[xen master] x86/spec: print the built-in SPECULATIVE_HARDEN_* options

[patchbot@xxxxxxx]

commit 6e9507f7d51fe49df8bc70f83e49ce06c92e4e54
Author:     Roger Pau Monné <roger.pau@xxxxxxxxxx>
AuthorDate: Tue Feb 27 14:57:52 2024 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Feb 27 14:57:52 2024 +0100

    x86/spec: print the built-in SPECULATIVE_HARDEN_* options
    
    Just like it's done for INDIRECT_THUNK and SHADOW_PAGING.
    
    Reported-by: Jan Beulich <jbeulich@xxxxxxxx>
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/spec_ctrl.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c
index 503f1c7a37..2d17cbe25f 100644
--- a/xen/arch/x86/spec_ctrl.c
+++ b/xen/arch/x86/spec_ctrl.c
@@ -476,13 +476,25 @@ static void __init print_details(enum ind_thunk thunk)
            (e21a & cpufeat_mask(X86_FEATURE_SBPB))           ? " SBPB"         
  : "");
 
     /* Compiled-in support which pertains to mitigations. */
-    if ( IS_ENABLED(CONFIG_INDIRECT_THUNK) || IS_ENABLED(CONFIG_SHADOW_PAGING) 
)
+    if ( IS_ENABLED(CONFIG_INDIRECT_THUNK) || IS_ENABLED(CONFIG_SHADOW_PAGING) 
||
+         IS_ENABLED(CONFIG_SPECULATIVE_HARDEN_ARRAY) ||
+         IS_ENABLED(CONFIG_SPECULATIVE_HARDEN_BRANCH) ||
+         IS_ENABLED(CONFIG_SPECULATIVE_HARDEN_GUEST_ACCESS) )
         printk("  Compiled-in support:"
 #ifdef CONFIG_INDIRECT_THUNK
                " INDIRECT_THUNK"
 #endif
 #ifdef CONFIG_SHADOW_PAGING
                " SHADOW_PAGING"
+#endif
+#ifdef CONFIG_SPECULATIVE_HARDEN_ARRAY
+               " HARDEN_ARRAY"
+#endif
+#ifdef CONFIG_SPECULATIVE_HARDEN_BRANCH
+               " HARDEN_BRANCH"
+#endif
+#ifdef CONFIG_SPECULATIVE_HARDEN_GUEST_ACCESS
+               " HARDEN_GUEST_ACCESS"
 #endif
                "\n");
 
--
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