[xen staging] x86/p2m: guard EPT functions with using_vmx() check

[patchbot@xxxxxxx]

commit e961970ae2d6aec1dc826b29df7045192e9ee9ec
Author:     Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
AuthorDate: Thu Aug 1 13:56:09 2024 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Aug 1 13:56:09 2024 +0200

    x86/p2m: guard EPT functions with using_vmx() check
    
    Replace cpu_has_vmx check with using_vmx(), so that DCE would remove calls
    to functions ept_p2m_init() and ept_p2m_uninit() on non-VMX build.
    Since currently Intel EPT implementation depends on CONFIG_INTEL_VMX config
    option, when VMX is off these functions are unavailable.
    
    Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
    Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@xxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/mm/p2m-basic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/mm/p2m-basic.c b/xen/arch/x86/mm/p2m-basic.c
index 08007a687c..e126fda267 100644
--- a/xen/arch/x86/mm/p2m-basic.c
+++ b/xen/arch/x86/mm/p2m-basic.c
@@ -40,7 +40,7 @@ static int p2m_initialise(struct domain *d, struct p2m_domain 
*p2m)
     p2m_pod_init(p2m);
     p2m_nestedp2m_init(p2m);
 
-    if ( hap_enabled(d) && cpu_has_vmx )
+    if ( hap_enabled(d) && using_vmx() )
         ret = ept_p2m_init(p2m);
     else
         p2m_pt_init(p2m);
@@ -72,7 +72,7 @@ struct p2m_domain *p2m_init_one(struct domain *d)
 void p2m_free_one(struct p2m_domain *p2m)
 {
     p2m_free_logdirty(p2m);
-    if ( hap_enabled(p2m->domain) && cpu_has_vmx )
+    if ( hap_enabled(p2m->domain) && using_vmx() )
         ept_p2m_uninit(p2m);
     free_cpumask_var(p2m->dirty_cpumask);
     xfree(p2m);
--
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