAP_ to indicate presence of this feature.

-- 
error compiling committee.c: too many arguments to function