[Xen-devel] [PATCH v2 05/23] x86: provide stub for memory_type_changed

[Wei Liu <wei.liu2@xxxxxxxxxx>]

Jan indicated that for PV guests the memory type is not changed, for
HVM guests memory_type_changed is needed for EPT's effective memory
type calculation.  This means memory_type_changed is HVM only.

Provide a stub to minimise code churn.

Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 xen/include/asm-x86/mtrr.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xen/include/asm-x86/mtrr.h b/xen/include/asm-x86/mtrr.h
index 7edcb94..4be704c 100644
--- a/xen/include/asm-x86/mtrr.h
+++ b/xen/include/asm-x86/mtrr.h
@@ -92,7 +92,12 @@ extern bool_t mtrr_fix_range_msr_set(struct domain *, struct 
mtrr_state *,
                                      uint32_t row, uint64_t msr_content);
 extern bool_t mtrr_def_type_msr_set(struct domain *, struct mtrr_state *,
                                     uint64_t msr_content);
+#ifdef CONFIG_HVM
 extern void memory_type_changed(struct domain *);
+#else
+static inline void memory_type_changed(struct domain *d) {}
+#endif
+
 extern bool_t pat_msr_set(uint64_t *pat, uint64_t msr);
 
 bool is_var_mtrr_overlapped(const struct mtrr_state *m);
-- 
git-series 0.9.1

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