On Fri, Mar 08, 2019 at 04:09:56PM -0300, Fabiano Rosas wrote:
> David Gibson writes:
>
> >> +/* Whether the KVM_SET_GUEST_DEBUG ioctl supports single stepping */
> >> +int kvm_has_guestdbg_singlestep(void)
> >> +{
> >> +/* return kvm_check_extension(kvm_state, KVM_CAP_GUEST_DEBUG_SSTEP);
>
David Gibson writes:
>> +/* Whether the KVM_SET_GUEST_DEBUG ioctl supports single stepping */
>> +int kvm_has_guestdbg_singlestep(void)
>> +{
>> +/* return kvm_check_extension(kvm_state, KVM_CAP_GUEST_DEBUG_SSTEP); */
>
> I don't see a KVM_CAP_GUEST_DEBUG_SSTEP in either the qemu or kernel
>
David Gibson writes:
>> +/* Whether the KVM_SET_GUEST_DEBUG ioctl supports single stepping */
>> +int kvm_has_guestdbg_singlestep(void)
>> +{
>> +/* return kvm_check_extension(kvm_state, KVM_CAP_GUEST_DEBUG_SSTEP); */
>
> I don't see a KVM_CAP_GUEST_DEBUG_SSTEP in either the qemu or kernel
>
On Thu, Feb 28, 2019 at 07:57:56PM -0300, Fabiano Rosas wrote:
> For single stepping (via KVM) of a guest vcpu to work, KVM needs not
> only to support the SET_GUEST_DEBUG ioctl but to also recognize the
> KVM_GUESTDBG_SINGLESTEP bit in the control field of the
> kvm_guest_debug struct.
>
> This p
For single stepping (via KVM) of a guest vcpu to work, KVM needs not
only to support the SET_GUEST_DEBUG ioctl but to also recognize the
KVM_GUESTDBG_SINGLESTEP bit in the control field of the
kvm_guest_debug struct.
This patch adds support for querying the single step capability so
that QEMU can
