Merge tag 'for-linus-4.3-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull xen updates from David Vrabel:
 "Xen features and fixes for 4.3:

   - Convert xen-blkfront to the multiqueue API
   - [arm] Support binding event channels to different VCPUs.
   - [x86] Support > 512 GiB in a PV guests (off by default as such a
     guest cannot be migrated with the current toolstack).
   - [x86] PMU support for PV dom0 (limited support for using perf with
     Xen and other guests)"

* tag 'for-linus-4.3-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (33 commits)
  xen: switch extra memory accounting to use pfns
  xen: limit memory to architectural maximum
  xen: avoid another early crash of memory limited dom0
  xen: avoid early crash of memory limited dom0
  arm/xen: Remove helpers which are PV specific
  xen/x86: Don't try to set PCE bit in CR4
  xen/PMU: PMU emulation code
  xen/PMU: Intercept PMU-related MSR and APIC accesses
  xen/PMU: Describe vendor-specific PMU registers
  xen/PMU: Initialization code for Xen PMU
  xen/PMU: Sysfs interface for setting Xen PMU mode
  xen: xensyms support
  xen: remove no longer needed p2m.h
  xen: allow more than 512 GB of RAM for 64 bit pv-domains
  xen: move p2m list if conflicting with e820 map
  xen: add explicit memblock_reserve() calls for special pages
  mm: provide early_memremap_ro to establish read-only mapping
  xen: check for initrd conflicting with e820 map
  xen: check pre-allocated page tables for conflict with memory map
  xen: check for kernel memory conflicting with memory layout
  ...

diff --cc Documentation/kernel-parameters.txt
Simple merge

diff --cc arch/x86/xen/Kconfig
index 4841453,a8ffdb8..c7b15f3
--- 1/arch/x86/xen/Kconfig
--- 2/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@@ -7,8 -7,9 +7,9 @@@ config XE
        depends on PARAVIRT
        select PARAVIRT_CLOCK
        select XEN_HAVE_PVMMU
+       select XEN_HAVE_VPMU
        depends on X86_64 || (X86_32 && X86_PAE)
 -      depends on X86_TSC
 +      depends on X86_LOCAL_APIC && X86_TSC
        help
          This is the Linux Xen port.  Enabling this will allow the
          kernel to boot in a paravirtualized environment under the

diff --cc arch/x86/xen/enlighten.c
index d9cfa45,25309c1..30d12af
--- 1/arch/x86/xen/enlighten.c
--- 2/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@@ -1215,8 -1219,11 +1219,8 @@@ static const struct pv_cpu_ops xen_cpu_
        .read_msr = xen_read_msr_safe,
        .write_msr = xen_write_msr_safe,
  
-       .read_pmc = native_read_pmc,
 -      .read_tsc = native_read_tsc,
+       .read_pmc = xen_read_pmc,
  
 -      .read_tscp = native_read_tscp,
 -
        .iret = xen_iret,
  #ifdef CONFIG_X86_64
        .usergs_sysret32 = xen_sysret32,

diff --cc drivers/block/xen-blkfront.c
Simple merge

diff --cc drivers/xen/events/events_base.c
Simple merge