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author | Tim Deegan <tim@xen.org> | 2012-03-08 16:40:05 +0000 |
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committer | Tim Deegan <tim@xen.org> | 2012-03-08 16:40:05 +0000 |
commit | 08d62198150bb50f4a0e19e5f96141c2394415f0 (patch) | |
tree | 3055b81042d900319cd4ba735fcf451a2408b9f3 /xen/include/public/domctl.h | |
parent | 9a0405c411fcec03d316342e900c75f417a21486 (diff) | |
download | xen-08d62198150bb50f4a0e19e5f96141c2394415f0.tar.gz xen-08d62198150bb50f4a0e19e5f96141c2394415f0.tar.bz2 xen-08d62198150bb50f4a0e19e5f96141c2394415f0.zip |
Tools: Remove shared page from mem_event/access/paging interfaces
Don't use the superfluous shared page, return the event channel directly as
part of the domctl struct, instead.
In-tree consumers (xenpaging, xen-access) updated. This is an ABI/API change,
so please voice any concerns.
Known pending issues:
- pager could die and its ring page could be used by some other process, yet
Xen retains the mapping to it.
- use a saner interface for the paging_load buffer.
This change also affects the x86/mm bits in the hypervisor that process the
mem_event setup domctl.
Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Acked-by: Tim Deegan <tim@xen.org>
Acked-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Tim Deegan <tim@xen.org>
Diffstat (limited to 'xen/include/public/domctl.h')
-rw-r--r-- | xen/include/public/domctl.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h index 3a4e9a734a..941acc3590 100644 --- a/xen/include/public/domctl.h +++ b/xen/include/public/domctl.h @@ -747,8 +747,8 @@ struct xen_domctl_mem_event_op { uint32_t op; /* XEN_DOMCTL_MEM_EVENT_OP_*_* */ uint32_t mode; /* XEN_DOMCTL_MEM_EVENT_OP_* */ - uint64_aligned_t shared_addr; /* IN: Virtual address of shared page */ - uint64_aligned_t ring_addr; /* IN: Virtual address of ring page */ + uint32_t port; /* OUT: event channel for ring */ + uint64_aligned_t ring_addr; /* IN: Virtual address of ring page */ }; typedef struct xen_domctl_mem_event_op xen_domctl_mem_event_op_t; DEFINE_XEN_GUEST_HANDLE(xen_domctl_mem_event_op_t); |