On Wed, Dec 14, 2022 at 01:39:54PM -0600, Michael Roth wrote: > This mainly indicates to KVM that it should expect all private guest > memory to be backed by private memslots. Ideally this would work > similarly for others archs, give or take a few additional flags, but > for now it's a simple boolean indicator for x86. ... > diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h > index c7e9d375a902..cc9424ccf9b2 100644 > --- a/include/uapi/linux/kvm.h > +++ b/include/uapi/linux/kvm.h > @@ -1219,6 +1219,7 @@ struct kvm_ppc_resize_hpt { > #define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223 > #define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224 > #define KVM_CAP_MEMORY_ATTRIBUTES 225 > +#define KVM_CAP_UNMAPPED_PRIVATE_MEM 240 Isn't this new cap supposed to be documented somewhere in Documentation/virt/kvm/api.rst ? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette