Re: [Xen-devel] HVMOP_guest_request_vm_event only works from guest in ring0

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 03.08.16 at 22:44, <andrew.cooper3@xxxxxxxxxx> wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -5194,8 +5194,14 @@ int hvm_do_hypercall(struct cpu_user_regs *regs)
>      switch ( mode )
>      {
>      case 8:       
> +        if ( eax == __HYPERVISOR_hvm_op &&
> +             regs->rdi == HVMOP_guest_request_vm_event )
> +            break;
>      case 4:
>      case 2:
> +        if ( eax == __HYPERVISOR_hvm_op &&
> +             regs->ebx == HVMOP_guest_request_vm_event )

I think you really mean _ebx here.

Jan


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