arm: Support hypercall_create_continuation for multicall

Multicall for ARM has been supported since commit f0dbdc6 "xen: arm: fully
implement multicall interface.". Although, if an hypercall in multicall
requires preemption, it will crash the host:

(XEN) Xen BUG at domain.c:347
(XEN) ----[ Xen-4.7-unstable  arm64  debug=y  Tainted:    C ]----
[...]
(XEN) Xen call trace:
(XEN)    [<00000000002420cc>] hypercall_create_continuation+0x64/0x380 (PC)
(XEN)    [<0000000000217274>] do_memory_op+0x1b00/0x2334 (LR)
(XEN)    [<0000000000250d2c>] do_multicall_call+0x114/0x124
(XEN)    [<0000000000217ff0>] do_multicall+0x17c/0x23c
(XEN)    [<000000000024f97c>] do_trap_hypercall+0x90/0x12c
(XEN)    [<0000000000251ca8>] do_trap_hypervisor+0xd2c/0x1ba4
(XEN)    [<00000000002582cc>] guest_sync+0x88/0xb8
(XEN)
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 5:
(XEN) Xen BUG at domain.c:347
(XEN) ****************************************
(XEN)
(XEN) Manual reset required ('noreboot' specified)

Looking to the code, the support of multicall looks valid to me, as we only
need to fill call.args[...]. So drop the BUG();

This is CVE-2015-7812 / XSA-145.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
master commit: 29bcf64ce8bc0b1b7aacd00c8668f255c4f0686c
master date: 2015-10-29 13:31:10 +0100

(cherry picked from commit ea95ecb8bf30f83b52a079cdfc824a3ba6ffd4ef)

Patch-Name: CVE-2015-7812.diff

Gbp-Pq: Name CVE-2015-7812.diff

tools-xenstore-compatibility.diff

Patch-Name: tools-xenstore-compatibility.diff

Gbp-Pq: Name tools-xenstore-compatibility.diff

tools-xenmon-install.diff

Patch-Name: tools-xenmon-install.diff

Gbp-Pq: Name tools-xenmon-install.diff

tools-include-install.diff

Patch-Name: tools-include-install.diff

Gbp-Pq: Name tools-include-install.diff

Remove static solaris support from pygrub

Patch-Name: tools-pygrub-remove-static-solaris-support

Gbp-Pq: Name tools-pygrub-remove-static-solaris-support

tools-xentrace-prefix.diff

Patch-Name: tools-xentrace-prefix.diff

Gbp-Pq: Name tools-xentrace-prefix.diff

tools-xenstore-prefix.diff

Patch-Name: tools-xenstore-prefix.diff

Gbp-Pq: Name tools-xenstore-prefix.diff

tools-xenstat-prefix.diff

Patch-Name: tools-xenstat-prefix.diff

Gbp-Pq: Name tools-xenstat-prefix.diff

tools-xenpmd-prefix.diff

Patch-Name: tools-xenpmd-prefix.diff

Gbp-Pq: Name tools-xenpmd-prefix.diff

tools-xenpaging-prefix.diff

Patch-Name: tools-xenpaging-prefix.diff

Gbp-Pq: Name tools-xenpaging-prefix.diff

tools-xenmon-prefix.diff

Patch-Name: tools-xenmon-prefix.diff

Gbp-Pq: Name tools-xenmon-prefix.diff

tools-xcutils-rpath.diff

Patch-Name: tools-xcutils-rpath.diff

Gbp-Pq: Name tools-xcutils-rpath.diff

tools-python-prefix.diff

Patch-Name: tools-python-prefix.diff

Gbp-Pq: Name tools-python-prefix.diff

tools-pygrub-prefix.diff

Patch-Name: tools-pygrub-prefix.diff

Gbp-Pq: Name tools-pygrub-prefix.diff

tools-misc-prefix.diff

Patch-Name: tools-misc-prefix.diff

Gbp-Pq: Name tools-misc-prefix.diff

tools-libxl-prefix.diff

Patch-Name: tools-libxl-prefix.diff

Gbp-Pq: Name tools-libxl-prefix.diff

tools-libfsimage-prefix.diff

Patch-Name: tools-libfsimage-prefix.diff

Gbp-Pq: Name tools-libfsimage-prefix.diff

tools-console-prefix.diff

Patch-Name: tools-console-prefix.diff

Gbp-Pq: Name tools-console-prefix.diff

tools-blktap2-prefix.diff

Patch-Name: tools-blktap2-prefix.diff

Gbp-Pq: Name tools-blktap2-prefix.diff

tools-rpath.diff

Patch-Name: tools-rpath.diff

Gbp-Pq: Name tools-rpath.diff

tools-xenstat-abiname.diff

Patch-Name: tools-xenstat-abiname.diff

Gbp-Pq: Name tools-xenstat-abiname.diff

tools-libxl-abiname.diff

Patch-Name: tools-libxl-abiname.diff

Gbp-Pq: Name tools-libxl-abiname.diff

tools-libxc-abiname.diff

Patch-Name: tools-libxc-abiname.diff

Gbp-Pq: Name tools-libxc-abiname.diff

tools-libfsimage-abiname.diff

Patch-Name: tools-libfsimage-abiname.diff

Gbp-Pq: Name tools-libfsimage-abiname.diff

config-prefix.diff

Patch-Name: config-prefix.diff

Gbp-Pq: Name config-prefix.diff

tools: allow configure time choice of libexec subdirectory.

Currently we hardcode various paths such as $libexec/xen/{bin,boot},
however some downstreams (notably Debian) would like instead to
install things into $libexec/xen-X.Y/{bin,boot} as part of allowing
multiple versions of the tools packages to be installed.

Since this currently involves patching configure its a bit fiddly,
provide a configure option for the leaf dir instead, name it
--with-libexec-leaf-dir similar to the existing
--with-sysconfig-leaf-dir.

Rather than have the determination of the full path in both configure
and config/Paths.mk.in move it into configure only. Also for
consistency move the other LIBEXEC_* to configure, even though they
are only substituted into Paths.mk.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Doug Goldstein <cardoe@cardoe.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: 805508@bugs.debian.org
[ ijc -- removed stray ` ]

(cherry picked from commit de858271c16851d662b2613699401df6ecec8ef8)

Patch-Name: tools-allow-configure-time-choice-of-libexec-subdire.patch

Gbp-Pq: Name tools-allow-configure-time-choice-of-libexec-subdire.patch

version

Patch-Name: version.diff

Gbp-Pq: Name version.diff

xen (4.6.0-1+nmu2) unstable; urgency=medium

  * Ensure debian/control.md5sum is correctly updated. Fixes FTBFS of
    4.6.0-1+nmu1 on buildds where linux-support-4.2.0-1 is not expected to be
    installed.

[dgit import unpatched xen 4.6.0-1+nmu2]

Import xen_4.6.0-1+nmu2.debian.tar.xz

[dgit import tarball xen 4.6.0-1+nmu2 xen_4.6.0-1+nmu2.debian.tar.xz]

Import xen_4.6.0.orig.tar.xz

[dgit import orig xen_4.6.0.orig.tar.xz]