From: Paul Durrant <pdurr...@amazon.com>
The walk of page_list in dom0_construct_pv() should ignore PGC_extra pages
as they are only created for special purposes and, if mapped, will be mapped
explicitly for whatever purpose is relevant.
Signed-off-by: Paul Durrant <pdurr...@amazon.com>
---
Cc: Jan Beulich <jbeul...@suse.com>
Cc: Andrew Cooper <andrew.coop...@citrix.com>
Cc: Wei Liu <w...@xen.org>
Cc: "Roger Pau Monné" <roger....@citrix.com>
v2:
- New in v2
---
xen/arch/x86/pv/dom0_build.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c
index dc16ef2e79..f8f1bbe2f4 100644
--- a/xen/arch/x86/pv/dom0_build.c
+++ b/xen/arch/x86/pv/dom0_build.c
@@ -792,6 +792,10 @@ int __init dom0_construct_pv(struct domain *d,
{
mfn = mfn_x(page_to_mfn(page));
BUG_ON(SHARED_M2P(get_gpfn_from_mfn(mfn)));
+
+ if ( page->count_info & PGC_extra )
+ continue;
+
if ( get_gpfn_from_mfn(mfn) >= count )
{
BUG_ON(is_pv_32bit_domain(d));
--
2.20.1
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