Merge version 4.11.4+37-g3263f257ca-1+rpi1 and 4.11.4+57-g41a822c392-1 to produce...

diff --cc debian/changelog
index 86461cfd992d14369acb4a9a21602f0b9928b886,ecb75361c474c25642156c63aeb501f9010ddf50..a025b2dd951ea727ce4ec3d87aa2e119d2a260ae
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,15 -1,21 +1,34 @@@
- xen (4.11.4+37-g3263f257ca-1+rpi1) buster-staging; urgency=medium
++xen (4.11.4+57-g41a822c392-1+rpi1) buster-staging; urgency=medium
 +
 +  [changes brought forward from 4.4.1-9+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Sun, 30 Aug 2015 15:43:16 +0000]
 +  * replace "dmb" with "mcr p15, #0, r0, c7, c10, #5" for armv6
 +  
 +  [changes introduced in 4.6.0-1+rpi1 by Peter Michael Green]
 +  * Use kernel 3.18 for now as I haven't dealt with 4.x yet.
 +
 +  [changes introduced in 4.11.1+26-g87f51bf366-3+rpi1 by Peter Michael Green]
 +  * Do not fail on files that are not installed.
 +
-  -- Raspbian forward porter <root@raspbian.org>  Fri, 02 Oct 2020 23:52:54 +0000
++ -- Raspbian forward porter <root@raspbian.org>  Wed, 09 Dec 2020 23:42:56 +0000
++
+ xen (4.11.4+57-g41a822c392-1) buster-security; urgency=high
+ 
+   * Update to new upstream version 4.11.4+57-g41a822c392, which also contains
+     security fixes for the following issues:
+     - x86: Race condition in Xen mapping code
+       XSA-345 (CVE-2020-27672)
+     - undue deferral of IOMMU TLB flushes
+       XSA-346 (CVE-2020-27671)
+     - unsafe AMD IOMMU page table updates
+       XSA-347 (CVE-2020-27670)
+     - x86 PV guest INVLPG-like flushes may leave stale TLB entries
+       XSA-286 (CVE-2020-27674)
+     - Information leak via power sidechannel
+       XSA-351 (CVE-2020-28368)
+     - stack corruption from XSA-346 change
+       XSA-355 (CVE-2020-29040)
+ 
+  -- Hans van Kranenburg <hans@knorrie.org>  Thu, 03 Dec 2020 13:56:29 +0100
  
  xen (4.11.4+37-g3263f257ca-1) buster-security; urgency=high