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Andrew Cooper
75fc859985
With the Xen side of this interface (soon to be) fixed to return real sizes, userspace needs to be able to make the query. Introduce xenforeignmemory_resource_size() for the purpose, bumping the library minor version. Update both all osdep_xenforeignmemory_map_resource() implementations to understand size requests, skip the mmap() operation, and copy back the nr_frames field. For NetBSD, also fix up the ioctl() error path to issue an unmap(), which was overlooked by c/s 4a64e2bb39 "libs/foreignmemory: Implement on NetBSD". Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Paul Durrant <paul@xen.org> Acked-by: Wei Liu <wl@xen.org>
26 lines
459 B
Plaintext
26 lines
459 B
Plaintext
VERS_1.0 {
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global:
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xenforeignmemory_open;
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xenforeignmemory_close;
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xenforeignmemory_map;
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xenforeignmemory_unmap;
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local: *; /* Do not expose anything by default */
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};
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VERS_1.1 {
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global:
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xenforeignmemory_restrict;
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} VERS_1.0;
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VERS_1.2 {
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global:
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xenforeignmemory_map2;
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} VERS_1.1;
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VERS_1.3 {
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global:
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xenforeignmemory_map_resource;
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xenforeignmemory_unmap_resource;
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} VERS_1.2;
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VERS_1.4 {
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global:
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xenforeignmemory_resource_size;
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} VERS_1.3;
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