On Wed, Jul 8, 2015 at 10:39 AM, Jan Beulich wrote:
> >>> On 07.07.15 at 15:52, wrote:
> > --- a/xen/arch/x86/hvm/hvm.c
> > +++ b/xen/arch/x86/hvm/hvm.c
> > @@ -6431,6 +6431,17 @@ int hvm_debug_op(struct vcpu *v, int32_t op)
> > return rc;
> > }
> >
> > +void hvm_toggle_singlestep(struct v
>>> On 07.07.15 at 15:52, wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -6431,6 +6431,17 @@ int hvm_debug_op(struct vcpu *v, int32_t op)
> return rc;
> }
>
> +void hvm_toggle_singlestep(struct vcpu *v)
> +{
> +ASSERT(atomic_read(&v->pause_count));
> +
> +
Add an option to the vm_event response to toggle singlestepping on the vCPU.
This is only supported on Intel CPUs which have Monitor Trap Flag capability.
Singed-off-by: Tamas K Lengyel
Acked-by: Razvan Cojocaru
---
v3: Remove comment describing the limitation of the flag in the public header
