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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Previously all callers had a containing object with a destructor that
could be used to trigger cleanup of the IORange objects (typically
just freeing the containing object), but a forthcoming memory API
change doesn't fit this pattern. Rather than setting up a new global
table, extend the ioport system to support destructors.
Signed-off-by: Avi Kivity <avi@redhat.com>
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The current ioport callbacks are not type-safe, in that they accept an "opaque"
pointer as an argument whose type must match the argument to the registration
function; this is not checked by the compiler.
This patch adds an alternative that is type-safe. Instead of an opaque
argument, both registation and the callback use a new IOPort type. The
callback then uses container_of() to access its main structures.
Currently the old and new methods exist side by side; once the old way is gone,
we can also save a bunch of memory since the new method requires one pointer
per ioport instead of 6.
Acked-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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