• Gregory Haskins's avatar
    KVM: make io_bus interface more robust · 090b7aff
    Gregory Haskins authored
    Today kvm_io_bus_regsiter_dev() returns void and will internally BUG_ON
    if it fails.  We want to create dynamic MMIO/PIO entries driven from
    userspace later in the series, so we need to enhance the code to be more
    robust with the following changes:
    
       1) Add a return value to the registration function
       2) Fix up all the callsites to check the return code, handle any
          failures, and percolate the error up to the caller.
       3) Add an unregister function that collapses holes in the array
    Signed-off-by: default avatarGregory Haskins <ghaskins@novell.com>
    Acked-by: default avatarMichael S. Tsirkin <mst@redhat.com>
    Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
    090b7aff
coalesced_mmio.c 3.52 KB