xen: add upstream post-4.9.0 security fixes

Fixes the following security issues:

XSA-226: multiple problems with transitive grants (CVE-2017-12135)
XSA-227: x86: PV privilege escalation via map_grant_ref (CVE-2017-12137)
XSA-228: grant_table: Race conditions with maptrack free list handling
         (CVE-2017-12136)
XSA-230: grant_table: possibly premature clearing of GTF_writing /
         GTF_reading (CVE-2017-12855)
XSA-231: Missing NUMA node parameter verification (CVE-2017-14316)
XSA-232: Missing check for grant table (CVE-2017-14318)
XSA-233: cxenstored: Race in domain cleanup (CVE-2017-14317)
XSA-234: insufficient grant unmapping checks for x86 PV guests
         (CVE-2017-14319)
XSA-235: add-to-physmap error paths fail to release lock on ARM

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 304c93cdfbb588bf339e6a7402f3e882a4d088d3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/xen/xen.hash

@@ -1,2 +1,11 @@
 # Locally computed
 sha256 cade643fe3310d4d6f97d0c215c6fa323bc1130d7e64d7e2043ffaa73a96f33b xen-4.9.0.tar.gz
+sha256 b09e07aaf422ae04a4ece5e2c5b5e54036cfae5b5c632bfc6953a0cacd6f60ff xsa226.patch
+sha256 9923a47e5f86949800887596f098954a08ef73a01d74b1dbe16cab2e6b1fabb2 xsa227.patch
+sha256 1979e111442517891b483e316a15a760a4c992ac4440f95e361ff12f4bebff62 xsa228.patch
+sha256 77a73f1c32d083e315ef0b1bbb119cb8840ceb5ada790cad76cbfb9116f725cc xsa230.patch
+sha256 71a53a5133c8d4e381dd0e3e54205d31dea545ab62b261084dd3aea140f88cad xsa231-4.9.patch
+sha256 5068a78293daa58557c30c95141b775becfb650de6a5eda0d82a4a321ced551c xsa232.patch
+sha256 f721cc49ba692b2f36299b631451f51d7340b8b4732f74c98f01cb7a80d8662b xsa233.patch
+sha256 213f9d81a4ab785db67b9f579c9e88c9c8586c46b93f466a309060750df2df32 xsa234-4.9.patch
+sha256 d8f012734fbf6019c1ff864744e308c41dfb9c7804ca3be2771c2c972cdf4bd5 xsa235-4.9.patch

package/xen/xen.mk

@@ -6,6 +6,16 @@
 
 XEN_VERSION = 4.9.0
 XEN_SITE = https://downloads.xenproject.org/release/xen/$(XEN_VERSION)
+XEN_PATCH = \
+	https://xenbits.xenproject.org/xsa/xsa226.patch \
+	https://xenbits.xenproject.org/xsa/xsa227.patch \
+	https://xenbits.xenproject.org/xsa/xsa228.patch \
+	https://xenbits.xenproject.org/xsa/xsa230.patch \
+	https://xenbits.xenproject.org/xsa/xsa231-4.9.patch \
+	https://xenbits.xenproject.org/xsa/xsa232.patch \
+	https://xenbits.xenproject.org/xsa/xsa233.patch \
+	https://xenbits.xenproject.org/xsa/xsa234-4.9.patch \
+	https://xenbits.xenproject.org/xsa/xsa235-4.9.patch
 XEN_LICENSE = GPL-2.0
 XEN_LICENSE_FILES = COPYING
 XEN_DEPENDENCIES = host-acpica host-python