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author | Keir Fraser <keir.fraser@citrix.com> | 2008-08-13 12:12:08 +0100 |
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committer | Keir Fraser <keir.fraser@citrix.com> | 2008-08-13 12:12:08 +0100 |
commit | c954127bc64c613ba7a7feff17a1646677a6977d (patch) | |
tree | 3530e6062e4c6c63c8aed85a3d2b80eaf56388f5 | |
parent | a87b010c67fa312b5bfd7bd284580c21b0e1c9fd (diff) | |
download | xen-c954127bc64c613ba7a7feff17a1646677a6977d.tar.gz xen-c954127bc64c613ba7a7feff17a1646677a6977d.tar.bz2 xen-c954127bc64c613ba7a7feff17a1646677a6977d.zip |
x86 shadow: Relax BUILD_BUG_ON() regarding struct sizes.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
-rw-r--r-- | xen/arch/x86/mm/shadow/private.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/xen/arch/x86/mm/shadow/private.h b/xen/arch/x86/mm/shadow/private.h index 88b899f84e..b7b93c6f25 100644 --- a/xen/arch/x86/mm/shadow/private.h +++ b/xen/arch/x86/mm/shadow/private.h @@ -213,15 +213,14 @@ struct shadow_page_info }; }; -/* The structure above *must* be the same size as a struct page_info +/* The structure above *must* be no larger than a struct page_info * from mm.h, since we'll be using the same space in the frametable. * Also, the mbz field must line up with the owner field of normal * pages, so they look properly like anonymous/xen pages. */ static inline void shadow_check_page_struct_offsets(void) { - BUILD_BUG_ON(sizeof (struct shadow_page_info) - != sizeof (struct page_info)); - BUILD_BUG_ON(offsetof(struct shadow_page_info, mbz) - != offsetof(struct page_info, u.inuse._domain)); + BUILD_BUG_ON(sizeof (struct shadow_page_info) < sizeof (struct page_info)); + BUILD_BUG_ON(offsetof(struct shadow_page_info, mbz) != + offsetof(struct page_info, u.inuse._domain)); }; /* Shadow type codes */ |