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[PATCH v3 02/28] xen/mem_sharing: wrap hvm_copy_context_and_params() with CONFIG_MEM_SHARING
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Penny Zheng <Penny.Zheng@xxxxxxx>
- Date: Mon, 13 Oct 2025 18:15:14 +0800
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- Cc: <ray.huang@xxxxxxx>, <oleksii.kurochko@xxxxxxxxx>, Penny Zheng <Penny.Zheng@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Mon, 13 Oct 2025 10:16:43 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
The only reference of hvm_copy_context_and_params() is in
arch/x86/mm/mem_sharing.c, so it shall be wrapped with CONFIG_MEM_SHARING.
Otherwise it will become unreachable when MEM_SHARING=n, and hence violating
Misra rule 2.1.
Signed-off-by: Penny Zheng <Penny.Zheng@xxxxxxx>
---
v2 -> v3:
- new commit
---
xen/arch/x86/hvm/hvm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index 0c60faa39d..239cd992a4 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -5458,6 +5458,7 @@ void hvm_set_segment_register(struct vcpu *v, enum
x86_segment seg,
alternative_vcall(hvm_funcs.set_segment_register, v, seg, reg);
}
+#ifdef CONFIG_MEM_SHARING
int hvm_copy_context_and_params(struct domain *dst, struct domain *src)
{
struct hvm_domain_context c = { .size = hvm_save_size(src) };
@@ -5489,6 +5490,7 @@ int hvm_copy_context_and_params(struct domain *dst,
struct domain *src)
return rc;
}
+#endif /* CONFIG_MEM_SHARING */
/*
* Local variables:
--
2.34.1
|
