[Xen-changelog] [xen-unstable] [HVM] Fix the kernel build failure issue on HVM SMP guests which

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Node ID 5fd332b263d4f0e32cad682f4b82038584dffaad
# Parent  43474e663b3d34ad2ad7de728ff25f96200aab3b
[HVM] Fix the kernel build failure issue on HVM SMP guests which
are using 2M PSE pages. Now we can do kernel build on:
 1) RHEL4 IA32 SMP guest on PAE host.
 2) RHEL4 IA32 SMP guest on IA32e host.
 3) IA32e SMP guest on IA32e host.

Signed-off-by: Xiaohui Xin <xiaohui.xin@xxxxxxxxx>
Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx>
---
 xen/arch/x86/shadow.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff -r 43474e663b3d -r 5fd332b263d4 xen/arch/x86/shadow.c
--- a/xen/arch/x86/shadow.c     Wed Jul 05 11:27:58 2006 +0100
+++ b/xen/arch/x86/shadow.c     Wed Jul 05 11:30:12 2006 +0100
@@ -1726,6 +1726,7 @@ static int resync_all(struct domain *d, 
                     {
                         guest_l1_pgentry_t tmp_gl1e = guest_l1e_empty();
                         validate_pte_change(d, tmp_gl1e, sl1e_p);
+                        unshadow_l1 = 1;
                         continue;
                     }
 #endif
@@ -3676,20 +3677,19 @@ static inline int l2e_rw_fault(
                 put_page_from_l1e(old_sl1e, d);
         }
 
-        l1_p[gpfn - start_gpfn] = sl1e;
-
         if (rw) {
             /* shadow_mark_va_out_of_sync() need modificatin for 2M pages*/
             if ( mfn_is_page_table(mfn) )
                 shadow_mark_va_out_of_sync_2mp(v, gpfn, mfn,
                   l2e_get_paddr(sl2e) | (sizeof(l1_pgentry_t) * (gpfn - 
start_gpfn)));
         }
+
+        l1_p[gpfn - start_gpfn] = sl1e;
     }
 
     unmap_domain_page(l1_p);
     *gl2e_p = gl2e;
     return 1;
-
 }
 
 /*

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