From: Daniel Kiper <daniel.kiper@oracle.com>
Date: Wed, 11 Dec 2013 09:37:25 +0000 (+0100)
Subject: kexec/x86: do not map crash kernel area
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~5766^2
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=7113a45451a9f656deeff070e47672043ed83664;p=xen.git

kexec/x86: do not map crash kernel area

This mapping was apparently never used.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
---

diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index f07ee2bb80..4833ca33bd 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -1097,9 +1097,7 @@ void __init __start_xen(unsigned long mbi_p)
                          mod[i].mod_start,
                          PFN_UP(mod[i].mod_end), PAGE_HYPERVISOR);
     }
-    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);