[Xen-changelog] [xen stable-4.2] kexec/x86: do not map crash kernel area

[patchbot@xxxxxxx]

commit dff90d0c989624e08c8b191316586f919b3d1483
Author:     Daniel Kiper <daniel.kiper@xxxxxxxxxx>
AuthorDate: Fri Jan 10 11:43:20 2014 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Jan 10 11:43:20 2014 +0100

    kexec/x86: do not map crash kernel area
    
    This mapping was apparently never used.
    
    Suggested-by: Jan Beulich <jbeulich@xxxxxxxx>
    Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
    Acked-by: David Vrabel <david.vrabel@xxxxxxxxxx>
    master commit: 7113a45451a9f656deeff070e47672043ed83664
    master date: 2013-12-11 10:37:25 +0100
---
 xen/arch/x86/setup.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index c512059..ea43fb1 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -1101,9 +1101,7 @@ void __init __start_xen(unsigned long mbi_p)
 #endif
     }
 #ifdef CONFIG_X86_64
-    map_pages_to_xen((unsigned long)__va(kexec_crash_area.start),
-                     kexec_crash_area.start >> PAGE_SHIFT,
-                     PFN_UP(kexec_crash_area.size), PAGE_HYPERVISOR);
+
     xen_virt_end = ((unsigned long)_end + (1UL << L2_PAGETABLE_SHIFT) - 1) &
                    ~((1UL << L2_PAGETABLE_SHIFT) - 1);
     destroy_xen_mappings(xen_virt_end, XEN_VIRT_START + BOOTSTRAP_MAP_BASE);
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.2

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