[Xen-changelog] [xen stable-4.3] x86: make sure memory block is RAM before passing to the allocator

[patchbot@xxxxxxx]

commit ff8c797392bddc04a35463958bfc2d981734d345
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Fri Nov 15 11:23:04 2013 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Nov 15 11:23:04 2013 +0100

    x86: make sure memory block is RAM before passing to the allocator
    
    Memory blocks outside of the always visible 1:1 mapping range get
    passed to the allocator separately (once enough other setup was done).
    Skipping non-RAM regions, however, was forgotten in adc5afbf ("x86:
    support up to 16Tb").
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Keir Fraser <keir@xxxxxxx>
    master commit: 227258983401b7e6091967ffaf22ad83f4ebaf6f
    master date: 2013-11-04 14:29:24 +0100
---
 xen/arch/x86/setup.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 0b92874..cd524e3 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -1154,6 +1154,8 @@ void __init __start_xen(unsigned long mbi_p)
         {
             uint64_t s, e;
 
+            if ( boot_e820.map[i].type != E820_RAM )
+                continue;
             s = (boot_e820.map[i].addr + mask) & ~mask;
             e = (boot_e820.map[i].addr + boot_e820.map[i].size) & ~mask;
             if ( PFN_DOWN(e) <= limit )
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.3

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