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Not sure how it got there...
Coverity-ID: 1056196
This is CVE-2013-4370 / XSA-69
Signed-off-by: Matthew Daley <mattjd@gmail.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
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Some renaming to correct the PCI and SBDF terminology.
No functional change.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Changeset 23861:ec7c81fbe0de alters the SBDF encoding expected by the
DOMCTL_{de,}assign_device hypercalls.
While it updates libxl, libxc and the python bindings, the ocaml
bindings got missed. As a result, any attempt to use PCI Passthrough
with Xen-4.2 and later will fail.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Since libxc is re-entrant, there is no need for the OCaml bindings to
prevent more than one thread from entering libxc concurrently.
Previously, the OCaml bindings had prevented re-entrancy by not using
caml_{enter,leave}_blocking_section in the C stubs. The absence of
these calls meant that the global lock remained held during
hypercalls. This caused multi-threaded applications to completely lock
up during long-running hypercalls.
Calls to these functions were present but commented out in the OCaml
bindings some years ago when libxc was not fully re-entrant.
Instead, we now do call caml_{enter,leave}_blocking_section in all the
places it used to be commented out, meaning that the global lock is
released during those hypercalls. We also no longer assert the
XC_OPENFLAG_NON_REENTRANT flag when calling xc_interface_open because
the caller no longer does re-entrancy prevention at those places.
This patch has now gone through a XenRT nightly test; no problems were
observed.
Signed-off-by: Jonathan Davies <jonathan.davies@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
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Add a new field 'max_nr_cpus' to the physinfo type in the ocaml xc bindings
Signed-off-by: Zheng Li <zheng.li@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
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The bit bugs are in ocaml vcpu affinity calls, and the off-by-one
error is in the ocaml console ring code
Signed-off-by: Zheng Li <zheng.li@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
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ocamlfind does not support namespaces, so to avoid
name clashes the module names have become longer.
Additionally, the xenstore and xenbus subdirs, which
contain several modules each, have been packed into
toplevel Xenstore and Xenbus modules.
xb becomes xenbus, xc becomes xenctrl, xl becomes xenlight,
xs becomes xenstore, eventchn becomes xeneventchn and
mmap becomes xenmmap.
[ Patch modified from that submitted, to update the .hgignore, and to
cope with intervening changes to mmap_stubs.c -iwj ]
Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
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