[xen staging] XSM: make .kexec() hook dependent upon KEXEC=y

[patchbot@xxxxxxx]

commit 430673b8455ea56f533991f52abcbea721843482
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Mon Aug 3 16:35:12 2026 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Aug 3 16:35:12 2026 +0200

    XSM: make .kexec() hook dependent upon KEXEC=y
    
    It's unreachable / dead otherwise.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
 xen/include/xsm/dummy.h | 2 ++
 xen/include/xsm/hooks.h | 2 ++
 xen/xsm/flask/hooks.c   | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/xen/include/xsm/dummy.h b/xen/include/xsm/dummy.h
index 7cedad01eb..4fe12f3c85 100644
--- a/xen/include/xsm/dummy.h
+++ b/xen/include/xsm/dummy.h
@@ -271,11 +271,13 @@ static XSM_INLINE int cf_check xsm_console_io(
     return xsm_default_action(XSM_PRIV, d, NULL);
 }
 
+#ifdef CONFIG_KEXEC
 static XSM_INLINE int cf_check xsm_kexec(XSM_DEFAULT_VOID)
 {
     XSM_ASSERT_ACTION(XSM_PRIV);
     return xsm_default_action(action, current->domain, NULL);
 }
+#endif
 
 static XSM_INLINE int cf_check xsm_schedop_shutdown(
     XSM_DEFAULT_ARG struct domain *d1, struct domain *d2)
diff --git a/xen/include/xsm/hooks.h b/xen/include/xsm/hooks.h
index e85c035f66..41c12c9306 100644
--- a/xen/include/xsm/hooks.h
+++ b/xen/include/xsm/hooks.h
@@ -61,7 +61,9 @@ XSM_HOOK(int, claim_pages, struct domain *)
 
 XSM_HOOK(int, console_io, struct domain *, int)
 
+#ifdef CONFIG_KEXEC
 XSM_HOOK(int, kexec)
+#endif
 
 XSM_HOOK(int, schedop_shutdown, struct domain *, struct domain *)
 
diff --git a/xen/xsm/flask/hooks.c b/xen/xsm/flask/hooks.c
index 8b1834ca0a..1656ac8f3c 100644
--- a/xen/xsm/flask/hooks.c
+++ b/xen/xsm/flask/hooks.c
@@ -536,10 +536,12 @@ static int cf_check flask_console_io(struct domain *d, 
int cmd)
     return domain_has_xen(d, perm);
 }
 
+#ifdef CONFIG_KEXEC
 static int cf_check flask_kexec(void)
 {
     return domain_has_xen(current->domain, XEN__KEXEC);
 }
+#endif
 
 static int cf_check flask_schedop_shutdown(struct domain *d1, struct domain 
*d2)
 {
--
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