On 11/19/21 14:47, Chao Peng wrote:
For fd-based memslot store the file references for shared fd and the
private fd (if any) in the memslot structure. Since there is no 'hva'
concept we cannot call hva_to_pfn() to get a pfn, instead kvm_memfd_ops
is added to get_pfn/put_pfn from the memory backing stores that provide
these fds.
Signed-off-by: Yu Zhang<yu.c.zh...@linux.intel.com>
Signed-off-by: Chao Peng<chao.p.p...@linux.intel.com>
---
What about kvm_read/write_guest? Maybe the proposal which kept
userspace_addr for the shared fd is more doable (it would be great to
ultimately remove the mandatory userspace mapping for the shared fd, but
I think KVM is not quite ready for that).
Paolo
