| Message ID | 1457322077-26640-2-git-send-email-aik@ozlabs.ru (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Paul Mackerras |
| Headers | show |
On Mon, Mar 07, 2016 at 02:41:09PM +1100, Alexey Kardashevskiy wrote: > This adds a capability number for in-kernel support for VFIO on > SPAPR platform. > > The capability will tell the user space whether in-kernel handlers of > H_PUT_TCE can handle VFIO-targeted requests or not. If not, the user space > must not attempt allocating a TCE table in the host kernel via > the KVM_CREATE_SPAPR_TCE KVM ioctl because in that case TCE requests > will not be passed to the user space which is desired action in > the situation like that. > > Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> > --- > include/uapi/linux/kvm.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h > index c251f06..080ffbf 100644 > --- a/include/uapi/linux/kvm.h > +++ b/include/uapi/linux/kvm.h > @@ -863,6 +863,7 @@ struct kvm_ppc_smmu_info { > #define KVM_CAP_HYPERV_SYNIC 123 > #define KVM_CAP_S390_RI 124 > #define KVM_CAP_SPAPR_TCE_64 125 > +#define KVM_CAP_SPAPR_TCE_VFIO 126 > > #ifdef KVM_CAP_IRQ_ROUTING >
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index c251f06..080ffbf 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -863,6 +863,7 @@ struct kvm_ppc_smmu_info { #define KVM_CAP_HYPERV_SYNIC 123 #define KVM_CAP_S390_RI 124 #define KVM_CAP_SPAPR_TCE_64 125 +#define KVM_CAP_SPAPR_TCE_VFIO 126 #ifdef KVM_CAP_IRQ_ROUTING
This adds a capability number for in-kernel support for VFIO on SPAPR platform. The capability will tell the user space whether in-kernel handlers of H_PUT_TCE can handle VFIO-targeted requests or not. If not, the user space must not attempt allocating a TCE table in the host kernel via the KVM_CREATE_SPAPR_TCE KVM ioctl because in that case TCE requests will not be passed to the user space which is desired action in the situation like that. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> --- include/uapi/linux/kvm.h | 1 + 1 file changed, 1 insertion(+)