[Xen-changelog] [xen-unstable] x86, hvm: Fix boot of HVM guests with pass-thru devices. Cache

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

# HG changeset patch
# User Keir Fraser <keir@xxxxxxxxxxxxx>
# Date 1194517307 0
# Node ID 03e7f6806adbefe9203bc292124a07c029edc707
# Parent  5b8730c78454f4400377b5b138767bbf5ffc778e
x86, hvm: Fix boot of HVM guests with pass-thru devices. Cache
attributes should not be propagated for Xen-heap pages.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 xen/arch/x86/mm/shadow/multi.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff -r 5b8730c78454 -r 03e7f6806adb xen/arch/x86/mm/shadow/multi.c
--- a/xen/arch/x86/mm/shadow/multi.c    Thu Nov 08 10:19:18 2007 +0000
+++ b/xen/arch/x86/mm/shadow/multi.c    Thu Nov 08 10:21:47 2007 +0000
@@ -745,10 +745,11 @@ _sh_propagate(struct vcpu *v,
 
     /*
      * For HVM domains with direct access to MMIO areas, set the correct
-     * caching attributes in the shadows to match what was asked for
+     * caching attributes in the shadows to match what was asked for.
      */
     if ( (level == 1) && is_hvm_domain(d) &&
-         !list_empty(&(domain_hvm_iommu(d)->pdev_list)) )
+         !list_empty(&(domain_hvm_iommu(d)->pdev_list)) &&
+         !is_xen_heap_mfn(mfn_x(target_mfn)) )
     {
         unsigned int type;
         if ( hvm_get_mem_pinned_cacheattr(d, gfn_x(target_gfn), &type) )

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