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[PATCH v1 1/4] xen: arm: Add an empty stub for update_identity_mapping()
- To: <sstabellini@xxxxxxxxxx>, <bertrand.marquis@xxxxxxx>, <michal.orzel@xxxxxxx>, <ayan.kumar.halder@xxxxxxx>, <Volodymyr_Babchuk@xxxxxxxx>, <julien@xxxxxxx>
- From: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
- Date: Fri, 2 Aug 2024 13:14:40 +0100
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- Delivery-date: Fri, 02 Aug 2024 12:15:09 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
This is in continuation to commit
f661a20aa880: "Extract MMU-specific MM code".
update_identity_mapping() is defined for MMU specific logic.
It is invoked from smpboot.c. Thus, we add an empty stub to avoid
if-defery.
Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
---
xen/arch/arm/include/asm/arm64/mm.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/xen/arch/arm/include/asm/arm64/mm.h
b/xen/arch/arm/include/asm/arm64/mm.h
index e0bd23a6ed..f595205fa3 100644
--- a/xen/arch/arm/include/asm/arm64/mm.h
+++ b/xen/arch/arm/include/asm/arm64/mm.h
@@ -14,6 +14,7 @@ static inline bool arch_mfns_in_directmap(unsigned long mfn,
unsigned long nr)
void arch_setup_page_tables(void);
+#ifdef CONFIG_MMU
/*
* Enable/disable the identity mapping in the live page-tables (i.e.
* the one pointed by TTBR_EL2).
@@ -22,6 +23,11 @@ void arch_setup_page_tables(void);
* supported.
*/
void update_identity_mapping(bool enable);
+#else /* CONFIG_MMU */
+static inline void update_identity_mapping(bool enable)
+{
+}
+#endif /* CONFIG_MMU */
#endif /* __ARM_ARM64_MM_H__ */
--
2.25.1
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